26   Mat       Grad, Gradxy[2];  member
400   PetscCall(MatMult(user->Grad, X, user->uiwork[i]));  in StateMatBlockMultTranspose()
439     PetscCall(MatMult(user->Grad, user->yiwork[i], user->uiwork[i]));  in DesignMatMultTranspose()
698   PetscCall(MatCreate(PETSC_COMM_WORLD, &user->Grad));  in HyperbolicInitialize()
699   PetscCall(MatSetSizes(user->Grad, PETSC_DECIDE, PETSC_DECIDE, 2 * n, n));  in HyperbolicInitialize()
700   PetscCall(MatSetFromOptions(user->Grad));  in HyperbolicInitialize()
701   PetscCall(MatMPIAIJSetPreallocation(user->Grad, 3, NULL, 3, NULL));  in HyperbolicInitialize()
702   PetscCall(MatSeqAIJSetPreallocation(user->Grad, 3, NULL));  in HyperbolicInitialize()
703   PetscCall(MatGetOwnershipRange(user->Grad, &istart, &iend));  in HyperbolicInitialize()
709       PetscCall(MatSetValues(user->Grad, 1, &i, 1, &j, &half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
711       PetscCall(MatSetValues(user->Grad, 1, &i, 1, &j, &neg_half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
715       PetscCall(MatSetValues(user->Grad, 1, &i, 1, &j, &half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
717       PetscCall(MatSetValues(user->Grad, 1, &i, 1, &j, &neg_half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
721   PetscCall(MatAssemblyBegin(user->Grad, MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
722   PetscCall(MatAssemblyEnd(user->Grad, MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
760   PetscCall(MatTranspose(user->Grad, MAT_INITIAL_MATRIX, &user->Div));  in HyperbolicInitialize()
1123   PetscCall(MatDestroy(&user->Grad));  in HyperbolicDestroy()