You mean via an API of some kind? Not through an MPI call, but you can do it (though your code will wind up OMPI-specific). Look at the OMPI source code in opal/mca/paffinity/paffinity.h and you&#39;ll see the necessary calls as well as some macros to help parse the results.<div>
<br></div><div>Depending upon what version you are using, there may also be a function in opal/mca/paffinity/base/base.h to pretty-print that info for you. I believe it may only be in the developer&#39;s trunk right now, or it may have made it into the 1.5.0 release candidate....<br>
<br></div><div><br><div class="gmail_quote">On Thu, Sep 23, 2010 at 11:24 AM, Fernando Saez <span dir="ltr">&lt;<a href="mailto:saezfernando@gmail.com">saezfernando@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi all, I&#39;m new in the list. I don&#39;t know if this post has been treated before.<br><br>My question is:<br><br>Is there a way in the OMPI library to report which process is running<br>on which core in a SMP system? I need to know processor affinity for optimizations <span><span style="background-color:rgb(230, 236, 249);color:rgb(0, 0, 0)" title="">issues.<br>


<br>Regards<br><br>Fernando Saez<br></span></span><br><br>
<br>_______________________________________________<br>
users mailing list<br>
<a href="mailto:users@open-mpi.org">users@open-mpi.org</a><br>
<a href="http://www.open-mpi.org/mailman/listinfo.cgi/users" target="_blank">http://www.open-mpi.org/mailman/listinfo.cgi/users</a><br></blockquote></div><br></div>