109   PetscCall(MatDestroy(&pcnn->coarse_mat));  in PCDestroy_NN()
171   pcnn->coarse_mat = NULL;  in PCCreate_NN()
312     PetscCall(MatCreate(PetscObjectComm((PetscObject)pc), &pcnn->coarse_mat));  in PCNNCreateCoarseMatrix()
313     PetscCall(MatSetSizes(pcnn->coarse_mat, 1, 1, size, size));  in PCNNCreateCoarseMatrix()
314     PetscCall(MatSetType(pcnn->coarse_mat, MATAIJ));  in PCNNCreateCoarseMatrix()
315     PetscCall(MatSeqAIJSetPreallocation(pcnn->coarse_mat, 1, NULL));  in PCNNCreateCoarseMatrix()
316     PetscCall(MatMPIAIJSetPreallocation(pcnn->coarse_mat, 1, NULL, n_neigh, NULL));  in PCNNCreateCoarseMatrix()
317     PetscCall(MatSetOption(pcnn->coarse_mat, MAT_NEW_NONZERO_ALLOCATION_ERR, PETSC_FALSE));  in PCNNCreateCoarseMatrix()
318     PetscCall(MatSetOption(pcnn->coarse_mat, MAT_NEW_NONZERO_LOCATION_ERR, PETSC_FALSE));  in PCNNCreateCoarseMatrix()
319     PetscCall(MatSetValues(pcnn->coarse_mat, n_neigh, neigh, n_neigh, neigh, mat, ADD_VALUES));  in PCNNCreateCoarseMatrix()
320     PetscCall(MatAssemblyBegin(pcnn->coarse_mat, MAT_FINAL_ASSEMBLY));  in PCNNCreateCoarseMatrix()
321     PetscCall(MatAssemblyEnd(pcnn->coarse_mat, MAT_FINAL_ASSEMBLY));  in PCNNCreateCoarseMatrix()
330       PetscCall(MatZeroRows(pcnn->coarse_mat, 0, NULL, one, NULL, NULL));  in PCNNCreateCoarseMatrix()
333       PetscCall(MatZeroRows(pcnn->coarse_mat, 1, &row, one, NULL, NULL));  in PCNNCreateCoarseMatrix()
345     PetscCall(KSPSetOperators(pcnn->ksp_coarse, pcnn->coarse_mat, pcnn->coarse_mat));  in PCNNCreateCoarseMatrix()
369       PetscCall(MatView(pcnn->coarse_mat, viewer));  in PCNNCreateCoarseMatrix()