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Improvements to samples

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This commit is contained in:
jpekkila
2020-04-07 17:58:47 +03:00
parent 427a3ac5d8
commit fb41741d74
5 changed files with 79 additions and 23 deletions
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86
samples/benchmark/main.cc
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@@ -89,33 +89,45 @@ main(void)
}
}*/
/*
// Basic
const size_t num_iters = 100;
// Warmup
for (size_t i = 0; i < 10; ++i)
for (size_t i = 0; i < num_iters / 10; ++i)
acGridIntegrate(STREAM_DEFAULT, FLT_EPSILON);
// Benchmark
Timer t;
const AcReal dt = FLT_EPSILON;
const AcReal dt = FLT_EPSILON;
acGridSynchronizeStream(STREAM_ALL);
timer_reset(&t);
acGridSynchronizeStream(STREAM_ALL);
acGridSynchronizeStream(STREAM_ALL);
timer_reset(&t);
acGridSynchronizeStream(STREAM_ALL);
const size_t num_iters = 50;
for (size_t i = 0; i < num_iters; ++i)
acGridIntegrate(STREAM_DEFAULT, dt);
for (size_t i = 0; i < num_iters; ++i)
acGridIntegrate(STREAM_DEFAULT, dt);
acGridSynchronizeStream(STREAM_ALL);
if (!pid)
timer_diff_print(t);
acGridSynchronizeStream(STREAM_ALL);
/*
acGridSynchronizeStream(STREAM_ALL);
if (!pid)
timer_diff_print(t);
acGridSynchronizeStream(STREAM_ALL);
*/
// Percentiles
const size_t num_iters = 100;
const double nth_percentile = 0.90;
std::vector<double> results; // ms
results.reserve(num_iters);
// Warmup
for (size_t i = 0; i < num_iters / 10; ++i)
acGridIntegrate(STREAM_DEFAULT, FLT_EPSILON);
// Benchmark
Timer t;
const AcReal dt = FLT_EPSILON;
for (size_t i = 0; i < num_iters; ++i) {
acGridSynchronizeStream(STREAM_ALL);
timer_reset(&t);
@@ -123,9 +135,9 @@ main(void)
acGridIntegrate(STREAM_DEFAULT, dt);
acGridSynchronizeStream(STREAM_ALL);
results.push_back(timer_diff_nsec(t) / 1e6);
acGridSynchronizeStream(STREAM_ALL);
}
// Write benchmark to file
if (!pid) {
std::sort(results.begin(), results.end(),
[](const double& a, const double& b) { return a < b; });
@@ -149,7 +161,49 @@ main(void)
fprintf(fp, "%d, %g\n", nprocs, results[nth_percentile * num_iters]);
fclose(fp);
}*/
}
/*
const size_t num_iters = 100;
const double nth_percentile = 0.90;
std::vector<double> results; // ms
results.reserve(num_iters);
for (size_t i = 0; i < num_iters; ++i) {
acGridSynchronizeStream(STREAM_ALL);
timer_reset(&t);
acGridSynchronizeStream(STREAM_ALL);
acGridIntegrate(STREAM_DEFAULT, dt);
acGridSynchronizeStream(STREAM_ALL);
results.push_back(timer_diff_nsec(t) / 1e6);
}
// Write benchmark to file
if (!pid) {
std::sort(results.begin(), results.end(),
[](const double& a, const double& b) { return a < b; });
fprintf(stdout,
"Integration step time %g ms (%gth "
"percentile)--------------------------------------\n",
results[nth_percentile * num_iters], 100 * nth_percentile);
char path[4096] = "";
if (test == TEST_STRONG_SCALING)
strncpy(path, "strong_scaling.csv", sizeof(path));
else if (test == TEST_WEAK_SCALING)
strncpy(path, "weak_scaling.csv", sizeof(path));
else
ERROR("Invalid test type");
FILE* fp = fopen(path, "a");
ERRCHK_ALWAYS(fp);
// Format
// nprocs, measured (ms)
fprintf(fp, "%d, %g\n", nprocs, results[nth_percentile * num_iters]);
fclose(fp);
}*/
acGridQuit();
MPI_Finalize();