/mnt/hgfs/VMWare/cudpp/src/cudpp/cudpp_spmvmult.h File Reference

Scan functionality header file - contains CUDPP interface (not public) More...

Functions
void	allocSparseMatrixVectorMultiplyStorage (CUDPPSparseMatrixVectorMultiplyPlan *plan, const void *A, const unsigned int *rowindx, const unsigned int *indx)
	Allocate intermediate product, flags and rowFindx (index of the last element of each row) array .
void	freeSparseMatrixVectorMultiplyStorage (CUDPPSparseMatrixVectorMultiplyPlan *plan)
	Deallocate intermediate product, flags and rowFindx (index of the last element of each row) array .
void	cudppSparseMatrixVectorMultiplyDispatch (void *d_y, const void *d_x, const CUDPPSparseMatrixVectorMultiplyPlan *plan)
	Dispatch function to perform a sparse matrix-vector multiply with the specified configuration.

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Detailed Description

Scan functionality header file - contains CUDPP interface (not public)

cudpp_spmvmult.h

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Function Documentation

void allocSparseMatrixVectorMultiplyStorage	(	CUDPPSparseMatrixVectorMultiplyPlan *	plan,
		const void *	A,
		const unsigned int *	rowindx,
		const unsigned int *	indx
	)

Allocate intermediate product, flags and rowFindx (index of the last element of each row) array .

Parameters:

[in]	plan	Pointer to CUDPPSparseMatrixVectorMultiplyPlan class containing sparse matrix-vector multiply options, number of non-zero elements and number of rows which is used to compute storage requirements
[in]	A	The matrix A
[in]	rowindx	The indices of elements in A which are the first element of their row
[in]	indx	The column number for each element in A

void freeSparseMatrixVectorMultiplyStorage

(

CUDPPSparseMatrixVectorMultiplyPlan *

plan

)

Deallocate intermediate product, flags and rowFindx (index of the last element of each row) array .

These arrays must have been allocated by allocSparseMatrixVectorMultiplyStorage(), which is called by the constructor of CUDPPSparseMatrixVectorMultiplyPlan.

Parameters:

[in]

plan

Pointer to CUDPPSparseMatrixVectorMultiplyPlan plan initialized by its constructor.

void cudppSparseMatrixVectorMultiplyDispatch	(	void *	d_y,
		const void *	d_x,
		const CUDPPSparseMatrixVectorMultiplyPlan *	plan
	)

Dispatch function to perform a sparse matrix-vector multiply with the specified configuration.

This is the dispatch routine which calls sparseMatrixVectorMultiply() with appropriate template parameters and arguments

Parameters:

[out]	d_y	The output vector for y = A*x
[in]	d_x	The x vector for y = A*x
[in]	plan	The sparse matrix plan and data