[mvapich-discuss] Suggestion for OSU benchmarks

Jeff Squyres jsquyres at cisco.com
Fri Sep 14 11:06:46 EDT 2007


Greetings.

I have a minor suggestion for the OSU benchmarks: it would be handy  
to put in an fflush() statement after the fprintf/printf statements.   
This is useful to show that progress is actually occurring in the  
job, especially on slow networks and/or if the resource manager (or  
other I/O forwarding system) buffers the stdout until the entire job  
completes.

I've attached a simple patch against https://mvapich.cse.ohio- 
state.edu/svn/mpi/mvapich2/trunk/osu_benchmarks at 1507 (this morning)  
which adds in all the fflush'es.  Enjoy.

-- 
Jeff Squyres
Cisco Systems

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