[petsc-dev] segv on Cray with 64K processes

Mark F. Adams mark.adams at columbia.edu
Tue Jun 5 09:58:25 CDT 2012

On Jun 5, 2012, at 10:49 AM, Jed Brown wrote:

> On Tue, Jun 5, 2012 at 9:47 AM, Mark F. Adams <mark.adams at columbia.edu> wrote:
> printf surrounded by barriers.
> There are a lot of system calls in PetscErrorPrintfInitialize.  I've added printfs to this and submitted the job so I should have that info tomorrow.
>  Can you instruct one process (or a few) to dump core?

I suppose so.  How does one do that?

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