Bcast_timestep()

template<typename T >

void cntr::herm_matrix_timestep< T >::Bcast_timestep	(	int	tstp,
		int	root
	)

Broadcasts the herm_matrix_timestep at a given time step to all ranks.

Purpose

Broadcasts the herm_matrix_timestep at a given time step tstp to all ranks. Works for a square matrices.

Parameters

tstp	Time step which should be broadcasted.
root	The rank from which the herm_matrix_timestep should be broadcasted.

Note

The green's function is resized before broadcast with respect to number of points on the Matsubara branch ntau and the matrix size size1 at a given timestep tstp.

Definition at line 2567 of file cntr_herm_matrix_timestep_impl.hpp.

                                                               {
   int numtasks,taskid;
   MPI_Comm_size(MPI_COMM_WORLD, &numtasks);
   MPI_Comm_rank(MPI_COMM_WORLD, &taskid);
   if (taskid != root)
      resize(tstp, ntau_, size1_);
   int len = (2 * (tstp_ + 1) + ntau_ + 1) * element_size_;
// test effective on root:
   assert(tstp == tstp_);
   if (sizeof(T) == sizeof(double))
      MPI_Bcast(data_, len, MPI_DOUBLE_COMPLEX, root, MPI_COMM_WORLD);
   else
      MPI_Bcast(data_, len, MPI_COMPLEX, root, MPI_COMM_WORLD);
}