1c4762a1bSJed Brown static char help[] = "Tests MAIJ matrix for large DOF\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscdm.h> 4c4762a1bSJed Brown #include <petscdmda.h> 5c4762a1bSJed Brown 6c4762a1bSJed Brown int main(int argc,char *argv[]) 7c4762a1bSJed Brown { 8c4762a1bSJed Brown Mat M; 9c4762a1bSJed Brown Vec x,y; 10c4762a1bSJed Brown DM da,daf; 11c4762a1bSJed Brown 12*327415f7SBarry Smith PetscFunctionBeginUser; 139566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,0,help)); 149566063dSJacob Faibussowitsch PetscCall(DMDACreate2d(PETSC_COMM_WORLD, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE,DMDA_STENCIL_STAR,4,5,PETSC_DECIDE,PETSC_DECIDE,41,1,0,0,&da)); 159566063dSJacob Faibussowitsch PetscCall(DMSetFromOptions(da)); 169566063dSJacob Faibussowitsch PetscCall(DMSetUp(da)); 179566063dSJacob Faibussowitsch PetscCall(DMRefine(da,PETSC_COMM_WORLD,&daf)); 189566063dSJacob Faibussowitsch PetscCall(DMCreateInterpolation(da,daf,&M,NULL)); 199566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(da,&x)); 209566063dSJacob Faibussowitsch PetscCall(DMCreateGlobalVector(daf,&y)); 21c4762a1bSJed Brown 229566063dSJacob Faibussowitsch PetscCall(MatMult(M,x,y)); 239566063dSJacob Faibussowitsch PetscCall(MatMultTranspose(M,y,x)); 249566063dSJacob Faibussowitsch PetscCall(DMDestroy(&da)); 259566063dSJacob Faibussowitsch PetscCall(DMDestroy(&daf)); 269566063dSJacob Faibussowitsch PetscCall(VecDestroy(&x)); 279566063dSJacob Faibussowitsch PetscCall(VecDestroy(&y)); 289566063dSJacob Faibussowitsch PetscCall(MatDestroy(&M)); 299566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 30b122ec5aSJacob Faibussowitsch return 0; 31c4762a1bSJed Brown } 32c4762a1bSJed Brown 33c4762a1bSJed Brown /*TEST 34c4762a1bSJed Brown 35c4762a1bSJed Brown test: 36c4762a1bSJed Brown nsize: 2 37c4762a1bSJed Brown 38c4762a1bSJed Brown TEST*/ 39