[jira] [Created] (MADLIB-1330) DL: Do not compile model for predict and add GPU support

["Nandish Jayaram (JIRA)" <ji...@apache.org>]

Nandish Jayaram created MADLIB-1330:
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             Summary: DL: Do not compile model for predict and add GPU support
                 Key: MADLIB-1330
                 URL: https://issues.apache.org/jira/browse/MADLIB-1330
             Project: Apache MADlib
          Issue Type: Improvement
          Components: Deep Learning
            Reporter: Nandish Jayaram
             Fix For: v1.16


In internal_keras_predict, we compile the model for every row. Starting from keras 1.0.3, keras predict does not need a compiled model. This will make our current predict code(which does not use SD) easier and hopefully slightly faster even with CPU. See more details here https://github.com/keras-team/keras/issues/3074

Acceptance:
1. Validate that removing the compile code does not impact the accuracy of the results
2. Add new optional param named use_gpu in predict interface.



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