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https://issues.apache.org/jira/browse/SINGA-156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15245179#comment-15245179
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wangwei commented on SINGA-156:
-------------------------------
it is controlled by the configuration options,
./configure --enable-dist
will define USE_ZMQ.
This ticket has already been resolved.
> Remove the dependency on ZMQ for single process training
> --------------------------------------------------------
>
> Key: SINGA-156
> URL: https://issues.apache.org/jira/browse/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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