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From "wangwei (JIRA)" <>
Subject [jira] [Created] (SINGA-156) Remove the dependency on ZMQ for single process training
Date Fri, 01 Apr 2016 08:58:25 GMT
wangwei created SINGA-156:

             Summary: Remove the dependency on ZMQ for single process training
                 Key: SINGA-156
             Project: Singa
          Issue Type: Improvement
            Reporter: wangwei

SINGA depends on ZMQ and CZMQ, which are used for both intra and inter process communication.
In fact, for training using a single process (multiple threads), we can avoid ZMQ and CZMQ
for the intra-process communication. Hence, we can compile SINGA without ZMQ and CZMQ for
single process training.
This ticket implements the intra-process communication by assigning a thread-safe queue for
each socket (i.e., dealer and router). The sender pushes the msg onto the receiver's queue.

There is a macro 'USE_ZMQ', which controls the compiling of ZMQ related code. If USE_ZMQ is
not defined, SINGA can only run for single process. Otherwise, SINGA uses ZMQ for inter-process
communication for training over multiple processes.

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