On Sat, May 30, 2015 at 5:05 AM, Rongliang Chen <[email protected]>
wrote:
> Hi there,
>
> I am trying to use NASM to solve a nonlinear problem. In my
> FormFunctionLocal, I need to call DMDAVecGetArray(da, myvec, z). For the
> "-da_overlap 0" case, the code works fine.
>
> For the "-da_overlap 1" case, when I use the vector "myvec" created by
> DMCreateLocalVector, it works fine. But if I use the vector "myvec" created
> by DMCreateGlobalVector, I got the error messages:
> -----------------------
> [6]Arguments are incompatible
> [6]PETSC ERROR: Vector local size 597870 is not compatible with DMDA local
> sizes 619528 664392
> ----------------------
>
> And when I switch to "-da_overlap 2", both of the global and local version
> of "mrvec" got error messages:
> ----------------------------------
> [10]PETSC ERROR: Arguments are incompatible
> [10]PETSC ERROR: Vector local size 589680 is not compatible with DMDA
> local sizes 633144 678680
>
> [3]PETSC ERROR: Arguments are incompatible
> [3]PETSC ERROR: Vector local size 619528 is not compatible with DMDA local
> sizes 650256 696540
> -----------------------------------
>
> Can any one tell me how to use DMDAVecGetArray in FormFunctionLocal for
> NASM? Thanks.
>
1) You have to show the full error messages
2) You should simplify the problem for debugging. Run on 1 or 2 processes
3) The vector that comes into FormFunctionLocal() is a local vector
Thanks,
Matt
> Best regards,
> Rongliang
>
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
