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Subject: [OMPI devel] Merging in the CPC work
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-04-23 06:53:02

As we discussed yesterday, I have started the merge from the /tmp-
public/openib-cpc2 branch. "oob" is currently the default.

Unfortunately, it caused quite a few conflicts when I merged with the
trunk, so I created a new temp branch and put all the work there: /tmp-

Could all the IB and iWARP vendors and any other interested parties
please try this branch before we bring it back to the trunk? Please
test all functionality that you care about -- XRC, etc. I'd like to
bring it back to the trunk COB Thursday. Please let me know if this
is too soon.

You can force the selection of a different CPC with the
btl_openib_cpc_include MCA param:

     mpirun --mca btl_openib_cpc_include oob ...
     mpirun --mca btl_openib_cpc_include xoob ...
     mpirun --mca btl_openib_cpc_include rdma_cm ...
     mpirun --mca btl_openib_cpc_include ibcm ...

You might want to concentrate on testing oob and xoob to ensure that
we didn't cause any regressions. The ibcm and rdma_cm CPCs probably
still have some rough edges (and the IBCM package in OFED itself may
not be 100% -- that's one of the things we're evaluating. It's known
to not install properly on RHEL4U4, for example -- you have to
manually mknod and chmod a device in /dev/infiniband for every HCA in
the host).


Jeff Squyres
Cisco Systems