User guide

7–Virtual Fabric support in PSM
Using Service ID
IB0054606-02 A 7-3
Using Service ID
Full vFabric integration with PSM is available, allowing the user to specify a SID.
For correct operation, PSM requires the following components to be available and
configured correctly.
 QLogic host Fabric Manager Configuration – PSM MPI vFabrics need to be
configured and enabled correctly in the qlogic_fm.xml file. 16 unique
SIDs have been allocated in the sample file.
 OFED+ library needs to be installed on all nodes. This is available as part of
Fast Fabrics tools.
 QLogic Distributed SA needs to be installed, configured and activated on all
the nodes. This is part of FastFabrics tools. Please refer to QLogic Fast
Fabric User Guide on how to configure and activate the Distributed SA. The
SIDs configured in the QLogic Fabric Manager configuration file should also
be provided to the Distributed SA for correct operation.
Service ID can be specified natively for Open MPI. For other MPIs use the
following list of environment variables. The environment variables need to be
propagated across all processes for correct operation.
 Open MPI: Use mca parameters (mtl_psm_ib_service_id and
mtl_psm_path_query) to specify the service id on the mpirun command
line. Example:
mpirun –np 2 –machinefile machinefile -mca
mtl_psm_path_query opp -mca mtl_psm_ib_service_id SID
prog prog_args
 Other MPIs can use the following environment variables:
 PSM_PATH_REC=opp # Path record query mechanism to
use. Always specify opp
 PSM_IB_SERVICE_ID=SID # Service ID to use
SL2VL mapping from the Fabric Manager
PSM is able to use the SL2VL table as programmed by the QLogic Fabric
Manager. Prior releases required manual specification of the SL2VL mapping via
an environment variable.