OSU benchmarks

[ohm314]

This benchmark module allows running and post-processing:

• osu_latency
• osu_bw
• osu_allgather
• osu_allgatherv

which are the most common benchmarks used for evaluation of interconnect performance.

[coveralls]

Coverage increased (+0.1%) to 85.44% when pulling 1f084ca on osu_benchmark into d69aa69 on master.

[coveralls]

Coverage decreased (-1.4%) to 84.137% when pulling a744997 on osu_benchmark into ae55a0c on master.

[tristan0x]

If this one is ready to be reviewed, can you please rebase master branch first @ohm314 ?

[ohm314]

OK, I'm merging master into it (can rebasing be also done from the github web interface?). Otherwise this branch is ready to be merged back.

[tristan0x]

osu was not referenced in setup.py. I added a unit-test so that it won't happen in the future.

If possible, please rebase instead of merging. It keeps the history much clearer.

[tristan0x]

LGTM!
I am glad we have this one.