#! /usr/bin/env python3

##@namespace produtil.mpi_impl.no_mpi
# Stub funcitons to allow produtil.mpi_impl  to run when MPI is unavailable.
#
# This module is part of the produtil.mpi_impl package.  It underlies
# the produtil.run.openmp, produtil.run.mpirun , and
# produtil.run.mpiserial functions, providing the implementation
# needed to run when MPI is unavailable.

import os, logging
import produtil.prog,produtil.pipeline
from .mpi_impl_base import MPIDisabled,ImplementationBase
module_logger=logging.getLogger('lsf_cray_intel')

class Implementation(ImplementationBase):
    @staticmethod
    def name():
        """Returns the string "no_mpi" to indicate MPI is not available."""
        return 'no_mpi'
    @staticmethod
    def detect(logger=None,force=False,**kwargs):
        """!Returns a new instrance of this class to indicate that
        the "no MPI" implementation of MPI is always available"""
        return Implementation()
    def __init__(self,logger=None):
        super(Implementation,self).__init__(logger=logger)