* scaffold of the code
* some scratch and options change
* NCCL mostly done, supporting API#1
* interface 2.1 2.2 scratch
* put code into ray and fix some importing issues
* add an addtional Rendezvous class to safely meet at named actor
* fix some small bugs in nccl_util
* some small fix
* scaffold of the code
* some scratch and options change
* NCCL mostly done, supporting API#1
* interface 2.1 2.2 scratch
* put code into ray and fix some importing issues
* add an addtional Rendezvous class to safely meet at named actor
* fix some small bugs in nccl_util
* some small fix
* add a Backend class to make Backend string more robust
* add several useful APIs
* add some tests
* added allreduce test
* fix typos
* fix several bugs found via unittests
* fix and update torch test
* changed back actor
* rearange a bit before importing distributed test
* add distributed test
* remove scratch code
* auto-linting
* linting 2
* linting 2
* linting 3
* linting 4
* linting 5
* linting 6
* 2.1 2.2
* fix small bugs
* minor updates
* linting again
* auto linting
* linting 2
* final linting
* Update python/ray/util/collective_utils.py
Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
* Update python/ray/util/collective_utils.py
Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
* Update python/ray/util/collective_utils.py
Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
* added actor test
* lint
* remove local sh
* address most of richard's comments
* minor update
* remove the actor.option() interface to avoid changes in ray core
* minor updates
Co-authored-by: YLJALDC <dal177@ucsd.edu>
Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
