mpid_op.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`\_}Op}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Op}
--- MPI{\tt \char`\_}Op structure 
\subhead{Synopsis}
\startvb\begin{verbatim}
typedef struct {
     MPID_Op_kind       kind;
     MPID_Lang_t        language;
     MPID_User_function function;
  } MPID_Op;

\end{verbatim}
\endvb

\subhead{Notes}
All of the predefined functions are commutative.  Only user functions may
be noncummutative, so there are two separate op types for commutative and
non-commutative user-defined operations.
\par
Operations do not require reference counts because there are no nonblocking
operations that accept user-defined operations.  Thus, there is no way that
a valid program can free an {\tt MPI{\tt \char`\_}Op} while it is in use.
\par
\subhead{Module}
Collective-DS
\endmanpage