* Fix old documentation for channel_recv
* Initial design of CSP select
* Redesign channel implementation for Select Op
* Remove unecessary header
* Initial checkin of select op, currently will read all the conditional_op in the cases block and also pull out all channels involved in the select.
* Init python select op API
* Python select bug fix when checking op creates block
* Add case_to_execute as (a) input to select, (b) into the passed inputs into the select op
* Add in addition code for select op
* Init fibonacci test from python
* implement fibonnaci sequence test
* update fib unit test
* Improve select test cases
* Shorten non-pep-8-ed lines
* Add methods on channel needed by select op
* Fix compile issues, finish implementation, still need to debug code
* Fix issue with fibonncci test, it works now!
* Change QueueMessage callback to take in an ChannelAction enum, fix select unit test
* Fix case attributes
* Fix issue with select control flow
* Make cases - previously on each selectcase conditional_block - attributes to select
* Use class constants for type of channel
* Change select op to take in "cases" attribute
* return boolean from select callback function to tell Channel if this RECV or SEND should be executed
* Improve attributes and inputs comments on select op
* Fix issues with python unit test
* Assert fibonacci final output
* Fix issue when channel name / channel var is null for "default" case in select op
* Assert base select test output
* Make QueueMessage use shared pointer and modify the order of the callback
* Fixing the order in which the callback is called
* Move channel utility methods to paddle/fluid/operators/concurrency/channel_util
* Create channel_util and move channel util methods
* Fix crash when calling select_op
* Fix deadlock
* Fix issue of channel destructor deadlock
* Fix precommit issues
* Accidentally checked in changes to beam_search_op, reverting change.
* Fix dependency issue in concurrency cmake
* add device_context dependency for concurrency target
* add fp16 mul op support
* small fix
* fix bug
* small fix
* fix PADDLE_WITH_CUDA compiling issue
* reorg code
* test for pybind
* treate as float16 as uint16_t in pybind
* bind np.float16 to paddle float16
* small fix
* clean code
* remove redundancy
* fix mul_op test
* address comments
* small fix
* add is_float16_supported func
* "exported scatter to python"
* Revert ""exported scatter to python""
This reverts commit 38745a626c3f937bec836c92c98a76deadf0a03d.
* "polish scatter and export to python"
Yu Yang
Kexin Zhao
Xin Pan
Tao Luo
qingqing01
Kexin Zhao
Xi Chen
ranqiu
Thuan Nguyen
dzhwinter
chengduo
Abhinav Arora
Yibing Liu
chengduoZH
Cao Ying
武毅