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74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
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/* This is part of the netCDF package. Copyright 2005-2018 University
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Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
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conditions of use.
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*/
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#ifndef BM_TIMER_H
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#define BM_TIMER_H 1
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#undef NOREPEAT
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#undef NOCONTIG
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/*
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* The following timing macros can be used by including the necessary
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* declarations with
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*
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* TIMING_DECLS(seconds)
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*
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* and surrounding sections of code to be timed with the "statements"
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*
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* TIMING_START
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* [code to be timed goes here]
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* TIMING_END(seconds)
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*
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* The macros assume the user has stored a description of what is
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* being timed in a 100-char string time_mess, and has included
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* <sys/times.h> and <sys/resource.h>. The timing message printed by
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* TIMING_END is not terminated by a new-line, to permit appending
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* additional text to that line, so user must at least printf("\n")
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* after that.
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*/
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#define TIMING_DECLS(seconds) \
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long TMreps; /* counts repetitions of timed code */ \
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long TMrepeats; /* repetitions needed to exceed 0.1 second */ \
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Nanotime bnano,enano,delta; /* start/stop times in nanoseconds */ \
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double seconds; \
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NCT_inittimer();
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#ifndef NOREPEAT
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#define TIMING_START \
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TMrepeats = 1; \
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do { \
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NCT_marktime(&bnano); \
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for(TMreps=0; TMreps < TMrepeats; TMreps++) {
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#define TIMING_END(seconds) \
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} \
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NCT_marktime(&enano); \
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NCT_elapsedtime(&bnano,&enano,&delta); \
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TMrepeats *= 2; \
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} while (NCT_nanoseconds(delta) < 100000000 ); \
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seconds = ((double)NCT_nanoseconds(delta)) / (1000000000.0 * TMreps); \
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#else /*NOREPEAT*/
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#define TIMING_START \
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do { \
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fprintf(stderr,"TIME_START\n"); \
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NCT_marktime(&bnano); \
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{
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#define TIMING_END(time_mess,seconds) \
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} \
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NCT_marktime(&enano); \
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NCT_elapsedtime(&bnano,&enano,&delta); \
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} while (0); \
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fprintf(stderr,"TIME_END\n"); \
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seconds = ((double)NCT_nanoseconds(delta)) / (1000000000.0 * TMreps); \
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printf("%-45.45s %#08.6F sec", time_mess, seconds);
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#endif /*NOREPEAT*/
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#endif /*BM_TIMER_H*/
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