fast commands give warning in case of comm=none

Thomas Zeiser thomas.zeiser at rrze.uni-erlangen.de
Mon Nov 27 16:28:15 EST 2006


Hello Pete,

if I do something like
	mpiexec -comm=none -pernode hostname
I sometimes get a warning 
	mpiexec: Warning: tasks 0-15 exited before completing MPI
	startup.

So far I only observed this if
- the command is very fast
- or the wrong MPI implementation is specified.

Is it a feature or a bug that "comm=none" sometimes results in the
warning given above for very fast commands?


Regards,

thomas

-- 
Dipl.-Ing. Thomas ZEISER
Regionales Rechenzentrum Erlangen
Martensstr. 1, 91058 Erlangen, GERMANY


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