As Lenny said, you should use the if_include parameter. Specifically,
it would look like this depending on which ones you want to select.
-mca btl_openib_if_include mtcha0
or
-mca btl_openib_if_include mtcha1
Rolf
On 07/15/09 09:33, [email protected] wrote:
Thanks Ralph,
i found the mca parameter. It is btl_openib_max_btls which
controls the available HCAs.
Thanks for helping.
Regards
Neeraj Chourasia (MTS)
Computational Research Laboratories Ltd.
(A wholly Owned Subsidiary of TATA SONS Ltd)
B-101, ICC Trade Towers, Senapati Bapat Road
Pune 411016 (Mah) INDIA
(O) +91-20-6620 9863 (Fax) +91-20-6620 9862
M: +91.9225520634
*Ralph Castain <[email protected]>*
Sent by: [email protected]
07/15/2009 06:54 PM
Please respond to
Open MPI Users <[email protected]>
To
Open MPI Users <[email protected]>
cc
Subject
Re: [OMPI users] selectively bind MPI to one HCA out of available
ones
Take a look at the output from "ompi_info --params btl openib" and you
will see the available MCA params to direct the openib subsystem. I
believe you will find that you can indeed specify the interface.
On Wed, Jul 15, 2009 at 7:15 AM, <[email protected]_
<mailto:[email protected]>> wrote:
Hi all,
I have a cluster where both HCA's of blade are active, but
connected to different subnet.
Is there an option in MPI to select one HCA out of available
one's? I know it can be done by making changes in openmpi code, but i
need clean interface like option during mpi launch time to select mthca0
or mthca1?
Any help is appreciated. Btw i just checked Mvapich and feature
is there inside.
Regards
Neeraj Chourasia (MTS)
Computational Research Laboratories Ltd.
(A wholly Owned Subsidiary of TATA SONS Ltd)
B-101, ICC Trade Towers, Senapati Bapat Road
Pune 411016 (Mah) INDIA
(O) +91-20-6620 9863 (Fax) +91-20-6620 9862
M: +91.9225520634
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