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

[Sebastian Rinke]

Same window, i.e.:

Process 0:

Win_lock(MPI_LOCK_SHARED, target=A, window=win)
Win_lock(MPI_LOCK_SHARED, target=B, window=win)

Sebastian


On 30 Mar 2017, at 06:24, Jeff Hammond <jeff.science at gmail.com> wrote:

> 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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