1*c4762a1bSJed Brown static char help[] = "Test MatCreateNest with block sizes.\n"; 2*c4762a1bSJed Brown 3*c4762a1bSJed Brown #include <petscmat.h> 4*c4762a1bSJed Brown 5*c4762a1bSJed Brown int main(int argc, char **argv) 6*c4762a1bSJed Brown { 7*c4762a1bSJed Brown Mat A, B, C, mats[2]; 8*c4762a1bSJed Brown ISLocalToGlobalMapping cmap, rmap; 9*c4762a1bSJed Brown const PetscInt indices[1] = {0}; 10*c4762a1bSJed Brown PetscMPIInt size; 11*c4762a1bSJed Brown PetscErrorCode ierr; 12*c4762a1bSJed Brown 13*c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; 14*c4762a1bSJed Brown ierr = MPI_Comm_size(PETSC_COMM_WORLD, &size);CHKERRQ(ierr); 15*c4762a1bSJed Brown if (size > 1) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Only coded for one process"); 16*c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD, &A);CHKERRQ(ierr); 17*c4762a1bSJed Brown ierr = MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, 1, 2);CHKERRQ(ierr); 18*c4762a1bSJed Brown ierr = MatSetBlockSizes(A, 1, 2);CHKERRQ(ierr); 19*c4762a1bSJed Brown ierr = MatSetType(A,MATAIJ);CHKERRQ(ierr); 20*c4762a1bSJed Brown ierr = ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 2, 1, indices,PETSC_COPY_VALUES, &cmap);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 1, 1, indices,PETSC_COPY_VALUES, &rmap);CHKERRQ(ierr); 22*c4762a1bSJed Brown ierr = MatSetLocalToGlobalMapping(A, rmap, cmap);CHKERRQ(ierr); 23*c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD, &B);CHKERRQ(ierr); 24*c4762a1bSJed Brown ierr = MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, 1, 1);CHKERRQ(ierr); 25*c4762a1bSJed Brown ierr = MatSetBlockSizes(A, 1, 1);CHKERRQ(ierr); 26*c4762a1bSJed Brown ierr = MatSetType(B,MATAIJ);CHKERRQ(ierr); 27*c4762a1bSJed Brown ierr = MatSetLocalToGlobalMapping(B, rmap, rmap);CHKERRQ(ierr); 28*c4762a1bSJed Brown ierr = ISLocalToGlobalMappingDestroy(&rmap);CHKERRQ(ierr); 29*c4762a1bSJed Brown ierr = ISLocalToGlobalMappingDestroy(&cmap);CHKERRQ(ierr); 30*c4762a1bSJed Brown ierr = MatSetUp(A);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = MatSetUp(B);CHKERRQ(ierr); 32*c4762a1bSJed Brown mats[0] = A; 33*c4762a1bSJed Brown mats[1] = B; 34*c4762a1bSJed Brown ierr = MatCreateNest(PETSC_COMM_WORLD, 1, NULL, 2, NULL, mats,&C);CHKERRQ(ierr); 35*c4762a1bSJed Brown ierr = MatSetUp(C);CHKERRQ(ierr); 36*c4762a1bSJed Brown ierr = MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 37*c4762a1bSJed Brown ierr = MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 38*c4762a1bSJed Brown ierr = MatView(C, NULL);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = MatDestroy(&B);CHKERRQ(ierr); 41*c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 42*c4762a1bSJed Brown ierr = PetscFinalize(); 43*c4762a1bSJed Brown return ierr; 44*c4762a1bSJed Brown } 45*c4762a1bSJed Brown 46*c4762a1bSJed Brown /*TEST 47*c4762a1bSJed Brown 48*c4762a1bSJed Brown test: 49*c4762a1bSJed Brown 50*c4762a1bSJed Brown TEST*/ 51