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Sparse Kernel for Lookup Table Grad Operator #4904

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@QiJune QiJune commented Oct 18, 2017

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@QiJune QiJune changed the title Sparse Kernel for Lookup Grad Operator Sparse Kernel for Lookup Table Grad Operator Oct 18, 2017
@@ -457,6 +457,16 @@ class RuntimeInferShapeContext : public InferShapeContext {
return true;
}

const Variable* InputVar(const std::string& name) const {
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@jacquesqiao jacquesqiao Oct 19, 2017

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why should add two special interfaces

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@jacquesqiao Since we will set var type in compile-time. And our programDesc will pass to Executor to create variable. So we should set variable in Executor. Like GetMutable<Tensor>/GetMutable<SelectedRows>/GetMutable<LoDTensor>.
At run-time, we can just get tensor to set dims and get dims.
Currently, we do not implement variable type inference in Executor. And variable type is set to LoDTensor by default at run-time infershape stage.
I add these two interfaces to get a variable at run-time infershape stage and set variable type manaully. This will be fixed if our whole compile-time framework is done.

@QiJune QiJune closed this Oct 27, 2017
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