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<TITLE>HPL_ptimer_cputime HPL 2.0 Library Functions September 10, 2008</TITLE> |
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<H1>Name</H1> |
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<B>HPL_ptimer_cputime</B> Return the CPU time. |
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<H1>Synopsis</H1> |
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<CODE>#include "hpl.h"</CODE><BR><BR> |
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<CODE>double</CODE> |
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<CODE>HPL_ptimer_cputime();</CODE> |
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<H1>Description</H1> |
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<B>HPL_ptimer_cputime</B> |
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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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<H1>See Also</H1> |
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<A HREF="HPL_ptimer_walltime.html">HPL_ptimer_walltime</A>, |
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<A HREF="HPL_ptimer.html">HPL_ptimer</A>. |
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