1 #include "tmrc.h" 2 #include <stdio.h> 3 #include <sys/types.h> 4 #include <time.h> 5 6 #include <sys/time.h> 7 #include <sys/resource.h> 8 #include <unistd.h> 9 10 #ifdef __bgq__ 11 #include "hwi/include/bqc/A2_inlines.h" 12 #endif 13 TMRC(void)14double TMRC (void) 15 { 16 17 #ifdef __bgq__ 18 19 /* use the GetTimeBase function available on BGQ */ 20 uint64_t TB = GetTimeBase(); 21 double t1 = 6.25e-10*TB; /* = 1/1.6e9 */ 22 23 #else 24 25 /* use the gettimeofday function available on any Linux platform */ 26 27 int rc; 28 struct timeval tv; 29 double t1 = 0; 30 31 rc = gettimeofday (&tv, NULL); 32 if (rc == -1) { 33 fprintf(stderr,"tmrc: gettimeofday\n"); 34 return 0.; 35 } 36 t1 = ((double) tv.tv_sec) + 1.e-6 * ((double) tv.tv_usec); 37 38 #endif 39 40 return t1; 41 } 42