1 static char help[] = "Test interface of Elemental. \n\n"; 2 3 #include <petscmat.h> 4 5 int main(int argc, char **args) 6 { 7 Mat C, Caij; 8 PetscInt i, j, m = 5, n, nrows, ncols; 9 const PetscInt *rows, *cols; 10 IS isrows, iscols; 11 PetscBool flg, Test_MatMatMult = PETSC_FALSE, mats_view = PETSC_FALSE; 12 PetscScalar *v; 13 PetscMPIInt rank, size; 14 15 PetscFunctionBeginUser; 16 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 17 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 18 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 19 PetscCall(PetscOptionsHasName(NULL, NULL, "-mats_view", &mats_view)); 20 21 /* Get local block or element size*/ 22 PetscCall(PetscOptionsGetInt(NULL, NULL, "-m", &m, NULL)); 23 n = m; 24 PetscCall(PetscOptionsGetInt(NULL, NULL, "-n", &n, NULL)); 25 26 PetscCall(MatCreate(PETSC_COMM_WORLD, &C)); 27 PetscCall(MatSetSizes(C, m, n, PETSC_DECIDE, PETSC_DECIDE)); 28 PetscCall(MatSetType(C, MATELEMENTAL)); 29 PetscCall(MatSetFromOptions(C)); 30 PetscCall(MatSetUp(C)); 31 32 PetscCall(PetscOptionsHasName(NULL, NULL, "-row_oriented", &flg)); 33 if (flg) PetscCall(MatSetOption(C, MAT_ROW_ORIENTED, PETSC_TRUE)); 34 PetscCall(MatGetOwnershipIS(C, &isrows, &iscols)); 35 PetscCall(PetscOptionsHasName(NULL, NULL, "-Cexp_view_ownership", &flg)); 36 if (flg) { /* View ownership of explicit C */ 37 IS tmp; 38 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Ownership of explicit C:\n")); 39 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Row index set:\n")); 40 PetscCall(ISOnComm(isrows, PETSC_COMM_WORLD, PETSC_USE_POINTER, &tmp)); 41 PetscCall(ISView(tmp, PETSC_VIEWER_STDOUT_WORLD)); 42 PetscCall(ISDestroy(&tmp)); 43 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Column index set:\n")); 44 PetscCall(ISOnComm(iscols, PETSC_COMM_WORLD, PETSC_USE_POINTER, &tmp)); 45 PetscCall(ISView(tmp, PETSC_VIEWER_STDOUT_WORLD)); 46 PetscCall(ISDestroy(&tmp)); 47 } 48 49 /* Set local matrix entries */ 50 PetscCall(ISGetLocalSize(isrows, &nrows)); 51 PetscCall(ISGetIndices(isrows, &rows)); 52 PetscCall(ISGetLocalSize(iscols, &ncols)); 53 PetscCall(ISGetIndices(iscols, &cols)); 54 PetscCall(PetscMalloc1(nrows * ncols, &v)); 55 for (i = 0; i < nrows; i++) { 56 for (j = 0; j < ncols; j++) { 57 /*v[i*ncols+j] = (PetscReal)(rank);*/ 58 v[i * ncols + j] = (PetscReal)(rank * 10000 + 100 * rows[i] + cols[j]); 59 } 60 } 61 PetscCall(MatSetValues(C, nrows, rows, ncols, cols, v, INSERT_VALUES)); 62 PetscCall(ISRestoreIndices(isrows, &rows)); 63 PetscCall(ISRestoreIndices(iscols, &cols)); 64 PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 65 PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 66 67 /* Test MatView() */ 68 if (mats_view) PetscCall(MatView(C, PETSC_VIEWER_STDOUT_WORLD)); 69 70 /* Test MatMissingDiagonal() */ 71 PetscCall(MatMissingDiagonal(C, &flg, NULL)); 72 PetscCheck(!flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "MatMissingDiagonal() did not return false!"); 73 74 /* Set unowned matrix entries - add subdiagonals and diagonals from proc[0] */ 75 if (rank == 0) { 76 PetscInt M, N, cols[2]; 77 PetscCall(MatGetSize(C, &M, &N)); 78 for (i = 0; i < M; i++) { 79 cols[0] = i; 80 v[0] = i + 0.5; 81 cols[1] = i - 1; 82 v[1] = 0.5; 83 if (i) { 84 PetscCall(MatSetValues(C, 1, &i, 2, cols, v, ADD_VALUES)); 85 } else { 86 PetscCall(MatSetValues(C, 1, &i, 1, &i, v, ADD_VALUES)); 87 } 88 } 89 } 90 PetscCall(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 91 PetscCall(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 92 93 /* Test MatMult() */ 94 PetscCall(MatComputeOperator(C, MATAIJ, &Caij)); 95 PetscCall(MatMultEqual(C, Caij, 5, &flg)); 96 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "C != Caij. MatMultEqual() fails"); 97 PetscCall(MatMultTransposeEqual(C, Caij, 5, &flg)); 98 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "C != Caij. MatMultTransposeEqual() fails"); 99 100 /* Test MatMultAdd() and MatMultTransposeAddEqual() */ 101 PetscCall(MatMultAddEqual(C, Caij, 5, &flg)); 102 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "C != Caij. MatMultAddEqual() fails"); 103 PetscCall(MatMultTransposeAddEqual(C, Caij, 5, &flg)); 104 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "C != Caij. MatMultTransposeAddEqual() fails"); 105 106 /* Test MatMatMult() */ 107 PetscCall(PetscOptionsHasName(NULL, NULL, "-test_matmatmult", &Test_MatMatMult)); 108 if (Test_MatMatMult) { 109 Mat CCelem, CCaij; 110 PetscCall(MatMatMult(C, C, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &CCelem)); 111 PetscCall(MatMatMult(Caij, Caij, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &CCaij)); 112 PetscCall(MatMultEqual(CCelem, CCaij, 5, &flg)); 113 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "CCelem != CCaij. MatMatMult() fails"); 114 PetscCall(MatDestroy(&CCaij)); 115 PetscCall(MatDestroy(&CCelem)); 116 } 117 118 PetscCall(PetscFree(v)); 119 PetscCall(ISDestroy(&isrows)); 120 PetscCall(ISDestroy(&iscols)); 121 PetscCall(MatDestroy(&C)); 122 PetscCall(MatDestroy(&Caij)); 123 PetscCall(PetscFinalize()); 124 return 0; 125 } 126 127 /*TEST 128 129 test: 130 nsize: 2 131 requires: elemental 132 args: -mat_type elemental -m 2 -n 3 133 134 test: 135 suffix: 2 136 nsize: 6 137 requires: elemental 138 args: -mat_type elemental -m 2 -n 2 139 140 test: 141 suffix: 3 142 nsize: 6 143 requires: elemental 144 args: -mat_type elemental -m 2 -n 2 -test_matmatmult 145 output_file: output/ex38_2.out 146 147 TEST*/ 148