Add pvars for PSM2 MQ stats to help in analyzing performance
of Omnipath.
Tested (modestly) using modified OSU pt2pt benchmarks.
Signed-off-by: Howard Pritchard <howardp@lanl.gov>
This commit enables MCA support for the following PSM2 environment
variables: PSM2_DEVICES, PSM2_MEMORY, PSM2_MQ_SENDREQS_MAX,
PSM2_MQ_RECVREQS_MAX, PSM2_MQ_RNDV_HFI_THRESH,
PSM2_MQ_RNDV_SHM_THRESH, PSM2_RCVTHREAD, PSM2_SHAREDCONTEXTS,
PSM2_SHAREDCONTEXTS_MAX, and PSM2_TRACEMASK. These variable can be set
by MCA if they are not already set in the environment.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Intel TrueScale and Intel OmniPath, and detect a link in ACTIVE state.
This fix addresses the scenario reported in the below OMPI users email,
including formerly named Qlogic IB, now Intel True scale. Given the
nature of the PSM/PSM2 mtls this fix applies to OmniPath:
https://www.open-mpi.org/community/lists/users/2016/04/29018.php
This commit changes the priority of mtl components to be relative to
pml/ob1 and updates the mtl interface to expose this priority. cm now
sets its own priority based on the priority of the selected mtl
component.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This new MTL runs over PSM2 for Omni Path. PSM2 is a descendant of PSM
with changes to support more ranks and some MPI-3 features like mprobe.
PSM2 will only support Omni Path networks; PSM only supports True Scale.
Likewise, the existing PSM MTL will continue to be maintained for True
Scale, while the PSM2 MTL is developed and maintained for Omni Path.
