1 #ifndef lint 2 static char vcid[] = "$Id: gcreate.c,v 1.58 1995/11/21 03:09:33 curfman Exp bsmith $"; 3 #endif 4 5 #include "sys.h" 6 #include "mat.h" /*I "mat.h" I*/ 7 8 /*@C 9 MatGetFormatFromOptions - 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 MatGetFormatFromOptions(MPI_Comm comm,char *pre,MatType *type,int *set) 29 { 30 int size; 31 char *p = "-"; 32 33 if (pre) p = pre; 34 MPI_Comm_size(comm,&size); 35 if (OptionsHasName(PetscNull,"-help")) { 36 MPIU_printf(comm,"Matrix format options:\n"); 37 MPIU_printf(comm," %smat_aij, %smat_seqaij, %smat_mpiaij\n",p,p,p); 38 MPIU_printf(comm," %smat_row, %smat_seqrow, %smat_mpirow\n",p,p,p); 39 MPIU_printf(comm," %smat_dense, %smat_seqdense, %smat_mpidense\n",p,p,p); 40 MPIU_printf(comm," %smat_mpirowbs, %smat_bdiag, %smat_seqbdiag, %smat_mpibdiag\n",p,p,p,p); 41 /* We need to move the following to MatPrintHelp or some analogous routine */ 42 MPIU_printf(comm,"More matrix options:\n"); 43 MPIU_printf(comm," %smat_view_info : view basic matrix info during MatAssemblyEnd()\n",p); 44 MPIU_printf(comm," %smat_view_info_detailed : view detailed matrix info during MatAssemblyEnd()\n",p); 45 MPIU_printf(comm," %smat_view_draw : draw nonzero matrix structure during MatAssemblyEnd()\n",p); 46 MPIU_printf(comm," -pause <sec> : set seconds of display pause\n"); 47 MPIU_printf(comm," -display <name> : set alternate display\n"); 48 } 49 if (OptionsHasName(pre,"-mat_seqdense")) { 50 *type = MATSEQDENSE; 51 *set = 1; 52 } 53 else if (OptionsHasName(pre,"-mat_mpidense")) { 54 *type = MATMPIDENSE; 55 *set = 1; 56 } 57 else if (OptionsHasName(pre,"-mat_seqbdiag")) { 58 *type = MATSEQBDIAG; 59 *set = 1; 60 } 61 else if (OptionsHasName(pre,"-mat_mpibdiag")) { 62 *type = MATMPIBDIAG; 63 *set = 1; 64 } 65 else if (OptionsHasName(pre,"-mat_mpirowbs")) { 66 *type = MATMPIROWBS; 67 *set = 1; 68 } 69 else if (OptionsHasName(pre,"-mat_mpirow")) { 70 *type = MATMPIROW; 71 *set = 1; 72 } 73 else if (OptionsHasName(pre,"-mat_seqrow")){ 74 *type = MATSEQROW; 75 *set = 1; 76 } 77 else if (OptionsHasName(pre,"-mat_mpiaij")) { 78 *type = MATMPIAIJ; 79 *set = 1; 80 } 81 else if (OptionsHasName(pre,"-mat_seqaij")){ 82 *type = MATSEQAIJ; 83 *set = 1; 84 } 85 else if (OptionsHasName(pre,"-mat_aij")){ 86 if (size == 1) *type = MATSEQAIJ; 87 else *type = MATMPIAIJ; 88 *set = 1; 89 } 90 else if (OptionsHasName(pre,"-mat_row")){ 91 if (size == 1) *type = MATSEQROW; 92 else *type = MATMPIROW; 93 *set = 1; 94 } 95 else if (OptionsHasName(pre,"-mat_bdiag")){ 96 if (size == 1) *type = MATSEQBDIAG; 97 else *type = MATMPIBDIAG; 98 *set = 1; 99 } 100 else if (OptionsHasName(pre,"-mat_dense")){ 101 if (size == 1) *type = MATSEQDENSE; 102 else *type = MATMPIDENSE; 103 *set = 1; 104 } 105 else { 106 if (size == 1) *type = MATSEQAIJ; 107 else *type = MATMPIAIJ; 108 *set = 0; 109 } 110 return 0; 111 } 112 113 /*@C 114 MatCreate - Creates a matrix, where the type is determined 115 from the options database. Generates a parallel MPI matrix if the 116 communicator has more than one processor. 117 118 Input Parameters: 119 . m - number of global rows 120 . n - number of global columns 121 . comm - MPI communicator 122 123 Output Parameter: 124 . V - location to stash resulting matrix 125 126 Options Database Keywords: 127 $ -mat_seqaij : AIJ type, uses MatCreateSeqAIJ 128 $ -mat_mpiaij : AIJ type, uses MatCreateMPIAIJ 129 $ -mat_aij : AIJ type, (Seq or MPI depending on comm) 130 $ -mat_seqrow : row type, uses MatCreateSeqRow() 131 $ -mat_mpirow : MatCreateMPIRow() 132 $ -mat_row : row type, (Seq or MPI depending on comm) 133 $ -mat_seqbdiag : block diagonal type, uses 134 $ MatCreateSeqBDiag() 135 $ -mat_mpibdiag : block diagonal type, uses 136 $ MatCreateMPIBDiag() 137 $ -mat_bdiag : block diagonal type, 138 $ (Seq or MPI depending on comm) 139 $ -mat_mpirowbs : rowbs type, uses MatCreateMPIRowbs() 140 $ -mat_dense : dense type, (Seq or MPI depending on comm) 141 $ -mat_mpidense : dense type, uses MatCreateSeqDense() 142 $ -mat_mpidense : dense type, uses MatCreateMPIDense() 143 144 Notes: 145 The default matrix type is AIJ, using MatCreateSeqAIJ() and 146 MatCreateMPIAIJ(). 147 148 .keywords: matrix, create, initial 149 150 .seealso: MatCreateSeqAIJ((), MatCreateMPIAIJ(), 151 MatCreateSeqRow(), MatCreateMPIRow(), 152 MatCreateSeqBDiag(),MatCreateMPIBDiag(), 153 MatCreateSeqDense(), MatCreateMPIDense(), 154 MatCreateMPIRowbs(), MatConvert() 155 MatGetFormatFromOptions() 156 @*/ 157 int MatCreate(MPI_Comm comm,int m,int n,Mat *V) 158 { 159 MatType type; 160 int set,ierr; 161 162 ierr = MatGetFormatFromOptions(comm,0,&type,&set); CHKERRQ(ierr); 163 if (type == MATSEQDENSE) { 164 return MatCreateSeqDense(comm,m,n,0,V); 165 } 166 if (type == MATSEQBDIAG || type == MATMPIBDIAG) { 167 int nb = 1, ndiag = 0, ndiag2 = 0, *d = 0; 168 if (OptionsHasName(PetscNull,"-help")) { 169 MPIU_printf(comm,"Options with -mat_bdiag: -mat_bdiag_bsize <block_size>\n"); 170 MPIU_printf(comm," -mat_bdiag_ndiag <number_diags> \n"); 171 MPIU_printf(comm," -mat_bdiag_dvals <d1,d2,d3,...> (diagonal numbers)\n"); 172 MPIU_printf(comm," (for example) -mat_bdiag_dvals -5,-1,0,1,5\n"); 173 } 174 OptionsGetInt(PetscNull,"-mat_bdiag_bsize",&nb); 175 OptionsGetInt(PetscNull,"-mat_bdiag_ndiag",&ndiag); 176 if (ndiag) { 177 d = (int *)PetscMalloc( ndiag * sizeof(int) ); CHKPTRQ(d); 178 ndiag2 = ndiag; 179 OptionsGetIntArray(PetscNull,"-mat_bdiag_dvals",d,&ndiag2); 180 if (ndiag2 != ndiag) 181 SETERRQ(1,"MatCreate: Incompatible number of diags and diagonal vals"); 182 } else if (OptionsHasName(PetscNull,"-mat_bdiag_dvals")) { 183 SETERRQ(1,"MatCreate: Must specify number of diagonals with -mat_bdiag_ndiag"); 184 } 185 if (type == MATMPIBDIAG) { 186 ierr = MatCreateMPIBDiag(comm,PETSC_DECIDE,m,n,ndiag,nb,d,PetscNull,V); CHKERRQ(ierr); 187 } else { 188 ierr = MatCreateSeqBDiag(comm,m,n,ndiag,nb,d,PetscNull,V); CHKERRQ(ierr); 189 } 190 if (d) PetscFree(d); 191 return 0; 192 } 193 if (type == MATMPIROWBS) { 194 return MatCreateMPIRowbs(comm,PETSC_DECIDE,m,5,0,PetscNull,V); 195 } 196 if (type == MATMPIROW) { 197 return MatCreateMPIRow(comm,PETSC_DECIDE,PETSC_DECIDE,m,n,5,0,0,0,V); 198 } 199 if (type == MATSEQROW) { 200 return MatCreateSeqRow(comm,m,n,10,0,V); 201 } 202 if (type == MATMPIDENSE) { 203 return MatCreateMPIDense(comm,PETSC_DECIDE,PETSC_DECIDE,m,n,0,V); 204 } 205 if (type == MATMPIAIJ) { 206 return MatCreateMPIAIJ(comm,PETSC_DECIDE,PETSC_DECIDE,m,n,5,0,0,0,V); 207 } 208 return MatCreateSeqAIJ(comm,m,n,10,0,V); 209 } 210 211 #include "matimpl.h" 212 /*@C 213 MatGetName - Gets the matrix type name (as a string) from the matrix. 214 215 Input Parameter: 216 . mat - the matrix 217 218 Output Parameter: 219 . name - name of matrix type 220 221 .keywords: matrix, get, name 222 223 .seealso: MatGetType() 224 @*/ 225 int MatGetName(Mat mat,char **name) 226 { 227 int itype = (int)mat->type; 228 char *matname[10]; 229 230 /* 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] = "MATSEQROW"; 236 matname[5] = "MATMPIROW"; 237 matname[6] = "MATMPIROWBS"; 238 matname[7] = "MATSEQBDIAG"; 239 matname[8] = "MATMPIBDIAG"; 240 matname[9] = "MATMPIDENSE"; 241 if (itype < 0 || itype > 9) *name = "Unknown matrix type"; 242 else *name = matname[itype]; 243 return 0; 244 } 245 246 247 248