return name;
}
-static bool parmap_skip_mode(e_xbt_parmap_mode_t mode)
-{
- return mode == XBT_PARMAP_FUTEX && not HAVE_FUTEX_H;
-}
-
static unsigned fibonacci(unsigned n)
{
if (n < 2)
*arg = fibonacci(*arg % FIBO_MAX);
}
-static void bench_parmap_full(int nthreads, e_xbt_parmap_mode_t mode)
-{
- XBT_INFO("** mode = %s", parmap_mode_name(mode).c_str());
-
- if (parmap_skip_mode(mode)) {
- XBT_INFO(" not available");
- return;
- }
-
- std::vector<unsigned> a(ARRAY_SIZE);
- std::vector<unsigned*> data(ARRAY_SIZE);
- std::iota(begin(a), end(a), 0);
- std::iota(begin(data), end(data), &a[0]);
-
- int i = 0;
- double start_time = xbt_os_time();
- double elapsed_time;
- do {
- {
- simgrid::xbt::Parmap<unsigned*> parmap(nthreads, mode);
- parmap.apply(fun_to_apply, data);
- } // enclosing block to ensure that the parmap is destroyed here.
- elapsed_time = xbt_os_time() - start_time;
- i++;
- } while (elapsed_time < TIMEOUT);
-
- XBT_INFO(" ran %d times in %g seconds (%g/s)", i, elapsed_time, i / elapsed_time);
-}
-
-static void bench_parmap_apply(int nthreads, e_xbt_parmap_mode_t mode)
+static void bench_parmap(int nthreads, e_xbt_parmap_mode_t mode, bool full_bench)
{
XBT_INFO("** mode = %s", parmap_mode_name(mode).c_str());
- if (parmap_skip_mode(mode)) {
+ if (mode == XBT_PARMAP_FUTEX && not HAVE_FUTEX_H) {
XBT_INFO(" not available");
return;
}
std::iota(begin(a), end(a), 0);
std::iota(begin(data), end(data), &a[0]);
- simgrid::xbt::Parmap<unsigned*> parmap(nthreads, mode);
+ auto* parmap = new simgrid::xbt::Parmap<unsigned*>(nthreads, mode);
int i = 0;
double start_time = xbt_os_time();
double elapsed_time;
do {
- parmap.apply(fun_to_apply, data);
+ if (full_bench) {
+ delete parmap;
+ parmap = new simgrid::xbt::Parmap<unsigned*>(nthreads, mode);
+ }
+ parmap->apply(fun_to_apply, data);
elapsed_time = xbt_os_time() - start_time;
i++;
} while (elapsed_time < TIMEOUT);
+ delete parmap;
XBT_INFO(" ran %d times in %g seconds (%g/s)", i, elapsed_time, i / elapsed_time);
}
-static void bench_all_modes(void (*bench_fun)(int, e_xbt_parmap_mode_t), int nthreads, unsigned modes)
+static void bench_all_modes(int nthreads, unsigned modes, bool full_bench)
{
std::vector<e_xbt_parmap_mode_t> all_modes = {XBT_PARMAP_POSIX, XBT_PARMAP_FUTEX, XBT_PARMAP_BUSY_WAIT,
XBT_PARMAP_DEFAULT};
for (unsigned i = 0; i < all_modes.size(); i++) {
if (1U << i & modes)
- bench_fun(nthreads, all_modes[i]);
+ bench_parmap(nthreads, all_modes[i], full_bench);
}
}
fun_to_apply = &fun_small_comp;
XBT_INFO("Benchmark for parmap create+apply+destroy (small comp):");
- bench_all_modes(bench_parmap_full, nthreads, modes);
+ bench_all_modes(nthreads, modes, true);
XBT_INFO("%s", "");
XBT_INFO("Benchmark for parmap apply only (small comp):");
- bench_all_modes(bench_parmap_apply, nthreads, modes);
+ bench_all_modes(nthreads, modes, false);
XBT_INFO("%s", "");
fun_to_apply = &fun_big_comp;
XBT_INFO("Benchmark for parmap create+apply+destroy (big comp):");
- bench_all_modes(bench_parmap_full, nthreads, modes);
+ bench_all_modes(nthreads, modes, true);
XBT_INFO("%s", "");
XBT_INFO("Benchmark for parmap apply only (big comp):");
- bench_all_modes(bench_parmap_apply, nthreads, modes);
+ bench_all_modes(nthreads, modes, false);
XBT_INFO("%s", "");
return EXIT_SUCCESS;