add split and merge lod tensor operator #5537
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QiJune
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please add an issue to describe the background of this PR~ |
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I think Split/Merge_Lod_Tensor are not good because there are many situations that need to split and merge LoDTensorArray in different ways. |
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@jacquesqiao Yes, it seems that ConditionalFilterOp/ConditionalMergeOp is more accurate. We actually use a mask of bool column vector to filter a LoDTensor. And the LoDTensor is filtered into two parts, true part and false part. Each part will be sent to a separate block. |
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Fix #5601