CommOperatorsMPI.h File Reference

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Functions
template<typename T >
void	gsum (T &, int)
	dummy declarations to be specialized More...
template<>
void	gsum (int &g, int gid)
template<unsigned N>
void	gsum (qmcplusplus::TinyVector< double, N > &g, int gid)
template<>
void	gsum (std::vector< int > &g, int gid)
template<>
void	gsum (double &g, int gid)
template<unsigned N>
void	gsum (qmcplusplus::TinyVector< int, N > &g, int gid)
template<>
void	gsum (std::vector< double > &g, int gid)
template<>
void	gsum (qmcplusplus::Matrix< double > &g, int gid)
template<>
void	gsum (std::vector< std::complex< double >> &g, int gid)

Function Documentation

gsum() [1/9]

void gsum ( T &  , int    )

inline

dummy declarations to be specialized

Definition at line 23 of file CommOperatorsMPI.h.

{
  throw std::runtime_error("Need specialization for gsum(T&, int)");
}

gsum() [2/9]

void gsum ( int &  g, int  gid  )

inline

Definition at line 147 of file CommOperatorsMPI.h.

{
  int gt = g;
  MPI_Allreduce(&(gt), &(g), 1, MPI_INT, MPI_SUM, MPI_COMM_WORLD);
}

gsum() [3/9]

void gsum ( qmcplusplus::TinyVector< double, N > &  g, int  gid  )

inline

Definition at line 154 of file CommOperatorsMPI.h.

References TinyVector< T, D >::begin(), and qmcplusplus::Units::force::N.

{
  //TinyVector<double,N> gt = g;
  //MPI_Allreduce(gt.begin(), g.begin(), N, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  qmcplusplus::TinyVector<double, N> gt(g);
  MPI_Allreduce(g.begin(), gt.begin(), N, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  g = gt;
}

gsum() [4/9]

void gsum ( std::vector< int > &  g, int  gid  )

inline

Definition at line 164 of file CommOperatorsMPI.h.

{
  std::vector<int> gt(g.size(), 0);
  MPI_Allreduce(&(g[0]), &(gt[0]), g.size(), MPI_INT, MPI_SUM, MPI_COMM_WORLD);
  g = gt;
}

gsum() [5/9]

void gsum ( double &  g, int  gid  )

inline

Definition at line 172 of file CommOperatorsMPI.h.

{
  double gt = g;
  MPI_Allreduce(&(gt), &(g), 1, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
}

gsum() [6/9]

void gsum ( qmcplusplus::TinyVector< int, N > &  g, int  gid  )

inline

Definition at line 179 of file CommOperatorsMPI.h.

References TinyVector< T, D >::begin(), and qmcplusplus::Units::force::N.

{
  //TinyVector<double,N> gt = g;
  //MPI_Allreduce(gt.begin(), g.begin(), N, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  qmcplusplus::TinyVector<int, N> gt(g);
  MPI_Allreduce(g.begin(), gt.begin(), N, MPI_INT, MPI_SUM, MPI_COMM_WORLD);
  g = gt;
}

gsum() [7/9]

void gsum ( std::vector< double > &  g, int  gid  )

inline

Definition at line 189 of file CommOperatorsMPI.h.

{
  std::vector<double> gt(g.size(), 0.0);
  MPI_Allreduce(&(g[0]), &(gt[0]), g.size(), MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  g = gt;
}

gsum() [8/9]

void gsum ( qmcplusplus::Matrix< double > &  g, int  gid  )

inline

Definition at line 197 of file CommOperatorsMPI.h.

References Matrix< T, Alloc >::begin(), copy(), Matrix< T, Alloc >::data(), Matrix< T, Alloc >::end(), and Matrix< T, Alloc >::size().

{
  //TinyVector<double,N> gt = g;
  //MPI_Allreduce(gt.begin(), g.begin(), N, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  std::vector<double> gt(g.size());
  copy(g.begin(), g.end(), gt.begin());
  MPI_Allreduce(g.data(), &gt[0], g.size(), MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  copy(gt.begin(), gt.end(), g.data());
}

gsum() [9/9]

void gsum ( std::vector< std::complex< double >> &  g, int  gid  )

inline

Definition at line 902 of file CommOperatorsMPI.h.

{
  std::vector<std::complex<double>> gt(g.size(), 0.0);
  MPI_Allreduce(&(g[0]), &(gt[0]), 2 * g.size(), MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
  g = gt;
}