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fix memory leak during broadcasting#125

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pcmoritz wants to merge 1 commit into
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Open

fix memory leak during broadcasting#125
pcmoritz wants to merge 1 commit into
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memory

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@pcmoritz

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found and reported by @nhe150, fixes issue #123

@nhe150

nhe150 commented May 20, 2016

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get rid of destroy since there is a lot of testing based on driver still need the variable. only put in unpersist().

Find it out the hard way.

@nhe150

nhe150 commented May 20, 2016

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there is interleaving issue to use unpersist() also.

@nhe150

nhe150 commented May 20, 2016

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find out it is due to learning rate issue. both destroy and unpersist() is good to be used.
some learning rate will cause worker to learn nothing, the weight become NaN. :(

@nhe150

nhe150 commented Jun 7, 2016

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This is also related to bytedeco/javacpp-presets#238

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