【slice】combine Stridecopy three path #74049
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PR Category
Execute Infrastructure
PR Types
Improvements
Description
pcard-67164
#74038 Todo:
stride_copy内部分成了三个路径，input.numel = 0; input.numel = output.numel; input canexpand to output. 每个路径中又根据Rank, vecsize 分为4*9个分支. 代码非常多. 此PR 合并为input canexpand to output 一条路径，这会导致cuda kernel 在特殊的路径下多计算一次input_idx = i % input_numel , 可能会影响性能