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From: Scott Atchley (atchley_at_[hidden])
Date: 2006-12-07 09:50:15


On Dec 6, 2006, at 3:09 PM, Scott Atchley wrote:

> Brock and Galen,
>
> We are willing to assist. Our best guess is that OMPI is using the
> code in a way different than MPICH-GM does. One of our other
> developers who is more comfortable with the GM API is looking into it.

We tried running with HPCC with:

$ mpirun -np 4 -machinefile hosts -mca btl ^tcp -mca
btl_gm_min_rdma_size $((10*1024*1024)) ./hpcc.ompi.gm

and HPL passes. The problem seems to be in the RDMA fragmenting code
on OSX. The boundary values at the edges of the fragments are not
correct.

Scott