1 2 static char help[] = "Tests MatGetRowIJ for SeqAIJ, SeqBAIJ and SeqSBAIJ\n\n"; 3 4 #include <petscmat.h> 5 6 PetscErrorCode DumpCSR(Mat A, PetscInt shift, PetscBool symmetric, PetscBool compressed) 7 { 8 MatType type; 9 PetscInt i, j, nr, bs = 1; 10 const PetscInt *ia, *ja; 11 PetscBool done, isseqbaij, isseqsbaij; 12 13 PetscFunctionBeginUser; 14 PetscCall(PetscObjectBaseTypeCompare((PetscObject)A, MATSEQBAIJ, &isseqbaij)); 15 PetscCall(PetscObjectBaseTypeCompare((PetscObject)A, MATSEQSBAIJ, &isseqsbaij)); 16 if (isseqbaij || isseqsbaij) PetscCall(MatGetBlockSize(A, &bs)); 17 PetscCall(MatGetType(A, &type)); 18 PetscCall(MatGetRowIJ(A, shift, symmetric, compressed, &nr, &ia, &ja, &done)); 19 PetscCall(PetscPrintf(PETSC_COMM_SELF, "===========================================================\n")); 20 PetscCall(PetscPrintf(PETSC_COMM_SELF, "CSR for %s: shift %" PetscInt_FMT " symmetric %" PetscInt_FMT " compressed %" PetscInt_FMT "\n", type, shift, (PetscInt)symmetric, (PetscInt)compressed)); 21 for (i = 0; i < nr; i++) { 22 PetscCall(PetscPrintf(PETSC_COMM_SELF, "%" PetscInt_FMT ":", i + shift)); 23 for (j = ia[i]; j < ia[i + 1]; j++) PetscCall(PetscPrintf(PETSC_COMM_SELF, " %" PetscInt_FMT, ja[j - shift])); 24 PetscCall(PetscPrintf(PETSC_COMM_SELF, "\n")); 25 } 26 PetscCall(MatRestoreRowIJ(A, shift, symmetric, compressed, &nr, &ia, &ja, &done)); 27 PetscFunctionReturn(0); 28 } 29 30 int main(int argc, char **args) 31 { 32 Mat A, B, C; 33 PetscInt i, j, k, m = 3, n = 3, bs = 1; 34 PetscMPIInt size; 35 36 PetscFunctionBeginUser; 37 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 38 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 39 PetscCheck(size == 1, PETSC_COMM_WORLD, PETSC_ERR_WRONG_MPI_SIZE, "This is a uniprocessor example only!"); 40 PetscCall(PetscOptionsGetInt(NULL, NULL, "-m", &m, NULL)); 41 PetscCall(PetscOptionsGetInt(NULL, NULL, "-n", &n, NULL)); 42 PetscCall(PetscOptionsGetInt(NULL, NULL, "-bs", &bs, NULL)); 43 /* adjust sizes by block size */ 44 if (m % bs) m += bs - m % bs; 45 if (n % bs) n += bs - n % bs; 46 47 PetscCall(MatCreate(PETSC_COMM_SELF, &A)); 48 PetscCall(MatSetSizes(A, m * n, m * n, PETSC_DECIDE, PETSC_DECIDE)); 49 PetscCall(MatSetBlockSize(A, bs)); 50 PetscCall(MatSetType(A, MATSEQAIJ)); 51 PetscCall(MatSetUp(A)); 52 PetscCall(MatCreate(PETSC_COMM_SELF, &B)); 53 PetscCall(MatSetSizes(B, m * n, m * n, PETSC_DECIDE, PETSC_DECIDE)); 54 PetscCall(MatSetBlockSize(B, bs)); 55 PetscCall(MatSetType(B, MATSEQBAIJ)); 56 PetscCall(MatSetUp(B)); 57 PetscCall(MatCreate(PETSC_COMM_SELF, &C)); 58 PetscCall(MatSetSizes(C, m * n, m * n, PETSC_DECIDE, PETSC_DECIDE)); 59 PetscCall(MatSetBlockSize(C, bs)); 60 PetscCall(MatSetType(C, MATSEQSBAIJ)); 61 PetscCall(MatSetUp(C)); 62 PetscCall(MatSetOption(C, MAT_IGNORE_LOWER_TRIANGULAR, PETSC_TRUE)); 63 64 for (i = 0; i < m; i++) { 65 for (j = 0; j < n; j++) { 66 PetscScalar v = -1.0; 67 PetscInt Ii = j + n * i, J; 68 J = Ii - n; 69 if (J >= 0) { 70 PetscCall(MatSetValues(A, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 71 PetscCall(MatSetValues(B, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 72 PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 73 } 74 J = Ii + n; 75 if (J < m * n) { 76 PetscCall(MatSetValues(A, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 77 PetscCall(MatSetValues(B, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 78 PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 79 } 80 J = Ii - 1; 81 if (J >= 0) { 82 PetscCall(MatSetValues(A, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 83 PetscCall(MatSetValues(B, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 84 PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 85 } 86 J = Ii + 1; 87 if (J < m * n) { 88 PetscCall(MatSetValues(A, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 89 PetscCall(MatSetValues(B, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 90 PetscCall(MatSetValues(C, 1, &Ii, 1, &J, &v, INSERT_VALUES)); 91 } 92 v = 4.0; 93 PetscCall(MatSetValues(A, 1, &Ii, 1, &Ii, &v, INSERT_VALUES)); 94 PetscCall(MatSetValues(B, 1, &Ii, 1, &Ii, &v, INSERT_VALUES)); 95 PetscCall(MatSetValues(C, 1, &Ii, 1, &Ii, &v, INSERT_VALUES)); 96 } 97 } 98 PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY)); 99 PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY)); 100 PetscCall(MatAssemblyBegin(B, MAT_FINAL_ASSEMBLY)); 101 PetscCall(MatAssemblyEnd(B, MAT_FINAL_ASSEMBLY)); 102 PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 103 PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 104 105 /* test MatGetRowIJ for the three Mat types */ 106 PetscCall(MatView(A, NULL)); 107 PetscCall(MatView(B, NULL)); 108 PetscCall(MatView(C, NULL)); 109 for (i = 0; i < 2; i++) { 110 PetscInt shift = i; 111 for (j = 0; j < 2; j++) { 112 PetscBool symmetric = ((j > 0) ? PETSC_FALSE : PETSC_TRUE); 113 for (k = 0; k < 2; k++) { 114 PetscBool compressed = ((k > 0) ? PETSC_FALSE : PETSC_TRUE); 115 PetscCall(DumpCSR(A, shift, symmetric, compressed)); 116 PetscCall(DumpCSR(B, shift, symmetric, compressed)); 117 PetscCall(DumpCSR(C, shift, symmetric, compressed)); 118 } 119 } 120 } 121 PetscCall(MatDestroy(&A)); 122 PetscCall(MatDestroy(&B)); 123 PetscCall(MatDestroy(&C)); 124 PetscCall(PetscFinalize()); 125 return 0; 126 } 127 128 /*TEST 129 130 test: 131 132 test: 133 suffix: 2 134 args: -bs 2 135 136 TEST*/ 137