[PTen]elementwise_sub kernel refactor #37260
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chenwhql
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Nov 17, 2021
| @@ -96,6 +96,40 @@ PD_DLL_DECL Tensor add(const Tensor& x, const Tensor& y) { | |||
| return out; | |||
| } | |||
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| PD_DLL_DECL Tensor subtract(const Tensor& x, const Tensor& y) { | |||
| // 1. Get kernel signature and kernel | |||
| auto kernel_key_set = ParseKernelKeyByInputArgs(x); | |||
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目前对于add和sub，这里应该是不仅根据x来确定kernel类型，可以参考原先elementwise的GetExpectedKernelType
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好的，这个我记个TODO，elementwise算子迁移后改一下
| void ElementwiseSub(const CPUContext& dev_ctx, | ||
| const DenseTensor& x, | ||
| const DenseTensor& y, | ||
| int axis, |
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这个axis参数会在原先哪些场景用到，API已经没有这个参数了，我们能否去掉？
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不行，axis是用来broadcast用的
chenwhql
approved these changes
Nov 17, 2021
Avin0323
approved these changes
Nov 18, 2021
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elementwise_sub Kernel refactor