[knem-devel] Can't modprobe KNEM

Juan A. Cordero Varelaq bioinformatica-ibis at us.es
Fri Jan 20 14:04:29 CET 2017


Hi,

There are no sources available, unfortunately, so I'm afraid I can't 
rebuild the MOFED knem module.

Won't there be any incompatibility issue if I have two KNEM versions, 
one from MOFED and the original from KNEM?


Thanks

Cheers
On 20/01/17 13:59, Brice Goglin wrote:
> Hello
>
> Looks like your knem module was not properly built for that kernel. If 
> it comes from MOFED, you should report the issue to Mellanox.
>
> You may try to ask dkms to rebuild the MOFED knem module (assuming the 
> sources are still available on your system). I don't remember how to 
> do that.
>
> In the meantime, you may rebuild your own knem by downloading the 
> tarball from http://knem.gforge.inria.fr/download/ and following the 
> doc at http://knem.gforge.inria.fr/doc/
>
> Brice
>
>
>
> Le 20/01/2017 13:45, Juan A. Cordero Varelaq a écrit :
>> Hi,
>>
>> I have inherited an SGE cluster with Mellanox OFED software installed:
>>
>>   *  /opt/knem-1.1.90mlnx2
>>   * /opt/mellanox/mxm
>>   * /opt/mellanox/fca
>>
>> After having installed OpenMPI-2.0.1 I've got lots of warnings 
>> related to KNEM. Then, from the OMPI mailing list, I've been told  I 
>> should first load the knem module, since /dev/knem does not exist 
>> yet. However, when I runmodprobe knem (with root user), I get the 
>> following:
>>
>>     FATAL: Error inserting knem
>>     (/lib/modules/3.13.0-37-generic/updates/dkms/knem.ko): Invalid
>>     module format
>>
>> After reading the knem documentation, I've tried:
>>
>>     /opt/knem-1.1.90mlnx2/sbin/knem_local_install
>>
>> and got:
>>
>>     Installing module...
>>       Installing module /lib/modules/3.13.0-37-generic/extra//knem.ko...
>>     cp: cannot stat
>>     `/opt/knem-1.1.90mlnx2/lib/modules/3.13.0-37-generic/knem.ko': No
>>     such file or directory
>>
>> I would appreciate a lot any hint on this issue.
>>
>> Thanks a lot in advance
>>
>>
>>
>> _______________________________________________
>> knem-devel mailing list
>> knem-devel at lists.gforge.inria.fr
>> http://lists.gforge.inria.fr/mailman/listinfo/knem-devel
>

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