tkwant.mpi.communicator_init¶

tkwant.mpi.communicator_init(comm=None)[source]¶

Initialize a global MPI communicator for tkwant.

Parameters: comm (mpi4py.MPI.Intracomm, optional) – MPI communicator that tkwant will use. By default, this routine initializes the communicator to MPI.COMM_WORLD. Note that this routine will always initialize the global communicator with a dublicate.