Dirk Eddelbuettel wrote:
On 6 September 2008 at 22:13, Davi Vercillo C. Garcia ( ) wrote:
| I'm trying to execute some programs in my notebook (Ubuntu 8.04) using
| OpenMPI, and I always get a warning message like:
|
| libibverbs: Fatal: couldn't read uverbs ABI version.
| --------------------------------------------------------------------------
| [0,0,0]: OpenIB on host juliana was unable to find any HCAs.
| Another transport will be used instead, although this may result in
| lower performance.
| --------------------------------------------------------------------------
|
| What is this ?!
Uncomment this in /etc/openmpi/openmpi-mca-params.conf:
# Disable the use of InfiniBand
btl = ^openib
which is the default in newer packages.
Is there some way the message could have been written so users wouldn't
have to solicit the alias for help? I don't know if the diagnosibility
of error messages has gotten much attention in the Open MPI community,
but I would think messages should be understandable and suggest user
actions in terms that a typical user would understand. In this case,
the message seems rather readable to me, but leaves the user far short
of the seemingly sensible advice that Dirk provides.
