root / man / man3 / HPL_timer_cputime.3 @ 1
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| 1 | 1 | equemene | .TH HPL_timer_cputime 3 "September 10, 2008" "HPL 2.0" "HPL Library Functions" |
|---|---|---|---|
| 2 | 1 | equemene | .SH NAME |
| 3 | 1 | equemene | HPL_timer_cputime \- Return the CPU time. |
| 4 | 1 | equemene | .SH SYNOPSIS |
| 5 | 1 | equemene | \fB\&#include "hpl.h"\fR |
| 6 | 1 | equemene | |
| 7 | 1 | equemene | \fB\&double\fR |
| 8 | 1 | equemene | \fB\&HPL_timer_cputime();\fR |
| 9 | 1 | equemene | .SH DESCRIPTION |
| 10 | 1 | equemene | \fB\&HPL_timer_cputime\fR |
| 11 | 1 | equemene | returns the cpu time. If HPL_USE_CLOCK is defined, |
| 12 | 1 | equemene | the clock() function is used to return an approximation of processor |
| 13 | 1 | equemene | time used by the program. The value returned is the CPU time used so |
| 14 | 1 | equemene | far as a clock_t; to get the number of seconds used, the result is |
| 15 | 1 | equemene | divided by CLOCKS_PER_SEC. This function is part of the ANSI/ISO C |
| 16 | 1 | equemene | standard library. If HPL_USE_TIMES is defined, the times() function |
| 17 | 1 | equemene | is used instead. This function returns the current process times. |
| 18 | 1 | equemene | times() returns the number of clock ticks that have elapsed since the |
| 19 | 1 | equemene | system has been up. Otherwise and by default, the standard library |
| 20 | 1 | equemene | function getrusage() is used. |
| 21 | 1 | equemene | .SH SEE ALSO |
| 22 | 1 | equemene | .BR HPL_timer_walltime \ (3), |
| 23 | 1 | equemene | .BR HPL_timer \ (3). |