Article ID: 9 - Last Modified: June 6, 2011
When running parallel Jaguar or QSite calculations the following message is in the log file for the job. Is this a problem?
[[6789,1],1]: A high-performance Open MPI point-to-point messaging module was unable to find any relevant network interfaces:
Module: OpenFabrics (openib)
Another transport will be used instead, although this may result in lower performance.
This is a warning concerning the operation of Open MPI, the MPI package that is included with Jaguar and QSite for parallel calculations. It does not suggest that there is a problem with the calculation itself.
You can suppress this message by setting the SCHRODINGER_MPI_FLAGS environment variable in your system-wide startup file.
For example, in .bashrc:
SCHRODINGER_MPI_FLAGS="--mca btl tcp,self"
setenv SCHRODINGER_MPI_FLAGS "SCHRODINGER_MPI_FLAGS="--mca btl tcp,self"
After doing this, open a new shell and re-submit the calculations.
Keywords: Jaguar, QSite, OpenFabrics, Open Mpi, Warning, openmpi, MPI
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