1 static char help[] = "Test MatMatMult() and MatTransposeMatMult() for MPIAIJ and MPIDENSE matrices. \n\ 2 Sequential part of mpidense matrix allows changes made by MatDenseSetLDA(). \n\n"; 3 4 #include <petsc.h> 5 6 int main(int argc, char **argv) { 7 Mat A, B, C, C1; 8 PetscMPIInt size; 9 PetscInt i, ia[2] = {0, 2}, ja[2] = {0, 1}, lda = 4; 10 PetscScalar a[2] = {1.0, 1.0}, *data; 11 PetscBool flg; 12 13 PetscFunctionBeginUser; 14 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 15 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 16 PetscCheck(size == 2, PETSC_COMM_WORLD, PETSC_ERR_WRONG_MPI_SIZE, "Must use 2 processors"); 17 18 PetscCall(MatCreate(PETSC_COMM_WORLD, &A)); 19 PetscCall(MatSetType(A, MATMPIAIJ)); 20 PetscCall(MatSetSizes(A, 1, 1, 2, 2)); 21 PetscCall(MatMPIAIJSetPreallocationCSR(A, ia, ja, a)); 22 23 PetscCall(PetscCalloc1(4 * lda, &data)); 24 for (i = 0; i < 4; ++i) data[lda * i] = i * 1.0; 25 26 PetscCall(MatCreateDense(PETSC_COMM_WORLD, 1, PETSC_DECIDE, 2, 4, data, &B)); 27 PetscCall(MatSetOptionsPrefix(B, "b_")); 28 PetscCall(MatSetFromOptions(B)); 29 PetscCall(MatDenseSetLDA(B, lda)); 30 31 /* Test MatMatMult() */ 32 PetscCall(MatMatMult(A, B, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &C)); 33 PetscCall(MatMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C)); 34 35 PetscCall(MatMatMultEqual(A, B, C, 10, &flg)); 36 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "Error in MatMatMult() for C"); 37 38 /* Test user-provided mpidense matrix product */ 39 PetscCall(MatDuplicate(C, MAT_COPY_VALUES, &C1)); 40 PetscCall(MatMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C1)); 41 PetscCall(MatMatMultEqual(A, B, C1, 10, &flg)); 42 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "Error in MatMatMult() for C1"); 43 44 PetscCall(MatDestroy(&C1)); 45 PetscCall(MatDestroy(&C)); 46 47 /* Test MatTransposeMatMult() */ 48 PetscCall(MatTransposeMatMult(A, B, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &C)); 49 PetscCall(MatTransposeMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C)); 50 51 PetscCall(MatTransposeMatMultEqual(A, B, C, 10, &flg)); 52 PetscCheck(flg, PETSC_COMM_SELF, PETSC_ERR_ARG_NOTSAMETYPE, "Error in MatTransposeMatMult()"); 53 PetscCall(MatDestroy(&C)); 54 55 PetscCall(MatDestroy(&B)); 56 PetscCall(MatDestroy(&A)); 57 PetscCall(PetscFree(data)); 58 59 PetscCall(PetscFinalize()); 60 return 0; 61 } 62 63 /*TEST 64 65 test: 66 suffix: 1 67 nsize: 2 68 output_file: output/ex34.out 69 70 test: 71 suffix: 1_cuda 72 requires: cuda 73 nsize: 2 74 args: -b_mat_type mpidensecuda 75 output_file: output/ex34.out 76 TEST*/ 77