1*c4762a1bSJed Brown static char help[] = "Test MatMatMult() and MatTransposeMatMult() for MPIAIJ and MPIDENSE matrices. \n\ 2*c4762a1bSJed Brown Sequential part of mpidense matrix allows changes made by MatSeqDenseSetLDA(). \n\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #include <petsc.h> 5*c4762a1bSJed Brown 6*c4762a1bSJed Brown int main(int argc, char ** argv) 7*c4762a1bSJed Brown { 8*c4762a1bSJed Brown Mat A, B, C, C1, seqB; 9*c4762a1bSJed Brown PetscMPIInt size; 10*c4762a1bSJed Brown PetscErrorCode ierr; 11*c4762a1bSJed Brown PetscInt i,ia[2] = { 0, 2 }, ja[2] = { 0, 1 }, lda = 4; 12*c4762a1bSJed Brown PetscScalar a[2] = { 1.0, 1.0 }, *data; 13*c4762a1bSJed Brown PetscBool flg; 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, (char*)0,help);if (ierr) return ierr; 16*c4762a1bSJed Brown ierr = MPI_Comm_size(PETSC_COMM_WORLD, &size);CHKERRQ(ierr); 17*c4762a1bSJed Brown if (size != 2) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_SUP,"Must use 2 processors"); 18*c4762a1bSJed Brown 19*c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD, &A);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = MatSetType(A, MATMPIAIJ);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = MatSetSizes(A, 1, 1, 2, 2);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = MatMPIAIJSetPreallocationCSR(A, ia, ja, a);CHKERRQ(ierr); 23*c4762a1bSJed Brown 24*c4762a1bSJed Brown ierr = PetscCalloc1(4 * lda,&data);CHKERRQ(ierr); 25*c4762a1bSJed Brown for (i = 0; i < 4; ++i) data[lda * i] = i * 1.0; 26*c4762a1bSJed Brown 27*c4762a1bSJed Brown ierr = MatCreateDense(PETSC_COMM_WORLD, 1, PETSC_DECIDE, 2, 4, data, &B);CHKERRQ(ierr); 28*c4762a1bSJed Brown ierr = MatDenseGetLocalMatrix(B, &seqB);CHKERRQ(ierr); 29*c4762a1bSJed Brown ierr = MatSeqDenseSetLDA(seqB, lda);CHKERRQ(ierr); 30*c4762a1bSJed Brown 31*c4762a1bSJed Brown /* Test MatMatMult() */ 32*c4762a1bSJed Brown ierr = MatMatMult(A, B, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &C);CHKERRQ(ierr); 33*c4762a1bSJed Brown ierr = MatMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C);CHKERRQ(ierr); 34*c4762a1bSJed Brown 35*c4762a1bSJed Brown ierr = MatMatMultEqual(A,B,C,10,&flg);CHKERRQ(ierr); 36*c4762a1bSJed Brown if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in MatMatMult() for C"); 37*c4762a1bSJed Brown 38*c4762a1bSJed Brown /* Test user-provided mpidense matrix product */ 39*c4762a1bSJed Brown ierr = MatDuplicate(C,MAT_COPY_VALUES,&C1);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = MatMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C1);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = MatMatMultEqual(A,B,C1,10,&flg);CHKERRQ(ierr); 42*c4762a1bSJed Brown if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in MatMatMult() for C1"); 43*c4762a1bSJed Brown 44*c4762a1bSJed Brown ierr = MatDestroy(&C1);CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 46*c4762a1bSJed Brown 47*c4762a1bSJed Brown /* Test MatTransposeMatMult() */ 48*c4762a1bSJed Brown ierr = MatTransposeMatMult(A, B, MAT_INITIAL_MATRIX, PETSC_DEFAULT, &C);CHKERRQ(ierr); 49*c4762a1bSJed Brown ierr = MatTransposeMatMult(A, B, MAT_REUSE_MATRIX, PETSC_DEFAULT, &C);CHKERRQ(ierr); 50*c4762a1bSJed Brown 51*c4762a1bSJed Brown ierr = MatTransposeMatMultEqual(A,B,C,10,&flg);CHKERRQ(ierr); 52*c4762a1bSJed Brown if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"Error in MatTransposeMatMult()"); 53*c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 54*c4762a1bSJed Brown 55*c4762a1bSJed Brown ierr = MatDestroy(&B);CHKERRQ(ierr); 56*c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 57*c4762a1bSJed Brown ierr = PetscFree(data);CHKERRQ(ierr); 58*c4762a1bSJed Brown 59*c4762a1bSJed Brown ierr = PetscFinalize(); 60*c4762a1bSJed Brown return ierr; 61*c4762a1bSJed Brown } 62*c4762a1bSJed Brown 63*c4762a1bSJed Brown /*TEST 64*c4762a1bSJed Brown 65*c4762a1bSJed Brown test: 66*c4762a1bSJed Brown suffix: 1 67*c4762a1bSJed Brown nsize: 2 68*c4762a1bSJed Brown output_file: output/ex34.out 69*c4762a1bSJed Brown TEST*/ 70