1 | |
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2 | |
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3 | #include "mpiP.h" |
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4 | #include "mpi.h" |
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5 | #include "type.h" |
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6 | |
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7 | /****************************************************************************/ |
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8 | |
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9 | static int initialized=0; |
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10 | |
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11 | |
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12 | /* Store fortran pointer values here */ |
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13 | |
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14 | static int *f_MPI_STATUS_IGNORE; |
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15 | static int *f_MPI_STATUSES_IGNORE; |
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16 | static int *f_MPI_IN_PLACE; |
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17 | |
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18 | static char *mpi_version_string="mpi-serial 2.3"; |
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19 | |
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20 | |
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21 | /****************************************************************************/ |
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22 | |
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23 | |
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24 | /* |
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25 | * INIT/FINALIZE |
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26 | * |
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27 | */ |
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28 | |
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29 | |
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30 | |
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31 | FC_FUNC( mpi_init_fort , MPI_INIT_FORT) |
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32 | (int *f_MPI_COMM_WORLD, |
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33 | int *f_MPI_ANY_SOURCE, int *f_MPI_ANY_TAG, |
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34 | int *f_MPI_PROC_NULL, int *f_MPI_ROOT, |
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35 | int *f_MPI_COMM_NULL, int *f_MPI_REQUEST_NULL, |
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36 | int *f_MPI_GROUP_NULL, int *f_MPI_GROUP_EMPTY, |
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37 | int *f_MPI_UNDEFINED, |
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38 | int *f_MPI_MAX_ERROR_STRING, |
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39 | int *f_MPI_MAX_PROCESSOR_NAME, |
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40 | int *f_MPI_STATUS_SIZE, |
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41 | int *f_MPI_SOURCE, int *f_MPI_TAG, int *f_MPI_ERROR, |
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42 | int *f_status, |
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43 | int *fsource, int *ftag, int *ferror, |
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44 | int *f_MPI_INTEGER, void *fint1, void *fint2, |
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45 | int *f_MPI_LOGICAL, void *flog1, void *flog2, |
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46 | int *f_MPI_REAL, void *freal1, void *freal2, |
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47 | int *f_MPI_DOUBLE_PRECISION, |
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48 | void *fdub1, void *fdub2, |
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49 | int *f_MPI_COMPLEX, void *fcomp1, void *fcomp2, |
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50 | int *ierror) |
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51 | { |
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52 | int err; |
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53 | int size; |
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54 | int offset; |
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55 | |
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56 | *ierror=MPI_Init(NULL,NULL); |
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57 | |
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58 | err=0; |
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59 | |
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60 | /* |
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61 | * These 3 macros compare things from mpif.h (as passed in by the f_ |
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62 | * arguments) to the values in C (from #including mpi.h). |
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63 | * |
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64 | * Unfortunately, this kind of thing is done most easily in a nasty |
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65 | * looking macto. |
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66 | * |
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67 | */ |
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68 | |
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69 | |
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70 | /* |
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71 | * verify_eq |
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72 | * compare value of constants in C and fortran |
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73 | * i.e. compare *f_<name> to <name> |
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74 | */ |
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75 | |
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76 | #define verify_eq(name) \ |
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77 | if (*f_##name != name) \ |
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78 | { fprintf(stderr,"mpi-serial: mpi_init_fort: %s not consistent " \ |
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79 | "between mpif.h (%d) and mpi.h (%d)\n",\ |
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80 | #name,*f_##name,name); \ |
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81 | err=1; } |
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82 | |
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83 | #define verify_eq_warn(name) \ |
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84 | if (*f_##name != name) \ |
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85 | { fprintf(stderr,"mpi-serial: mpi_init_fort: warning: %s not consistent " \ |
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86 | "between mpif.h (%d) and mpi.h (%d)\n",\ |
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87 | #name,*f_##name,name); \ |
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88 | } |
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89 | |
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90 | |
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91 | /* |
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92 | * verify_size |
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93 | * verify that the type name in fortran has the correct |
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94 | * value (i.e. the size of that data type). |
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95 | * Determine size by subtracting the pointer values of two |
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96 | * consecutive array locations. |
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97 | */ |
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98 | |
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99 | #define verify_size(name,p1,p2) \ |
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100 | if ( (size=((char *)(p2) - (char *)(p1))) != Simpletype_length( \ |
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101 | (*(Datatype*)mpi_handle_to_datatype(*f_##name))->pairs[0].type) ) \ |
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102 | { fprintf(stderr,"mpi-serial: mpi_init_fort: mpif.h %s (%d) " \ |
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103 | "does not match actual fortran size (%d)\n", \ |
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104 | #name,*f_##name,size); \ |
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105 | err=1; } |
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106 | |
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107 | /* |
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108 | * verify_field |
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109 | * check the struct member offsets for MPI_Status vs. the |
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110 | * fortan integer array offsets. E.g. the location of |
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111 | * status->MPI_SOURCE should be the same as STATUS(MPI_SOURCE) |
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112 | */ |
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113 | |
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114 | #define verify_field(name) \ |
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115 | { offset= (char *)&((MPI_Status *)f_status)->name - (char *)f_status; \ |
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116 | if ( offset != (*f_##name-1)*sizeof(int) ) \ |
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117 | { fprintf(stderr,"mpi-serial: mpi_init_fort: mpif.h %s (%d) (%d bytes) " \ |
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118 | "is inconsistent w/offset in MPI_Status (%d bytes)\n", \ |
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119 | #name,*f_##name,(*f_##name-1)*sizeof(int),offset); \ |
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120 | err=1; }} |
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121 | |
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122 | |
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123 | |
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124 | verify_eq(MPI_COMM_WORLD); |
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125 | verify_eq(MPI_ANY_SOURCE); |
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126 | verify_eq(MPI_ANY_TAG); |
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127 | verify_eq(MPI_PROC_NULL); |
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128 | verify_eq(MPI_ROOT); |
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129 | verify_eq(MPI_COMM_NULL); |
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130 | verify_eq(MPI_REQUEST_NULL); |
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131 | verify_eq(MPI_GROUP_NULL); |
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132 | verify_eq(MPI_GROUP_EMPTY); |
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133 | verify_eq(MPI_UNDEFINED); |
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134 | verify_eq(MPI_MAX_ERROR_STRING); |
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135 | verify_eq(MPI_MAX_PROCESSOR_NAME); |
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136 | |
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137 | verify_eq(MPI_STATUS_SIZE); |
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138 | verify_field(MPI_SOURCE); |
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139 | verify_field(MPI_TAG); |
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140 | verify_field(MPI_ERROR); |
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141 | |
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142 | verify_eq(MPI_INTEGER); |
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143 | verify_size(MPI_INTEGER,fint1,fint2); |
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144 | |
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145 | verify_size(MPI_LOGICAL,flog1,flog2); |
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146 | |
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147 | verify_eq_warn(MPI_REAL); |
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148 | verify_size(MPI_REAL,freal1,freal2); |
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149 | |
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150 | verify_eq(MPI_DOUBLE_PRECISION); |
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151 | verify_size(MPI_DOUBLE_PRECISION,fdub1,fdub2); |
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152 | |
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153 | verify_size(MPI_COMPLEX,fcomp1,fcomp2); |
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154 | |
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155 | if (err) |
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156 | abort(); |
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157 | } |
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158 | |
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159 | int MPI_Init_thread(int *argc, char **argv[], int required, int *provided) |
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160 | { |
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161 | *provided = required; |
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162 | return MPI_Init(argc, argv); |
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163 | } |
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164 | |
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165 | int MPI_Init(int *argc, char **argv[]) |
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166 | { |
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167 | MPI_Comm my_comm_world; |
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168 | |
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169 | if (sizeof(MPI_Aint) < sizeof(void *)) |
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170 | { |
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171 | fprintf(stderr, "mpi-serial: MPI_Init: " |
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172 | "MPI_Aint is not large enough for void *\n"); |
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173 | abort(); |
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174 | } |
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175 | |
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176 | my_comm_world=mpi_comm_new(); |
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177 | |
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178 | if (my_comm_world != MPI_COMM_WORLD) |
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179 | { |
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180 | fprintf(stderr,"MPI_Init: conflicting MPI_COMM_WORLD\n"); |
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181 | abort(); |
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182 | } |
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183 | |
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184 | // call this to have the fortran routine call back and save |
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185 | // values for f_MPI_STATUS_IGNORE and f_MPI_STATUSES_IGNORE |
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186 | FC_FUNC(mpi_get_fort_pointers,MPI_GET_FORT_POINTERS)(); // the () are important |
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187 | |
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188 | initialized=1; |
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189 | return(MPI_SUCCESS); |
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190 | } |
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191 | |
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192 | |
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193 | /*********/ |
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194 | |
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195 | |
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196 | FC_FUNC( mpi_finalize, MPI_FINALIZE )(int *ierror) |
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197 | { |
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198 | *ierror=MPI_Finalize(); |
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199 | } |
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200 | |
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201 | |
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202 | /* |
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203 | * MPI_Finalize() |
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204 | * |
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205 | * this library doesn't support re-initializing MPI, so |
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206 | * the finalize will just leave everythign as it is... |
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207 | * |
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208 | */ |
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209 | |
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210 | |
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211 | int MPI_Finalize(void) |
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212 | { |
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213 | initialized=0; |
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214 | |
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215 | mpi_destroy_handles(); |
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216 | |
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217 | return(MPI_SUCCESS); |
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218 | } |
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219 | |
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220 | |
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221 | /*********/ |
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222 | |
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223 | |
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224 | FC_FUNC( mpi_abort , MPI_ABORT )(int *comm, int *errorcode, int *ierror) |
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225 | { |
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226 | *ierror=MPI_Abort( *comm, *errorcode); |
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227 | } |
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228 | |
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229 | |
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230 | |
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231 | int MPI_Abort(MPI_Comm comm, int errorcode) |
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232 | { |
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233 | fprintf(stderr,"MPI_Abort: error code = %d\n",errorcode); |
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234 | exit(errorcode); |
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235 | } |
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236 | |
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237 | |
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238 | /*********/ |
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239 | |
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240 | |
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241 | |
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242 | FC_FUNC( mpi_error_string , MPI_ERROR_STRING) |
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243 | (int *errorcode, char *string, |
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244 | int *resultlen, int *ierror) |
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245 | { |
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246 | *ierror=MPI_Error_string(*errorcode, string, resultlen); |
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247 | } |
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248 | |
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249 | |
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250 | int MPI_Error_string(int errorcode, char *string, int *resultlen) |
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251 | { |
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252 | sprintf(string,"MPI Error: code %d\n",errorcode); |
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253 | *resultlen=strlen(string); |
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254 | |
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255 | return(MPI_SUCCESS); |
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256 | } |
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257 | |
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258 | |
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259 | /*********/ |
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260 | |
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261 | |
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262 | FC_FUNC( mpi_get_processor_name , MPI_GET_PROCESSOR_NAME ) |
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263 | (char *name, int *resultlen, int *ierror) |
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264 | { |
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265 | *ierror=MPI_Get_processor_name(name,resultlen); |
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266 | } |
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267 | |
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268 | |
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269 | int MPI_Get_processor_name(char *name, int *resultlen) |
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270 | { |
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271 | int ret; |
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272 | |
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273 | ret=gethostname(name,MPI_MAX_PROCESSOR_NAME); |
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274 | |
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275 | if (ret!=0) |
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276 | strncpy(name,"unknown host name",MPI_MAX_PROCESSOR_NAME); |
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277 | |
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278 | |
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279 | name[MPI_MAX_PROCESSOR_NAME-1]='\0'; /* make sure NULL terminated */ |
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280 | *resultlen=strlen(name); |
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281 | |
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282 | return(MPI_SUCCESS); |
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283 | } |
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284 | |
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285 | |
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286 | /*********/ |
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287 | |
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288 | |
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289 | FC_FUNC( mpi_initialized , MPI_INITIALIZED )(int *flag, int *ierror) |
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290 | { |
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291 | *ierror=MPI_Initialized(flag); |
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292 | } |
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293 | |
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294 | |
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295 | int MPI_Initialized(int *flag) |
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296 | { |
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297 | *flag= initialized; |
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298 | |
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299 | return(MPI_SUCCESS); |
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300 | } |
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301 | |
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302 | |
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303 | /**********/ |
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304 | |
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305 | |
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306 | void FC_FUNC( mpi_get_library_version, MPI_GET_LIBRARY_VERSION) (char *version, int *resultlen, int *ierror) |
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307 | { |
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308 | MPI_Get_library_version(version,resultlen); |
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309 | |
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310 | // Sanity check before the memset() |
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311 | if ( (*resultlen) > (MPI_MAX_LIBRARY_VERSION_STRING-1) ) |
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312 | abort(); |
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313 | |
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314 | memset(version+(*resultlen),' ',MPI_MAX_LIBRARY_VERSION_STRING-(*resultlen)); |
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315 | |
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316 | *ierror=MPI_SUCCESS; |
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317 | } |
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318 | |
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319 | |
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320 | |
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321 | int MPI_Get_library_version(char *version, int *resultlen) |
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322 | { |
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323 | |
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324 | strncpy(version,mpi_version_string,MPI_MAX_LIBRARY_VERSION_STRING); |
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325 | // Make sure it is null terminated |
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326 | version[MPI_MAX_LIBRARY_VERSION_STRING-1]='\0'; |
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327 | *resultlen=strlen(version); |
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328 | |
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329 | return(MPI_SUCCESS); |
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330 | } |
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331 | |
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332 | /**********/ |
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333 | void FC_FUNC( mpi_get_version, MPI_GET_VERSION )(int *mpi_vers, int *mpi_subvers, int *ierror) |
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334 | { |
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335 | MPI_Get_Version(mpi_vers, mpi_subvers); |
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336 | |
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337 | *ierror=MPI_SUCCESS; |
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338 | } |
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339 | |
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340 | int MPI_Get_Version(int *mpi_vers, int *mpi_subvers) |
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341 | { |
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342 | *mpi_vers = 1; |
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343 | *mpi_subvers = 0; |
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344 | |
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345 | return (MPI_SUCCESS); |
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346 | } |
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347 | |
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348 | /**********/ |
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349 | |
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350 | |
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351 | void FC_FUNC( mpi_save_fort_pointers, MPI_SAVE_FORT_POINTERS ) (int *status, int *statuses, int *in_place) |
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352 | { |
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353 | f_MPI_STATUS_IGNORE=status; |
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354 | f_MPI_STATUSES_IGNORE=statuses; |
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355 | f_MPI_IN_PLACE=in_place; |
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356 | } |
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357 | |
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358 | |
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359 | |
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360 | MPI_Status *mpi_c_status(int *status) |
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361 | { |
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362 | if (status==f_MPI_STATUS_IGNORE) |
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363 | return(MPI_STATUS_IGNORE); |
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364 | |
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365 | return((MPI_Status *)status); |
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366 | } |
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367 | |
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368 | |
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369 | MPI_Status *mpi_c_statuses(int *statuses) |
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370 | { |
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371 | if (statuses==f_MPI_STATUSES_IGNORE) |
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372 | return(MPI_STATUSES_IGNORE); |
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373 | |
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374 | return((MPI_Status *)statuses); |
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375 | } |
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376 | |
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377 | |
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378 | void *mpi_c_in_place(void *buffer) |
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379 | { |
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380 | if (buffer==(void *)f_MPI_IN_PLACE) |
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381 | return(MPI_IN_PLACE); |
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382 | |
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383 | return(buffer); |
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384 | } |
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