23 static PetscErrorCode RHSFunctionslow(TS ts, PetscReal t, Vec U, Vec F, AppCtx *ctx)  in RHSFunctionslow()  argument
29   PetscCall(VecGetArrayRead(U, &u));  in RHSFunctionslow()
32   PetscCall(VecRestoreArrayRead(U, &u));  in RHSFunctionslow()
37 static PetscErrorCode RHSFunctionfast(TS ts, PetscReal t, Vec U, Vec F, AppCtx *ctx)  in RHSFunctionfast()  argument
43   PetscCall(VecGetArrayRead(U, &u));  in RHSFunctionfast()
46   PetscCall(VecRestoreArrayRead(U, &u));  in RHSFunctionfast()
51 static PetscErrorCode IFunctionfast(TS ts, PetscReal t, Vec U, Vec Udot, Vec F, AppCtx *ctx)  in IFunctionfast()  argument
57   PetscCall(VecGetArrayRead(U, &u));  in IFunctionfast()
62   PetscCall(VecRestoreArrayRead(U, &u));  in IFunctionfast()
67 static PetscErrorCode IJacobianfast(TS ts, PetscReal t, Vec U, Vec Udot, PetscReal a, Mat A, Mat B,…  in IJacobianfast()  argument
74   PetscCall(VecGetArrayRead(U, &u));  in IJacobianfast()
77   PetscCall(VecRestoreArrayRead(U, &u));  in IJacobianfast()
91 static PetscErrorCode sol_true(PetscReal t, Vec U)  in sol_true()  argument
96   PetscCall(VecGetArray(U, &u));  in sol_true()
99   PetscCall(VecRestoreArray(U, &u));  in sol_true()
106   Vec          U;  /* solution will be stored here */  in main()  local
140   PetscCall(VecCreate(PETSC_COMM_WORLD, &U));  in main()
141   PetscCall(VecSetSizes(U, n, PETSC_DETERMINE));  in main()
142   PetscCall(VecSetFromOptions(U));  in main()
143   PetscCall(VecDuplicate(U, &Utrue));  in main()
144   PetscCall(VecCopy(U, Utrue));  in main()
159   PetscCall(VecGetArray(U, &u));  in main()
162   PetscCall(VecRestoreArray(U, &u));  in main()
185   PetscCall(TSSetSolution(ts, U));  in main()
198   PetscCall(TSSolve(ts, U));  in main()
199   PetscCall(VecView(U, PETSC_VIEWER_STDOUT_WORLD));  in main()
206   PetscCall(VecAXPY(Utrue, -1.0, U));  in main()
217   PetscCall(VecDestroy(&U));  in main()