1 2 static char help[] = "Tests converting a matrix to another format with MatConvert().\n\n"; 3 4 #include <petscmat.h> 5 /* Usage: mpiexec -n <np> ex55 -verbose <0 or 1> */ 6 7 int main(int argc,char **args) 8 { 9 Mat C,A,B,D; 10 PetscErrorCode ierr; 11 PetscInt i,j,ntypes,bs,mbs,m,block,d_nz=6, o_nz=3,col[3],row,verbose=0; 12 PetscMPIInt size,rank; 13 MatType type[9]; 14 char file[PETSC_MAX_PATH_LEN]; 15 PetscViewer fd; 16 PetscBool equal,flg_loadmat,flg,issymmetric; 17 PetscScalar value[3]; 18 19 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 20 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-verbose",&verbose,NULL)); 21 CHKERRQ(PetscOptionsGetString(NULL,NULL,"-f",file,sizeof(file),&flg_loadmat)); 22 CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 23 CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 24 25 CHKERRQ(PetscOptionsHasName(NULL,NULL,"-testseqaij",&flg)); 26 if (flg) { 27 if (size == 1) { 28 type[0] = MATSEQAIJ; 29 } else { 30 type[0] = MATMPIAIJ; 31 } 32 } else { 33 type[0] = MATAIJ; 34 } 35 if (size == 1) { 36 ntypes = 3; 37 type[1] = MATSEQBAIJ; 38 type[2] = MATSEQSBAIJ; 39 } else { 40 ntypes = 3; 41 type[1] = MATMPIBAIJ; 42 type[2] = MATMPISBAIJ; 43 } 44 45 /* input matrix C */ 46 if (flg_loadmat) { 47 /* Open binary file. */ 48 CHKERRQ(PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&fd)); 49 50 /* Load a baij matrix, then destroy the viewer. */ 51 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&C)); 52 if (size == 1) { 53 CHKERRQ(MatSetType(C,MATSEQBAIJ)); 54 } else { 55 CHKERRQ(MatSetType(C,MATMPIBAIJ)); 56 } 57 CHKERRQ(MatSetFromOptions(C)); 58 CHKERRQ(MatLoad(C,fd)); 59 CHKERRQ(PetscViewerDestroy(&fd)); 60 } else { /* Create a baij mat with bs>1 */ 61 bs = 2; mbs=8; 62 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-mbs",&mbs,NULL)); 63 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-bs",&bs,NULL)); 64 PetscCheckFalse(bs <= 1,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG," bs must be >1 in this case"); 65 m = mbs*bs; 66 CHKERRQ(MatCreateBAIJ(PETSC_COMM_WORLD,bs,PETSC_DECIDE,PETSC_DECIDE,m,m,d_nz,NULL,o_nz,NULL,&C)); 67 for (block=0; block<mbs; block++) { 68 /* diagonal blocks */ 69 value[0] = -1.0; value[1] = 4.0; value[2] = -1.0; 70 for (i=1+block*bs; i<bs-1+block*bs; i++) { 71 col[0] = i-1; col[1] = i; col[2] = i+1; 72 CHKERRQ(MatSetValues(C,1,&i,3,col,value,INSERT_VALUES)); 73 } 74 i = bs - 1+block*bs; col[0] = bs - 2+block*bs; col[1] = bs - 1+block*bs; 75 value[0]=-1.0; value[1]=4.0; 76 CHKERRQ(MatSetValues(C,1,&i,2,col,value,INSERT_VALUES)); 77 78 i = 0+block*bs; col[0] = 0+block*bs; col[1] = 1+block*bs; 79 value[0]=4.0; value[1] = -1.0; 80 CHKERRQ(MatSetValues(C,1,&i,2,col,value,INSERT_VALUES)); 81 } 82 /* off-diagonal blocks */ 83 value[0]=-1.0; 84 for (i=0; i<(mbs-1)*bs; i++) { 85 col[0]=i+bs; 86 CHKERRQ(MatSetValues(C,1,&i,1,col,value,INSERT_VALUES)); 87 col[0]=i; row=i+bs; 88 CHKERRQ(MatSetValues(C,1,&row,1,col,value,INSERT_VALUES)); 89 } 90 CHKERRQ(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 91 CHKERRQ(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 92 } 93 { 94 /* Check the symmetry of C because it will be converted to a sbaij matrix */ 95 Mat Ctrans; 96 CHKERRQ(MatTranspose(C,MAT_INITIAL_MATRIX,&Ctrans)); 97 CHKERRQ(MatEqual(C,Ctrans,&flg)); 98 /* 99 { 100 CHKERRQ(MatAXPY(C,1.,Ctrans,DIFFERENT_NONZERO_PATTERN)); 101 flg = PETSC_TRUE; 102 } 103 */ 104 CHKERRQ(MatSetOption(C,MAT_SYMMETRIC,flg)); 105 CHKERRQ(MatDestroy(&Ctrans)); 106 } 107 CHKERRQ(MatIsSymmetric(C,0.0,&issymmetric)); 108 CHKERRQ(MatViewFromOptions(C,NULL,"-view_mat")); 109 110 /* convert C to other formats */ 111 for (i=0; i<ntypes; i++) { 112 PetscBool ismpisbaij,isseqsbaij; 113 114 CHKERRQ(PetscStrcmp(type[i],MATMPISBAIJ,&ismpisbaij)); 115 CHKERRQ(PetscStrcmp(type[i],MATMPISBAIJ,&isseqsbaij)); 116 if (!issymmetric && (ismpisbaij || isseqsbaij)) continue; 117 CHKERRQ(MatConvert(C,type[i],MAT_INITIAL_MATRIX,&A)); 118 CHKERRQ(MatMultEqual(A,C,10,&equal)); 119 PetscCheck(equal,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from BAIJ to %s",type[i]); 120 for (j=i+1; j<ntypes; j++) { 121 CHKERRQ(PetscStrcmp(type[j],MATMPISBAIJ,&ismpisbaij)); 122 CHKERRQ(PetscStrcmp(type[j],MATMPISBAIJ,&isseqsbaij)); 123 if (!issymmetric && (ismpisbaij || isseqsbaij)) continue; 124 if (verbose>0) { 125 CHKERRQ(PetscPrintf(PETSC_COMM_WORLD," \n[%d] test conversion between %s and %s\n",rank,type[i],type[j])); 126 } 127 128 if (rank == 0 && verbose) printf("Convert %s A to %s B\n",type[i],type[j]); 129 CHKERRQ(MatConvert(A,type[j],MAT_INITIAL_MATRIX,&B)); 130 /* 131 if (j == 2) { 132 CHKERRQ(PetscPrintf(PETSC_COMM_SELF," A: %s\n",type[i])); 133 CHKERRQ(MatView(A,PETSC_VIEWER_STDOUT_WORLD)); 134 CHKERRQ(PetscPrintf(PETSC_COMM_SELF," B: %s\n",type[j])); 135 CHKERRQ(MatView(B,PETSC_VIEWER_STDOUT_WORLD)); 136 } 137 */ 138 CHKERRQ(MatMultEqual(A,B,10,&equal)); 139 PetscCheck(equal,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from %s to %s",type[i],type[j]); 140 141 if (size == 1 || j != 2) { /* Matconvert from mpisbaij mat to other formats are not supported */ 142 if (rank == 0 && verbose) printf("Convert %s B to %s D\n",type[j],type[i]); 143 CHKERRQ(MatConvert(B,type[i],MAT_INITIAL_MATRIX,&D)); 144 CHKERRQ(MatMultEqual(B,D,10,&equal)); 145 PetscCheck(equal,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in conversion from %s to %s",type[j],type[i]); 146 147 CHKERRQ(MatDestroy(&D)); 148 } 149 CHKERRQ(MatDestroy(&B)); 150 CHKERRQ(MatDestroy(&D)); 151 } 152 153 /* Test in-place convert */ 154 if (size == 1) { /* size > 1 is not working yet! */ 155 j = (i+1)%ntypes; 156 CHKERRQ(PetscStrcmp(type[j],MATMPISBAIJ,&ismpisbaij)); 157 CHKERRQ(PetscStrcmp(type[j],MATMPISBAIJ,&isseqsbaij)); 158 if (!issymmetric && (ismpisbaij || isseqsbaij)) continue; 159 /* printf("[%d] i: %d, j: %d\n",rank,i,j); */ 160 CHKERRQ(MatConvert(A,type[j],MAT_INPLACE_MATRIX,&A)); 161 } 162 163 CHKERRQ(MatDestroy(&A)); 164 } 165 166 /* test BAIJ to MATIS */ 167 if (size > 1) { 168 MatType ctype; 169 170 CHKERRQ(MatGetType(C,&ctype)); 171 CHKERRQ(MatConvert(C,MATIS,MAT_INITIAL_MATRIX,&A)); 172 CHKERRQ(MatMultEqual(A,C,10,&equal)); 173 CHKERRQ(MatViewFromOptions(A,NULL,"-view_conv")); 174 if (!equal) { 175 Mat C2; 176 177 CHKERRQ(MatConvert(A,ctype,MAT_INITIAL_MATRIX,&C2)); 178 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_conv_assembled")); 179 CHKERRQ(MatAXPY(C2,-1.,C,DIFFERENT_NONZERO_PATTERN)); 180 CHKERRQ(MatChop(C2,PETSC_SMALL)); 181 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_err")); 182 CHKERRQ(MatDestroy(&C2)); 183 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Error in conversion from BAIJ to MATIS"); 184 } 185 CHKERRQ(MatConvert(C,MATIS,MAT_REUSE_MATRIX,&A)); 186 CHKERRQ(MatMultEqual(A,C,10,&equal)); 187 CHKERRQ(MatViewFromOptions(A,NULL,"-view_conv")); 188 if (!equal) { 189 Mat C2; 190 191 CHKERRQ(MatConvert(A,ctype,MAT_INITIAL_MATRIX,&C2)); 192 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_conv_assembled")); 193 CHKERRQ(MatAXPY(C2,-1.,C,DIFFERENT_NONZERO_PATTERN)); 194 CHKERRQ(MatChop(C2,PETSC_SMALL)); 195 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_err")); 196 CHKERRQ(MatDestroy(&C2)); 197 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Error in conversion from BAIJ to MATIS"); 198 } 199 CHKERRQ(MatDestroy(&A)); 200 CHKERRQ(MatDuplicate(C,MAT_COPY_VALUES,&A)); 201 CHKERRQ(MatConvert(A,MATIS,MAT_INPLACE_MATRIX,&A)); 202 CHKERRQ(MatViewFromOptions(A,NULL,"-view_conv")); 203 CHKERRQ(MatMultEqual(A,C,10,&equal)); 204 if (!equal) { 205 Mat C2; 206 207 CHKERRQ(MatViewFromOptions(A,NULL,"-view_conv")); 208 CHKERRQ(MatConvert(A,ctype,MAT_INITIAL_MATRIX,&C2)); 209 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_conv_assembled")); 210 CHKERRQ(MatAXPY(C2,-1.,C,DIFFERENT_NONZERO_PATTERN)); 211 CHKERRQ(MatChop(C2,PETSC_SMALL)); 212 CHKERRQ(MatViewFromOptions(C2,NULL,"-view_err")); 213 CHKERRQ(MatDestroy(&C2)); 214 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Error in conversion from BAIJ to MATIS"); 215 } 216 CHKERRQ(MatDestroy(&A)); 217 } 218 CHKERRQ(MatDestroy(&C)); 219 220 ierr = PetscFinalize(); 221 return ierr; 222 } 223 224 /*TEST 225 226 test: 227 228 test: 229 suffix: 2 230 nsize: 3 231 232 testset: 233 requires: parmetis 234 output_file: output/ex55_1.out 235 nsize: 3 236 args: -mat_is_disassemble_l2g_type nd -mat_partitioning_type parmetis 237 test: 238 suffix: matis_baij_parmetis_nd 239 test: 240 suffix: matis_aij_parmetis_nd 241 args: -testseqaij 242 test: 243 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 244 suffix: matis_poisson1_parmetis_nd 245 args: -f ${DATAFILESPATH}/matrices/poisson1 246 247 testset: 248 requires: ptscotch defined(PETSC_HAVE_SCOTCH_PARMETIS_V3_NODEND) 249 output_file: output/ex55_1.out 250 nsize: 4 251 args: -mat_is_disassemble_l2g_type nd -mat_partitioning_type ptscotch 252 test: 253 suffix: matis_baij_ptscotch_nd 254 test: 255 suffix: matis_aij_ptscotch_nd 256 args: -testseqaij 257 test: 258 requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES) 259 suffix: matis_poisson1_ptscotch_nd 260 args: -f ${DATAFILESPATH}/matrices/poisson1 261 262 TEST*/ 263