1 | // (C) Copyright Jeremy Siek 2004 |
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2 | // Distributed under the Boost Software License, Version 1.0. (See |
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3 | // accompanying file LICENSE_1_0.txt or copy at |
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4 | // http://www.boost.org/LICENSE_1_0.txt) |
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5 | |
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6 | /* |
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7 | Fri Aug 15 16:29:47 EDT 1997 |
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8 | |
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9 | Harwell-Boeing File I/O in C |
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10 | V. 1.0 |
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11 | |
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12 | National Institute of Standards and Technology, MD. |
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13 | K.A. Remington |
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14 | |
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15 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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16 | NOTICE |
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17 | |
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18 | Permission to use, copy, modify, and distribute this software and |
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19 | its documentation for any purpose and without fee is hereby granted |
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20 | provided that the above copyright notice appear in all copies and |
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21 | that both the copyright notice and this permission notice appear in |
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22 | supporting documentation. |
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23 | |
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24 | Neither the Author nor the Institution (National Institute of Standards |
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25 | and Technology) make any representations about the suitability of this |
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26 | software for any purpose. This software is provided "as is" without |
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27 | expressed or implied warranty. |
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28 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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29 | |
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30 | --------------------- |
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31 | INTERFACE DESCRIPTION |
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32 | --------------------- |
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33 | --------------- |
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34 | QUERY FUNCTIONS |
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35 | --------------- |
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36 | |
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37 | FUNCTION: |
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38 | |
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39 | int readHB_info(const char *filename, int *M, int *N, int *nz, |
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40 | char **Type, int *Nrhs) |
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41 | |
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42 | DESCRIPTION: |
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43 | |
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44 | The readHB_info function opens and reads the header information from |
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45 | the specified Harwell-Boeing file, and reports back the number of rows |
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46 | and columns in the stored matrix (M and N), the number of nonzeros in |
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47 | the matrix (nz), the 3-character matrix type(Type), and the number of |
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48 | right-hand-sides stored along with the matrix (Nrhs). This function |
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49 | is designed to retrieve basic size information which can be used to |
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50 | allocate arrays. |
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51 | |
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52 | FUNCTION: |
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53 | |
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54 | int readHB_header(FILE* in_file, char* Title, char* Key, char* Type, |
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55 | int* Nrow, int* Ncol, int* Nnzero, int* Nrhs, |
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56 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
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57 | int* Ptrcrd, int* Indcrd, int* Valcrd, int* Rhscrd, |
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58 | char *Rhstype) |
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59 | |
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60 | DESCRIPTION: |
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61 | |
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62 | More detailed than the readHB_info function, readHB_header() reads from |
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63 | the specified Harwell-Boeing file all of the header information. |
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64 | |
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65 | |
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66 | ------------------------------ |
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67 | DOUBLE PRECISION I/O FUNCTIONS |
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68 | ------------------------------ |
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69 | FUNCTION: |
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70 | |
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71 | int readHB_newmat_double(const char *filename, int *M, int *N, *int nz, |
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72 | int **colptr, int **rowind, double**val) |
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73 | |
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74 | int readHB_mat_double(const char *filename, int *colptr, int *rowind, |
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75 | double*val) |
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76 | |
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77 | |
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78 | DESCRIPTION: |
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79 | |
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80 | This function opens and reads the specified file, interpreting its |
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81 | contents as a sparse matrix stored in the Harwell/Boeing standard |
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82 | format. (See readHB_aux_double to read auxillary vectors.) |
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83 | -- Values are interpreted as double precision numbers. -- |
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84 | |
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85 | The "mat" function uses _pre-allocated_ vectors to hold the index and |
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86 | nonzero value information. |
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87 | |
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88 | The "newmat" function allocates vectors to hold the index and nonzero |
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89 | value information, and returns pointers to these vectors along with |
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90 | matrix dimension and number of nonzeros. |
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91 | |
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92 | FUNCTION: |
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93 | |
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94 | int readHB_aux_double(const char* filename, const char AuxType, double b[]) |
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95 | |
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96 | int readHB_newaux_double(const char* filename, const char AuxType, double** b) |
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97 | |
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98 | DESCRIPTION: |
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99 | |
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100 | This function opens and reads from the specified file auxillary vector(s). |
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101 | The char argument Auxtype determines which type of auxillary vector(s) |
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102 | will be read (if present in the file). |
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103 | |
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104 | AuxType = 'F' right-hand-side |
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105 | AuxType = 'G' initial estimate (Guess) |
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106 | AuxType = 'X' eXact solution |
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107 | |
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108 | If Nrhs > 1, all of the Nrhs vectors of the given type are read and |
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109 | stored in column-major order in the vector b. |
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110 | |
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111 | The "newaux" function allocates a vector to hold the values retrieved. |
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112 | The "mat" function uses a _pre-allocated_ vector to hold the values. |
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113 | |
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114 | FUNCTION: |
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115 | |
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116 | int writeHB_mat_double(const char* filename, int M, int N, |
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117 | int nz, const int colptr[], const int rowind[], |
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118 | const double val[], int Nrhs, const double rhs[], |
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119 | const double guess[], const double exact[], |
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120 | const char* Title, const char* Key, const char* Type, |
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121 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
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122 | const char* Rhstype) |
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123 | |
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124 | DESCRIPTION: |
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125 | |
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126 | The writeHB_mat_double function opens the named file and writes the specified |
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127 | matrix and optional auxillary vector(s) to that file in Harwell-Boeing |
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128 | format. The format arguments (Ptrfmt,Indfmt,Valfmt, and Rhsfmt) are |
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129 | character strings specifying "Fortran-style" output formats -- as they |
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130 | would appear in a Harwell-Boeing file. They are used to produce output |
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131 | which is as close as possible to what would be produced by Fortran code, |
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132 | but note that "D" and "P" edit descriptors are not supported. |
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133 | If NULL, the following defaults will be used: |
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134 | Ptrfmt = Indfmt = "(8I10)" |
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135 | Valfmt = Rhsfmt = "(4E20.13)" |
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136 | |
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137 | ----------------------- |
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138 | CHARACTER I/O FUNCTIONS |
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139 | ----------------------- |
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140 | FUNCTION: |
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141 | |
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142 | int readHB_mat_char(const char* filename, int colptr[], int rowind[], |
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143 | char val[], char* Valfmt) |
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144 | int readHB_newmat_char(const char* filename, int* M, int* N, int* nonzeros, |
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145 | int** colptr, int** rowind, char** val, char** Valfmt) |
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146 | |
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147 | DESCRIPTION: |
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148 | |
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149 | This function opens and reads the specified file, interpreting its |
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150 | contents as a sparse matrix stored in the Harwell/Boeing standard |
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151 | format. (See readHB_aux_char to read auxillary vectors.) |
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152 | -- Values are interpreted as char strings. -- |
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153 | (Used to translate exact values from the file into a new storage format.) |
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154 | |
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155 | The "mat" function uses _pre-allocated_ arrays to hold the index and |
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156 | nonzero value information. |
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157 | |
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158 | The "newmat" function allocates char arrays to hold the index |
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159 | and nonzero value information, and returns pointers to these arrays |
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160 | along with matrix dimension and number of nonzeros. |
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161 | |
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162 | FUNCTION: |
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163 | |
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164 | int readHB_aux_char(const char* filename, const char AuxType, char b[]) |
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165 | int readHB_newaux_char(const char* filename, const char AuxType, char** b, |
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166 | char** Rhsfmt) |
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167 | |
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168 | DESCRIPTION: |
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169 | |
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170 | This function opens and reads from the specified file auxillary vector(s). |
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171 | The char argument Auxtype determines which type of auxillary vector(s) |
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172 | will be read (if present in the file). |
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173 | |
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174 | AuxType = 'F' right-hand-side |
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175 | AuxType = 'G' initial estimate (Guess) |
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176 | AuxType = 'X' eXact solution |
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177 | |
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178 | If Nrhs > 1, all of the Nrhs vectors of the given type are read and |
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179 | stored in column-major order in the vector b. |
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180 | |
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181 | The "newaux" function allocates a character array to hold the values |
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182 | retrieved. |
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183 | The "mat" function uses a _pre-allocated_ array to hold the values. |
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184 | |
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185 | FUNCTION: |
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186 | |
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187 | int writeHB_mat_char(const char* filename, int M, int N, |
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188 | int nz, const int colptr[], const int rowind[], |
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189 | const char val[], int Nrhs, const char rhs[], |
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190 | const char guess[], const char exact[], |
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191 | const char* Title, const char* Key, const char* Type, |
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192 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
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193 | const char* Rhstype) |
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194 | |
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195 | DESCRIPTION: |
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196 | |
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197 | The writeHB_mat_char function opens the named file and writes the specified |
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198 | matrix and optional auxillary vector(s) to that file in Harwell-Boeing |
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199 | format. The format arguments (Ptrfmt,Indfmt,Valfmt, and Rhsfmt) are |
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200 | character strings specifying "Fortran-style" output formats -- as they |
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201 | would appear in a Harwell-Boeing file. Valfmt and Rhsfmt must accurately |
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202 | represent the character representation of the values stored in val[] |
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203 | and rhs[]. |
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204 | |
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205 | If NULL, the following defaults will be used for the integer vectors: |
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206 | Ptrfmt = Indfmt = "(8I10)" |
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207 | Valfmt = Rhsfmt = "(4E20.13)" |
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208 | |
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209 | |
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210 | */ |
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211 | |
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212 | /*---------------------------------------------------------------------*/ |
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213 | /* If zero-based indexing is desired, _SP_base should be set to 0 */ |
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214 | /* This will cause indices read from H-B files to be decremented by 1 */ |
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215 | /* and indices written to H-B files to be incremented by 1 */ |
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216 | /* <<< Standard usage is _SP_base = 1 >>> */ |
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217 | #ifndef _SP_base |
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218 | #define _SP_base 1 |
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219 | #endif |
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220 | /*---------------------------------------------------------------------*/ |
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221 | |
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222 | #include "iohb.h" |
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223 | #include<stdio.h> |
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224 | #include<stdlib.h> |
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225 | #include<string.h> |
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226 | #include<math.h> |
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227 | |
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228 | char* substr(const char* S, const int pos, const int len); |
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229 | void upcase(char* S); |
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230 | void IOHBTerminate(char* message); |
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231 | |
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232 | int readHB_info(const char* filename, int* M, int* N, int* nz, char** Type, |
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233 | int* Nrhs) |
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234 | { |
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235 | /****************************************************************************/ |
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236 | /* The readHB_info function opens and reads the header information from */ |
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237 | /* the specified Harwell-Boeing file, and reports back the number of rows */ |
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238 | /* and columns in the stored matrix (M and N), the number of nonzeros in */ |
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239 | /* the matrix (nz), and the number of right-hand-sides stored along with */ |
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240 | /* the matrix (Nrhs). */ |
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241 | /* */ |
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242 | /* For a description of the Harwell Boeing standard, see: */ |
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243 | /* Duff, et al., ACM TOMS Vol.15, No.1, March 1989 */ |
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244 | /* */ |
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245 | /* ---------- */ |
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246 | /* **CAVEAT** */ |
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247 | /* ---------- */ |
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248 | /* ** If the input file does not adhere to the H/B format, the ** */ |
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249 | /* ** results will be unpredictable. ** */ |
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250 | /* */ |
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251 | /****************************************************************************/ |
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252 | FILE *in_file; |
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253 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
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254 | int Nrow, Ncol, Nnzero; |
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255 | char* mat_type; |
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256 | char Title[73], Key[9], Rhstype[4]; |
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257 | char Ptrfmt[17], Indfmt[17], Valfmt[21], Rhsfmt[21]; |
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258 | |
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259 | mat_type = *Type; |
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260 | if ( mat_type == NULL ) IOHBTerminate("Insufficient memory for mat_typen"); |
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261 | |
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262 | if ( (in_file = fopen( filename, "r")) == NULL ) { |
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263 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
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264 | return 0; |
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265 | } |
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266 | |
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267 | readHB_header(in_file, Title, Key, mat_type, &Nrow, &Ncol, &Nnzero, Nrhs, |
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268 | Ptrfmt, Indfmt, Valfmt, Rhsfmt, |
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269 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
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270 | fclose(in_file); |
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271 | *Type = mat_type; |
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272 | *(*Type+3) = (char) NULL; |
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273 | *M = Nrow; |
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274 | *N = Ncol; |
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275 | *nz = Nnzero; |
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276 | if (Rhscrd == 0) {*Nrhs = 0;} |
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277 | |
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278 | /* In verbose mode, print some of the header information: */ |
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279 | /* |
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280 | if (verbose == 1) |
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281 | { |
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282 | printf("Reading from Harwell-Boeing file %s (verbose on)...\n",filename); |
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283 | printf(" Title: %s\n",Title); |
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284 | printf(" Key: %s\n",Key); |
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285 | printf(" The stored matrix is %i by %i with %i nonzeros.\n", |
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286 | *M, *N, *nz ); |
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287 | printf(" %i right-hand--side(s) stored.\n",*Nrhs); |
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288 | } |
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289 | */ |
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290 | |
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291 | return 1; |
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292 | |
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293 | } |
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294 | |
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295 | |
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296 | |
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297 | int readHB_header(FILE* in_file, char* Title, char* Key, char* Type, |
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298 | int* Nrow, int* Ncol, int* Nnzero, int* Nrhs, |
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299 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
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300 | int* Ptrcrd, int* Indcrd, int* Valcrd, int* Rhscrd, |
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301 | char *Rhstype) |
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302 | { |
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303 | /*************************************************************************/ |
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304 | /* Read header information from the named H/B file... */ |
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305 | /*************************************************************************/ |
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306 | int Totcrd,Neltvl,Nrhsix; |
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307 | char line[BUFSIZ]; |
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308 | |
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309 | /* First line: */ |
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310 | fgets(line, BUFSIZ, in_file); |
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311 | if ( sscanf(line,"%*s") < 0 ) |
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312 | IOHBTerminate("iohb.c: Null (or blank) first line of HB file.\n"); |
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313 | (void) sscanf(line, "%72c%8[^\n]", Title, Key); |
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314 | *(Key+8) = (char) NULL; |
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315 | *(Title+72) = (char) NULL; |
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316 | |
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317 | /* Second line: */ |
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318 | fgets(line, BUFSIZ, in_file); |
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319 | if ( sscanf(line,"%*s") < 0 ) |
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320 | IOHBTerminate("iohb.c: Null (or blank) second line of HB file.\n"); |
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321 | if ( sscanf(line,"%i",&Totcrd) != 1) Totcrd = 0; |
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322 | if ( sscanf(line,"%*i%i",Ptrcrd) != 1) *Ptrcrd = 0; |
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323 | if ( sscanf(line,"%*i%*i%i",Indcrd) != 1) *Indcrd = 0; |
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324 | if ( sscanf(line,"%*i%*i%*i%i",Valcrd) != 1) *Valcrd = 0; |
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325 | if ( sscanf(line,"%*i%*i%*i%*i%i",Rhscrd) != 1) *Rhscrd = 0; |
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326 | |
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327 | /* Third line: */ |
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328 | fgets(line, BUFSIZ, in_file); |
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329 | if ( sscanf(line,"%*s") < 0 ) |
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330 | IOHBTerminate("iohb.c: Null (or blank) third line of HB file.\n"); |
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331 | if ( sscanf(line, "%3c", Type) != 1) |
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332 | IOHBTerminate("iohb.c: Invalid Type info, line 3 of Harwell-Boeing file.\n"); |
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333 | upcase(Type); |
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334 | if ( sscanf(line,"%*3c%i",Nrow) != 1) *Nrow = 0 ; |
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335 | if ( sscanf(line,"%*3c%*i%i",Ncol) != 1) *Ncol = 0 ; |
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336 | if ( sscanf(line,"%*3c%*i%*i%i",Nnzero) != 1) *Nnzero = 0 ; |
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337 | if ( sscanf(line,"%*3c%*i%*i%*i%i",&Neltvl) != 1) Neltvl = 0 ; |
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338 | |
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339 | /* Fourth line: */ |
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340 | fgets(line, BUFSIZ, in_file); |
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341 | if ( sscanf(line,"%*s") < 0 ) |
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342 | IOHBTerminate("iohb.c: Null (or blank) fourth line of HB file.\n"); |
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343 | if ( sscanf(line, "%16c",Ptrfmt) != 1) |
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344 | IOHBTerminate("iohb.c: Invalid format info, line 4 of Harwell-Boeing file.\n"); |
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345 | if ( sscanf(line, "%*16c%16c",Indfmt) != 1) |
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346 | IOHBTerminate("iohb.c: Invalid format info, line 4 of Harwell-Boeing file.\n"); |
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347 | if ( sscanf(line, "%*16c%*16c%20c",Valfmt) != 1) |
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348 | IOHBTerminate("iohb.c: Invalid format info, line 4 of Harwell-Boeing file.\n"); |
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349 | sscanf(line, "%*16c%*16c%*20c%20c",Rhsfmt); |
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350 | *(Ptrfmt+16) = (char) NULL; |
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351 | *(Indfmt+16) = (char) NULL; |
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352 | *(Valfmt+20) = (char) NULL; |
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353 | *(Rhsfmt+20) = (char) NULL; |
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354 | |
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355 | /* (Optional) Fifth line: */ |
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356 | if (*Rhscrd != 0 ) |
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357 | { |
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358 | fgets(line, BUFSIZ, in_file); |
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359 | if ( sscanf(line,"%*s") < 0 ) |
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360 | IOHBTerminate("iohb.c: Null (or blank) fifth line of HB file.\n"); |
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361 | if ( sscanf(line, "%3c", Rhstype) != 1) |
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362 | IOHBTerminate("iohb.c: Invalid RHS type information, line 5 of Harwell-Boeing file.\n"); |
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363 | if ( sscanf(line, "%*3c%i", Nrhs) != 1) *Nrhs = 0; |
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364 | if ( sscanf(line, "%*3c%*i%i", &Nrhsix) != 1) Nrhsix = 0; |
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365 | } |
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366 | return 1; |
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367 | } |
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368 | |
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369 | |
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370 | int readHB_mat_double(const char* filename, int colptr[], int rowind[], |
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371 | double val[]) |
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372 | { |
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373 | /****************************************************************************/ |
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374 | /* This function opens and reads the specified file, interpreting its */ |
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375 | /* contents as a sparse matrix stored in the Harwell/Boeing standard */ |
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376 | /* format and creating compressed column storage scheme vectors to hold */ |
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377 | /* the index and nonzero value information. */ |
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378 | /* */ |
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379 | /* ---------- */ |
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380 | /* **CAVEAT** */ |
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381 | /* ---------- */ |
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382 | /* Parsing real formats from Fortran is tricky, and this file reader */ |
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383 | /* does not claim to be foolproof. It has been tested for cases when */ |
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384 | /* the real values are printed consistently and evenly spaced on each */ |
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385 | /* line, with Fixed (F), and Exponential (E or D) formats. */ |
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386 | /* */ |
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387 | /* ** If the input file does not adhere to the H/B format, the ** */ |
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388 | /* ** results will be unpredictable. ** */ |
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389 | /* */ |
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390 | /****************************************************************************/ |
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391 | FILE *in_file; |
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392 | int i,j,ind,col,offset,count,last,Nrhs; |
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393 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
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394 | int Nrow, Ncol, Nnzero, Nentries; |
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395 | int Ptrperline, Ptrwidth, Indperline, Indwidth; |
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396 | int Valperline, Valwidth, Valprec; |
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397 | int Valflag; /* Indicates 'E','D', or 'F' float format */ |
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398 | char* ThisElement; |
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399 | char Title[73], Key[8], Type[4], Rhstype[4]; |
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400 | char Ptrfmt[17], Indfmt[17], Valfmt[21], Rhsfmt[21]; |
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401 | char line[BUFSIZ]; |
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402 | |
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403 | if ( (in_file = fopen( filename, "r")) == NULL ) { |
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404 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
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405 | return 0; |
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406 | } |
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407 | |
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408 | readHB_header(in_file, Title, Key, Type, &Nrow, &Ncol, &Nnzero, &Nrhs, |
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409 | Ptrfmt, Indfmt, Valfmt, Rhsfmt, |
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410 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
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411 | |
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412 | /* Parse the array input formats from Line 3 of HB file */ |
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413 | ParseIfmt(Ptrfmt,&Ptrperline,&Ptrwidth); |
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414 | ParseIfmt(Indfmt,&Indperline,&Indwidth); |
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415 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
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416 | ParseRfmt(Valfmt,&Valperline,&Valwidth,&Valprec,&Valflag); |
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417 | } |
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418 | |
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419 | /* Read column pointer array: */ |
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420 | |
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421 | offset = 1-_SP_base; /* if base 0 storage is declared (via macro definition), */ |
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422 | /* then storage entries are offset by 1 */ |
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423 | |
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424 | ThisElement = (char *) malloc(Ptrwidth+1); |
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425 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
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426 | *(ThisElement+Ptrwidth) = (char) NULL; |
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427 | count=0; |
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428 | for (i=0;i<Ptrcrd;i++) |
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429 | { |
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430 | fgets(line, BUFSIZ, in_file); |
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431 | if ( sscanf(line,"%*s") < 0 ) |
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432 | IOHBTerminate("iohb.c: Null (or blank) line in pointer data region of HB file.\n"); |
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433 | col = 0; |
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434 | for (ind = 0;ind<Ptrperline;ind++) |
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435 | { |
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436 | if (count > Ncol) break; |
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437 | strncpy(ThisElement,line+col,Ptrwidth); |
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438 | /* ThisElement = substr(line,col,Ptrwidth); */ |
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439 | colptr[count] = atoi(ThisElement)-offset; |
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440 | count++; col += Ptrwidth; |
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441 | } |
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442 | } |
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443 | free(ThisElement); |
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444 | |
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445 | /* Read row index array: */ |
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446 | |
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447 | ThisElement = (char *) malloc(Indwidth+1); |
---|
448 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
449 | *(ThisElement+Indwidth) = (char) NULL; |
---|
450 | count = 0; |
---|
451 | for (i=0;i<Indcrd;i++) |
---|
452 | { |
---|
453 | fgets(line, BUFSIZ, in_file); |
---|
454 | if ( sscanf(line,"%*s") < 0 ) |
---|
455 | IOHBTerminate("iohb.c: Null (or blank) line in index data region of HB file.\n"); |
---|
456 | col = 0; |
---|
457 | for (ind = 0;ind<Indperline;ind++) |
---|
458 | { |
---|
459 | if (count == Nnzero) break; |
---|
460 | strncpy(ThisElement,line+col,Indwidth); |
---|
461 | /* ThisElement = substr(line,col,Indwidth); */ |
---|
462 | rowind[count] = atoi(ThisElement)-offset; |
---|
463 | count++; col += Indwidth; |
---|
464 | } |
---|
465 | } |
---|
466 | free(ThisElement); |
---|
467 | |
---|
468 | /* Read array of values: */ |
---|
469 | |
---|
470 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
---|
471 | |
---|
472 | if ( Type[0] == 'C' ) Nentries = 2*Nnzero; |
---|
473 | else Nentries = Nnzero; |
---|
474 | |
---|
475 | ThisElement = (char *) malloc(Valwidth+1); |
---|
476 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
477 | *(ThisElement+Valwidth) = (char) NULL; |
---|
478 | count = 0; |
---|
479 | for (i=0;i<Valcrd;i++) |
---|
480 | { |
---|
481 | fgets(line, BUFSIZ, in_file); |
---|
482 | if ( sscanf(line,"%*s") < 0 ) |
---|
483 | IOHBTerminate("iohb.c: Null (or blank) line in value data region of HB file.\n"); |
---|
484 | if (Valflag == 'D') { |
---|
485 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
486 | /* *strchr(Valfmt,'D') = 'E'; */ |
---|
487 | } |
---|
488 | col = 0; |
---|
489 | for (ind = 0;ind<Valperline;ind++) |
---|
490 | { |
---|
491 | if (count == Nentries) break; |
---|
492 | strncpy(ThisElement,line+col,Valwidth); |
---|
493 | /*ThisElement = substr(line,col,Valwidth);*/ |
---|
494 | if ( Valflag != 'F' && strchr(ThisElement,'E') == NULL ) { |
---|
495 | /* insert a char prefix for exp */ |
---|
496 | last = strlen(ThisElement); |
---|
497 | for (j=last+1;j>=0;j--) { |
---|
498 | ThisElement[j] = ThisElement[j-1]; |
---|
499 | if ( ThisElement[j] == '+' || ThisElement[j] == '-' ) { |
---|
500 | ThisElement[j-1] = Valflag; |
---|
501 | break; |
---|
502 | } |
---|
503 | } |
---|
504 | } |
---|
505 | val[count] = atof(ThisElement); |
---|
506 | count++; col += Valwidth; |
---|
507 | } |
---|
508 | } |
---|
509 | free(ThisElement); |
---|
510 | } |
---|
511 | |
---|
512 | fclose(in_file); |
---|
513 | return 1; |
---|
514 | } |
---|
515 | |
---|
516 | int readHB_newmat_double(const char* filename, int* M, int* N, int* nonzeros, |
---|
517 | int** colptr, int** rowind, double** val) |
---|
518 | { |
---|
519 | int Nrhs; |
---|
520 | char *Type; |
---|
521 | |
---|
522 | readHB_info(filename, M, N, nonzeros, &Type, &Nrhs); |
---|
523 | |
---|
524 | *colptr = (int *)malloc((*N+1)*sizeof(int)); |
---|
525 | if ( *colptr == NULL ) IOHBTerminate("Insufficient memory for colptr.\n"); |
---|
526 | *rowind = (int *)malloc(*nonzeros*sizeof(int)); |
---|
527 | if ( *rowind == NULL ) IOHBTerminate("Insufficient memory for rowind.\n"); |
---|
528 | if ( Type[0] == 'C' ) { |
---|
529 | /* |
---|
530 | fprintf(stderr, "Warning: Reading complex data from HB file %s.\n",filename); |
---|
531 | fprintf(stderr, " Real and imaginary parts will be interlaced in val[].\n"); |
---|
532 | */ |
---|
533 | /* Malloc enough space for real AND imaginary parts of val[] */ |
---|
534 | *val = (double *)malloc(*nonzeros*sizeof(double)*2); |
---|
535 | if ( *val == NULL ) IOHBTerminate("Insufficient memory for val.\n"); |
---|
536 | } else { |
---|
537 | if ( Type[0] != 'P' ) { |
---|
538 | /* Malloc enough space for real array val[] */ |
---|
539 | *val = (double *)malloc(*nonzeros*sizeof(double)); |
---|
540 | if ( *val == NULL ) IOHBTerminate("Insufficient memory for val.\n"); |
---|
541 | } |
---|
542 | } /* No val[] space needed if pattern only */ |
---|
543 | return readHB_mat_double(filename, *colptr, *rowind, *val); |
---|
544 | |
---|
545 | } |
---|
546 | |
---|
547 | int readHB_aux_double(const char* filename, const char AuxType, double b[]) |
---|
548 | { |
---|
549 | /****************************************************************************/ |
---|
550 | /* This function opens and reads the specified file, placing auxillary */ |
---|
551 | /* vector(s) of the given type (if available) in b. */ |
---|
552 | /* Return value is the number of vectors successfully read. */ |
---|
553 | /* */ |
---|
554 | /* AuxType = 'F' full right-hand-side vector(s) */ |
---|
555 | /* AuxType = 'G' initial Guess vector(s) */ |
---|
556 | /* AuxType = 'X' eXact solution vector(s) */ |
---|
557 | /* */ |
---|
558 | /* ---------- */ |
---|
559 | /* **CAVEAT** */ |
---|
560 | /* ---------- */ |
---|
561 | /* Parsing real formats from Fortran is tricky, and this file reader */ |
---|
562 | /* does not claim to be foolproof. It has been tested for cases when */ |
---|
563 | /* the real values are printed consistently and evenly spaced on each */ |
---|
564 | /* line, with Fixed (F), and Exponential (E or D) formats. */ |
---|
565 | /* */ |
---|
566 | /* ** If the input file does not adhere to the H/B format, the ** */ |
---|
567 | /* ** results will be unpredictable. ** */ |
---|
568 | /* */ |
---|
569 | /****************************************************************************/ |
---|
570 | FILE *in_file; |
---|
571 | int i,j,n,maxcol,start,stride,col,last,linel; |
---|
572 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
---|
573 | int Nrow, Ncol, Nnzero, Nentries; |
---|
574 | int Nrhs, nvecs, rhsi; |
---|
575 | int Rhsperline, Rhswidth, Rhsprec; |
---|
576 | int Rhsflag; |
---|
577 | char *ThisElement; |
---|
578 | char Title[73], Key[9], Type[4], Rhstype[4]; |
---|
579 | char Ptrfmt[17], Indfmt[17], Valfmt[21], Rhsfmt[21]; |
---|
580 | char line[BUFSIZ]; |
---|
581 | |
---|
582 | if ((in_file = fopen( filename, "r")) == NULL) { |
---|
583 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
584 | return 0; |
---|
585 | } |
---|
586 | |
---|
587 | readHB_header(in_file, Title, Key, Type, &Nrow, &Ncol, &Nnzero, &Nrhs, |
---|
588 | Ptrfmt, Indfmt, Valfmt, Rhsfmt, |
---|
589 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
---|
590 | |
---|
591 | if (Nrhs <= 0) |
---|
592 | { |
---|
593 | fprintf(stderr, "Warn: Attempt to read auxillary vector(s) when none are present.\n"); |
---|
594 | return 0; |
---|
595 | } |
---|
596 | if (Rhstype[0] != 'F' ) |
---|
597 | { |
---|
598 | fprintf(stderr,"Warn: Attempt to read auxillary vector(s) which are not stored in Full form.\n"); |
---|
599 | fprintf(stderr," Rhs must be specified as full. \n"); |
---|
600 | return 0; |
---|
601 | } |
---|
602 | |
---|
603 | /* If reading complex data, allow for interleaved real and imaginary values. */ |
---|
604 | if ( Type[0] == 'C' ) { |
---|
605 | Nentries = 2*Nrow; |
---|
606 | } else { |
---|
607 | Nentries = Nrow; |
---|
608 | } |
---|
609 | |
---|
610 | nvecs = 1; |
---|
611 | |
---|
612 | if ( Rhstype[1] == 'G' ) nvecs++; |
---|
613 | if ( Rhstype[2] == 'X' ) nvecs++; |
---|
614 | |
---|
615 | if ( AuxType == 'G' && Rhstype[1] != 'G' ) { |
---|
616 | fprintf(stderr, "Warn: Attempt to read auxillary Guess vector(s) when none are present.\n"); |
---|
617 | return 0; |
---|
618 | } |
---|
619 | if ( AuxType == 'X' && Rhstype[2] != 'X' ) { |
---|
620 | fprintf(stderr, "Warn: Attempt to read auxillary eXact solution vector(s) when none are present.\n"); |
---|
621 | return 0; |
---|
622 | } |
---|
623 | |
---|
624 | ParseRfmt(Rhsfmt, &Rhsperline, &Rhswidth, &Rhsprec,&Rhsflag); |
---|
625 | maxcol = Rhsperline*Rhswidth; |
---|
626 | |
---|
627 | /* Lines to skip before starting to read RHS values... */ |
---|
628 | n = Ptrcrd + Indcrd + Valcrd; |
---|
629 | |
---|
630 | for (i = 0; i < n; i++) |
---|
631 | fgets(line, BUFSIZ, in_file); |
---|
632 | |
---|
633 | /* start - number of initial aux vector entries to skip */ |
---|
634 | /* to reach first vector requested */ |
---|
635 | /* stride - number of aux vector entries to skip between */ |
---|
636 | /* requested vectors */ |
---|
637 | if ( AuxType == 'F' ) start = 0; |
---|
638 | else if ( AuxType == 'G' ) start = Nentries; |
---|
639 | else start = (nvecs-1)*Nentries; |
---|
640 | stride = (nvecs-1)*Nentries; |
---|
641 | |
---|
642 | fgets(line, BUFSIZ, in_file); |
---|
643 | linel= strchr(line,'\n')-line; |
---|
644 | col = 0; |
---|
645 | /* Skip to initial offset */ |
---|
646 | |
---|
647 | for (i=0;i<start;i++) { |
---|
648 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
649 | fgets(line, BUFSIZ, in_file); |
---|
650 | linel= strchr(line,'\n')-line; |
---|
651 | col = 0; |
---|
652 | } |
---|
653 | col += Rhswidth; |
---|
654 | } |
---|
655 | if (Rhsflag == 'D') { |
---|
656 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
657 | } |
---|
658 | |
---|
659 | /* Read a vector of desired type, then skip to next */ |
---|
660 | /* repeating to fill Nrhs vectors */ |
---|
661 | |
---|
662 | ThisElement = (char *) malloc(Rhswidth+1); |
---|
663 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
664 | *(ThisElement+Rhswidth) = (char) NULL; |
---|
665 | for (rhsi=0;rhsi<Nrhs;rhsi++) { |
---|
666 | |
---|
667 | for (i=0;i<Nentries;i++) { |
---|
668 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
669 | fgets(line, BUFSIZ, in_file); |
---|
670 | linel= strchr(line,'\n')-line; |
---|
671 | if (Rhsflag == 'D') { |
---|
672 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
673 | } |
---|
674 | col = 0; |
---|
675 | } |
---|
676 | strncpy(ThisElement,line+col,Rhswidth); |
---|
677 | /*ThisElement = substr(line, col, Rhswidth);*/ |
---|
678 | if ( Rhsflag != 'F' && strchr(ThisElement,'E') == NULL ) { |
---|
679 | /* insert a char prefix for exp */ |
---|
680 | last = strlen(ThisElement); |
---|
681 | for (j=last+1;j>=0;j--) { |
---|
682 | ThisElement[j] = ThisElement[j-1]; |
---|
683 | if ( ThisElement[j] == '+' || ThisElement[j] == '-' ) { |
---|
684 | ThisElement[j-1] = Rhsflag; |
---|
685 | break; |
---|
686 | } |
---|
687 | } |
---|
688 | } |
---|
689 | b[i] = atof(ThisElement); |
---|
690 | col += Rhswidth; |
---|
691 | } |
---|
692 | |
---|
693 | /* Skip any interleaved Guess/eXact vectors */ |
---|
694 | |
---|
695 | for (i=0;i<stride;i++) { |
---|
696 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
697 | fgets(line, BUFSIZ, in_file); |
---|
698 | linel= strchr(line,'\n')-line; |
---|
699 | col = 0; |
---|
700 | } |
---|
701 | col += Rhswidth; |
---|
702 | } |
---|
703 | |
---|
704 | } |
---|
705 | free(ThisElement); |
---|
706 | |
---|
707 | |
---|
708 | fclose(in_file); |
---|
709 | return Nrhs; |
---|
710 | } |
---|
711 | |
---|
712 | int readHB_newaux_double(const char* filename, const char AuxType, double** b) |
---|
713 | { |
---|
714 | int Nrhs,M,N,nonzeros; |
---|
715 | char *Type; |
---|
716 | |
---|
717 | readHB_info(filename, &M, &N, &nonzeros, &Type, &Nrhs); |
---|
718 | if ( Nrhs <= 0 ) { |
---|
719 | fprintf(stderr,"Warn: Requested read of aux vector(s) when none are present.\n"); |
---|
720 | return 0; |
---|
721 | } else { |
---|
722 | if ( Type[0] == 'C' ) { |
---|
723 | fprintf(stderr, "Warning: Reading complex aux vector(s) from HB file %s.",filename); |
---|
724 | fprintf(stderr, " Real and imaginary parts will be interlaced in b[]."); |
---|
725 | *b = (double *)malloc(M*Nrhs*sizeof(double)*2); |
---|
726 | if ( *b == NULL ) IOHBTerminate("Insufficient memory for rhs.\n"); |
---|
727 | return readHB_aux_double(filename, AuxType, *b); |
---|
728 | } else { |
---|
729 | *b = (double *)malloc(M*Nrhs*sizeof(double)); |
---|
730 | if ( *b == NULL ) IOHBTerminate("Insufficient memory for rhs.\n"); |
---|
731 | return readHB_aux_double(filename, AuxType, *b); |
---|
732 | } |
---|
733 | } |
---|
734 | } |
---|
735 | |
---|
736 | int writeHB_mat_double(const char* filename, int M, int N, |
---|
737 | int nz, const int colptr[], const int rowind[], |
---|
738 | const double val[], int Nrhs, const double rhs[], |
---|
739 | const double guess[], const double exact[], |
---|
740 | const char* Title, const char* Key, const char* Type, |
---|
741 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
---|
742 | const char* Rhstype) |
---|
743 | { |
---|
744 | /****************************************************************************/ |
---|
745 | /* The writeHB function opens the named file and writes the specified */ |
---|
746 | /* matrix and optional right-hand-side(s) to that file in Harwell-Boeing */ |
---|
747 | /* format. */ |
---|
748 | /* */ |
---|
749 | /* For a description of the Harwell Boeing standard, see: */ |
---|
750 | /* Duff, et al., ACM TOMS Vol.15, No.1, March 1989 */ |
---|
751 | /* */ |
---|
752 | /****************************************************************************/ |
---|
753 | FILE *out_file; |
---|
754 | int i,j,entry,offset,acount,linemod; |
---|
755 | int totcrd, ptrcrd, indcrd, valcrd, rhscrd; |
---|
756 | int nvalentries, nrhsentries; |
---|
757 | int Ptrperline, Ptrwidth, Indperline, Indwidth; |
---|
758 | int Rhsperline, Rhswidth, Rhsprec; |
---|
759 | int Rhsflag; |
---|
760 | int Valperline, Valwidth, Valprec; |
---|
761 | int Valflag; /* Indicates 'E','D', or 'F' float format */ |
---|
762 | char pformat[16],iformat[16],vformat[19],rformat[19]; |
---|
763 | |
---|
764 | if ( Type[0] == 'C' ) { |
---|
765 | nvalentries = 2*nz; |
---|
766 | nrhsentries = 2*M; |
---|
767 | } else { |
---|
768 | nvalentries = nz; |
---|
769 | nrhsentries = M; |
---|
770 | } |
---|
771 | |
---|
772 | if ( filename != NULL ) { |
---|
773 | if ( (out_file = fopen( filename, "w")) == NULL ) { |
---|
774 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
775 | return 0; |
---|
776 | } |
---|
777 | } else out_file = stdout; |
---|
778 | |
---|
779 | if ( Ptrfmt == NULL ) Ptrfmt = "(8I10)"; |
---|
780 | ParseIfmt(Ptrfmt,&Ptrperline,&Ptrwidth); |
---|
781 | sprintf(pformat,"%%%dd",Ptrwidth); |
---|
782 | ptrcrd = (N+1)/Ptrperline; |
---|
783 | if ( (N+1)%Ptrperline != 0) ptrcrd++; |
---|
784 | |
---|
785 | if ( Indfmt == NULL ) Indfmt = Ptrfmt; |
---|
786 | ParseIfmt(Indfmt,&Indperline,&Indwidth); |
---|
787 | sprintf(iformat,"%%%dd",Indwidth); |
---|
788 | indcrd = nz/Indperline; |
---|
789 | if ( nz%Indperline != 0) indcrd++; |
---|
790 | |
---|
791 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
---|
792 | if ( Valfmt == NULL ) Valfmt = "(4E20.13)"; |
---|
793 | ParseRfmt(Valfmt,&Valperline,&Valwidth,&Valprec,&Valflag); |
---|
794 | if (Valflag == 'D') *strchr(Valfmt,'D') = 'E'; |
---|
795 | if (Valflag == 'F') |
---|
796 | sprintf(vformat,"%% %d.%df",Valwidth,Valprec); |
---|
797 | else |
---|
798 | sprintf(vformat,"%% %d.%dE",Valwidth,Valprec); |
---|
799 | valcrd = nvalentries/Valperline; |
---|
800 | if ( nvalentries%Valperline != 0) valcrd++; |
---|
801 | } else valcrd = 0; |
---|
802 | |
---|
803 | if ( Nrhs > 0 ) { |
---|
804 | if ( Rhsfmt == NULL ) Rhsfmt = Valfmt; |
---|
805 | ParseRfmt(Rhsfmt,&Rhsperline,&Rhswidth,&Rhsprec, &Rhsflag); |
---|
806 | if (Rhsflag == 'F') |
---|
807 | sprintf(rformat,"%% %d.%df",Rhswidth,Rhsprec); |
---|
808 | else |
---|
809 | sprintf(rformat,"%% %d.%dE",Rhswidth,Rhsprec); |
---|
810 | if (Rhsflag == 'D') *strchr(Rhsfmt,'D') = 'E'; |
---|
811 | rhscrd = nrhsentries/Rhsperline; |
---|
812 | if ( nrhsentries%Rhsperline != 0) rhscrd++; |
---|
813 | if ( Rhstype[1] == 'G' ) rhscrd+=rhscrd; |
---|
814 | if ( Rhstype[2] == 'X' ) rhscrd+=rhscrd; |
---|
815 | rhscrd*=Nrhs; |
---|
816 | } else rhscrd = 0; |
---|
817 | |
---|
818 | totcrd = 4+ptrcrd+indcrd+valcrd+rhscrd; |
---|
819 | |
---|
820 | |
---|
821 | /* Print header information: */ |
---|
822 | |
---|
823 | fprintf(out_file,"%-72s%-8s\n%14d%14d%14d%14d%14d\n",Title, Key, totcrd, |
---|
824 | ptrcrd, indcrd, valcrd, rhscrd); |
---|
825 | fprintf(out_file,"%3s%11s%14d%14d%14d\n",Type," ", M, N, nz); |
---|
826 | fprintf(out_file,"%-16s%-16s%-20s", Ptrfmt, Indfmt, Valfmt); |
---|
827 | if ( Nrhs != 0 ) { |
---|
828 | /* Print Rhsfmt on fourth line and */ |
---|
829 | /* optional fifth header line for auxillary vector information: */ |
---|
830 | fprintf(out_file,"%-20s\n%-14s%d\n",Rhsfmt,Rhstype,Nrhs); |
---|
831 | } else fprintf(out_file,"\n"); |
---|
832 | |
---|
833 | offset = 1-_SP_base; /* if base 0 storage is declared (via macro definition), */ |
---|
834 | /* then storage entries are offset by 1 */ |
---|
835 | |
---|
836 | /* Print column pointers: */ |
---|
837 | for (i=0;i<N+1;i++) |
---|
838 | { |
---|
839 | entry = colptr[i]+offset; |
---|
840 | fprintf(out_file,pformat,entry); |
---|
841 | if ( (i+1)%Ptrperline == 0 ) fprintf(out_file,"\n"); |
---|
842 | } |
---|
843 | |
---|
844 | if ( (N+1) % Ptrperline != 0 ) fprintf(out_file,"\n"); |
---|
845 | |
---|
846 | /* Print row indices: */ |
---|
847 | for (i=0;i<nz;i++) |
---|
848 | { |
---|
849 | entry = rowind[i]+offset; |
---|
850 | fprintf(out_file,iformat,entry); |
---|
851 | if ( (i+1)%Indperline == 0 ) fprintf(out_file,"\n"); |
---|
852 | } |
---|
853 | |
---|
854 | if ( nz % Indperline != 0 ) fprintf(out_file,"\n"); |
---|
855 | |
---|
856 | /* Print values: */ |
---|
857 | |
---|
858 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
---|
859 | |
---|
860 | for (i=0;i<nvalentries;i++) |
---|
861 | { |
---|
862 | fprintf(out_file,vformat,val[i]); |
---|
863 | if ( (i+1)%Valperline == 0 ) fprintf(out_file,"\n"); |
---|
864 | } |
---|
865 | |
---|
866 | if ( nvalentries % Valperline != 0 ) fprintf(out_file,"\n"); |
---|
867 | |
---|
868 | /* If available, print right hand sides, |
---|
869 | guess vectors and exact solution vectors: */ |
---|
870 | acount = 1; |
---|
871 | linemod = 0; |
---|
872 | if ( Nrhs > 0 ) { |
---|
873 | for (i=0;i<Nrhs;i++) |
---|
874 | { |
---|
875 | for ( j=0;j<nrhsentries;j++ ) { |
---|
876 | fprintf(out_file,rformat,rhs[j]); |
---|
877 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
---|
878 | } |
---|
879 | if ( acount%Rhsperline != linemod ) { |
---|
880 | fprintf(out_file,"\n"); |
---|
881 | linemod = (acount-1)%Rhsperline; |
---|
882 | } |
---|
883 | rhs += nrhsentries; |
---|
884 | if ( Rhstype[1] == 'G' ) { |
---|
885 | for ( j=0;j<nrhsentries;j++ ) { |
---|
886 | fprintf(out_file,rformat,guess[j]); |
---|
887 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
---|
888 | } |
---|
889 | if ( acount%Rhsperline != linemod ) { |
---|
890 | fprintf(out_file,"\n"); |
---|
891 | linemod = (acount-1)%Rhsperline; |
---|
892 | } |
---|
893 | guess += nrhsentries; |
---|
894 | } |
---|
895 | if ( Rhstype[2] == 'X' ) { |
---|
896 | for ( j=0;j<nrhsentries;j++ ) { |
---|
897 | fprintf(out_file,rformat,exact[j]); |
---|
898 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
---|
899 | } |
---|
900 | if ( acount%Rhsperline != linemod ) { |
---|
901 | fprintf(out_file,"\n"); |
---|
902 | linemod = (acount-1)%Rhsperline; |
---|
903 | } |
---|
904 | exact += nrhsentries; |
---|
905 | } |
---|
906 | } |
---|
907 | } |
---|
908 | |
---|
909 | } |
---|
910 | |
---|
911 | if ( fclose(out_file) != 0){ |
---|
912 | fprintf(stderr,"Error closing file in writeHB_mat_double().\n"); |
---|
913 | return 0; |
---|
914 | } else return 1; |
---|
915 | |
---|
916 | } |
---|
917 | |
---|
918 | int readHB_mat_char(const char* filename, int colptr[], int rowind[], |
---|
919 | char val[], char* Valfmt) |
---|
920 | { |
---|
921 | /****************************************************************************/ |
---|
922 | /* This function opens and reads the specified file, interpreting its */ |
---|
923 | /* contents as a sparse matrix stored in the Harwell/Boeing standard */ |
---|
924 | /* format and creating compressed column storage scheme vectors to hold */ |
---|
925 | /* the index and nonzero value information. */ |
---|
926 | /* */ |
---|
927 | /* ---------- */ |
---|
928 | /* **CAVEAT** */ |
---|
929 | /* ---------- */ |
---|
930 | /* Parsing real formats from Fortran is tricky, and this file reader */ |
---|
931 | /* does not claim to be foolproof. It has been tested for cases when */ |
---|
932 | /* the real values are printed consistently and evenly spaced on each */ |
---|
933 | /* line, with Fixed (F), and Exponential (E or D) formats. */ |
---|
934 | /* */ |
---|
935 | /* ** If the input file does not adhere to the H/B format, the ** */ |
---|
936 | /* ** results will be unpredictable. ** */ |
---|
937 | /* */ |
---|
938 | /****************************************************************************/ |
---|
939 | FILE *in_file; |
---|
940 | int i,j,ind,col,offset,count,last; |
---|
941 | int Nrow,Ncol,Nnzero,Nentries,Nrhs; |
---|
942 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
---|
943 | int Ptrperline, Ptrwidth, Indperline, Indwidth; |
---|
944 | int Valperline, Valwidth, Valprec; |
---|
945 | int Valflag; /* Indicates 'E','D', or 'F' float format */ |
---|
946 | char* ThisElement; |
---|
947 | char line[BUFSIZ]; |
---|
948 | char Title[73], Key[8], Type[4], Rhstype[4]; |
---|
949 | char Ptrfmt[17], Indfmt[17], Rhsfmt[21]; |
---|
950 | |
---|
951 | if ( (in_file = fopen( filename, "r")) == NULL ) { |
---|
952 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
953 | return 0; |
---|
954 | } |
---|
955 | |
---|
956 | readHB_header(in_file, Title, Key, Type, &Nrow, &Ncol, &Nnzero, &Nrhs, |
---|
957 | Ptrfmt, Indfmt, Valfmt, Rhsfmt, |
---|
958 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
---|
959 | |
---|
960 | /* Parse the array input formats from Line 3 of HB file */ |
---|
961 | ParseIfmt(Ptrfmt,&Ptrperline,&Ptrwidth); |
---|
962 | ParseIfmt(Indfmt,&Indperline,&Indwidth); |
---|
963 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
---|
964 | ParseRfmt(Valfmt,&Valperline,&Valwidth,&Valprec,&Valflag); |
---|
965 | if (Valflag == 'D') { |
---|
966 | *strchr(Valfmt,'D') = 'E'; |
---|
967 | } |
---|
968 | } |
---|
969 | |
---|
970 | /* Read column pointer array: */ |
---|
971 | |
---|
972 | offset = 1-_SP_base; /* if base 0 storage is declared (via macro definition), */ |
---|
973 | /* then storage entries are offset by 1 */ |
---|
974 | |
---|
975 | ThisElement = (char *) malloc(Ptrwidth+1); |
---|
976 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
977 | *(ThisElement+Ptrwidth) = (char) NULL; |
---|
978 | count=0; |
---|
979 | for (i=0;i<Ptrcrd;i++) |
---|
980 | { |
---|
981 | fgets(line, BUFSIZ, in_file); |
---|
982 | if ( sscanf(line,"%*s") < 0 ) |
---|
983 | IOHBTerminate("iohb.c: Null (or blank) line in pointer data region of HB file.\n"); |
---|
984 | col = 0; |
---|
985 | for (ind = 0;ind<Ptrperline;ind++) |
---|
986 | { |
---|
987 | if (count > Ncol) break; |
---|
988 | strncpy(ThisElement,line+col,Ptrwidth); |
---|
989 | /*ThisElement = substr(line,col,Ptrwidth);*/ |
---|
990 | colptr[count] = atoi(ThisElement)-offset; |
---|
991 | count++; col += Ptrwidth; |
---|
992 | } |
---|
993 | } |
---|
994 | free(ThisElement); |
---|
995 | |
---|
996 | /* Read row index array: */ |
---|
997 | |
---|
998 | ThisElement = (char *) malloc(Indwidth+1); |
---|
999 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
1000 | *(ThisElement+Indwidth) = (char) NULL; |
---|
1001 | count = 0; |
---|
1002 | for (i=0;i<Indcrd;i++) |
---|
1003 | { |
---|
1004 | fgets(line, BUFSIZ, in_file); |
---|
1005 | if ( sscanf(line,"%*s") < 0 ) |
---|
1006 | IOHBTerminate("iohb.c: Null (or blank) line in index data region of HB file.\n"); |
---|
1007 | col = 0; |
---|
1008 | for (ind = 0;ind<Indperline;ind++) |
---|
1009 | { |
---|
1010 | if (count == Nnzero) break; |
---|
1011 | strncpy(ThisElement,line+col,Indwidth); |
---|
1012 | /*ThisElement = substr(line,col,Indwidth);*/ |
---|
1013 | rowind[count] = atoi(ThisElement)-offset; |
---|
1014 | count++; col += Indwidth; |
---|
1015 | } |
---|
1016 | } |
---|
1017 | free(ThisElement); |
---|
1018 | |
---|
1019 | /* Read array of values: AS CHARACTERS*/ |
---|
1020 | |
---|
1021 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
---|
1022 | |
---|
1023 | if ( Type[0] == 'C' ) Nentries = 2*Nnzero; |
---|
1024 | else Nentries = Nnzero; |
---|
1025 | |
---|
1026 | ThisElement = (char *) malloc(Valwidth+1); |
---|
1027 | if ( ThisElement == NULL ) IOHBTerminate("Insufficient memory for ThisElement."); |
---|
1028 | *(ThisElement+Valwidth) = (char) NULL; |
---|
1029 | count = 0; |
---|
1030 | for (i=0;i<Valcrd;i++) |
---|
1031 | { |
---|
1032 | fgets(line, BUFSIZ, in_file); |
---|
1033 | if ( sscanf(line,"%*s") < 0 ) |
---|
1034 | IOHBTerminate("iohb.c: Null (or blank) line in value data region of HB file.\n"); |
---|
1035 | if (Valflag == 'D') { |
---|
1036 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
1037 | } |
---|
1038 | col = 0; |
---|
1039 | for (ind = 0;ind<Valperline;ind++) |
---|
1040 | { |
---|
1041 | if (count == Nentries) break; |
---|
1042 | ThisElement = &val[count*Valwidth]; |
---|
1043 | strncpy(ThisElement,line+col,Valwidth); |
---|
1044 | /*strncpy(ThisElement,substr(line,col,Valwidth),Valwidth);*/ |
---|
1045 | if ( Valflag != 'F' && strchr(ThisElement,'E') == NULL ) { |
---|
1046 | /* insert a char prefix for exp */ |
---|
1047 | last = strlen(ThisElement); |
---|
1048 | for (j=last+1;j>=0;j--) { |
---|
1049 | ThisElement[j] = ThisElement[j-1]; |
---|
1050 | if ( ThisElement[j] == '+' || ThisElement[j] == '-' ) { |
---|
1051 | ThisElement[j-1] = Valflag; |
---|
1052 | break; |
---|
1053 | } |
---|
1054 | } |
---|
1055 | } |
---|
1056 | count++; col += Valwidth; |
---|
1057 | } |
---|
1058 | } |
---|
1059 | } |
---|
1060 | |
---|
1061 | return 1; |
---|
1062 | } |
---|
1063 | |
---|
1064 | int readHB_newmat_char(const char* filename, int* M, int* N, int* nonzeros, int** colptr, |
---|
1065 | int** rowind, char** val, char** Valfmt) |
---|
1066 | { |
---|
1067 | FILE *in_file; |
---|
1068 | int Nrhs; |
---|
1069 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
---|
1070 | int Valperline, Valwidth, Valprec; |
---|
1071 | int Valflag; /* Indicates 'E','D', or 'F' float format */ |
---|
1072 | char Title[73], Key[9], Type[4], Rhstype[4]; |
---|
1073 | char Ptrfmt[17], Indfmt[17], Rhsfmt[21]; |
---|
1074 | |
---|
1075 | if ((in_file = fopen( filename, "r")) == NULL) { |
---|
1076 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
1077 | return 0; |
---|
1078 | } |
---|
1079 | |
---|
1080 | *Valfmt = (char *)malloc(21*sizeof(char)); |
---|
1081 | if ( *Valfmt == NULL ) IOHBTerminate("Insufficient memory for Valfmt."); |
---|
1082 | readHB_header(in_file, Title, Key, Type, M, N, nonzeros, &Nrhs, |
---|
1083 | Ptrfmt, Indfmt, (*Valfmt), Rhsfmt, |
---|
1084 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
---|
1085 | fclose(in_file); |
---|
1086 | ParseRfmt(*Valfmt,&Valperline,&Valwidth,&Valprec,&Valflag); |
---|
1087 | |
---|
1088 | *colptr = (int *)malloc((*N+1)*sizeof(int)); |
---|
1089 | if ( *colptr == NULL ) IOHBTerminate("Insufficient memory for colptr.\n"); |
---|
1090 | *rowind = (int *)malloc(*nonzeros*sizeof(int)); |
---|
1091 | if ( *rowind == NULL ) IOHBTerminate("Insufficient memory for rowind.\n"); |
---|
1092 | if ( Type[0] == 'C' ) { |
---|
1093 | /* |
---|
1094 | fprintf(stderr, "Warning: Reading complex data from HB file %s.\n",filename); |
---|
1095 | fprintf(stderr, " Real and imaginary parts will be interlaced in val[].\n"); |
---|
1096 | */ |
---|
1097 | /* Malloc enough space for real AND imaginary parts of val[] */ |
---|
1098 | *val = (char *)malloc(*nonzeros*Valwidth*sizeof(char)*2); |
---|
1099 | if ( *val == NULL ) IOHBTerminate("Insufficient memory for val.\n"); |
---|
1100 | } else { |
---|
1101 | if ( Type[0] != 'P' ) { |
---|
1102 | /* Malloc enough space for real array val[] */ |
---|
1103 | *val = (char *)malloc(*nonzeros*Valwidth*sizeof(char)); |
---|
1104 | if ( *val == NULL ) IOHBTerminate("Insufficient memory for val.\n"); |
---|
1105 | } |
---|
1106 | } /* No val[] space needed if pattern only */ |
---|
1107 | return readHB_mat_char(filename, *colptr, *rowind, *val, *Valfmt); |
---|
1108 | |
---|
1109 | } |
---|
1110 | |
---|
1111 | int readHB_aux_char(const char* filename, const char AuxType, char b[]) |
---|
1112 | { |
---|
1113 | /****************************************************************************/ |
---|
1114 | /* This function opens and reads the specified file, placing auxilary */ |
---|
1115 | /* vector(s) of the given type (if available) in b : */ |
---|
1116 | /* Return value is the number of vectors successfully read. */ |
---|
1117 | /* */ |
---|
1118 | /* AuxType = 'F' full right-hand-side vector(s) */ |
---|
1119 | /* AuxType = 'G' initial Guess vector(s) */ |
---|
1120 | /* AuxType = 'X' eXact solution vector(s) */ |
---|
1121 | /* */ |
---|
1122 | /* ---------- */ |
---|
1123 | /* **CAVEAT** */ |
---|
1124 | /* ---------- */ |
---|
1125 | /* Parsing real formats from Fortran is tricky, and this file reader */ |
---|
1126 | /* does not claim to be foolproof. It has been tested for cases when */ |
---|
1127 | /* the real values are printed consistently and evenly spaced on each */ |
---|
1128 | /* line, with Fixed (F), and Exponential (E or D) formats. */ |
---|
1129 | /* */ |
---|
1130 | /* ** If the input file does not adhere to the H/B format, the ** */ |
---|
1131 | /* ** results will be unpredictable. ** */ |
---|
1132 | /* */ |
---|
1133 | /****************************************************************************/ |
---|
1134 | FILE *in_file; |
---|
1135 | int i,j,n,maxcol,start,stride,col,last,linel,nvecs,rhsi; |
---|
1136 | int Nrow, Ncol, Nnzero, Nentries,Nrhs; |
---|
1137 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
---|
1138 | int Rhsperline, Rhswidth, Rhsprec; |
---|
1139 | int Rhsflag; |
---|
1140 | char Title[73], Key[9], Type[4], Rhstype[4]; |
---|
1141 | char Ptrfmt[17], Indfmt[17], Valfmt[21], Rhsfmt[21]; |
---|
1142 | char line[BUFSIZ]; |
---|
1143 | char *ThisElement; |
---|
1144 | |
---|
1145 | if ((in_file = fopen( filename, "r")) == NULL) { |
---|
1146 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
1147 | return 0; |
---|
1148 | } |
---|
1149 | |
---|
1150 | readHB_header(in_file, Title, Key, Type, &Nrow, &Ncol, &Nnzero, &Nrhs, |
---|
1151 | Ptrfmt, Indfmt, Valfmt, Rhsfmt, |
---|
1152 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
---|
1153 | |
---|
1154 | if (Nrhs <= 0) |
---|
1155 | { |
---|
1156 | fprintf(stderr, "Warn: Attempt to read auxillary vector(s) when none are present.\n"); |
---|
1157 | return 0; |
---|
1158 | } |
---|
1159 | if (Rhstype[0] != 'F' ) |
---|
1160 | { |
---|
1161 | fprintf(stderr,"Warn: Attempt to read auxillary vector(s) which are not stored in Full form.\n"); |
---|
1162 | fprintf(stderr," Rhs must be specified as full. \n"); |
---|
1163 | return 0; |
---|
1164 | } |
---|
1165 | |
---|
1166 | /* If reading complex data, allow for interleaved real and imaginary values. */ |
---|
1167 | if ( Type[0] == 'C' ) { |
---|
1168 | Nentries = 2*Nrow; |
---|
1169 | } else { |
---|
1170 | Nentries = Nrow; |
---|
1171 | } |
---|
1172 | |
---|
1173 | nvecs = 1; |
---|
1174 | |
---|
1175 | if ( Rhstype[1] == 'G' ) nvecs++; |
---|
1176 | if ( Rhstype[2] == 'X' ) nvecs++; |
---|
1177 | |
---|
1178 | if ( AuxType == 'G' && Rhstype[1] != 'G' ) { |
---|
1179 | fprintf(stderr, "Warn: Attempt to read auxillary Guess vector(s) when none are present.\n"); |
---|
1180 | return 0; |
---|
1181 | } |
---|
1182 | if ( AuxType == 'X' && Rhstype[2] != 'X' ) { |
---|
1183 | fprintf(stderr, "Warn: Attempt to read auxillary eXact solution vector(s) when none are present.\n"); |
---|
1184 | return 0; |
---|
1185 | } |
---|
1186 | |
---|
1187 | ParseRfmt(Rhsfmt, &Rhsperline, &Rhswidth, &Rhsprec,&Rhsflag); |
---|
1188 | maxcol = Rhsperline*Rhswidth; |
---|
1189 | |
---|
1190 | /* Lines to skip before starting to read RHS values... */ |
---|
1191 | n = Ptrcrd + Indcrd + Valcrd; |
---|
1192 | |
---|
1193 | for (i = 0; i < n; i++) |
---|
1194 | fgets(line, BUFSIZ, in_file); |
---|
1195 | |
---|
1196 | /* start - number of initial aux vector entries to skip */ |
---|
1197 | /* to reach first vector requested */ |
---|
1198 | /* stride - number of aux vector entries to skip between */ |
---|
1199 | /* requested vectors */ |
---|
1200 | if ( AuxType == 'F' ) start = 0; |
---|
1201 | else if ( AuxType == 'G' ) start = Nentries; |
---|
1202 | else start = (nvecs-1)*Nentries; |
---|
1203 | stride = (nvecs-1)*Nentries; |
---|
1204 | |
---|
1205 | fgets(line, BUFSIZ, in_file); |
---|
1206 | linel= strchr(line,'\n')-line; |
---|
1207 | if ( sscanf(line,"%*s") < 0 ) |
---|
1208 | IOHBTerminate("iohb.c: Null (or blank) line in auxillary vector data region of HB file.\n"); |
---|
1209 | col = 0; |
---|
1210 | /* Skip to initial offset */ |
---|
1211 | |
---|
1212 | for (i=0;i<start;i++) { |
---|
1213 | col += Rhswidth; |
---|
1214 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
1215 | fgets(line, BUFSIZ, in_file); |
---|
1216 | linel= strchr(line,'\n')-line; |
---|
1217 | if ( sscanf(line,"%*s") < 0 ) |
---|
1218 | IOHBTerminate("iohb.c: Null (or blank) line in auxillary vector data region of HB file.\n"); |
---|
1219 | col = 0; |
---|
1220 | } |
---|
1221 | } |
---|
1222 | |
---|
1223 | if (Rhsflag == 'D') { |
---|
1224 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
1225 | } |
---|
1226 | /* Read a vector of desired type, then skip to next */ |
---|
1227 | /* repeating to fill Nrhs vectors */ |
---|
1228 | |
---|
1229 | for (rhsi=0;rhsi<Nrhs;rhsi++) { |
---|
1230 | |
---|
1231 | for (i=0;i<Nentries;i++) { |
---|
1232 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
1233 | fgets(line, BUFSIZ, in_file); |
---|
1234 | linel= strchr(line,'\n')-line; |
---|
1235 | if ( sscanf(line,"%*s") < 0 ) |
---|
1236 | IOHBTerminate("iohb.c: Null (or blank) line in auxillary vector data region of HB file.\n"); |
---|
1237 | if (Rhsflag == 'D') { |
---|
1238 | while( strchr(line,'D') ) *strchr(line,'D') = 'E'; |
---|
1239 | } |
---|
1240 | col = 0; |
---|
1241 | } |
---|
1242 | ThisElement = &b[i*Rhswidth]; |
---|
1243 | strncpy(ThisElement,line+col,Rhswidth); |
---|
1244 | if ( Rhsflag != 'F' && strchr(ThisElement,'E') == NULL ) { |
---|
1245 | /* insert a char prefix for exp */ |
---|
1246 | last = strlen(ThisElement); |
---|
1247 | for (j=last+1;j>=0;j--) { |
---|
1248 | ThisElement[j] = ThisElement[j-1]; |
---|
1249 | if ( ThisElement[j] == '+' || ThisElement[j] == '-' ) { |
---|
1250 | ThisElement[j-1] = Rhsflag; |
---|
1251 | break; |
---|
1252 | } |
---|
1253 | } |
---|
1254 | } |
---|
1255 | col += Rhswidth; |
---|
1256 | } |
---|
1257 | b+=Nentries*Rhswidth; |
---|
1258 | |
---|
1259 | /* Skip any interleaved Guess/eXact vectors */ |
---|
1260 | |
---|
1261 | for (i=0;i<stride;i++) { |
---|
1262 | col += Rhswidth; |
---|
1263 | if ( col >= ( maxcol<linel?maxcol:linel ) ) { |
---|
1264 | fgets(line, BUFSIZ, in_file); |
---|
1265 | linel= strchr(line,'\n')-line; |
---|
1266 | if ( sscanf(line,"%*s") < 0 ) |
---|
1267 | IOHBTerminate("iohb.c: Null (or blank) line in auxillary vector data region of HB file.\n"); |
---|
1268 | col = 0; |
---|
1269 | } |
---|
1270 | } |
---|
1271 | |
---|
1272 | } |
---|
1273 | |
---|
1274 | |
---|
1275 | fclose(in_file); |
---|
1276 | return Nrhs; |
---|
1277 | } |
---|
1278 | |
---|
1279 | int readHB_newaux_char(const char* filename, const char AuxType, char** b, char** Rhsfmt) |
---|
1280 | { |
---|
1281 | FILE *in_file; |
---|
1282 | int Ptrcrd, Indcrd, Valcrd, Rhscrd; |
---|
1283 | int Nrow,Ncol,Nnzero,Nrhs; |
---|
1284 | int Rhsperline, Rhswidth, Rhsprec; |
---|
1285 | int Rhsflag; |
---|
1286 | char Title[73], Key[9], Type[4], Rhstype[4]; |
---|
1287 | char Ptrfmt[17], Indfmt[17], Valfmt[21]; |
---|
1288 | |
---|
1289 | if ((in_file = fopen( filename, "r")) == NULL) { |
---|
1290 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
---|
1291 | return 0; |
---|
1292 | } |
---|
1293 | |
---|
1294 | *Rhsfmt = (char *)malloc(21*sizeof(char)); |
---|
1295 | if ( *Rhsfmt == NULL ) IOHBTerminate("Insufficient memory for Rhsfmt."); |
---|
1296 | readHB_header(in_file, Title, Key, Type, &Nrow, &Ncol, &Nnzero, &Nrhs, |
---|
1297 | Ptrfmt, Indfmt, Valfmt, (*Rhsfmt), |
---|
1298 | &Ptrcrd, &Indcrd, &Valcrd, &Rhscrd, Rhstype); |
---|
1299 | fclose(in_file); |
---|
1300 | if ( Nrhs == 0 ) { |
---|
1301 | fprintf(stderr,"Warn: Requested read of aux vector(s) when none are present.\n"); |
---|
1302 | return 0; |
---|
1303 | } else { |
---|
1304 | ParseRfmt(*Rhsfmt,&Rhsperline,&Rhswidth,&Rhsprec,&Rhsflag); |
---|
1305 | if ( Type[0] == 'C' ) { |
---|
1306 | fprintf(stderr, "Warning: Reading complex aux vector(s) from HB file %s.",filename); |
---|
1307 | fprintf(stderr, " Real and imaginary parts will be interlaced in b[]."); |
---|
1308 | *b = (char *)malloc(Nrow*Nrhs*Rhswidth*sizeof(char)*2); |
---|
1309 | if ( *b == NULL ) IOHBTerminate("Insufficient memory for rhs.\n"); |
---|
1310 | return readHB_aux_char(filename, AuxType, *b); |
---|
1311 | } else { |
---|
1312 | *b = (char *)malloc(Nrow*Nrhs*Rhswidth*sizeof(char)); |
---|
1313 | if ( *b == NULL ) IOHBTerminate("Insufficient memory for rhs.\n"); |
---|
1314 | return readHB_aux_char(filename, AuxType, *b); |
---|
1315 | } |
---|
1316 | } |
---|
1317 | } |
---|
1318 | |
---|
1319 | int writeHB_mat_char(const char* filename, int M, int N, |
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1320 | int nz, const int colptr[], const int rowind[], |
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1321 | const char val[], int Nrhs, const char rhs[], |
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1322 | const char guess[], const char exact[], |
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1323 | const char* Title, const char* Key, const char* Type, |
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1324 | char* Ptrfmt, char* Indfmt, char* Valfmt, char* Rhsfmt, |
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1325 | const char* Rhstype) |
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1326 | { |
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1327 | /****************************************************************************/ |
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1328 | /* The writeHB function opens the named file and writes the specified */ |
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1329 | /* matrix and optional right-hand-side(s) to that file in Harwell-Boeing */ |
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1330 | /* format. */ |
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1331 | /* */ |
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1332 | /* For a description of the Harwell Boeing standard, see: */ |
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1333 | /* Duff, et al., ACM TOMS Vol.15, No.1, March 1989 */ |
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1334 | /* */ |
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1335 | /****************************************************************************/ |
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1336 | FILE *out_file; |
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1337 | int i,j,acount,linemod,entry,offset; |
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1338 | int totcrd, ptrcrd, indcrd, valcrd, rhscrd; |
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1339 | int nvalentries, nrhsentries; |
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1340 | int Ptrperline, Ptrwidth, Indperline, Indwidth; |
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1341 | int Rhsperline, Rhswidth, Rhsprec; |
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1342 | int Rhsflag; |
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1343 | int Valperline, Valwidth, Valprec; |
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1344 | int Valflag; /* Indicates 'E','D', or 'F' float format */ |
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1345 | char pformat[16],iformat[16],vformat[19],rformat[19]; |
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1346 | |
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1347 | if ( Type[0] == 'C' ) { |
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1348 | nvalentries = 2*nz; |
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1349 | nrhsentries = 2*M; |
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1350 | } else { |
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1351 | nvalentries = nz; |
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1352 | nrhsentries = M; |
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1353 | } |
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1354 | |
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1355 | if ( filename != NULL ) { |
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1356 | if ( (out_file = fopen( filename, "w")) == NULL ) { |
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1357 | fprintf(stderr,"Error: Cannot open file: %s\n",filename); |
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1358 | return 0; |
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1359 | } |
---|
1360 | } else out_file = stdout; |
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1361 | |
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1362 | if ( Ptrfmt == NULL ) Ptrfmt = "(8I10)"; |
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1363 | ParseIfmt(Ptrfmt,&Ptrperline,&Ptrwidth); |
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1364 | sprintf(pformat,"%%%dd",Ptrwidth); |
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1365 | |
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1366 | if ( Indfmt == NULL ) Indfmt = Ptrfmt; |
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1367 | ParseIfmt(Indfmt,&Indperline,&Indwidth); |
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1368 | sprintf(iformat,"%%%dd",Indwidth); |
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1369 | |
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1370 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
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1371 | if ( Valfmt == NULL ) Valfmt = "(4E20.13)"; |
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1372 | ParseRfmt(Valfmt,&Valperline,&Valwidth,&Valprec,&Valflag); |
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1373 | sprintf(vformat,"%%%ds",Valwidth); |
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1374 | } |
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1375 | |
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1376 | ptrcrd = (N+1)/Ptrperline; |
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1377 | if ( (N+1)%Ptrperline != 0) ptrcrd++; |
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1378 | |
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1379 | indcrd = nz/Indperline; |
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1380 | if ( nz%Indperline != 0) indcrd++; |
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1381 | |
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1382 | valcrd = nvalentries/Valperline; |
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1383 | if ( nvalentries%Valperline != 0) valcrd++; |
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1384 | |
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1385 | if ( Nrhs > 0 ) { |
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1386 | if ( Rhsfmt == NULL ) Rhsfmt = Valfmt; |
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1387 | ParseRfmt(Rhsfmt,&Rhsperline,&Rhswidth,&Rhsprec, &Rhsflag); |
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1388 | sprintf(rformat,"%%%ds",Rhswidth); |
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1389 | rhscrd = nrhsentries/Rhsperline; |
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1390 | if ( nrhsentries%Rhsperline != 0) rhscrd++; |
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1391 | if ( Rhstype[1] == 'G' ) rhscrd+=rhscrd; |
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1392 | if ( Rhstype[2] == 'X' ) rhscrd+=rhscrd; |
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1393 | rhscrd*=Nrhs; |
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1394 | } else rhscrd = 0; |
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1395 | |
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1396 | totcrd = 4+ptrcrd+indcrd+valcrd+rhscrd; |
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1397 | |
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1398 | |
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1399 | /* Print header information: */ |
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1400 | |
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1401 | fprintf(out_file,"%-72s%-8s\n%14d%14d%14d%14d%14d\n",Title, Key, totcrd, |
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1402 | ptrcrd, indcrd, valcrd, rhscrd); |
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1403 | fprintf(out_file,"%3s%11s%14d%14d%14d\n",Type," ", M, N, nz); |
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1404 | fprintf(out_file,"%-16s%-16s%-20s", Ptrfmt, Indfmt, Valfmt); |
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1405 | if ( Nrhs != 0 ) { |
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1406 | /* Print Rhsfmt on fourth line and */ |
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1407 | /* optional fifth header line for auxillary vector information: */ |
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1408 | fprintf(out_file,"%-20s\n%-14s%d\n",Rhsfmt,Rhstype,Nrhs); |
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1409 | } else fprintf(out_file,"\n"); |
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1410 | |
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1411 | offset = 1-_SP_base; /* if base 0 storage is declared (via macro definition), */ |
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1412 | /* then storage entries are offset by 1 */ |
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1413 | |
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1414 | /* Print column pointers: */ |
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1415 | for (i=0;i<N+1;i++) |
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1416 | { |
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1417 | entry = colptr[i]+offset; |
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1418 | fprintf(out_file,pformat,entry); |
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1419 | if ( (i+1)%Ptrperline == 0 ) fprintf(out_file,"\n"); |
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1420 | } |
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1421 | |
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1422 | if ( (N+1) % Ptrperline != 0 ) fprintf(out_file,"\n"); |
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1423 | |
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1424 | /* Print row indices: */ |
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1425 | for (i=0;i<nz;i++) |
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1426 | { |
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1427 | entry = rowind[i]+offset; |
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1428 | fprintf(out_file,iformat,entry); |
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1429 | if ( (i+1)%Indperline == 0 ) fprintf(out_file,"\n"); |
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1430 | } |
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1431 | |
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1432 | if ( nz % Indperline != 0 ) fprintf(out_file,"\n"); |
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1433 | |
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1434 | /* Print values: */ |
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1435 | |
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1436 | if ( Type[0] != 'P' ) { /* Skip if pattern only */ |
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1437 | for (i=0;i<nvalentries;i++) |
---|
1438 | { |
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1439 | fprintf(out_file,vformat,val+i*Valwidth); |
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1440 | if ( (i+1)%Valperline == 0 ) fprintf(out_file,"\n"); |
---|
1441 | } |
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1442 | |
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1443 | if ( nvalentries % Valperline != 0 ) fprintf(out_file,"\n"); |
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1444 | |
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1445 | /* Print right hand sides: */ |
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1446 | acount = 1; |
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1447 | linemod=0; |
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1448 | if ( Nrhs > 0 ) { |
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1449 | for (j=0;j<Nrhs;j++) { |
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1450 | for (i=0;i<nrhsentries;i++) |
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1451 | { |
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1452 | fprintf(out_file,rformat,rhs+i*Rhswidth); |
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1453 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
---|
1454 | } |
---|
1455 | if ( acount%Rhsperline != linemod ) { |
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1456 | fprintf(out_file,"\n"); |
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1457 | linemod = (acount-1)%Rhsperline; |
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1458 | } |
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1459 | if ( Rhstype[1] == 'G' ) { |
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1460 | for (i=0;i<nrhsentries;i++) |
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1461 | { |
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1462 | fprintf(out_file,rformat,guess+i*Rhswidth); |
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1463 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
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1464 | } |
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1465 | if ( acount%Rhsperline != linemod ) { |
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1466 | fprintf(out_file,"\n"); |
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1467 | linemod = (acount-1)%Rhsperline; |
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1468 | } |
---|
1469 | } |
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1470 | if ( Rhstype[2] == 'X' ) { |
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1471 | for (i=0;i<nrhsentries;i++) |
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1472 | { |
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1473 | fprintf(out_file,rformat,exact+i*Rhswidth); |
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1474 | if ( acount++%Rhsperline == linemod ) fprintf(out_file,"\n"); |
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1475 | } |
---|
1476 | if ( acount%Rhsperline != linemod ) { |
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1477 | fprintf(out_file,"\n"); |
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1478 | linemod = (acount-1)%Rhsperline; |
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1479 | } |
---|
1480 | } |
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1481 | } |
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1482 | } |
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1483 | |
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1484 | } |
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1485 | |
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1486 | if ( fclose(out_file) != 0){ |
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1487 | fprintf(stderr,"Error closing file in writeHB_mat_char().\n"); |
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1488 | return 0; |
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1489 | } else return 1; |
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1490 | |
---|
1491 | } |
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1492 | |
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1493 | int ParseIfmt(char* fmt, int* perline, int* width) |
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1494 | { |
---|
1495 | /*************************************************/ |
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1496 | /* Parse an *integer* format field to determine */ |
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1497 | /* width and number of elements per line. */ |
---|
1498 | /*************************************************/ |
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1499 | char *tmp; |
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1500 | if (fmt == NULL ) { |
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1501 | *perline = 0; *width = 0; return 0; |
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1502 | } |
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1503 | upcase(fmt); |
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1504 | tmp = strchr(fmt,'('); |
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1505 | tmp = substr(fmt,tmp - fmt + 1, strchr(fmt,'I') - tmp - 1); |
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1506 | *perline = atoi(tmp); |
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1507 | tmp = strchr(fmt,'I'); |
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1508 | tmp = substr(fmt,tmp - fmt + 1, strchr(fmt,')') - tmp - 1); |
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1509 | return *width = atoi(tmp); |
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1510 | } |
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1511 | |
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1512 | int ParseRfmt(char* fmt, int* perline, int* width, int* prec, int* flag) |
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1513 | { |
---|
1514 | /*************************************************/ |
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1515 | /* Parse a *real* format field to determine */ |
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1516 | /* width and number of elements per line. */ |
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1517 | /* Also sets flag indicating 'E' 'F' 'P' or 'D' */ |
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1518 | /* format. */ |
---|
1519 | /*************************************************/ |
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1520 | char* tmp; |
---|
1521 | char* tmp2; |
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1522 | char* tmp3; |
---|
1523 | int len; |
---|
1524 | |
---|
1525 | if (fmt == NULL ) { |
---|
1526 | *perline = 0; |
---|
1527 | *width = 0; |
---|
1528 | flag = NULL; |
---|
1529 | return 0; |
---|
1530 | } |
---|
1531 | |
---|
1532 | upcase(fmt); |
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1533 | if (strchr(fmt,'(') != NULL) fmt = strchr(fmt,'('); |
---|
1534 | if (strchr(fmt,')') != NULL) { |
---|
1535 | tmp2 = strchr(fmt,')'); |
---|
1536 | while ( strchr(tmp2+1,')') != NULL ) { |
---|
1537 | tmp2 = strchr(tmp2+1,')'); |
---|
1538 | } |
---|
1539 | *(tmp2+1) = (int) NULL; |
---|
1540 | } |
---|
1541 | if (strchr(fmt,'P') != NULL) /* Remove any scaling factor, which */ |
---|
1542 | { /* affects output only, not input */ |
---|
1543 | if (strchr(fmt,'(') != NULL) { |
---|
1544 | tmp = strchr(fmt,'P'); |
---|
1545 | if ( *(++tmp) == ',' ) tmp++; |
---|
1546 | tmp3 = strchr(fmt,'(')+1; |
---|
1547 | len = tmp-tmp3; |
---|
1548 | tmp2 = tmp3; |
---|
1549 | while ( *(tmp2+len) != (int) NULL ) { |
---|
1550 | *tmp2=*(tmp2+len); |
---|
1551 | tmp2++; |
---|
1552 | } |
---|
1553 | *(strchr(fmt,')')+1) = (int) NULL; |
---|
1554 | } |
---|
1555 | } |
---|
1556 | if (strchr(fmt,'E') != NULL) { |
---|
1557 | *flag = 'E'; |
---|
1558 | } else if (strchr(fmt,'D') != NULL) { |
---|
1559 | *flag = 'D'; |
---|
1560 | } else if (strchr(fmt,'F') != NULL) { |
---|
1561 | *flag = 'F'; |
---|
1562 | } else { |
---|
1563 | fprintf(stderr,"Real format %s in H/B file not supported.\n",fmt); |
---|
1564 | return 0; |
---|
1565 | } |
---|
1566 | tmp = strchr(fmt,'('); |
---|
1567 | tmp = substr(fmt,tmp - fmt + 1, strchr(fmt,*flag) - tmp - 1); |
---|
1568 | *perline = atoi(tmp); |
---|
1569 | tmp = strchr(fmt,*flag); |
---|
1570 | if ( strchr(fmt,'.') ) { |
---|
1571 | *prec = atoi( substr( fmt, strchr(fmt,'.') - fmt + 1, strchr(fmt,')') - strchr(fmt,'.')-1) ); |
---|
1572 | tmp = substr(fmt,tmp - fmt + 1, strchr(fmt,'.') - tmp - 1); |
---|
1573 | } else { |
---|
1574 | tmp = substr(fmt,tmp - fmt + 1, strchr(fmt,')') - tmp - 1); |
---|
1575 | } |
---|
1576 | return *width = atoi(tmp); |
---|
1577 | } |
---|
1578 | |
---|
1579 | char* substr(const char* S, const int pos, const int len) |
---|
1580 | { |
---|
1581 | int i; |
---|
1582 | char *SubS; |
---|
1583 | if ( pos+len <= strlen(S)) { |
---|
1584 | SubS = (char *)malloc(len+1); |
---|
1585 | if ( SubS == NULL ) IOHBTerminate("Insufficient memory for SubS."); |
---|
1586 | for (i=0;i<len;i++) SubS[i] = S[pos+i]; |
---|
1587 | SubS[len] = (char) NULL; |
---|
1588 | } else { |
---|
1589 | SubS = NULL; |
---|
1590 | } |
---|
1591 | return SubS; |
---|
1592 | } |
---|
1593 | |
---|
1594 | #include<ctype.h> |
---|
1595 | void upcase(char* S) |
---|
1596 | { |
---|
1597 | /* Convert S to uppercase */ |
---|
1598 | int i,len; |
---|
1599 | if ( S == NULL ) return; |
---|
1600 | len = strlen(S); |
---|
1601 | for (i=0;i< len;i++) |
---|
1602 | S[i] = toupper(S[i]); |
---|
1603 | } |
---|
1604 | |
---|
1605 | void IOHBTerminate(char* message) |
---|
1606 | { |
---|
1607 | fprintf(stderr,message); |
---|
1608 | exit(1); |
---|
1609 | } |
---|
1610 | |
---|