foreach(x coll-allgather coll-allgatherv coll-allreduce coll-alltoall coll-alltoallv coll-barrier coll-bcast
coll-gather coll-reduce coll-reduce-scatter coll-scatter macro-sample pt2pt-dsend pt2pt-pingpong
foreach(x coll-allgather coll-allgatherv coll-allreduce coll-alltoall coll-alltoallv coll-barrier coll-bcast
coll-gather coll-reduce coll-reduce-scatter coll-scatter macro-sample pt2pt-dsend pt2pt-pingpong