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