1c4762a1bSJed Brown static char help[] = "Testing MatCreateMPIAIJSumSeqAIJ().\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 6d71ae5a4SJacob Faibussowitsch { 7c4762a1bSJed Brown Mat A, B; 8c4762a1bSJed Brown MatScalar a[1], alpha; 9c4762a1bSJed Brown PetscMPIInt size, rank; 10c4762a1bSJed Brown PetscInt m, n, i, col, prid; 11c4762a1bSJed Brown 12327415f7SBarry Smith PetscFunctionBeginUser; 13*c8025a54SPierre Jolivet PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 149566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 159566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 16c4762a1bSJed Brown prid = size; 179566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL, NULL, "-prid", &prid, NULL)); 18c4762a1bSJed Brown 19c4762a1bSJed Brown m = n = 10 * size; 209566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_SELF, &A)); 219566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A, PETSC_DETERMINE, PETSC_DETERMINE, m, n)); 229566063dSJacob Faibussowitsch PetscCall(MatSetType(A, MATSEQAIJ)); 239566063dSJacob Faibussowitsch PetscCall(MatSetUp(A)); 24c4762a1bSJed Brown 25c4762a1bSJed Brown a[0] = rank + 1; 26c4762a1bSJed Brown for (i = 0; i < m - rank; i++) { 27c4762a1bSJed Brown col = i + rank; 289566063dSJacob Faibussowitsch PetscCall(MatSetValues(A, 1, &i, 1, &col, a, INSERT_VALUES)); 29c4762a1bSJed Brown } 309566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY)); 319566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY)); 32c4762a1bSJed Brown 33c4762a1bSJed Brown if (rank == prid) { 349566063dSJacob Faibussowitsch PetscCall(PetscPrintf(PETSC_COMM_SELF, "[%d] A: \n", rank)); 359566063dSJacob Faibussowitsch PetscCall(MatView(A, PETSC_VIEWER_STDOUT_SELF)); 36c4762a1bSJed Brown } 37c4762a1bSJed Brown 38c4762a1bSJed Brown /* Test MatCreateMPIAIJSumSeqAIJ */ 399566063dSJacob Faibussowitsch PetscCall(MatCreateMPIAIJSumSeqAIJ(PETSC_COMM_WORLD, A, PETSC_DECIDE, PETSC_DECIDE, MAT_INITIAL_MATRIX, &B)); 40c4762a1bSJed Brown 41c4762a1bSJed Brown /* Test MAT_REUSE_MATRIX */ 42c4762a1bSJed Brown alpha = 0.1; 43c4762a1bSJed Brown for (i = 0; i < 3; i++) { 449566063dSJacob Faibussowitsch PetscCall(MatScale(A, alpha)); 459566063dSJacob Faibussowitsch PetscCall(MatCreateMPIAIJSumSeqAIJ(PETSC_COMM_WORLD, A, PETSC_DECIDE, PETSC_DECIDE, MAT_REUSE_MATRIX, &B)); 46c4762a1bSJed Brown } 479566063dSJacob Faibussowitsch PetscCall(MatView(B, PETSC_VIEWER_STDOUT_WORLD)); 489566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B)); 499566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A)); 509566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 51b122ec5aSJacob Faibussowitsch return 0; 52c4762a1bSJed Brown } 53c4762a1bSJed Brown 54c4762a1bSJed Brown /*TEST 55c4762a1bSJed Brown 56c4762a1bSJed Brown test: 57c4762a1bSJed Brown nsize: 3 588cc725e6SPierre Jolivet filter: grep -v " MPI process" 59c4762a1bSJed Brown 60c4762a1bSJed Brown test: 61c4762a1bSJed Brown suffix: 2 628cc725e6SPierre Jolivet filter: grep -v " MPI process" 63c4762a1bSJed Brown 64c4762a1bSJed Brown TEST*/ 65