void main()
{
char *arr="1992";
int res;
res=ownatoi(arr);
printf("%d\n",res);
}
void likwid_markerInit(void)
{
int i;
int verbosity;
bstring bThreadStr;
bstring bEventStr;
struct bstrList* threadTokens;
struct bstrList* eventStrings;
char* modeStr = getenv("LIKWID_MODE");
char* eventStr = getenv("LIKWID_EVENTS");
char* cThreadStr = getenv("LIKWID_THREADS");
char* filepath = getenv("LIKWID_FILEPATH");
/* Dirty hack to avoid nonnull warnings */
int (*ownatoi)(const char*);
ownatoi = &atoi;
if ((modeStr != NULL) && (filepath != NULL) && (eventStr != NULL) && (cThreadStr != NULL))
{
likwid_init = 1;
}
else if (likwid_init == 0)
{
fprintf(stderr, "Cannot initalize LIKWID marker API, environment variables are not set\n");
fprintf(stderr, "You have to set the -m commandline switch for likwid-perfctr\n");
return;
}
else
{
return;
}
if (!lock_check())
{
fprintf(stderr,"Access to performance counters is locked.\n");
exit(EXIT_FAILURE);
}
topology_init();
numa_init();
affinity_init();
hashTable_init();
for(int i=0; i<MAX_NUM_NODES; i++) socket_lock[i] = LOCK_INIT;
HPMmode(atoi(modeStr));
if (getenv("LIKWID_DEBUG") != NULL)
{
perfmon_verbosity = atoi(getenv("LIKWID_DEBUG"));
verbosity = perfmon_verbosity;
}
bThreadStr = bfromcstr(cThreadStr);
threadTokens = bstrListCreate();
threadTokens = bsplit(bThreadStr,',');
num_cpus = threadTokens->qty;
for (i=0; i<num_cpus; i++)
{
threads2Cpu[i] = ownatoi(bdata(threadTokens->entry[i]));
}
bdestroy(bThreadStr);
bstrListDestroy(threadTokens);
if (getenv("LIKWID_PIN") != NULL)
{
likwid_pinThread(threads2Cpu[0]);
if (getenv("OMP_NUM_THREADS") != NULL)
{
if (ownatoi(getenv("OMP_NUM_THREADS")) > num_cpus)
{
use_locks = 1;
}
}
if (getenv("CILK_NWORKERS") != NULL)
{
if (ownatoi(getenv("CILK_NWORKERS")) > num_cpus)
{
use_locks = 1;
}
}
}
i = perfmon_init(num_cpus, threads2Cpu);
if (i<0)
{
fprintf(stderr,"Failed to initialize LIKWID perfmon library.\n");
return;
}
bEventStr = bfromcstr(eventStr);
eventStrings = bstrListCreate();
eventStrings = bsplit(bEventStr,'|');
numberOfGroups = eventStrings->qty;
groups = malloc(numberOfGroups * sizeof(int));
if (!groups)
{
fprintf(stderr,"Cannot allocate space for group handling.\n");
bstrListDestroy(eventStrings);
exit(EXIT_FAILURE);
}
for (i=0; i<eventStrings->qty; i++)
{
groups[i] = perfmon_addEventSet(bdata(eventStrings->entry[i]));
}
bstrListDestroy(eventStrings);
bdestroy(bEventStr);
for (i=0; i<num_cpus; i++)
{
hashTable_initThread(threads2Cpu[i]);
for(int j=0; j<groupSet->groups[groups[0]].numberOfEvents;j++)
{
groupSet->groups[groups[0]].events[j].threadCounter[i].init = TRUE;
}
}
groupSet->activeGroup = 0;
}
void
likwid_markerInit(void)
{
int i;
int verbosity;
int setinit = 0;
bstring bThreadStr;
bstring bEventStr;
struct bstrList* threadTokens;
struct bstrList* eventStrings;
char* modeStr = getenv("LIKWID_MODE");
char* eventStr = getenv("LIKWID_EVENTS");
char* cThreadStr = getenv("LIKWID_THREADS");
char* filepath = getenv("LIKWID_FILEPATH");
char* perfpid = getenv("LIKWID_PERF_EXECPID");
char execpid[20];
/* Dirty hack to avoid nonnull warnings */
int (*ownatoi)(const char*);
ownatoi = &atoi;
if ((modeStr != NULL) && (filepath != NULL) && (eventStr != NULL) && (cThreadStr != NULL) && likwid_init == 0)
{
setinit = 1;
}
else if (likwid_init == 0)
{
fprintf(stderr, "Running without Marker API. Activate Marker API with -m on commandline.\n");
return;
}
else
{
return;
}
if (!lock_check())
{
fprintf(stderr,"Access to performance counters is locked.\n");
exit(EXIT_FAILURE);
}
topology_init();
numa_init();
affinity_init();
hashTable_init();
//#ifndef LIKWID_USE_PERFEVENT
HPMmode(atoi(modeStr));
//#endif
if (getenv("LIKWID_DEBUG") != NULL)
{
perfmon_verbosity = atoi(getenv("LIKWID_DEBUG"));
verbosity = perfmon_verbosity;
}
bThreadStr = bfromcstr(cThreadStr);
threadTokens = bsplit(bThreadStr,',');
num_cpus = threadTokens->qty;
for (i=0; i<num_cpus; i++)
{
threads2Cpu[i] = ownatoi(bdata(threadTokens->entry[i]));
}
bdestroy(bThreadStr);
bstrListDestroy(threadTokens);
if (getenv("LIKWID_PIN") != NULL)
{
likwid_pinThread(threads2Cpu[0]);
if (getenv("OMP_NUM_THREADS") != NULL)
{
if (ownatoi(getenv("OMP_NUM_THREADS")) > num_cpus)
{
use_locks = 1;
}
}
if (getenv("CILK_NWORKERS") != NULL)
{
if (ownatoi(getenv("CILK_NWORKERS")) > num_cpus)
{
use_locks = 1;
}
}
}
#ifdef LIKWID_USE_PERFEVENT
if (perfpid != NULL)
{
snprintf(execpid, 19, "%d", getpid());
setenv("LIKWID_PERF_PID", execpid, 1);
char* perfflags = getenv("LIKWID_PERF_FLAGS");
if (perfflags)
{
setenv("LIKWID_PERF_FLAGS", getenv("LIKWID_PERF_FLAGS"), 1);
}
}
#endif
i = perfmon_init(num_cpus, threads2Cpu);
if (i<0)
{
//fprintf(stderr,"Failed to initialize LIKWID perfmon library.\n");
return;
}
bEventStr = bfromcstr(eventStr);
eventStrings = bsplit(bEventStr,'|');
numberOfGroups = eventStrings->qty;
groups = malloc(numberOfGroups * sizeof(int));
if (!groups)
{
fprintf(stderr,"Cannot allocate space for group handling.\n");
bstrListDestroy(eventStrings);
exit(EXIT_FAILURE);
}
for (i=0; i<eventStrings->qty; i++)
{
groups[i] = perfmon_addEventSet(bdata(eventStrings->entry[i]));
}
bstrListDestroy(eventStrings);
bdestroy(bEventStr);
for (i=0; i<num_cpus; i++)
{
hashTable_initThread(threads2Cpu[i]);
for(int j=0; j<groupSet->groups[groups[0]].numberOfEvents;j++)
{
groupSet->groups[groups[0]].events[j].threadCounter[i].init = TRUE;
groupSet->groups[groups[0]].state = STATE_START;
}
}
if (setinit)
{
likwid_init = 1;
}
threads2Pthread[registered_cpus] = pthread_self();
registered_cpus++;
groupSet->activeGroup = 0;
perfmon_setupCounters(groupSet->activeGroup);
perfmon_startCounters();
}
