1: #pragma once

  3: #include <petscviennacl.h>
  4: #include <petsc/private/vecimpl.h>
  5: #include <petsc/private/deviceimpl.h>

  7: #include <algorithm>
  8: #include <vector>
  9: #include <string>
 10: #include <exception>

 12: #include "viennacl/vector.hpp"

 14: #define ViennaCLWaitForGPU() \
 15:   if (PetscViennaCLSynchronize) viennacl::backend::finish();

 17: typedef viennacl::vector<PetscScalar> ViennaCLVector;

 19: PETSC_EXTERN PetscErrorCode PetscViennaCLInit(void);

 21: PETSC_INTERN PetscErrorCode VecDotNorm2_SeqViennaCL(Vec, Vec, PetscScalar *, PetscScalar *);
 22: PETSC_INTERN PetscErrorCode VecPointwiseDivide_SeqViennaCL(Vec, Vec, Vec);
 23: PETSC_INTERN PetscErrorCode VecWAXPY_SeqViennaCL(Vec, PetscScalar, Vec, Vec);
 24: PETSC_INTERN PetscErrorCode VecMDot_SeqViennaCL(Vec, PetscInt, const Vec[], PetscScalar *);
 25: PETSC_INTERN PetscErrorCode VecSet_SeqViennaCL(Vec, PetscScalar);
 26: PETSC_INTERN PetscErrorCode VecMAXPY_SeqViennaCL(Vec, PetscInt, const PetscScalar *, Vec *);
 27: PETSC_INTERN PetscErrorCode VecAXPBYPCZ_SeqViennaCL(Vec, PetscScalar, PetscScalar, PetscScalar, Vec, Vec);
 28: PETSC_INTERN PetscErrorCode VecPointwiseMult_SeqViennaCL(Vec, Vec, Vec);
 29: PETSC_INTERN PetscErrorCode VecPlaceArray_SeqViennaCL(Vec, const PetscScalar *);
 30: PETSC_INTERN PetscErrorCode VecResetArray_SeqViennaCL(Vec);
 31: PETSC_INTERN PetscErrorCode VecReplaceArray_SeqViennaCL(Vec, const PetscScalar *);
 32: PETSC_INTERN PetscErrorCode VecDot_SeqViennaCL(Vec, Vec, PetscScalar *);
 33: PETSC_INTERN PetscErrorCode VecTDot_SeqViennaCL(Vec, Vec, PetscScalar *);
 34: PETSC_INTERN PetscErrorCode VecScale_SeqViennaCL(Vec, PetscScalar);
 35: PETSC_INTERN PetscErrorCode VecCopy_SeqViennaCL(Vec, Vec);
 36: PETSC_INTERN PetscErrorCode VecSwap_SeqViennaCL(Vec, Vec);
 37: PETSC_INTERN PetscErrorCode VecAXPY_SeqViennaCL(Vec, PetscScalar, Vec);
 38: PETSC_INTERN PetscErrorCode VecAXPBY_SeqViennaCL(Vec, PetscScalar, PetscScalar, Vec);
 39: PETSC_INTERN PetscErrorCode VecDuplicate_SeqViennaCL(Vec, Vec *);
 40: PETSC_INTERN PetscErrorCode VecNorm_SeqViennaCL(Vec, NormType, PetscReal *);
 41: PETSC_INTERN PetscErrorCode VecViennaCLCopyToGPU(Vec);
 42: PETSC_INTERN PetscErrorCode VecViennaCLAllocateCheck(Vec);
 43: PETSC_EXTERN PetscErrorCode VecViennaCLAllocateCheckHost(Vec);
 44: PETSC_EXTERN PetscErrorCode VecCreate_SeqViennaCL(Vec);
 45: PETSC_INTERN PetscErrorCode VecCreate_SeqViennaCL_Private(Vec, const ViennaCLVector *);
 46: PETSC_INTERN PetscErrorCode VecDestroy_SeqViennaCL(Vec);
 47: PETSC_INTERN PetscErrorCode VecAYPX_SeqViennaCL(Vec, PetscScalar, Vec);
 48: PETSC_INTERN PetscErrorCode VecSetRandom_SeqViennaCL(Vec, PetscRandom);
 49: PETSC_INTERN PetscErrorCode VecGetArrayWrite_SeqViennaCL(Vec, PetscScalar **);
 50: PETSC_INTERN PetscErrorCode VecGetArray_SeqViennaCL(Vec, PetscScalar **);
 51: PETSC_INTERN PetscErrorCode VecRestoreArray_SeqViennaCL(Vec, PetscScalar **);

 53: PETSC_INTERN PetscErrorCode VecCreate_MPIViennaCL_Private(Vec, PetscBool, PetscInt, const ViennaCLVector *);

 55: PETSC_INTERN PetscErrorCode VecViennaCLCopyToGPU_Public(Vec);
 56: PETSC_INTERN PetscErrorCode VecViennaCLAllocateCheck_Public(Vec);

 58: struct Vec_ViennaCL {
 59:   viennacl::vector<PetscScalar> *GPUarray;           // this always holds the GPU data
 60:   viennacl::vector<PetscScalar> *GPUarray_allocated; // if the array was allocated by PETSc this is its pointer
 61: };