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From GitBox <...@apache.org>
Subject [GitHub] [singa] chrishkchris opened a new issue #680: Propose to upgrade RNN operation buffering for Graph
Date Wed, 15 Apr 2020 03:42:59 GMT
chrishkchris opened a new issue #680: Propose to upgrade RNN operation buffering for Graph

URL: https://github.com/apache/singa/issues/680
 
 
   In singa/examples/rnn/train.py,
   
   When we run it with Graph using Sequential, i.e. line 200: model.graph(True, True), the
training can complete without error.
   
   However, when we run it with Graph using node input dependencies,  i.e. line 200: model.graph(True,
False), it will display the error as below:
   
   ![errorseq](https://user-images.githubusercontent.com/38325429/79296212-5eccbd80-7f0d-11ea-96f3-8e1badbb4b10.png)
   
   Summarized from some discussion with @XJDKC, the error may be due to the following:
   
   1. There may be some operations we have used but did not specify read_blocks and write_blocks
well
   2.  Hence, some operations are performed in advance because the operation is not buffer
as required  
   
   Therefore, to support computation of graph using node input dependencies, we may need to
update the buffering of some RNN operation.
   

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