We have recently upgraded our cluster to a version of Linux which comes
with openMPI version 1.6.2.
An application which ran previously (using some version of 1.4) now errors
out with the following messages:
librdmacm: Fatal: no RDMA devices found
librdmacm: Fatal: no RDMA devices found
librdmacm: Fatal: no RDMA devices found
--------------------------------------------------------------------------
WARNING: Failed to open "OpenIB-cma" [DAT_INTERNAL_ERROR:].
This may be a real error or it may be an invalid entry in the
uDAPL
Registry which is contained in the dat.conf file. Contact your
local
System Administrator to confirm the availability of the interfaces
in
the dat.conf file.
--------------------------------------------------------------------------
[tupile:25363] 2 more processes have sent help message
help-mpi-btl-udapl.txt / dat_ia_open fail
[tupile:25363] Set MCA parameter "orte_base_help_aggregate" to 0
to see all help / error messages
The mpirun command line contains the argument '--mca btl ^openib', which I
thought told mpi to not look for the ib interface.
Can anyone suggest what the problem might be? Did the relevant syntax
change between versions 1.4 and 1.6?
Jeffrey A. Cummings
Engineering Specialist
Performance Modeling and Analysis Department
Systems Analysis and Simulation Subdivision
Systems Engineering Division
Engineering and Technology Group
The Aerospace Corporation
571-307-4220
jeffrey.a.cummi...@aero.org
