mpid_wtick.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`\_}Wtick}{tex}{10/7/2002}
\manname{MPID{\tt \char`\_}Wtick}
--- Provide the resolution of the {\tt MPID{\tt \char`\_}Wtime} timer 
\subhead{Synopsis}
\startvb\begin{verbatim}
double MPID_Wtick( void )

\end{verbatim}
\endvb

\subhead{Return value}
Resolution of the timer in seconds.  In many cases, this is the
time between ticks of the clock that {\tt MPID{\tt \char`\_}Wtime} returns.  In other
words, the minimum significant difference that can be computed by
{\tt MPID{\tt \char`\_}Wtime{\tt \char`\_}diff}.
\par
Note that in some cases, the resolution may be estimated.  No application
should expect either the same estimate in different runs or the same
value on different processes.
\par
\subhead{Module}
Timer
\endmanpage