InfiniTensor/include/operators/GBMM.h

57 lines
1.6 KiB
C++

#pragma once
#include "core/operator.h"
#include <assert.h>
namespace infini {
/**
* @brief General band matrix multiplication. See
* https://cscproxy.mpi-magdeburg.mpg.de/mpcsc/benner/pub/brdeq-cle2014.pdf for
* detail.
*
*/
class GBMMObj : public OperatorObj {
private:
int dilation;
ActType act;
int b, m, w, n;
public:
/**
* @brief Construct a new GBMM object.
*
* @param graph The computation graph that this operator belongs to.
* @param A The input tensor.
* @param B The input tensor.
* @param C C is the output of G2BMM. If outputs are going to be created in
* the constructor, C should be an empty Ref.
* @param dilation The dilation of the attention window.
* @param bias The bias tensor.
* @param act The activation.
*/
GBMMObj(GraphObj *graph, Tensor A, Tensor B, Tensor C, const int dilation,
Tensor bias = nullptr, ActType act = ActType::None);
OP_CLONE(GBMMObj);
std::string toString() const override;
optional<vector<Shape>> inferShape(const TensorVec &inputs) override;
int numInputs() const override { return 2; }
int numOutputs() const override { return 1; }
int getDilation() const { return dilation; }
Tensor getBias() const { return inputs[2]; }
ActType getAct() const { return act; }
int getB() const { return b; }
int getM() const { return m; }
int getW() const { return w; }
int getN() const { return n; }
auto getBMWND() const { return tuple{b, m, w, n, dilation}; }
private:
vector<int> getWorkloadVector() const override;
vector<int> getOpAttrVector() const override;
};
} // namespace infini