Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI users] btl_tcp_if_include setting
From: Ralph Castain (rhc_at_[hidden])
Date: 2013-10-14 10:36:52


It won't be a configure switch, but you can put the following in your default system mca param file:

btl_tcp_if_include=ipogif0

You'll find that file in <prefix>/etc - it is called openmpi-mca-params.conf. Users won't have to enter it after that since we pick that file up by default.

On Oct 14, 2013, at 7:27 AM, Ray Sheppard <rsheppar_at_[hidden]> wrote:

> Hi,
> I am setting up version 1.7.2 for a Cray XE-6. The build nodes have different interfaces than the compute nodes. I have been able to set it up, but users need to embed the following into their mpirun command:
> --mca btl_tcp_if_include ipogif0
>
> Currently, The ompi_info shows as below. I have been trying to figure out the correct configure switch to add to the build to remove the need for a permanent mpirun switch, but seem to be not getting it right. Any suggestions are welcomed. Thanks,
> Ray
>
>
> ompi_info --param btl all
> MCA btl: parameter "btl_tcp_if_include" (current value: "",
> data source: default, level: 1 user/basic, type:
> string)
> Comma-delimited list of devices and/or CIDR
> notation of networks to use for MPI communication
> (e.g., "eth0,192.168.0.0/16"). Mutually exclusive
> with btl_tcp_if_exclude.
> MCA btl: parameter "btl_tcp_if_exclude" (current value:
> "127.0.0.1/8,sppp", data source: default, level: 1
> user/basic, type: string)
> Comma-delimited list of devices and/or CIDR
> notation of networks to NOT use for MPI
> communication -- all devices not matching these
> specifications will be used (e.g.,
> "eth0,192.168.0.0/16"). If set to a non-default
> value, it is mutually exclusive with
> btl_tcp_if_include.
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users