Re: [OMPI users] Axon BTL for OpenMPI?

[Marcus G. Daniels]

Hi Jeff,
I'd like to use MPI for features like derived types, and moving 
around non-flat data.


You should be able to do that today.

The Axon PCIe-to-PCIe RDMA interface has a raw device and an ethernet 
device in the Linux kernel, and I can indeed using the latter as a 
workaround.   It's more overhead but not a bottleneck for my 
application. For those Roadrunner users where that cost cannot be 
tolerated, the alternative is to use another less featureful non-MPI 
library...

Thanks,

Marcus