We are starting to play with FCA on our Mellonox based IB fabric.
I noticed from ompi_info that FCA support for a lot of collectives are disabled
by default:
Any idea why only barrier/bcast/reduce are on by default and all the more
complex values are disabled?
MCA coll: parameter "coll_fca_enable_barrier" (current value:
<1>, data source: default value)
MCA coll: parameter "coll_fca_enable_bcast" (current value:
<1>, data source: default value)
MCA coll: parameter "coll_fca_enable_reduce" (current value:
<1>, data source: default value)
MCA coll: parameter "coll_fca_enable_reduce_scatter" (current
value: <0>, data source: default value)
MCA coll: parameter "coll_fca_enable_allreduce" (current value:
<1>, data source: default value)
MCA coll: parameter "coll_fca_enable_allgather" (current value:
<1>, data source: default value)
MCA coll: parameter "coll_fca_enable_allgatherv" (current
value: <1>, data source: default value)
MCA coll: parameter "coll_fca_enable_gather" (current value:
<0>, data source: default value)
MCA coll: parameter "coll_fca_enable_gatherv" (current value:
<0>, data source: default value)
MCA coll: parameter "coll_fca_enable_alltoall" (current value:
<0>, data source: default value)
MCA coll: parameter "coll_fca_enable_alltoallv" (current value:
<0>, data source: default value)
MCA coll: parameter "coll_fca_enable_alltoallw" (current value:
<0>, data source: default value)
Brock Palen
www.umich.edu/~brockp
CAEN Advanced Computing
[email protected]
(734)936-1985
