mpid_attr_find.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`\_}Attr{\tt \char`\_}find}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Attr{\tt \char`\_}find}
--- Find and optionally insert an attribute for a given keyval 
\subhead{Synopsis}
\startvb\begin{verbatim}
MPID_Attribute *MPID_Attr_find( MPID_List *list, int keyval, int insert )

\end{verbatim}
\endvb

\subhead{Input Parameters}
\startarg{list }{Attribute list to search
}
\startarg{keyval }{keyval to look for
}
\startarg{insert }{True if attribute should be inserted if it is not found.
}
\par
\subhead{Return Value}
A pointer to the matching attribute entry, or null if no attribute matching
the keyval was found.
\par
\subhead{Notes}
This routine should only be used in a context where no other thread
may modify the attribute list of the underlying object.  It may be
necessary to use {\tt MPID{\tt \char`\_}Thread{\tt \char`\_}lock} and {\tt MPID{\tt \char`\_}Thread{\tt \char`\_}unlock
}with the per-process {\tt common{\tt \char`\_}lock} around uses of this routine.
\par
Using a value of 0 for {\tt insert} makes it easy to implement {\tt MPI{\tt \char`\_}Attr{\tt \char`\_}get};
a value of 1 is used for {\tt MPI{\tt \char`\_}Attr{\tt \char`\_}put} (and the MPI-2 versions of
these).
\par
\subhead{Module}
Attribute
\endmanpage