mpi.get.count: MPI\_Get\_count API
In snoweye/Rmpi_PROF: Interface (Wrapper) to MPI (Message-Passing Interface)

Description Usage Arguments Details Value Author(s) References See Also

mpi.get.count finds the length of a received message.

1	mpi.get.count(type, status = 0)

`type`	1 for integer, 2 for double, 3 for char.
`status`	a status number

When mpi.recv is used to receive a message, the receiver buffer can be set to be bigger than the incoming message. To find the exact length of the received message, mpi.get.count is used to find its exact length. mpi.get.count must be called immediately after calling mpi.recv otherwise the status may be changed.

the length of a received message.

Hao Yu

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

mpi.send, mpi.recv, mpi.get.sourcetag, mpi.probe.

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