anirudh2290 commented on issue #14738: [MXNet-14340] fix bug in legacy-op-util URL: https://github.com/apache/incubator-mxnet/pull/14738#issuecomment-485609039 If I understand correctly this caching was added to make the tblobs point to the same data. This tblob copy involves shape, dptr and type and the point was to avoid the cost at every iteration when it is not necessary. The split breaks probably because we call backward on two different outputs and thus these tblobs are also holding the wrong data. I think instead of removing this, if you can find a way to clear cache only for this op, that would probably be better. One (dirty) way is to check the op name and skip.
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