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Subject: [OMPI users] Openmpi 1.8 "rmaps seq" doesn't work
From: Chen Bill (billchen001_at_[hidden])
Date: 2014-04-06 22:17:10


Hi ,

I just tried the openmpi 1.8, but I found the feature --mca rmaps seq
doesn't work.

for example,

>mpirun -np 4 -hostfile hostsfle --mca rmaps seq hostname

It shows below error,

--------------------------------------------------------------------------
Your job failed to map. Either no mapper was available, or none
of the available mappers was able to perform the requested
mapping operation. This can happen if you request a map type
(e.g., loadbalance) and the corresponding mapper was not built.
--------------------------------------------------------------------------

but when I use ompi_info ,it shows has this feature

>ompi_info |grep -i rmaps
               MCA rmaps: lama (MCA v2.0, API v2.0, Component v1.8)
               MCA rmaps: mindist (MCA v2.0, API v2.0, Component v1.8)
               MCA rmaps: ppr (MCA v2.0, API v2.0, Component v1.8)
               MCA rmaps: rank_file (MCA v2.0, API v2.0, Component v1.8)
               MCA rmaps: resilient (MCA v2.0, API v2.0, Component v1.8)
               MCA rmaps: round_robin (MCA v2.0, API v2.0, Component v1.8)
      * MCA rmaps: seq (MCA v2.0, API v2.0, Component v1.8)*
               MCA rmaps: staged (MCA v2.0, API v2.0, Component v1.8)

Any suggestions?

Many thanks,
Bill