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