1 #ifndef lint 2 static char vcid[] = "$Id: gcreate.c,v 1.89 1996/06/18 20:51:28 balay Exp curfman $"; 3 #endif 4 5 #include "sys.h" 6 #include "mat.h" /*I "mat.h" I*/ 7 8 /*@C 9 MatGetTypeFromOptions - Determines from the options database what matrix 10 format the user has specified. 11 12 Input Parameter: 13 . comm - the MPI communicator 14 . type - the type of matrix desired, for example MATSEQAIJ, MATMPIAIJ 15 . pre - optional string to prepend to the name 16 17 Output Parameters: 18 . set - flag indicating whether user set matrix type option. 19 20 Note: 21 This routine is automatically called within MatCreate(). 22 23 .keywords: matrix, get, format, from, options 24 25 .seealso: MatCreate() 26 @*/ 27 28 int MatGetTypeFromOptions(MPI_Comm comm,char *pre,MatType *type,int *set) 29 { 30 int size,flg1,flg2,flg3,flg4,flg5,flg8,flg9,flg10,flg12,flg13,ierr,flg11,flg14,flg15; 31 char p[64]; 32 33 PetscStrcpy(p,"-"); 34 if (pre) PetscStrcat(p,pre); 35 36 MPI_Comm_size(comm,&size); 37 ierr = OptionsHasName(PETSC_NULL,"-help",&flg1); CHKERRQ(ierr); 38 if (flg1) { 39 PetscPrintf(comm,"Matrix format options:\n"); 40 PetscPrintf(comm," %smat_aij, %smat_seqaij, %smat_mpiaij\n",p,p,p); 41 PetscPrintf(comm," %smat_baij, %smat_seqbaij, %smat_mpibaij\n",p,p,p); 42 PetscPrintf(comm," %smat_dense, %smat_seqdense, %smat_mpidense\n",p,p,p); 43 PetscPrintf(comm," %smat_mpirowbs, %smat_bdiag, %smat_seqbdiag, %smat_mpibdiag\n",p,p,p,p); 44 } 45 ierr = OptionsHasName(pre,"-mat_seqdense",&flg1); CHKERRQ(ierr); 46 ierr = OptionsHasName(pre,"-mat_mpidense",&flg2); CHKERRQ(ierr); 47 ierr = OptionsHasName(pre,"-mat_seqbdiag",&flg3); CHKERRQ(ierr); 48 ierr = OptionsHasName(pre,"-mat_mpibdiag",&flg4); CHKERRQ(ierr); 49 ierr = OptionsHasName(pre,"-mat_mpirowbs",&flg5); CHKERRQ(ierr); 50 ierr = OptionsHasName(pre,"-mat_seqbaij",&flg11); CHKERRQ(ierr); 51 ierr = OptionsHasName(pre,"-mat_mpibaij",&flg14); CHKERRQ(ierr); 52 ierr = OptionsHasName(pre,"-mat_mpiaij",&flg8); CHKERRQ(ierr); 53 ierr = OptionsHasName(pre,"-mat_seqaij",&flg9); CHKERRQ(ierr); 54 ierr = OptionsHasName(pre,"-mat_aij",&flg10); CHKERRQ(ierr); 55 ierr = OptionsHasName(pre,"-mat_bdiag",&flg12); CHKERRQ(ierr); 56 ierr = OptionsHasName(pre,"-mat_dense",&flg13); CHKERRQ(ierr); 57 ierr = OptionsHasName(pre,"-mat_baij",&flg15); CHKERRQ(ierr); 58 if (flg1) { 59 *type = MATSEQDENSE; 60 *set = 1; 61 } 62 else if (flg2) { 63 *type = MATMPIDENSE; 64 *set = 1; 65 } 66 else if (flg3) { 67 *type = MATSEQBDIAG; 68 *set = 1; 69 } 70 else if (flg4) { 71 *type = MATMPIBDIAG; 72 *set = 1; 73 } 74 else if (flg5) { 75 *type = MATMPIROWBS; 76 *set = 1; 77 } 78 else if (flg8) { 79 *type = MATMPIAIJ; 80 *set = 1; 81 } 82 else if (flg9){ 83 *type = MATSEQAIJ; 84 *set = 1; 85 } 86 else if (flg10) { 87 if (size == 1) *type = MATSEQAIJ; 88 else *type = MATMPIAIJ; 89 *set = 1; 90 } 91 else if (flg11) { 92 *type = MATSEQBAIJ; 93 *set = 1; 94 } 95 else if (flg12) { 96 if (size == 1) *type = MATSEQBDIAG; 97 else *type = MATMPIBDIAG; 98 *set = 1; 99 } 100 else if (flg13) { 101 if (size == 1) *type = MATSEQDENSE; 102 else *type = MATMPIDENSE; 103 *set = 1; 104 } 105 else if (flg14) { 106 *type = MATMPIBAIJ; 107 *set = 1; 108 } 109 else if (flg15) { 110 if (size == 1) *type = MATSEQBAIJ; 111 else *type = MATMPIBAIJ; 112 *set = 1; 113 } 114 else { 115 if (size == 1) *type = MATSEQAIJ; 116 else *type = MATMPIAIJ; 117 *set = 0; 118 } 119 return 0; 120 } 121 122 /*@C 123 MatCreate - Creates a matrix, where the type is determined 124 from the options database. Generates a parallel MPI matrix if the 125 communicator has more than one processor. 126 127 Input Parameters: 128 . m - number of global rows 129 . n - number of global columns 130 . comm - MPI communicator 131 132 Output Parameter: 133 . A - the matrix 134 135 Basic Options Database Keys: 136 These options use MatCreateSeqXXX or MatCreateMPIXXX, 137 depending on the communicator, comm. 138 $ -mat_aij : AIJ type 139 $ -mat_dense : dense type 140 $ -mat_bdiag : block diagonal type 141 142 More Options Database Keys: 143 $ -mat_seqaij : AIJ type, uses MatCreateSeqAIJ 144 $ -mat_mpiaij : AIJ type, uses MatCreateMPIAIJ 145 $ -mat_seqbdiag : block diagonal type, uses 146 $ MatCreateSeqBDiag() 147 $ -mat_mpibdiag : block diagonal type, uses 148 $ MatCreateMPIBDiag() 149 $ -mat_mpirowbs : rowbs type, uses MatCreateMPIRowbs() 150 $ -mat_seqdense : dense type, uses MatCreateSeqDense() 151 $ -mat_mpidense : dense type, uses MatCreateMPIDense() 152 $ -mat_seqbaij : block AIJ type, uses MatCreateSeqBAIJ() 153 154 Notes: 155 The default matrix type is AIJ, using MatCreateSeqAIJ() and 156 MatCreateMPIAIJ(). 157 158 .keywords: matrix, create 159 160 .seealso: MatCreateSeqAIJ((), MatCreateMPIAIJ(), 161 MatCreateSeqBDiag(),MatCreateMPIBDiag(), 162 MatCreateSeqDense(), MatCreateMPIDense(), 163 MatCreateMPIRowbs(), MatCreateSeqBAIJ, 164 MatConvert(), MatGetTypeFromOptions() 165 @*/ 166 int MatCreate(MPI_Comm comm,int m,int n,Mat *A) 167 { 168 MatType type; 169 int set, ierr, bs=1, flg; 170 171 ierr = MatGetTypeFromOptions(comm,0,&type,&set); CHKERRQ(ierr); 172 switch (type) { 173 case MATSEQDENSE: 174 ierr = MatCreateSeqDense(comm,m,n,PETSC_NULL,A); CHKERRQ(ierr); 175 break; 176 case MATMPIBDIAG: 177 ierr = MatCreateMPIBDiag(comm,PETSC_DECIDE,m,n,PETSC_DEFAULT,PETSC_DEFAULT, 178 PETSC_NULL,PETSC_NULL,A); CHKERRQ(ierr); 179 break; 180 case MATSEQBDIAG: 181 ierr = MatCreateSeqBDiag(comm,m,n,PETSC_DEFAULT,PETSC_DEFAULT,PETSC_NULL, 182 PETSC_NULL,A); CHKERRQ(ierr); 183 break; 184 case MATMPIROWBS: 185 ierr = MatCreateMPIRowbs(comm,PETSC_DECIDE,m,PETSC_DEFAULT,PETSC_NULL, 186 PETSC_NULL,A); CHKERRQ(ierr); 187 break; 188 case MATMPIDENSE: 189 ierr = MatCreateMPIDense(comm,PETSC_DECIDE,PETSC_DECIDE,m,n,PETSC_NULL,A); CHKERRQ(ierr); 190 break; 191 case MATMPIAIJ: 192 ierr = MatCreateMPIAIJ(comm,PETSC_DECIDE,PETSC_DECIDE,m,n,PETSC_DEFAULT, 193 PETSC_NULL,PETSC_DEFAULT,PETSC_NULL,A); CHKERRQ(ierr); 194 break; 195 case MATSEQBAIJ: 196 ierr = OptionsGetInt(PETSC_NULL,"-mat_block_size",&bs,&flg); CHKERRQ(ierr); 197 ierr = MatCreateSeqBAIJ(comm,bs,m,n,PETSC_DEFAULT,PETSC_NULL,A); CHKERRQ(ierr); 198 break; 199 case MATMPIBAIJ: 200 ierr = OptionsGetInt(PETSC_NULL,"-mat_block_size",&bs,&flg); CHKERRQ(ierr); 201 ierr = MatCreateMPIBAIJ(comm,bs,PETSC_NULL,PETSC_NULL,m,n,PETSC_DEFAULT,PETSC_NULL,PETSC_DEFAULT,PETSC_NULL,A); CHKERRQ(ierr); 202 break; 203 default: 204 ierr = MatCreateSeqAIJ(comm,m,n,PETSC_DEFAULT,PETSC_NULL,A); CHKERRQ(ierr); 205 break; 206 } 207 return 0; 208 } 209 210 #include "matimpl.h" 211 /*@C 212 MatGetType - Gets the matrix type and name (as a string) from the matrix. 213 214 Input Parameter: 215 . mat - the matrix 216 217 Output Parameter: 218 . type - the matrix type (or use PETSC_NULL) 219 . name - name of matrix type (or use PETSC_NULL) 220 221 .keywords: matrix, get, type, name 222 @*/ 223 int MatGetType(Mat mat,MatType *type,char **name) 224 { 225 int itype = (int)mat->type; 226 char *matname[10]; 227 228 if (type) *type = (MatType) mat->type; 229 if (name) { 230 /* Note: Be sure that this list corresponds to the enum in mat.h */ 231 matname[0] = "MATSEQDENSE"; 232 matname[1] = "MATSEQAIJ"; 233 matname[2] = "MATMPIAIJ"; 234 matname[3] = "MATSHELL"; 235 matname[4] = "MATMPIROWBS"; 236 matname[5] = "MATSEQBDIAG"; 237 matname[6] = "MATMPIBDIAG"; 238 matname[7] = "MATMPIDENSE"; 239 matname[8] = "MATSEQBAIJ"; 240 241 if (itype < 0 || itype > 8) *name = "Unknown matrix type"; 242 else *name = matname[itype]; 243 } 244 return 0; 245 } 246 247 248 249