[petsc-users] PetscPrintf

[Matthew Knepley]

On Tue, Dec 13, 2011 at 10:13 AM, Xiangdong Liang <xdliang at gmail.com> wrote:

> Hello everyone,
>
> I am using PetscPrintf(PETSC_COMM_WORLD,.....) to print out some
> information. When I run the program on multiple processors, some of
> these calls are printed out multiple times, while other calls are
> printed out once. Should it be printed only once if I use
> PETSC_COMM_WORLD? Thanks.


The print is executed only on rank 0 of the communicator provided.

   Matt


>
> Xiangdong
>
> PS. I am using petsc-dev. My code works fine on real petsc-3.1-p8. I
> just switched to complex petsc-dev and see this problem.
>



-- 
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
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