[This is preliminary documentation and is subject to change.]
Determine whether a message from the given source and with the specified tag is available, but don't try to receive the message. This routine will return immediately, regardless of whether a message is available, so it is useful for polling to determine whether any messages need to be handled at this time. If your program can't do any work until a message arrives (and the message is guaranteed to arrive, eventually), use Probe(Int32, Int32) instead.Namespace: MPI
Assembly: MPI (in MPI.dll)
Version: 0.9.0.0 (0.9.0.0)
|Visual Basic (Declaration)|
- Type: System..::.Int32
The process that sent (or that will send) the message. This must be a value in [0, Size-1), or the special value anySource. If it is anySource, then we can match a message sent by any other process in this communicator.