The error happen when Open MPI tried to open the MX BTL. However,
this does not necessary means that the MX file was not found. I think
the problem is not the Open MPI libraries but the MX driver itself.
I suggest you do a ldd on the mca_btl_mx.so file and check that all
dependencies are fulfilled ? All your nodes have a similar
configuration ? Do they all have the MX library installed ?
Thanks,
george.
On Nov 18, 2006, at 11:55 AM, Lydia Heck wrote:
I have myricom mx installed and configured and its communications
work (using
mx commands such as mx_info to check)
Then I configured openmpi-1.3a1r12408 with mx and the configuration
did give no errors. The built of the openmpi was without problems
and it
installed properly. I can build and link a program - and ldd shows the
openmpi libraries linked accordingly.
In order to run applications I set the LD_LIBRARY_PATH and the PATH
correctly
but the command.
ompi_info | grep mx
[m2001:12844] mca: base: component_find: unable to open mtl mx:
file not found
(ignored)
[m2001:12844] mca: base: component_find: unable to open btl mx:
file not found
(ignored)
[m2001:12844] mca: base: component_find: unable to open mtl mx:
file not found
(ignored)
and indeed the job does not run, if I give the instruction
-mca btl mx
Any idea why this should happen?
Lydia
------------------------------------------
Dr E L Heck
University of Durham
Institute for Computational Cosmology
Ogden Centre
Department of Physics
South Road
DURHAM, DH1 3LE
United Kingdom
e-mail: lydia.h...@durham.ac.uk
Tel.: + 44 191 - 334 3628
Fax.: + 44 191 - 334 3645
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