mpi.comm.inter: MPI\_Comm\_get\_parent, MPI\_Comm\_remote\_size,...

In snoweye/Rmpi_PROF: Interface (Wrapper) to MPI (Message-Passing Interface)

Description

mpi.comm.get.parent is mainly used by slaves to find the intercommunicator or the parent who spawns them. The intercommunicator is saved in the specified comm number.

mpi.comm.remote.size is mainly used by master to find the total number of slaves spawned.

mpi.comm.test.inter tests if a comm is an intercomm or not.

Usage

  mpi.comm.get.parent(comm = 2)
  mpi.comm.remote.size(comm = 2)
  mpi.comm.test.inter(comm = 2)

Arguments

comm	an intercommunicator number.

Value

mpi.comm.get.parent and mpi.comm.test.inter return 1 if success and 0 otherwise.

mpi.comm.remote.size returns the total number of members in the remote group in an intercomm.

Author(s)

Hao Yu

References

http://www.lam-mpi.org/, http://www-unix.mcs.anl.gov/mpi/www/www3/

See Also

mpi.intercomm.merge

snoweye/Rmpi_PROF documentation built on May 30, 2019, 6:04 a.m.