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<p class="MsoNormal"><span style="color:#1F497D">I tried to do : pthread_cancel(thread2).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This terminates the blocking accept.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">However, MPI_Finalize hangs.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Hirak<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Roy, Hirak
<br>
<b>Sent:</b> Wednesday, October 08, 2014 9:28 AM<br>
<b>To:</b> discuss@mpich.org<br>
<b>Subject:</b> Re: How to terminate MPI_Comm_accept<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Huiwei,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your response.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I don’t think the solution you suggested will work. <o:p></o:p></p>
<p class="MsoNormal">MPI_Comm_accept is a blocking MPI call and the call does not return until there is a matching MPI_Comm_connect or implementation specified timeout ( the timeout can not be configured and reasonably high).<o:p></o:p></p>
<p class="MsoNormal">So when Thread2 is waiting on MPI_Comm_accept, it neither can receive any message nor can check any shared flag value.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">That’s why I tried to terminate the accept by connecting from thread1.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please let me know if you have any other suggestion.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Hirak<o:p></o:p></p>
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