mpid_segment_init_unpack.tex

刚才是说明 现在是安装程序在 LINUX环境下进行编程的MPICH安装文件

\startmanpage
\mantitle{MPID{\tt \char`\_}Segment{\tt \char`\_}init{\tt \char`\_}unpack}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Segment{\tt \char`\_}init{\tt \char`\_}unpack}
--- Get a segment ready for receiving and unpacking  data  
\subhead{Synopsis}
\startvb\begin{verbatim}
void * MPID_Segment_init_unpack( const void *buf, int maxcount, 
                              MPID_Datatype *dtype,
                                 MPID_Comm *comm, int rank, 
                                 MPID_Segment *segment )

\end{verbatim}
\endvb

\subhead{Input Parameters}
\startarg{buf   }{Buffer to setup for receiving
}
\startarg{maxcount }{Number of items
}
\startarg{dtype }{Datatype of items
}
\startarg{comm  }{Communicator for communication
}
\startarg{rank  }{Rank of source.  Use {\tt MPI{\tt \char`\_}ANY{\tt \char`\_}SOURCE} for any member of the 
communicator
}
\par
\subhead{Output Parameter}
\startarg{segment }{Segment descriptor.  
}
\par
\subhead{Module}
Segment
\par
\subhead{Questions}
Should there be a flag indicating that the buffer may be used in a
put operation (as part of a receive and forward operation)?
\par
Do we need both an init pack and init unpack?
\endmanpage