[mvapich-discuss] -legacy

Jonathan Perkins perkinjo at cse.ohio-state.edu
Fri Jan 15 17:24:54 EST 2010


On Fri, Jan 15, 2010 at 03:17:49PM -0600, Simon, Tyler Andrew. (GSFC-606.2)[COMPUTER SCIENCE CORP] wrote:
> what exactly does the "-legacy" flag do when running with mvapich 1.1?

It causes mpirun_rsh to launch jobs serially with one link to each rank
to the process manager.  This is not as scalable nor as fast as using
one connection per host.

-- 
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo
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