mpid_pack_size.tex

来自「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」· TEX 代码 · 共 37 行

\startmanpage
\mantitle{MPID{\tt \char`\_}Pack{\tt \char`\_}size}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Pack{\tt \char`\_}size}
--- Return a bound on the size of packed data 
\subhead{Synopsis}
\startvb\begin{verbatim}
int MPID_Pack_size( int count, MPID_Datatype *type, MPID_Comm *comm, int rank )

\end{verbatim}
\endvb

\subhead{Input Parameters}
\startarg{count }{Number of items to pack
}
\startarg{type  }{Datatype of items to pack
}
\startarg{comm  }{Communicator to pack for
}
\startarg{rank  }{rank of destination to pack for (may be {\tt MPI{\tt \char`\_}ANY{\tt \char`\_}SOURCE})
}
\par
\subhead{Return value}
An upper bound on the number of items of type {\tt MPI{\tt \char`\_}PACKED} that this
much data will take when packed.
\par
The size returned may include the size required to include a header
in the buffer created by {\tt MPI{\tt \char`\_}Pack}.
\par
\subhead{Notes}
This is very similar to the {\tt MPI{\tt \char`\_}Pack{\tt \char`\_}size} routine except for the {\tt rank
}argument.  A {\tt rank} of {\tt MPI{\tt \char`\_}ANY{\tt \char`\_}SOURCE} should give the same value
as {\tt MPI{\tt \char`\_}Pack{\tt \char`\_}size}.
\par
\subhead{Module}
Datatype
\endmanpage