1c4762a1bSJed Brown static char help[] = "Test MatCreateNest with block sizes.\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc, char **argv) 6c4762a1bSJed Brown { 7c4762a1bSJed Brown Mat A, B, C, mats[2]; 8c4762a1bSJed Brown ISLocalToGlobalMapping cmap, rmap; 9c4762a1bSJed Brown const PetscInt indices[1] = {0}; 10c4762a1bSJed Brown PetscMPIInt size; 11c4762a1bSJed Brown 12*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscInitialize(&argc, &argv, NULL, help)); 135f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 142c71b3e2SJacob Faibussowitsch PetscCheckFalse(size > 1,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Only coded for one process"); 155f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD, &A)); 165f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, 1, 2)); 175f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetBlockSizes(A, 1, 2)); 185f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(A,MATAIJ)); 195f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 2, 1, indices,PETSC_COPY_VALUES, &cmap)); 205f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 1, 1, indices,PETSC_COPY_VALUES, &rmap)); 215f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetLocalToGlobalMapping(A, rmap, cmap)); 225f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD, &B)); 235f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, 1, 1)); 245f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetBlockSizes(A, 1, 1)); 255f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(B,MATAIJ)); 265f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetLocalToGlobalMapping(B, rmap, rmap)); 275f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingDestroy(&rmap)); 285f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingDestroy(&cmap)); 295f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(A)); 305f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(B)); 31c4762a1bSJed Brown mats[0] = A; 32c4762a1bSJed Brown mats[1] = B; 335f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreateNest(PETSC_COMM_WORLD, 1, NULL, 2, NULL, mats,&C)); 345f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(C)); 355f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 365f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 375f80ce2aSJacob Faibussowitsch CHKERRQ(MatView(C, NULL)); 385f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&C)); 395f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&B)); 405f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&A)); 41*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscFinalize()); 42*b122ec5aSJacob Faibussowitsch return 0; 43c4762a1bSJed Brown } 44c4762a1bSJed Brown 45c4762a1bSJed Brown /*TEST 46c4762a1bSJed Brown 47c4762a1bSJed Brown test: 48c4762a1bSJed Brown 49c4762a1bSJed Brown TEST*/ 50