1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests MatSetValuesBlockedStencil() in 3d.\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscmat.h> 5c4762a1bSJed Brown #include <petscdm.h> 6c4762a1bSJed Brown #include <petscdmda.h> 7c4762a1bSJed Brown 8c4762a1bSJed Brown int main(int argc,char **argv) 9c4762a1bSJed Brown { 10c4762a1bSJed Brown PetscInt M = 3,N = 4,P = 2,s = 1,w = 2,i, m = PETSC_DECIDE,n = PETSC_DECIDE,p = PETSC_DECIDE; 11c4762a1bSJed Brown DM da; 12c4762a1bSJed Brown Mat mat; 13c4762a1bSJed Brown DMDAStencilType stencil_type = DMDA_STENCIL_BOX; 14c4762a1bSJed Brown PetscBool flg = PETSC_FALSE; 15c4762a1bSJed Brown MatStencil idx[2],idy[2]; 16c4762a1bSJed Brown PetscScalar *values; 17c4762a1bSJed Brown 18*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 19*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 20*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 21*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-P",&P,NULL)); 22*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 23*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 24*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-p",&p,NULL)); 25*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-s",&s,NULL)); 26*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-w",&w,NULL)); 27*9566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetBool(NULL,NULL,"-star",&flg,NULL)); 28c4762a1bSJed Brown if (flg) stencil_type = DMDA_STENCIL_STAR; 29c4762a1bSJed Brown 30c4762a1bSJed Brown /* Create distributed array and get vectors */ 31*9566063dSJacob Faibussowitsch PetscCall(DMDACreate3d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,stencil_type,M,N,P,m,n,p,w,s,0,0,0,&da)); 32*9566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 33*9566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 34*9566063dSJacob Faibussowitsch PetscCall(DMSetMatType(da,MATMPIBAIJ)); 35*9566063dSJacob Faibussowitsch PetscCall(DMCreateMatrix(da,&mat)); 36c4762a1bSJed Brown 37c4762a1bSJed Brown idx[0].i = 1; idx[0].j = 1; idx[0].k = 0; 38c4762a1bSJed Brown idx[1].i = 2; idx[1].j = 1; idx[1].k = 0; 39c4762a1bSJed Brown idy[0].i = 1; idy[0].j = 2; idy[0].k = 0; 40c4762a1bSJed Brown idy[1].i = 2; idy[1].j = 2; idy[1].k = 0; 41*9566063dSJacob Faibussowitsch PetscCall(PetscMalloc1(2*2*w*w,&values)); 42c4762a1bSJed Brown for (i=0; i<2*2*w*w; i++) values[i] = i; 43*9566063dSJacob Faibussowitsch PetscCall(MatSetValuesBlockedStencil(mat,2,idx,2,idy,values,INSERT_VALUES)); 44*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyBegin(mat,MAT_FINAL_ASSEMBLY)); 45*9566063dSJacob Faibussowitsch PetscCall(MatAssemblyEnd(mat,MAT_FINAL_ASSEMBLY)); 46c4762a1bSJed Brown 47c4762a1bSJed Brown /* Free memory */ 48*9566063dSJacob Faibussowitsch PetscCall(PetscFree(values)); 49*9566063dSJacob Faibussowitsch PetscCall(MatDestroy(&mat)); 50*9566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 51*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 52b122ec5aSJacob Faibussowitsch return 0; 53c4762a1bSJed Brown } 54