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 PetscErrorCode ierr; 12c4762a1bSJed Brown 13c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; 14ffc4695bSBarry Smith ierr = MPI_Comm_size(PETSC_COMM_WORLD, &size);CHKERRMPI(ierr); 15*2c71b3e2SJacob Faibussowitsch PetscCheckFalse(size > 1,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Only coded for one process"); 16c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD, &A);CHKERRQ(ierr); 17c4762a1bSJed Brown ierr = MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, 1, 2);CHKERRQ(ierr); 18c4762a1bSJed Brown ierr = MatSetBlockSizes(A, 1, 2);CHKERRQ(ierr); 19c4762a1bSJed Brown ierr = MatSetType(A,MATAIJ);CHKERRQ(ierr); 20c4762a1bSJed Brown ierr = ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 2, 1, indices,PETSC_COPY_VALUES, &cmap);CHKERRQ(ierr); 21c4762a1bSJed Brown ierr = ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 1, 1, indices,PETSC_COPY_VALUES, &rmap);CHKERRQ(ierr); 22c4762a1bSJed Brown ierr = MatSetLocalToGlobalMapping(A, rmap, cmap);CHKERRQ(ierr); 23c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_WORLD, &B);CHKERRQ(ierr); 24c4762a1bSJed Brown ierr = MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, 1, 1);CHKERRQ(ierr); 25c4762a1bSJed Brown ierr = MatSetBlockSizes(A, 1, 1);CHKERRQ(ierr); 26c4762a1bSJed Brown ierr = MatSetType(B,MATAIJ);CHKERRQ(ierr); 27c4762a1bSJed Brown ierr = MatSetLocalToGlobalMapping(B, rmap, rmap);CHKERRQ(ierr); 28c4762a1bSJed Brown ierr = ISLocalToGlobalMappingDestroy(&rmap);CHKERRQ(ierr); 29c4762a1bSJed Brown ierr = ISLocalToGlobalMappingDestroy(&cmap);CHKERRQ(ierr); 30c4762a1bSJed Brown ierr = MatSetUp(A);CHKERRQ(ierr); 31c4762a1bSJed Brown ierr = MatSetUp(B);CHKERRQ(ierr); 32c4762a1bSJed Brown mats[0] = A; 33c4762a1bSJed Brown mats[1] = B; 34c4762a1bSJed Brown ierr = MatCreateNest(PETSC_COMM_WORLD, 1, NULL, 2, NULL, mats,&C);CHKERRQ(ierr); 35c4762a1bSJed Brown ierr = MatSetUp(C);CHKERRQ(ierr); 36c4762a1bSJed Brown ierr = MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 37c4762a1bSJed Brown ierr = MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 38c4762a1bSJed Brown ierr = MatView(C, NULL);CHKERRQ(ierr); 39c4762a1bSJed Brown ierr = MatDestroy(&C);CHKERRQ(ierr); 40c4762a1bSJed Brown ierr = MatDestroy(&B);CHKERRQ(ierr); 41c4762a1bSJed Brown ierr = MatDestroy(&A);CHKERRQ(ierr); 42c4762a1bSJed Brown ierr = PetscFinalize(); 43c4762a1bSJed Brown return ierr; 44c4762a1bSJed Brown } 45c4762a1bSJed Brown 46c4762a1bSJed Brown /*TEST 47c4762a1bSJed Brown 48c4762a1bSJed Brown test: 49c4762a1bSJed Brown 50c4762a1bSJed Brown TEST*/ 51