Can 64-bit Mpiexec start programs compiled for 32-bit?

Garrick Staples garrick at usc.edu
Wed Mar 22 16:10:36 EST 2006


On Wed, Mar 22, 2006 at 02:04:51PM -0500, Tod Hagan alleged:
> The same program compiled as 32-bit and run with the 64-bit mpiexec
> produces:
> 
> node 0/1
> node 0/1
> node 0/1
> node 0/1
> node 0/1
> node 0/1
> 
> The 32-bit program works correctly when started with the 32-bit mpirun
> from mpichgm-1.2.6.

Are you sure you didn't accidently run a p4 program as gm?  Your result
is exactly what happens when I forget to use --comm=p4.

-- 
Garrick Staples, Linux/HPCC Administrator
University of Southern California
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