1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests MatGetColumnVector()."; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscmat.h> 5c4762a1bSJed Brown 6c4762a1bSJed Brown int main(int argc,char **args) 7c4762a1bSJed Brown { 8c4762a1bSJed Brown Mat C; 9c4762a1bSJed Brown PetscInt i,j,m = 3,n = 2,Ii,J,col = 0; 10c4762a1bSJed Brown PetscMPIInt size,rank; 11c4762a1bSJed Brown PetscErrorCode ierr; 12c4762a1bSJed Brown PetscScalar v; 13c4762a1bSJed Brown Vec yy; 14c4762a1bSJed Brown 15c4762a1bSJed Brown ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 16c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-col",&col,NULL);CHKERRQ(ierr); 17c4762a1bSJed Brown 18c4762a1bSJed Brown ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 19c4762a1bSJed Brown ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 20c4762a1bSJed Brown n = 2*size; 21c4762a1bSJed Brown 22c4762a1bSJed Brown /* create the matrix for the five point stencil, YET AGAIN*/ 23c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD,&C);CHKERRQ(ierr); 24c4762a1bSJed Brown ierr = MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,m*n,m*n);CHKERRQ(ierr); 25c4762a1bSJed Brown ierr = MatSetFromOptions(C);CHKERRQ(ierr); 26c4762a1bSJed Brown ierr = MatSeqAIJSetPreallocation(C,5,NULL);CHKERRQ(ierr); 27c4762a1bSJed Brown ierr = MatMPIAIJSetPreallocation(C,5,NULL,5,NULL);CHKERRQ(ierr); 28c4762a1bSJed Brown ierr = MatSetUp(C);CHKERRQ(ierr); 29c4762a1bSJed Brown 30c4762a1bSJed Brown for (i=0; i<m; i++) { 31c4762a1bSJed Brown for (j=2*rank; j<2*rank+2; j++) { 32c4762a1bSJed Brown v = -1.0; Ii = j + n*i; 33c4762a1bSJed Brown if (i>0) {J = Ii - n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} 34c4762a1bSJed Brown if (i<m-1) {J = Ii + n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} 35c4762a1bSJed Brown if (j>0) {J = Ii - 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} 36c4762a1bSJed Brown if (j<n-1) {J = Ii + 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} 37c4762a1bSJed Brown v = 4.0; ierr = MatSetValues(C,1,&Ii,1,&Ii,&v,INSERT_VALUES);CHKERRQ(ierr); 38c4762a1bSJed Brown } 39c4762a1bSJed Brown } 40c4762a1bSJed Brown ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 41c4762a1bSJed Brown ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 42c4762a1bSJed Brown ierr = MatView(C,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 43c4762a1bSJed Brown 44*a5225ed3SStefano Zampini ierr = MatCreateVecs(C,NULL,&yy);CHKERRQ(ierr); 45c4762a1bSJed Brown ierr = VecSetFromOptions(yy);CHKERRQ(ierr); 46c4762a1bSJed Brown 47c4762a1bSJed Brown ierr = MatGetColumnVector(C,yy,col);CHKERRQ(ierr); 48c4762a1bSJed Brown 49c4762a1bSJed Brown ierr = VecView(yy,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 50c4762a1bSJed Brown 51c4762a1bSJed Brown ierr = VecDestroy(&yy);CHKERRQ(ierr); 52c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 53c4762a1bSJed Brown ierr = PetscFinalize(); 54c4762a1bSJed Brown return ierr; 55c4762a1bSJed Brown } 56c4762a1bSJed Brown 57c4762a1bSJed Brown 58c4762a1bSJed Brown /*TEST 59c4762a1bSJed Brown 60c4762a1bSJed Brown test: 61c4762a1bSJed Brown nsize: 3 62c4762a1bSJed Brown args: -col 7 63c4762a1bSJed Brown 64c4762a1bSJed Brown test: 65c4762a1bSJed Brown suffix: dense 66c4762a1bSJed Brown nsize: 3 67*a5225ed3SStefano Zampini args: -col 7 -mat_type dense -vec_type {{mpi standard}} 68*a5225ed3SStefano Zampini filter: grep -v type 69*a5225ed3SStefano Zampini 70*a5225ed3SStefano Zampini test: 71*a5225ed3SStefano Zampini requires: cuda 72*a5225ed3SStefano Zampini suffix: dense_cuda 73*a5225ed3SStefano Zampini nsize: 3 74*a5225ed3SStefano Zampini output_file: output/ex60_dense.out 75*a5225ed3SStefano Zampini args: -col 7 -mat_type {{mpidense mpidensecuda}} -vec_type {{mpi standard cuda mpicuda}} 76*a5225ed3SStefano Zampini filter: grep -v type 77c4762a1bSJed Brown 78c4762a1bSJed Brown TEST*/ 79