[mvapich-discuss] mvapich 1.9 and posix shared memory

[Devendar Bureddy]

Hi Ben

Can you try MV2_USE_SHARED_MEM=0 (turn off all shared memory designs) to
confirm if it is interaction with new designs in 1.9? Is it possible to
share the reproducer to debug this issue further?

Thanks
Devendar


On Wed, Jul 31, 2013 at 11:56 AM, Ben <Benjamin.M.Auer at nasa.gov> wrote:

> I have a fortran code that can use of posix shared memory in a few places
> to help with memory use. With mvapich-1.8.1 the code runs fine but when
> using mvapich-1.9 the code crashes with a floating invalid error in the
> call to system shmctl when trying to release the shared memory. Besides the
> mvapich version everything is identical and the codes are binary identical
> between mvpapich 1.8.1 and 1.9 when not using the shared memory capability.
> I've tried turning off the the shared memory versions of the barrier,
> reduce ext . . . with MV2_USE_SHMEM_BARRIER=0 for example but that seems to
> have no effect.
> Is there something else that should be interfering with shared memory?
>
> --
> Ben Auer, PhD   SSAI, Scientific Programmer/Analyst
> NASA GSFC,  Global Modeling and Assimilation Office
> Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD  20771
> Phone: 301-286-9176               Fax: 301-614-6246
>
> ______________________________**_________________
> mvapich-discuss mailing list
> mvapich-discuss at cse.ohio-**state.edu <mvapich-discuss at cse.ohio-state.edu>
> http://mail.cse.ohio-state.**edu/mailman/listinfo/mvapich-**discuss<http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss>
>



-- 
Devendar
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.cse.ohio-state.edu/pipermail/mvapich-discuss/attachments/20130731/999fc863/attachment.html