113   if (pcnn->DZ_IN) {  in PCDestroy_NN()
114     PetscCall(PetscFree(pcnn->DZ_IN[0]));  in PCDestroy_NN()
115     PetscCall(PetscFree(pcnn->DZ_IN));  in PCDestroy_NN()
175   pcnn->DZ_IN      = NULL;  in PCCreate_NN()
211   PetscScalar **DZ_IN; /* Must be initialized after memory allocation. */  in PCNNCreateCoarseMatrix()  local
223     PetscCall(PetscMalloc((n_neigh + 1) * sizeof(PetscScalar *), &pcnn->DZ_IN));  in PCNNCreateCoarseMatrix()
224     DZ_IN = pcnn->DZ_IN;  in PCNNCreateCoarseMatrix()
227     PetscCall(PetscMalloc((size_of_Z + 1) * sizeof(PetscScalar), &DZ_IN[0]));  in PCNNCreateCoarseMatrix()
231     DZ_IN[i]  = DZ_IN[i - 1] + n_shared[i - 1];  in PCNNCreateCoarseMatrix()
254 …PetscCallMPI(MPIU_Irecv(DZ_IN[i], n_shared[i], MPIU_SCALAR, nn, tag, PetscObjectComm((PetscObject)…  in PCNNCreateCoarseMatrix()
259   for (j = 0; j < n_shared[0]; j++) DZ_IN[0][j] = pcis->work_N[shared[0][j]];  in PCNNCreateCoarseMatrix()
265 …PetscCall(PCNNApplySchurToChunk(pc, n_shared[0], shared[0], DZ_IN[0], pcis->work_N, pcis->vec1_B, …  in PCNNCreateCoarseMatrix()
276 …for (k = 0; k < n_shared[ind]; k++) mat[ind * n_neigh + 0] += DZ_IN[ind][k] * pcis->work_N[shared[…  in PCNNCreateCoarseMatrix()
281 …PetscCall(PCNNApplySchurToChunk(pc, n_shared[j], shared[j], DZ_IN[j], pcis->work_N, pcis->vec1_B, …  in PCNNCreateCoarseMatrix()
284 …for (k = 0; k < n_shared[i]; k++) mat[i * n_neigh + j] += DZ_IN[i][k] * pcis->work_N[shared[i][k]];  in PCNNCreateCoarseMatrix()
531 …for (k = 0, value = 0.0; k < pcis->n_shared[0]; k++) value += pcnn->DZ_IN[0][k] * work_N[pcis->sha…  in PCNNBalancing()
547   for (k = 0; k < pcis->n_shared[0]; k++) work_N[pcis->shared[0][k]] = *lambda * pcnn->DZ_IN[0][k];  in PCNNBalancing()