[mpich-discuss] MPICH-3.1.4 with PAMID: Win_lock

[Jeff Hammond]

Same window or different windows?

Jeff

On Wed, Mar 29, 2017 at 5:59 PM Sebastian Rinke <rinke at cs.tu-darmstadt.de>
wrote:

> Dear all,
>
> I have some issue with MPI_Win_lock in MPICH-3.1.4 on Blue Gene/Q.
>
> Here is my example:
>
> Process 0:
>
> Win_lock(MPI_LOCK_SHARED, target=A)
> Win_lock(MPI_LOCK_SHARED, target=B)
>
> No matter what I use for A and B (given A != B), a process cannot acquire
> more than one lock
> at a time.
>
> To my understanding, it should be possible to acquire more than one lock.
>
> Can you confirm this issue?
>
> Thanks,
> Sebastian
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-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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