char* logger::
format_header(const logger::msg& a_msg, char* a_buf, const char* a_end)
{
// Message mormat: Timestamp|Level|Ident|Category|Message|File:Line FunName
// Write everything up to Message to the m_data:
char* p = a_buf;
// Write Timestamp
if (timestamp_type() != stamp_type::NO_TIMESTAMP) {
p += timestamp::format(timestamp_type(), a_msg.m_timestamp, p, a_end - p);
*p++ = '|';
}
// Write Level
*p++ = logger::log_level_to_str(a_msg.m_level)[0];
*p++ = '|';
if (show_ident()) {
p = stpncpy(p, ident().c_str(), ident().size());
*p++ = '|';
}
if (show_thread()) {
if (a_msg.m_thread_name[0] == '\0') {
char* q = const_cast<char*>(a_msg.m_thread_name);
itoa(a_msg.m_thread_id, q, 10);
}
p = stpcpy(p, a_msg.m_thread_name);
*p++ = '|';
}
if (show_category()) {
if (!a_msg.m_category.empty())
p = stpncpy(p, a_msg.m_category.c_str(), a_msg.m_category.size());
*p++ = '|';
}
return p;
}
int main(){
int i, k;
int nworkers, totalworkers;
char cpuCount[20];
double *a, *b, *c, *d;
double sums[2000];
cpu_set_t cpuset;
TimeData timer;
double triad_time, copy_time, total = 0;
nprocessors = sysconf(_SC_NPROCESSORS_CONF);
nworkers = cilk_spawn get_nworkers();
totalworkers = cilk_spawn get_totalworkers();
for (i=0;i<nworkers;i++)
{
sums[i] = 0;
}
LIKWID_MARKER_INIT;
cilk_spawn allocate_vector(&a, SIZE);
cilk_spawn allocate_vector(&b, SIZE);
cilk_spawn allocate_vector(&c, SIZE);
cilk_spawn allocate_vector(&d, SIZE);
cilk_sync;
for (i=0; i<SIZE; i++) {
a[i] = 1.0;
b[i] = 2.0;
c[i] = 0.0;
d[i] = 1.0;
}
time_start(&timer);
for (k=0; k<ITER; k++)
{
for (i=0;i<nworkers;i++)
{
cilk_spawn LIKWID_MARKER_START("copy");
}
cilk_sync;
cilk_for(i=0;i<SIZE;i++)
{
c[i] = a[i];
}
for (i=0;i<nworkers;i++)
{
cilk_spawn LIKWID_MARKER_STOP("copy");
}
cilk_sync;
}
time_stop(&timer);
copy_time = time_print(&timer)/(double)ITER;
time_start(&timer);
for (k=0; k<ITER; k++)
{
for (i=0;i<nworkers;i++)
{
cilk_spawn LIKWID_MARKER_START("triad");
}
cilk_sync;
cilk_for(i=0;i<SIZE;i++)
{
a[i] = b[i] + c[i] * d[i];
}
for (i=0;i<nworkers;i++)
{
cilk_spawn LIKWID_MARKER_STOP("triad");
}
cilk_sync;
}
time_stop(&timer);
triad_time = time_print(&timer)/(double)ITER;
printf("Processed %.1f Mbyte at copy benchmark in %.4f seconds: %.2f MByte/s\n",
1E-6*(2*SIZE*sizeof(double)),
copy_time,
1E-6*((2*SIZE*sizeof(double))/copy_time));
printf("Processed %.1f Mbyte at triad benchmark in %.4f seconds: %.2f MByte/s\n",
1E-6*(4*SIZE*sizeof(double)),
triad_time,
1E-6*((4*SIZE*sizeof(double))/triad_time));
printf("Main PID %d\n",getpid());
for (i=0;i<nworkers;i++)
{
cilk_spawn show_thread();
}
cilk_sync;
LIKWID_MARKER_CLOSE;
}
