host_matrix_bcsr.cpp

// **************************************************************************
//
//    PARALUTION   www.paralution.com
//
//    Copyright (C) 2015  PARALUTION Labs UG (haftungsbeschränkt) & Co. KG
//                        Am Hasensprung 6, 76571 Gaggenau
//                        Handelsregister: Amtsgericht Mannheim, HRA 706051
//                        Vertreten durch:
//                        PARALUTION Labs Verwaltungs UG (haftungsbeschränkt)
//                        Am Hasensprung 6, 76571 Gaggenau
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//                        Geschäftsführer: Dimitar Lukarski, Nico Trost
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, either version 3 of the License, or
//    (at your option) any later version.
//
//    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.
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//    You should have received a copy of the GNU General Public License
//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// **************************************************************************



// PARALUTION version 1.1.0 


#include "../../utils/def.hpp"
#include "host_matrix_bcsr.hpp"
#include "host_matrix_csr.hpp"
#include "host_conversion.hpp"
#include "host_vector.hpp"
#include "../../utils/log.hpp"
#include "../../utils/allocate_free.hpp"

#include <complex>

#ifdef _OPENMP
#include <omp.h>
#else
#define omp_set_num_threads(num) ;
#endif

namespace paralution {

template <typename ValueType>
HostMatrixBCSR<ValueType>::HostMatrixBCSR() {

  // no default constructors
  LOG_INFO("no default constructor");
  FATAL_ERROR(__FILE__, __LINE__);

}

template <typename ValueType>
HostMatrixBCSR<ValueType>::HostMatrixBCSR(const Paralution_Backend_Descriptor local_backend) {

  LOG_DEBUG(this, "HostMatrixBCSR::HostMatrixBCSR()",
            "constructor with local_backend");

  this->set_backend(local_backend);

  // not implemented yet
  FATAL_ERROR(__FILE__, __LINE__);
}

template <typename ValueType>
HostMatrixBCSR<ValueType>::~HostMatrixBCSR() {

  LOG_DEBUG(this, "HostMatrixBCSR::~HostMatrixBCSR()",
            "destructor");

  this->Clear();

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::info(void) const {

  //TODO
  LOG_INFO("HostMatrixBCSR<ValueType>");

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::Clear() {

  if (this->nnz_ > 0) {

    this->nrow_ = 0;
    this->ncol_ = 0;
    this->nnz_  = 0;

  }

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::AllocateBCSR(const int nnz, const int nrow, const int ncol) {

  assert( nnz   >= 0);
  assert( ncol  >= 0);
  assert( nrow  >= 0);

  if (this->nnz_ > 0)
    this->Clear();

  if (nnz > 0) {

    this->nrow_ = nrow;
    this->ncol_ = ncol;
    this->nnz_  = nnz;

  }

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::CopyFrom(const BaseMatrix<ValueType> &mat) {

  // copy only in the same format
  assert(this->get_mat_format() == mat.get_mat_format());

  if (const HostMatrixBCSR<ValueType> *cast_mat = dynamic_cast<const HostMatrixBCSR<ValueType>*> (&mat)) {
    
    this->AllocateBCSR(cast_mat->nnz_, cast_mat->nrow_, cast_mat->ncol_);

    assert((this->nnz_  == cast_mat->nnz_)  &&
           (this->nrow_ == cast_mat->nrow_) &&
           (this->ncol_ == cast_mat->ncol_) );

    if (this->nnz_ > 0) {

      _set_omp_backend_threads(this->local_backend_, this->nrow_);

      // TODO
      FATAL_ERROR(__FILE__, __LINE__);

    }

  } else {

    // Host matrix knows only host matrices
    // -> dispatching
    mat.CopyTo(this);

  }

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::CopyTo(BaseMatrix<ValueType> *mat) const {

  mat->CopyFrom(*this);

}

template <typename ValueType>
bool HostMatrixBCSR<ValueType>::ConvertFrom(const BaseMatrix<ValueType> &mat) {

  this->Clear();

  // empty matrix is empty matrix
  if (mat.get_nnz() == 0)
    return true;

  if (const HostMatrixBCSR<ValueType> *cast_mat = dynamic_cast<const HostMatrixBCSR<ValueType>*> (&mat)) {

    this->CopyFrom(*cast_mat);
    return true;

  }

  if (const HostMatrixCSR<ValueType> *cast_mat = dynamic_cast<const HostMatrixCSR<ValueType>*> (&mat)) {

    this->Clear();
    int nnz = 0;

    // TODO
    //      csr_to_bcsr(cast_mat->nnz_, cast_mat->nrow_, cast_mat->ncol_,
    //                 cast_mat->mat_, &this->mat_, &nnz);
    FATAL_ERROR(__FILE__, __LINE__);

    this->nrow_ = cast_mat->nrow_;
    this->ncol_ = cast_mat->ncol_;
    this->nnz_ = nnz;

  return true;

  }

  return false;

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::Apply(const BaseVector<ValueType> &in, BaseVector<ValueType> *out) const {

  if (this->nnz_ > 0) {

    assert(in.  get_size() >= 0);
    assert(out->get_size() >= 0);
    assert(in.  get_size() == this->ncol_);
    assert(out->get_size() == this->nrow_);

//    const HostVector<ValueType> *cast_in = dynamic_cast<const HostVector<ValueType>*> (&in);
//    HostVector<ValueType> *cast_out      = dynamic_cast<      HostVector<ValueType>*> (out);

//    assert(cast_in != NULL);
//    assert(cast_out!= NULL);

    _set_omp_backend_threads(this->local_backend_, this->nrow_);

    // TODO
    FATAL_ERROR(__FILE__, __LINE__);

  }

}

template <typename ValueType>
void HostMatrixBCSR<ValueType>::ApplyAdd(const BaseVector<ValueType> &in, const ValueType scalar,
                                         BaseVector<ValueType> *out) const {

  if (this->nnz_ > 0) {

    assert(in.  get_size() >= 0);
    assert(out->get_size() >= 0);
    assert(in.  get_size() == this->ncol_);
    assert(out->get_size() == this->nrow_);

//    const HostVector<ValueType> *cast_in = dynamic_cast<const HostVector<ValueType>*> (&in) ; 
//    HostVector<ValueType> *cast_out      = dynamic_cast<      HostVector<ValueType>*> (out) ; 

//    assert(cast_in != NULL);
//    assert(cast_out!= NULL);

    _set_omp_backend_threads(this->local_backend_, this->nrow_);

    // TODO
    FATAL_ERROR(__FILE__, __LINE__);

  }

}


template class HostMatrixBCSR<double>;
template class HostMatrixBCSR<float>;
#ifdef SUPPORT_COMPLEX
template class HostMatrixBCSR<std::complex<double> >;
template class HostMatrixBCSR<std::complex<float> >;
#endif

}