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#ifndef _CUMATRIX_H_
#define _CUMATRIX_H_
#include <sstream>
#include "Matrix.h"
#include "cukernels.h"
namespace TNet {
template<typename _ElemT> class CuVector;
/**
* \brief Matrix for CUDA computing
*/
template<typename _ElemT>
class CuMatrix
{
typedef CuMatrix<_ElemT> ThisType;
public:
/// Default Constructor
CuMatrix<_ElemT>()
: mRows(0), mCols(0), mStride(0), mpCUData(NULL)
{ }
/// Constructor with memory initialisation
CuMatrix<_ElemT>(size_t rows, size_t cols)
: mRows(0), mCols(0), mStride(0), mpCUData(NULL)
{ Init(rows, cols); }
/// Destructor
~CuMatrix()
{ Destroy(); }
/// Dimensions
size_t Rows() const
{ return mRows; }
size_t Cols() const
{ return mCols; }
size_t Stride() const
{ return mStride; }
::MatrixDim Dim() const
{ ::MatrixDim d = {
static_cast<int>(mRows),
static_cast<int>(mCols),
static_cast<int>(mStride)
};
return d;
}
/// Get raw pointer
const _ElemT* pCUData() const
{ return mpCUData; }
_ElemT* pCUData()
{ return mpCUData; }
/// Get raw row pointer
const _ElemT* pCURowData(size_t r) const
{ assert(r < Rows()); return mpCUData+r*mStride; }
_ElemT* pCURowData(size_t r)
{ assert(r < Rows()); return mpCUData+r*mStride; }
/// Get size of matrix in bytes
size_t MSize() const
{ return mRows*mStride*sizeof(_ElemT); }
/// Get size of matrix row in bytes
size_t MRowSize() const
{ return mStride*sizeof(_ElemT); }
/// Allocate the memory
ThisType& Init(size_t rows, size_t cols);
/// Deallocate the memory
void Destroy();
/// Copy functions (reallocates when needed)
ThisType& CopyFrom(const CuMatrix<_ElemT>& rSrc);
ThisType& CopyFrom(const Matrix<_ElemT>& rSrc);
Matrix<_ElemT>& CopyTo(Matrix<_ElemT>& rDst) const;
/// Copy rowCnt rows from rSrc, starting by row srcOri,
/// copying to memory block starting by row dstOri
void CopyRows(size_t rowCnt, size_t srcOri, const CuMatrix<_ElemT>& rSrc, size_t dstOri);
/// Copy colCnt columns from rSrc, starting by col srcOri,
/// copying to memory block starting by row dstOri
void CopyCols(size_t colCnt, size_t srcOri, const CuMatrix<_ElemT>& rSrc, size_t dstOri);
// Math operations, some calling kernels
//
void SetZero();
void SetConst(_ElemT value)
{ Error("__func__ Not implemented"); }
/// Natural Logarithm of every elements
void ApplyLog()
{ Error("__func__ Not implemented"); }
/// Setting values to zero if mask[i][j]==0
void ApplyMask(const CuMatrix<BaseFloat>& mask)
{ Error("__func__ Not implemented"); }
/**
* \brief Apply Lasso function
*
* \param l1 \f$ L^1 \_ Norm \f$ function parameter
*
* Lasso: \f[ Y_{ij} = \left\{
* \begin{array}{lr}
* X_{ij} + l1 & , X_{ij} < -l1 \\
* 0 & , |X_{ij}| \le l1 \\
* X_{ij} - l1 & , X_{ij} > -l1
* \end{array}
* \right. \f]
*/
void ApplyL1(BaseFloat l1)
{ Error("__func__ Not implemented"); }
/// scale i'th column by scale[i]
void ScaleCols(const CuVector<_ElemT>& scale)
{ Error("__func__ Not implemented"); }
/// scale i'th row by scale[i]
void ScaleRows(const CuVector<_ElemT>& scale)
{ Error("__func__ Not implemented"); }
/// B = aplha * A + beta * B
void AddScaled(_ElemT alpha, const CuMatrix<_ElemT>& A, _ElemT beta)
{ Error("__func__ Not implemented"); }
/// B = aplha * row + beta * B
void AddScaledRow(_ElemT alpha, const CuVector<_ElemT>& row, _ElemT beta)
{ Error("__func__ Not implemented"); }
/// C = alpha * A(^T)*B(^T) + beta * C
void Gemm(char transa, char transb,
_ElemT alpha,
const CuMatrix<_ElemT>& A, const CuMatrix<_ElemT>& B,
_ElemT beta)
{ Error("__func__ Not implemented"); }
/// A = alpha * x*y^T + A
void BlasGer(_ElemT alpha,
const CuVector<_ElemT>& x, const CuVector<_ElemT>& y)
{ Error("__func__ Not implemented"); }
/// Multiply two matrices elementhwise: C = A .* C
void MulElem(const CuMatrix<_ElemT>& A)
{ Error("__func__ Not implemented"); }
/// A = log(A)
void LogElem()
{ Error("__func__ Not implemented"); }
void Print() const
{
Matrix<_ElemT> mat(Rows(),Cols());
CopyTo(mat);
std::cout << mat;
}
void CheckData()
{
Matrix<_ElemT> mat;
CopyTo(mat);
for(size_t i=0; i<Rows(); i++) {
for(size_t j=0; j<Cols(); j++) {
if(std::isnan(mat(i,j)) || std::isinf(mat(i,j))) {
std::ostringstream os;
os << "Invalid value:" << mat(i,j) << "at row"<<i<<" col"<<j<<"\n";
Error(os.str());
}
}
}
}
private:
size_t mRows;
size_t mCols;
size_t mStride;
_ElemT* mpCUData;
};
/// Prints the matrix dimensions and pointer to stream
template<typename _ElemT>
inline std::ostream& operator << (std::ostream& out, const CuMatrix<_ElemT>& mat)
{
out << "[CUMATRIX R" << mat.Rows() << " C" << mat.Cols() << " S" << mat.Stride()
<< " PTR" << mat.pCUData() << "]" << std::flush;
return out;
}
}
#include "cumatrix.tcc"
#endif
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