<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div>Same window or different windows?</div><div><br></div><div>Jeff</div><div><br><div class="gmail_quote"><div>On Wed, Mar 29, 2017 at 5:59 PM Sebastian Rinke <<a href="mailto:rinke@cs.tu-darmstadt.de">rinke@cs.tu-darmstadt.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear all,<br class="gmail_msg">
<br class="gmail_msg">
I have some issue with MPI_Win_lock in MPICH-3.1.4 on Blue Gene/Q.<br class="gmail_msg">
<br class="gmail_msg">
Here is my example:<br class="gmail_msg">
<br class="gmail_msg">
Process 0:<br class="gmail_msg">
<br class="gmail_msg">
Win_lock(MPI_LOCK_SHARED, target=A)<br class="gmail_msg">
Win_lock(MPI_LOCK_SHARED, target=B)<br class="gmail_msg">
<br class="gmail_msg">
No matter what I use for A and B (given A != B), a process cannot acquire more than one lock<br class="gmail_msg">
at a time.<br class="gmail_msg">
<br class="gmail_msg">
To my understanding, it should be possible to acquire more than one lock.<br class="gmail_msg">
<br class="gmail_msg">
Can you confirm this issue?<br class="gmail_msg">
<br class="gmail_msg">
Thanks,<br class="gmail_msg">
Sebastian<br class="gmail_msg">
_______________________________________________<br class="gmail_msg">
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</blockquote></div></div><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature">Jeff Hammond<br><a href="mailto:jeff.science@gmail.com" target="_blank">jeff.science@gmail.com</a><br><a href="http://jeffhammond.github.io/" target="_blank">http://jeffhammond.github.io/</a></div>