mpid_attr_list_walk.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`\_}list{\tt \char`\_}walk}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Attr{\tt \char`\_}list{\tt \char`\_}walk}
--- Walk through a list of attributes 
\subhead{Synopsis}
\startvb\begin{verbatim}
MPID_Attribute *MPID_Attr_list_walk( MPID_List *list, MPID_Attribute *prev )

\end{verbatim}
\endvb

\subhead{Input Parameters}
\startarg{list }{Attribute list to walk through
}
\startarg{prev }{Previous attribute returned by this routine, or null.
}
\par
\subhead{Notes}
This routine returns each element of an attribute list in turn.
The first call should use {\tt NULL} for the value of {\tt prev}.
\par
Just as for {\tt MPID{\tt \char`\_}Attr{\tt \char`\_}find}, this routine should be called in a
thread-safe fashion, most likely using {\tt MPID{\tt \char`\_}xxx{\tt \char`\_}thread{\tt \char`\_}lock} and
{\tt MPID{\tt \char`\_}xxx{\tt \char`\_}thread{\tt \char`\_}unlock} (where {\tt xxx} denotes {\tt Comm}, {\tt Datatype}, or {\tt Win}).
\par
This function is needed for the object duplicate functions (e.g.,
{\tt MPI{\tt \char`\_}Comm{\tt \char`\_}dup} and {\tt MPI{\tt \char`\_}Type{\tt \char`\_}dup}), as well as for the object free functions
(e.g., {\tt MPI{\tt \char`\_}Comm{\tt \char`\_}free}, {\tt MPI{\tt \char`\_}Type{\tt \char`\_}free}, and {\tt MPI{\tt \char`\_}Win{\tt \char`\_}free}).
\par
\subhead{Module}
Attribute
\endmanpage