<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>HW : INTEL 4XQuad, 128G memory box.</DIV>
<DIV>processes : 6</DIV>
<DIV>Threaded : no</DIV>
<DIV>process size : 7G each</DIV>
<DIV> </DIV>
<DIV>when it happened : first MPI_Send()/MPI_Recv() call, 5 minutes into the run</DIV>
<DIV> </DIV>
<DIV>description :</DIV>
<DIV> </DIV>
<DIV> between the master and each slaves the max message sizes are around 240K bytes. However, the</DIV>
<DIV>first MPI_Send()/MPI_Recv() only has all slaves send 12 bytes to the master, and receiving 12 bytes</DIV>
<DIV>from master. By design, when this exchange is completed, we are good to go. </DIV>
<DIV> </DIV>
<DIV>However, on this particular test, we got stuck at MPI_Send()/MPI_Recv() call for more than 70 minutes</DIV>
<DIV>for reason I don't understand. </DIV>
<DIV> </DIV>
<DIV>has anyone run into situation like this ? I ran into one with version 1., but this is the first time I run</DIV>
<DIV>into this problem with 1.0.6</DIV>
<DIV> </DIV>
<DIV>any suggestion will be helpful.</DIV>
<DIV> </DIV>
<DIV>thanks</DIV>
<DIV>tan</DIV>
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