Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: Re: [OMPI devel] openmpi-1.7.2 fails to use the RDMACM CPC
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2013-08-19 16:23:19


No need to both post to the ticket and to devel -- just pick one. :-)

Can you send a patch/fix?

On Aug 19, 2013, at 4:17 PM, Steve Wise <swise_at_[hidden]> wrote:

>> -----Original Message-----
>> From: devel [mailto:devel-bounces_at_[hidden]] On Behalf Of Steve Wise
>> Sent: Monday, August 19, 2013 2:42 PM
>> To: 'Open MPI Developers'; 'Jeff Squyres (jsquyres)'
>> Cc: 'Indranil Choudhury'
>> Subject: Re: [OMPI devel] openmpi-1.7.2 fails to use the RDMACM CPC
>>
>> I confirmed that this is a regression from 1.7.1...
>>
>> I'll see if I can figure out what's going on...
>>
>
>
> Looks like this is not defined anywhere: HAVE_IBV_LINK_LAYER_ETHERNET, which causes
> btl_openib_connect_oob.c:oob_component_query() to falsely claim oob support for iwarp devices.
>
> In 1.7.1 we see this in oob_component_query():
>
> #if defined(HAVE_STRUCT_IBV_DEVICE_TRANSPORT_TYPE)
> if (BTL_OPENIB_CONNECT_BASE_CHECK_IF_NOT_IB(btl)) {
> opal_output_verbose(5, mca_btl_base_output,
> "openib BTL: oob CPC only supported on InfiniBand; skipped on %s:%d",
> ibv_get_device_name(btl->device->ib_dev),
> btl->port_num);
> return OMPI_ERR_NOT_SUPPORTED;
> }
> #endif
>
> In 1.7.2, it adds the HAVE_IBV_LINK_LAYER_ETHERNET define:
>
> #if defined(HAVE_STRUCT_IBV_DEVICE_TRANSPORT_TYPE) && defined(HAVE_IBV_LINK_LAYER_ETHERNET)
> if (BTL_OPENIB_CONNECT_BASE_CHECK_IF_NOT_IB(btl)) {
> opal_output_verbose(5, mca_btl_base_output,
> "openib BTL: oob CPC only supported on InfiniBand; skipped on %s:%d",
> ibv_get_device_name(btl->device->ib_dev),
> btl->port_num);
> return OMPI_ERR_NOT_SUPPORTED;
> }
> #endif
>
>

-- 
Jeff Squyres
jsquyres_at_[hidden]
For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/