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/*
* Purpose
* =======
* Returns the time in seconds used by the process.
*
* Note: the timer function call is machine dependent. Use conditional
* compilation to choose the appropriate function.
*
*/
#ifdef SUN
/*
* It uses the system call gethrtime(3C), which is accurate to
* nanoseconds.
*/
#include <sys/time.h>
double SuperLU_timer_() {
return ( (double)gethrtime() / 1e9 );
}
#else
#ifndef NO_TIMER
#include <sys/types.h>
#include <sys/times.h>
#include <time.h>
#include <sys/time.h>
#endif
#ifndef CLK_TCK
#define CLK_TCK 60
#endif
double SuperLU_timer_()
{
#ifdef NO_TIMER
/* no sys/times.h on WIN32 */
double tmp;
tmp = 0.0;
#else
struct tms use;
double tmp;
times(&use);
tmp = use.tms_utime;
tmp += use.tms_stime;
#endif
return (double)(tmp) / CLK_TCK;
}
#endif
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