[mvapich-discuss] librdmacm warning when I run MPI programs

[Jonathan Perkins]

On Mon, Sep 24, 2012 at 04:16:27PM +0530, Vaivaswatha N wrote:
> Hi,
> 
> I'm trying to use MVAPICH to run an MPI program in my college cluster. My
> program is working correctly, but the following warnings are emitted.
> 
> librdmacm: couldn't read ABI version.
> librdmacm: assuming: 4
> 
> Searching on Google seems to hint that this is related to the InifniBand
> not being used for the communication. Can someone comment if this is true
> and what could be causing the issue?

This warning usually indicates a problem with the OFED installation
which could prevent the RDMA connection manager from functioning
properly.  You may want to bring this up to your Admin.

By default we use the IB connection manager so it is likely that
Infiniband is being used for the communication.

-- 
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo