[jira] [Assigned] (SYSTEMML-1806) setTextValue in DMLConfig is not behaving correctly

["Nakul Jindal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SYSTEMML-1806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nakul Jindal reassigned SYSTEMML-1806:
--------------------------------------

    Assignee: Nakul Jindal

> setTextValue in DMLConfig is not behaving correctly
> ---------------------------------------------------
>
>                 Key: SYSTEMML-1806
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1806
>             Project: SystemML
>          Issue Type: Bug
>          Components: Runtime
>            Reporter: Nakul Jindal
>            Assignee: Nakul Jindal
>             Fix For: SystemML 1.0
>
>
> The problem was discovered when trying to set a configuration property from MLContext.
> Specifically, it was to try and restrict which GPU to use for the program. Currently this is done via a System property.
> This was the script:
> {code}
> unet = Caffe2DML(spark, solver='solver.prototxt', input_shape=img_shape)
> unet.setGPU(True)
> unet.setForceGPU(True)
> unet.setConfigProperty("systemml.stats.extraGPU", "true")
> unet.setConfigProperty("systemml.gpu.availableGPUs", "1")
> {code}
> Here is what I discovered:
> The first time [setText|https://github.com/apache/systemml/blob/master/src/main/java/org/apache/sysml/conf/DMLConfig.java#L266] value is called on an empty DMLConfig (by calling new DMLConfig()) as opposed to by parsing a file, a new _xmlRoot is initialized.
> Thereafter, since the _xmlRoot is not null, it tries to call getElementsByTagName, even when the tag is different. In the example above, the tag is {{systemml.stats.extraGPU"}} the first time around and {{systemml.gpu.availableGPUs}} the second time around.
> The bug is in [setText|https://github.com/apache/systemml/blob/master/src/main/java/org/apache/sysml/conf/DMLConfig.java#L253]



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