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<div>It's not guaranteed that you will receive an error from a send (of any kind other than ssend). The reason is that the implementation can buffer the message internally and return to the application before the message is actually transferred. You will definitely
receive an error related to any kind of receive, but sends are less reliable in that sense. </div>
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<div>Thanks,</div>
<div>Wesley<br>
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On Oct 20, 2014, at 7:53 AM, Roy, Hirak <<a href="mailto:Hirak_Roy@mentor.com">Hirak_Roy@mentor.com</a>> wrote:<br>
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<pre><span style="font-family:"Calibri","sans-serif";color:black">Hi Wesley,<o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black">Suppose my server-client connection is setup using MPI_Comm_accept/MPI_Comm_connect.<o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black">Now one of the clients dies.<o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black">If the server sends a non-blocking message to the dead client by MPI_Isend, will MPI_Wait guaranteed to return Error code? <o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black">Thanks,<o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black">Hirak <o:p></o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></pre>
<pre><span style="font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">>You will only receive the notification if you use a communicating call. That call doesn't do any communication so it won't return the error. <o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">><i> On Oct 9, 2014, at 11:37 AM, Roy, Hirak <<a href="https://lists.mpich.org/mailman/listinfo/discuss">Hirak_Roy at mentor.com</a>> wrote:<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> Hi Pavan and Wesley,<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> Thanks Pavan for the information.<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> Wesley,<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> If I try MPI_Comm_remote_size periodically, then should I get Error-code, when the client on the other side of the intercom is killed ? ( I have already used MPI_ERRORS_RETURN).<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> Thanks,<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> Hirak</i><o:p></o:p></span></pre>
<p class="MsoNormal"><o:p> </o:p></p>
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