george.
On Sep 20, 2007, at 8:40 PM, Jeff Squyres wrote:
Open MPI currently has a "negative ACK" kind of assumption built into it -- it assumes that if you have high-speed network support built into it, you'll want to know if you're not using it. You're correct that you can disable this warning by setting the "btl" MCA parameter to ^openib (or any other inclusive value that does not have "openib" in it). On Sep 19, 2007, at 1:19 PM, Tobias Burnus wrote:If I start an MPI job with: mpirun -np 2 the following gets shown:--------------------------------------------------------------------- ----- [0,1,0]: OpenIB on host tux was unable to find any HCAs. Another transport will be used instead, although this may result in lower performance.--------------------------------------------------------------------- -------------------------------------------------------------------------- ----- [0,1,0]: uDAPL on host tux was unable to find any NICs. Another transport will be used instead, although this may result in lower performance.--------------------------------------------------------------------- ----- libibverbs: Fatal: couldn't read uverbs ABI version. before it runs the job. The point is: As I have *one* SMP machine, there is no need to use Infiniband etc. as accessing the local memory directly will be faster ;-) Why is this message shown in this case? (I read that one can suppress the first message via "btl=^openib" in /etc/openmpi-mca-params.conf:.) Tobias _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users-- Jeff Squyres Cisco Systems _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
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