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psblas3/cuda/spgpu/hdia.h

160 lines
6.1 KiB
C

#pragma once
/*
* spGPU - Sparse matrices on GPU library.
*
* Copyright (C) 2010 - 2013
* Davide Barbieri - University of Rome Tor Vergata
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 3 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "core.h"
/** \addtogroup diaFun DIA/HDIA Format
* @{
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* \fn spgpuShdiaspmv (spgpuHandle_t handle, float* z, const float *y, float alpha, const float* dM, const int* offsets, int hackSize, const int* hackOffsets, int rows, int cols, const float *x, float beta)
* Computes single precision z = alpha*A*x + beta*y, with A stored in Hacked Diagonal Format on GPU.
* \param handle The spgpu handle used to call this routine
* \param z The output vector of the routine. z could be y, but not y + k (i.e. an overlapping area over y, but starting from a base index different from y).
* \param y The y input vector
* \param alpha The alpha scalar
* \param dM The stacked HDIA non zero values allocation pointer
* \param offsets The stacked HDIA diagonals offsets vector
* \param hackSize The constant size of every hack (must be a multiple of 32)
* \param hackOffsets the array of base index offset for every hack of HDIA offsets vector, plus a last value equal to the size of the offsets vector
* \param rows the rows count
* \param cols the columns count
* \param x the x vector
* \param beta the beta scalar
*/
void
spgpuShdiaspmv (spgpuHandle_t handle,
float* z,
const float *y,
float alpha,
const float* dM,
const int* offsets,
int hackSize,
const int* hackOffsets,
int rows,
int cols,
const float *x,
float beta);
/**
* \fn spgpuDhdiaspmv (spgpuHandle_t handle, double* z, const double *y, double alpha, const double* dM, const int* offsets, int hackSize, const int* hackOffsets, int rows, int cols, const double *x, double beta)
* Computes double precision z = alpha*A*x + beta*y, with A stored in Hacked Diagonal Format on GPU.
* \param handle The spgpu handle used to call this routine
* \param z The output vector of the routine. z could be y, but not y + k (i.e. an overlapping area over y, but starting from a base index different from y).
* \param y The y input vector
* \param alpha The alpha scalar
* \param dM The stacked HDIA non zero values allocation pointer
* \param offsets The stacked HDIA diagonals offsets vector
* \param hackSize The constant size of every hack (must be a multiple of 32)
* \param hackOffsets the array of base index offset for every hack of HDIA offsets vector, plus a last value equal to the size of the offsets vector
* \param rows the rows count
* \param cols the columns count
* \param x the x vector
* \param beta the beta scalar
*/
void
spgpuDhdiaspmv (spgpuHandle_t handle,
double* z,
const double *y,
double alpha,
const double* dM,
const int* offsets,
int hackSize,
const int* hackOffsets,
int rows,
int cols,
const double *x,
double beta);
/**
* \fn spgpuChdiaspmv (spgpuHandle_t handle, cuFloatComplex* z, const cuFloatComplex *y, cuFloatComplex alpha, const cuFloatComplex* dM, const int* offsets, int hackSize, const int* hackOffsets, int rows, int cols, const cuFloatComplex *x, cuFloatComplex beta)
* Computes single precision complex z = alpha*A*x + beta*y, with A stored in Hacked Diagonal Format on GPU.
* \param handle The spgpu handle used to call this routine
* \param z The output vector of the routine. z could be y, but not y + k (i.e. an overlapping area over y, but starting from a base index different from y).
* \param y The y input vector
* \param alpha The alpha scalar
* \param dM The stacked HDIA non zero values allocation pointer
* \param offsets The stacked HDIA diagonals offsets vector
* \param hackSize The constant size of every hack (must be a multiple of 32)
* \param hackOffsets the array of base index offset for every hack of HDIA offsets vector, plus a last value equal to the size of the offsets vector
* \param rows the rows count
* \param cols the columns count
* \param x the x vector
* \param beta the beta scalar
*/
void
spgpuChdiaspmv (spgpuHandle_t handle,
cuFloatComplex* z,
const cuFloatComplex *y,
cuFloatComplex alpha,
const cuFloatComplex* dM,
const int* offsets,
int hackSize,
const int* hackOffsets,
int rows,
int cols,
const cuFloatComplex *x,
cuFloatComplex beta);
/**
* \fn spgpuZhdiaspmv (spgpuHandle_t handle, cuDoubleComplex* z, const cuDoubleComplex *y, cuDoubleComplex alpha, const cuDoubleComplex* dM, const int* offsets, int hackSize, const int* hackOffsets, int rows, int cols, const cuDoubleComplex *x, cuDoubleComplex beta)
* Computes double precision complex z = alpha*A*x + beta*y, with A stored in Hacked Diagonal Format on GPU.
* \param handle The spgpu handle used to call this routine
* \param z The output vector of the routine. z could be y, but not y + k (i.e. an overlapping area over y, but starting from a base index different from y).
* \param y The y input vector
* \param alpha The alpha scalar
* \param dM The stacked HDIA non zero values allocation pointer
* \param offsets The stacked HDIA diagonals offsets vector
* \param hackSize The constant size of every hack (must be a multiple of 32)
* \param hackOffsets the array of base index offset for every hack of HDIA offsets vector, plus a last value equal to the size of the offsets vector
* \param rows the rows count
* \param cols the columns count
* \param x the x vector
* \param beta the beta scalar
*/
void
spgpuZhdiaspmv (spgpuHandle_t handle,
cuDoubleComplex* z,
const cuDoubleComplex *y,
cuDoubleComplex alpha,
const cuDoubleComplex* dM,
const int* offsets,
int hackSize,
const int* hackOffsets,
int rows,
int cols,
const cuDoubleComplex *x,
cuDoubleComplex beta);
/** @}*/
#ifdef __cplusplus
}
#endif