[mpich-discuss] MPI_Waitany: "The semaphore timeout period has expired. ( errno 121)"

[David_Lowinger at ea.epson.com]

I am encountering the following error at runtime when using MPI_Waitany:

"The semaphore timeout period has expired. ( errno 121)"

It looks like it's occuring in MPIDU_Sock_wait around line 2603.  Can I 
get more information on this error somewhere?  Is there a way to increase 
this "timeout period"?

On a separate note, is there a proper way to implement a "dynamic network" 
using MPI, ie. a network in which nodes are added or subtracted during 
runtime?  Can someone recommend a good document or method for that?

Thank you and regards,
David
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