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 PetscScalar v; 12c4762a1bSJed Brown Vec yy; 13c4762a1bSJed Brown 14*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&args,(char*)0,help)); 15*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-col",&col,NULL)); 16c4762a1bSJed Brown 17*9566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 18*9566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 19c4762a1bSJed Brown n = 2*size; 20c4762a1bSJed Brown 21c4762a1bSJed Brown /* create the matrix for the five point stencil, YET AGAIN*/ 22*9566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&C)); 23*9566063dSJacob Faibussowitsch PetscCall(MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,m*n,m*n)); 24*9566063dSJacob Faibussowitsch PetscCall(MatSetFromOptions(C)); 25*9566063dSJacob Faibussowitsch PetscCall(MatSeqAIJSetPreallocation(C,5,NULL)); 26*9566063dSJacob Faibussowitsch PetscCall(MatMPIAIJSetPreallocation(C,5,NULL,5,NULL)); 27*9566063dSJacob Faibussowitsch PetscCall(MatSetUp(C)); 28c4762a1bSJed Brown 29c4762a1bSJed Brown for (i=0; i<m; i++) { 30c4762a1bSJed Brown for (j=2*rank; j<2*rank+2; j++) { 31c4762a1bSJed Brown v = -1.0; Ii = j + n*i; 32*9566063dSJacob Faibussowitsch if (i>0) {J = Ii - n; PetscCall(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES));} 33*9566063dSJacob Faibussowitsch if (i<m-1) {J = Ii + n; PetscCall(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES));} 34*9566063dSJacob Faibussowitsch if (j>0) {J = Ii - 1; PetscCall(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES));} 35*9566063dSJacob Faibussowitsch if (j<n-1) {J = Ii + 1; PetscCall(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES));} 36*9566063dSJacob Faibussowitsch v = 4.0; PetscCall(MatSetValues(C,1,&Ii,1,&Ii,&v,INSERT_VALUES)); 37c4762a1bSJed Brown } 38c4762a1bSJed Brown } 39*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 40*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 41*9566063dSJacob Faibussowitsch PetscCall(MatView(C,PETSC_VIEWER_STDOUT_WORLD)); 42c4762a1bSJed Brown 43*9566063dSJacob Faibussowitsch PetscCall(MatCreateVecs(C,NULL,&yy)); 44*9566063dSJacob Faibussowitsch PetscCall(VecSetFromOptions(yy)); 45c4762a1bSJed Brown 46*9566063dSJacob Faibussowitsch PetscCall(MatGetColumnVector(C,yy,col)); 47c4762a1bSJed Brown 48*9566063dSJacob Faibussowitsch PetscCall(VecView(yy,PETSC_VIEWER_STDOUT_WORLD)); 49c4762a1bSJed Brown 50*9566063dSJacob Faibussowitsch PetscCall(VecDestroy(&yy)); 51*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 52*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 53b122ec5aSJacob Faibussowitsch return 0; 54c4762a1bSJed Brown } 55c4762a1bSJed Brown 56c4762a1bSJed Brown /*TEST 57c4762a1bSJed Brown 58c4762a1bSJed Brown test: 59c4762a1bSJed Brown nsize: 3 60c4762a1bSJed Brown args: -col 7 61c4762a1bSJed Brown 62c4762a1bSJed Brown test: 63c4762a1bSJed Brown suffix: dense 64c4762a1bSJed Brown nsize: 3 65a5225ed3SStefano Zampini args: -col 7 -mat_type dense -vec_type {{mpi standard}} 66a5225ed3SStefano Zampini filter: grep -v type 67a5225ed3SStefano Zampini 68a5225ed3SStefano Zampini test: 69a5225ed3SStefano Zampini requires: cuda 70a5225ed3SStefano Zampini suffix: dense_cuda 71a5225ed3SStefano Zampini nsize: 3 72a5225ed3SStefano Zampini output_file: output/ex60_dense.out 73a5225ed3SStefano Zampini args: -col 7 -mat_type {{mpidense mpidensecuda}} -vec_type {{mpi standard cuda mpicuda}} 74a5225ed3SStefano Zampini filter: grep -v type 75c4762a1bSJed Brown 76c4762a1bSJed Brown TEST*/ 77