1 2 static char help[] = "Tests various routines in MatMPIBAIJ format.\n"; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **args) 7 { 8 Mat A; 9 PetscInt m=2,bs=1,M,row,col,start,end,i,j,k; 10 PetscMPIInt rank,size; 11 PetscScalar data=100; 12 PetscBool flg; 13 14 PetscCall(PetscInitialize(&argc,&args,(char*)0,help)); 15 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 16 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 17 18 /* Test MatSetValues() and MatGetValues() */ 19 PetscCall(PetscOptionsGetInt(NULL,NULL,"-mat_block_size",&bs,NULL)); 20 PetscCall(PetscOptionsGetInt(NULL,NULL,"-mat_size",&m,NULL)); 21 22 M = m*bs*size; 23 PetscCall(MatCreateBAIJ(PETSC_COMM_WORLD,bs,PETSC_DECIDE,PETSC_DECIDE,M,M,PETSC_DECIDE,NULL,PETSC_DECIDE,NULL,&A)); 24 25 PetscCall(MatGetOwnershipRange(A,&start,&end)); 26 PetscCall(PetscOptionsHasName(NULL,NULL,"-column_oriented",&flg)); 27 if (flg) PetscCall(MatSetOption(A,MAT_ROW_ORIENTED,PETSC_FALSE)); 28 29 /* inproc assembly */ 30 for (row=start; row<end; row++) { 31 for (col=start; col<end; col++,data+=1) { 32 PetscCall(MatSetValues(A,1,&row,1,&col,&data,INSERT_VALUES)); 33 } 34 } 35 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 36 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 37 38 /* offproc assembly */ 39 data = 5.0; 40 row = (M+start-1)%M; 41 for (col=0; col<M; col++) { 42 PetscCall(MatSetValues(A,1,&row,1,&col,&data,ADD_VALUES)); 43 } 44 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 45 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 46 47 /* Test MatSetValuesBlocked() */ 48 PetscCall(PetscOptionsHasName(NULL,NULL,"-test_setvaluesblocked",&flg)); 49 if (flg) { 50 PetscScalar *bval; 51 row /= bs; 52 col = start/bs; 53 PetscCall(PetscMalloc1(bs*bs,&bval)); 54 k = 1; 55 /* row oriented - default */ 56 for (i=0; i<bs; i++) { 57 for (j=0; j<bs; j++) { 58 bval[i*bs+j] = (PetscScalar)k; k++; 59 } 60 } 61 PetscCall(MatSetValuesBlocked(A,1,&row,1,&col,bval,INSERT_VALUES)); 62 PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 63 PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 64 PetscCall(PetscFree(bval)); 65 } 66 67 PetscCall(MatView(A,PETSC_VIEWER_STDOUT_WORLD)); 68 PetscCall(MatDestroy(&A)); 69 PetscCall(PetscFinalize()); 70 return 0; 71 } 72 73 /*TEST 74 75 test: 76 suffix: 1 77 nsize: 3 78 args: -mat_block_size 2 -test_setvaluesblocked 79 80 test: 81 suffix: 2 82 nsize: 3 83 args: -mat_block_size 2 -test_setvaluesblocked -column_oriented 84 85 test: 86 suffix: 3 87 nsize: 3 88 args: -mat_block_size 1 -test_setvaluesblocked 89 90 test: 91 suffix: 4 92 nsize: 3 93 args: -mat_block_size 1 -test_setvaluesblocked -column_oriented 94 95 TEST*/ 96