[mpich-discuss] halt after mpiexec

[Dave Goodell]

On Jan 14, 2010, at 12:18 PM, Gao, Yi wrote:

> Although this does not work if I added a 64bit ubuntu9.10 machine into
> the game, it's enough for me to do some prototyping. :)

Yes, MPICH2 doesn't currently support mixed 32-bit and 64-bit  
environments.  If you force your 64-bit machine to compile all MPI  
related stuff in 32-bit mode (usually just passing "-m32" to compilers/ 
linkers) then the machines should be able to talk to each other.

-Dave