26   Mat       Grad, Gradxy[2];  member
724   PetscCall(MatCreate(PETSC_COMM_WORLD, &user->Gradxy[0]));  in HyperbolicInitialize()
725   PetscCall(MatSetSizes(user->Gradxy[0], PETSC_DECIDE, PETSC_DECIDE, n, n));  in HyperbolicInitialize()
726   PetscCall(MatSetFromOptions(user->Gradxy[0]));  in HyperbolicInitialize()
727   PetscCall(MatMPIAIJSetPreallocation(user->Gradxy[0], 3, NULL, 3, NULL));  in HyperbolicInitialize()
728   PetscCall(MatSeqAIJSetPreallocation(user->Gradxy[0], 3, NULL));  in HyperbolicInitialize()
729   PetscCall(MatGetOwnershipRange(user->Gradxy[0], &istart, &iend));  in HyperbolicInitialize()
734     PetscCall(MatSetValues(user->Gradxy[0], 1, &i, 1, &j, &half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
736     PetscCall(MatSetValues(user->Gradxy[0], 1, &i, 1, &j, &neg_half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
737     PetscCall(MatSetValues(user->Gradxy[0], 1, &i, 1, &i, &zero, INSERT_VALUES));  in HyperbolicInitialize()
739   PetscCall(MatAssemblyBegin(user->Gradxy[0], MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
740   PetscCall(MatAssemblyEnd(user->Gradxy[0], MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
742   PetscCall(MatCreate(PETSC_COMM_WORLD, &user->Gradxy[1]));  in HyperbolicInitialize()
743   PetscCall(MatSetSizes(user->Gradxy[1], PETSC_DECIDE, PETSC_DECIDE, n, n));  in HyperbolicInitialize()
744   PetscCall(MatSetFromOptions(user->Gradxy[1]));  in HyperbolicInitialize()
745   PetscCall(MatMPIAIJSetPreallocation(user->Gradxy[1], 3, NULL, 3, NULL));  in HyperbolicInitialize()
746   PetscCall(MatSeqAIJSetPreallocation(user->Gradxy[1], 3, NULL));  in HyperbolicInitialize()
747   PetscCall(MatGetOwnershipRange(user->Gradxy[1], &istart, &iend));  in HyperbolicInitialize()
751     PetscCall(MatSetValues(user->Gradxy[1], 1, &i, 1, &j, &half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
753     PetscCall(MatSetValues(user->Gradxy[1], 1, &i, 1, &j, &neg_half_hinv, INSERT_VALUES));  in HyperbolicInitialize()
754     PetscCall(MatSetValues(user->Gradxy[1], 1, &i, 1, &i, &zero, INSERT_VALUES));  in HyperbolicInitialize()
756   PetscCall(MatAssemblyBegin(user->Gradxy[1], MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
757   PetscCall(MatAssemblyEnd(user->Gradxy[1], MAT_FINAL_ASSEMBLY));  in HyperbolicInitialize()
761   PetscCall(MatTranspose(user->Gradxy[0], MAT_INITIAL_MATRIX, &user->Divxy[0]));  in HyperbolicInitialize()
762   PetscCall(MatTranspose(user->Gradxy[1], MAT_INITIAL_MATRIX, &user->Divxy[1]));  in HyperbolicInitialize()
1134   PetscCall(MatDestroy(&user->Gradxy[0]));  in HyperbolicDestroy()
1135   PetscCall(MatDestroy(&user->Gradxy[1]));  in HyperbolicDestroy()