[Users] librdmacm: couldn't read ABI version

[Hal Rosenstock]

Hi,

If it is the case that there are no RDMA CAs in your systems, this looks
like either an MPI run time or build issue where the OpenIB BTL which used
RDMA CM is being used and shouldn't be.

If that's not the case, are correct kernel modules loaded (rdma_ucm, etc.) ?

-- Hal

On Sun, Aug 14, 2016 at 6:19 AM, Christiano SA <christiano at engineer.com>
wrote:

> Hi,
>
> I don't know if this is the correct list to ask this question. I just want
> to understand.
> I have a a.c (attached) software, a hello world MPI using OpenMPI.
> This is what I've done:
> solaris at solaris:~/mpi$ mpicc a.c
> solaris at solaris:~/mpi$ mpirun -H localhost,solaris at 192.168.0.106 a.out
>
> The result:
> librdmacm: couldn't read ABI version.
> librdmacm: assuming: 4
> CMA: unable to get RDMA device list
> librdmacm: couldn't read ABI version.
> librdmacm: assuming: 4
> CMA: unable to get RDMA device list
> Greetings from process 0 of 2!
> Greetings from process 1 of 2!
>
> The Blue Section is exatcly what I expected, however the Red section I
> didn't understand. Then I did a search using keyword librdmacm and
> discover the openfabrics.org wich I did not even know of its existence.
> Can you help me to understand this red section and if I have to fix
> anything in my system to learn MPI? (I'm following a book)
>
> My System is composed by two computers x86 running Solaris 11.3, using
> common router tp-link, ethernet, acttually there is not anything special in
> my network (I'm telling this because I see in openfabrics.org a
> technollogy called InfiniBand), OpenMPI installed from Oracle Packages,
> a.out inside each computer in same folder.
>
> Thank you
>
> _______________________________________________
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> Users at lists.openfabrics.org
> http://lists.openfabrics.org/mailman/listinfo/users
>
>
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