Make sure you have Open MPI 1.3 series,
I dont think the if_include param is not avaliable in 1.2 series.
max btls controls fragmentation and load balancing over similar BTLS (
example using LMC > 0, or 2 ports connected to 1 network )
you need if_include param
On Wed, Jul 15, 2009 at 4:20 PM, Ralph Castain <rhc_at_[hidden]> wrote:
> 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, <neeraj_at_[hidden]> 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
>> Any help is appreciated. Btw i just checked Mvapich and feature is
>> there inside.
>> Neeraj Chourasia (MTS)
>> Computational Research Laboratories Ltd.
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