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Subject: Re: [OMPI devel] 1.4.4rc2 is up
From: Larry Baker (baker_at_[hidden])
Date: 2011-05-24 16:23:39


I see in ompi/mca/btl/openib/btl_openib/connect/
btl_openib_connect_oob.c and .../btl_openib_connect_xoob.c what looks
like assignments of the form

    path_mtu = MIN( device_mtu, remote_mtu );

In ompi/mca/btl/openib/btl_openib/connect/
btl_openib_connect_oob.c(289) it looks correct:

> enum ibv_mtu mtu = (openib_btl->device->mtu < endpoint-
> >rem_info.rem_mtu) ?
> openib_btl->device->mtu : endpoint->rem_info.rem_mtu;

However, in ompi/mca/btl/openib/btl_openib/connect/
btl_openib_connect_xoob.c(462 and 563), it looks suspicious (different
remote_mtu's):

> attr.path_mtu = (openib_btl->device->mtu < endpoint-
> >rem_info.rem_mtu) ?
> openib_btl->device->mtu : rem_info->rem_mtu;

Can someone verify that the code in ompi/mca/btl/openib/btl_openib/
connect/btl_openib_connect_xoob.c is correct?

Larry Baker
US Geological Survey
650-329-5608
baker_at_[hidden]

On 5 May 2011, at 7:15 AM, Jeff Squyres wrote:

> Fixed the ROMIO attribute problem properly this time -- it's in the
> usual place:
>
> http://www.open-mpi.org/software/ompi/v1.4/
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
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