<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000'>Hi,<div><br></div><div>I'm connecting two MPI applications A and B using MPI_Comm_accept in A and MPI_Comm_connect in B. I would like to know a bit more about the behavior in case one application stops (say B): will a communication attempt (e.g. MPI_Send) from a process from A to a process from B crash? return an error? block?</div><div>Is there a way for application A to notice that B has stopped in order to avoid communicating with it?</div><div><br></div><div>Thanks.</div><div><br></div><div>PS: by the way for whom is involved in the MPI forum, an MPI_Comm_iaccept in the MPI3 standard would have been useful. Something to keep in mind for the next version maybe ;)<br><br><div><span name="x"></span><font size="2"><font size="3">Matthieu Dorier<br>
</font>PhD student at ENS Cachan Brittany and IRISA<br><a href="http://people.irisa.fr/Matthieu.Dorier">http://people.irisa.fr/Matthieu.Dorier</a></font><span name="x"></span><br></div></div></div></body></html>