root / www / HPL_ptimer_cputime.html
Historique | Voir | Annoter | Télécharger (1,17 ko)
| 1 | 1 | equemene | <HTML>
|
|---|---|---|---|
| 2 | 1 | equemene | <HEAD>
|
| 3 | 1 | equemene | <TITLE>HPL_ptimer_cputime HPL 2.0 Library Functions September 10, 2008</TITLE> |
| 4 | 1 | equemene | </HEAD>
|
| 5 | 1 | equemene | |
| 6 | 1 | equemene | <BODY BGCOLOR="WHITE" TEXT = "#000000" LINK = "#0000ff" VLINK = "#000099" |
| 7 | 1 | equemene | ALINK = "#ffff00"> |
| 8 | 1 | equemene | |
| 9 | 1 | equemene | <H1>Name</H1> |
| 10 | 1 | equemene | <B>HPL_ptimer_cputime</B> Return the CPU time. |
| 11 | 1 | equemene | |
| 12 | 1 | equemene | <H1>Synopsis</H1> |
| 13 | 1 | equemene | <CODE>#include "hpl.h"</CODE><BR><BR> |
| 14 | 1 | equemene | <CODE>double</CODE> |
| 15 | 1 | equemene | <CODE>HPL_ptimer_cputime();</CODE> |
| 16 | 1 | equemene | |
| 17 | 1 | equemene | <H1>Description</H1> |
| 18 | 1 | equemene | <B>HPL_ptimer_cputime</B> |
| 19 | 1 | equemene | returns the cpu time. If HPL_USE_CLOCK is defined, |
| 20 | 1 | equemene | the clock() function is used to return an approximation of processor |
| 21 | 1 | equemene | time used by the program. The value returned is the CPU time used so |
| 22 | 1 | equemene | far as a clock_t; to get the number of seconds used, the result is |
| 23 | 1 | equemene | divided by CLOCKS_PER_SEC. This function is part of the ANSI/ISO C |
| 24 | 1 | equemene | standard library. If HPL_USE_TIMES is defined, the times() function |
| 25 | 1 | equemene | is used instead. This function returns the current process times. |
| 26 | 1 | equemene | times() returns the number of clock ticks that have elapsed since the |
| 27 | 1 | equemene | system has been up. Otherwise and by default, the standard library |
| 28 | 1 | equemene | function getrusage() is used. |
| 29 | 1 | equemene | |
| 30 | 1 | equemene | <H1>See Also</H1> |
| 31 | 1 | equemene | <A HREF="HPL_ptimer_walltime.html">HPL_ptimer_walltime</A>, |
| 32 | 1 | equemene | <A HREF="HPL_ptimer.html">HPL_ptimer</A>. |
| 33 | 1 | equemene | |
| 34 | 1 | equemene | </BODY>
|
| 35 | 1 | equemene | </HTML> |