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BG/Q compatibility fix

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This commit is contained in:
Antonin Portelli
2016-02-23 15:57:38 +00:00
parent 19526d09c2
commit 497e7e4c53
8 changed files with 314 additions and 2504 deletions
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22
lib/PerfCount.h
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@ -43,8 +43,8 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
#else
#include <sys/syscall.h>
#endif
namespace Grid {
namespace Grid {
#ifdef __linux__
static long perf_event_open(struct perf_event_attr *hw_event, pid_t pid,
@ -58,6 +58,22 @@ static long perf_event_open(struct perf_event_attr *hw_event, pid_t pid,
}
#endif
#ifdef __bgq__
inline uint64_t cyclecount(void){
uint64_t tmp;
asm volatile ("mfspr %0,0x10C" : "=&r" (tmp) );
return tmp;
}
#elif defined __i386__
inline uint64_t cyclecount(void){
return __rdtsc();
}
#else
#warning No cycle counter implemented for this architecture
inline uint64_t cyclecount(void){
return 0;
}
#endif
class PerformanceCounter {
private:
@ -149,7 +165,7 @@ public:
ioctl(fd, PERF_EVENT_IOC_RESET, 0);
ioctl(fd, PERF_EVENT_IOC_ENABLE, 0);
}
begin =__rdtsc();
begin =cyclecount();
#else
begin = 0;
#endif
@ -162,7 +178,7 @@ public:
ioctl(fd, PERF_EVENT_IOC_DISABLE, 0);
::read(fd, &count, sizeof(long long));
}
elapsed = __rdtsc() - begin;
elapsed = cyclecount() - begin;
#else
elapsed = 0;
#endif