fix bug in OpKernel register macro #3059
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wangkuiyi
requested changes
Jul 26, 2017
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| bool operator==(const OpKernelKey& o) const { return place_ == o.place_; } | ||
| bool operator==(const OpKernelKey& o) const { |
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Operator应该是不可比较的。operator==应该改成 IsSameDevice
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这里比较的不是Operator，是OpKernelKey；目的是区分CPU和GPU对应着不同的OpKernel。
这里重载operator== 主要是当OpKernelKey作为unorder_map的key时，需要重载一个判断key是否相同的方法。
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这里会触发 GPUPlace(0) 与 GPUPlace(1) 对应不是一个OpKernel的bug
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能解释下这个bug的触发场景么，看起来之前编译就应该报错才对？ |
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@jacquesqiao REGISTER_OP_GPU_KERNEL/REGISTER_OP_CPU_KERNEL宏的展开分别在.cu 和 .cc里面，因此之前不会有冲突。 |
wangkuiyi
approved these changes
Jul 27, 2017
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