hdiagdev.h

  /*             Parallel Sparse BLAS   GPU plugin  */
  /*   (C) Copyright 2013 */

  /*                      Salvatore Filippone */
  /*                      Alessandro Fanfarillo */
 
  /* Redistribution and use in source and binary forms, with or without */
  /* modification, are permitted provided that the following conditions */
  /* are met: */
  /*   1. Redistributions of source code must retain the above copyright */
  /*      notice, this list of conditions and the following disclaimer. */
  /*   2. Redistributions in binary form must reproduce the above copyright */
  /*      notice, this list of conditions, and the following disclaimer in the */
  /*      documentation and/or other materials provided with the distribution. */
  /*   3. The name of the PSBLAS group or the names of its contributors may */
  /*      not be used to endorse or promote products derived from this */
  /*      software without specific written permission. */
 
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#ifndef _HDIAGDEV_H_
#define _HDIAGDEV_H_

#include "cintrf.h"
#include "vectordev.h"
#include "hdia.h"

struct HdiagDevice
{
  // Compressed matrix
  void *cM; //it can be float or double

  // offset (same size of cM)
  int *hdiaOffsets;

  int *hackOffsets;

  int hackCount;

  int rows;

  int cols;


  int hackSize;

  int allocationHeight;

};

typedef struct HdiagDeviceParams
{			
  
  unsigned int elementType;
  
  // Number of rows.
  // Used to allocate rS array
  unsigned int rows;
  //unsigned int hackOffsLength;
  
  // Number of columns.
  // Used for error-checking
  unsigned int columns; 

  unsigned int hackSize;
  unsigned int hackCount;
  unsigned int allocationHeight;


} HdiagDeviceParams;



HdiagDeviceParams getHdiagDeviceParams(unsigned int rows, unsigned int columns, 
				       unsigned int allocationHeight, unsigned int hackSize,
				       unsigned int hackCount, unsigned int elementType);

int FallocHdiagDevice(void** deviceMat, unsigned int rows, unsigned int cols, 
		      unsigned int allocationHeight, unsigned int hackSize,
		      unsigned int hackCount, unsigned int elementType);

int allocHdiagDevice(void ** remoteMatrix, HdiagDeviceParams* params);


void freeHdiagDevice(void* remoteMatrix);

int writeHdiagDeviceFloat(void* deviceMat, float* val, int* hdiaOffsets, int *hackOffsets);
int spmvHdiagDeviceFloat(void *deviceMat, float alpha, void* deviceX, 
			  float beta, void* deviceY);

int writeHdiagDeviceDouble(void* deviceMat, double* val, int* hdiaOffsets, int *hackOffsets);
int spmvHdiagDeviceDouble(void *deviceMat, double alpha, void* deviceX, 
			  double beta, void* deviceY);


#endif