#if !defined(__CUSPARSEMATIMPL)
#define __CUSPARSEMATIMPL

#include <../src/vec/vec/impls/seq/seqcusp/cuspvecimpl.h>

#include <cusparse_v2.h>

/* New Way */
#include "tx_sparse_interface.h"

#include <algorithm>
#include <vector>
#include <thrust/sort.h>
#include <thrust/fill.h>

/* Single instance of the cusparse handle for the class. */
cusparseHandle_t MAT_cusparseHandle=0;

MatCUSPARSEStorageFormat cusparseMatSolveStorageFormat=MAT_CUSPARSE_CSR;

struct Mat_SeqAIJCUSPARSETriFactors {
  GPU_Matrix_Ifc           *loTriFactorPtr; /* pointer for lower triangular (factored matrix) on GPU */
  GPU_Matrix_Ifc           *upTriFactorPtr; /* pointer for upper triangular (factored matrix) on GPU */
  CUSPARRAY                *tempvec;
  MatCUSPARSEStorageFormat format;   /* the storage format for the matrix on the device */
  PetscBool hasTranspose; /* boolean describing whether a transpose has been built or not */
  PetscBool isSymmOrHerm;  /* boolean describing whether the matrix is symmetric (hermitian) or not. This is used mostly for performance logging purposes. */
};

struct Mat_SeqAIJCUSPARSE {
  GPU_Matrix_Ifc           *mat; /* pointer to the matrix on the GPU */
  CUSPARRAY                *tempvec; /*pointer to a workvector to which we can copy the relevant indices of a vector we want to multiply */
  PetscInt                 nonzerorow; /* number of nonzero rows ... used in the flop calculations */
  MatCUSPARSEStorageFormat format;   /* the storage format for the matrix on the device */
  PetscBool hasTranspose; /* boolean describing whether a transpose has been built or not */
  PetscBool isSymmOrHerm;  /* boolean describing whether the matrix is symmetric (hermitian) or not. This is used mostly for performance logging purposes. */
};

PETSC_INTERN PetscErrorCode MatCUSPARSECopyToGPU(Mat);
#endif