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#include "Halide.h"
#include <iostream>
#include "halide_benchmark.h"
using namespace Halide;
using namespace Halide::Tools;
int global_to_prevent_opt;
int null_call() {
return global_to_prevent_opt;
}
int main(int argc, char **argv) {
Target target = get_jit_target_from_environment();
if (target.arch == Target::WebAssembly) {
printf("[SKIP] Performance tests are meaningless and/or misleading under WebAssembly interpreter.\n");
return 0;
}
{
global_to_prevent_opt = argc;
double t = benchmark([&]() { null_call(); });
std::cout << "No argument native call time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
f.compile_jit();
double t = benchmark([&]() { f.realize(); });
std::cout << "No argument Func realize time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
Pipeline p(f);
p.compile_jit();
double t = benchmark([&]() { p.realize(); });
std::cout << "No argument Pipeline realize time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
Pipeline p(f);
p.compile_jit();
auto buf = Buffer<int32_t>::make_scalar();
Realization r(buf);
Target target;
ParamMap pm;
double t = benchmark([&]() { p.realize(r, target, pm); });
std::cout << "No argument Pipeline realize reusing Realization/Target/ParamMap time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
Pipeline p(f);
p.compile_jit();
auto buf = Buffer<int32_t>::make_scalar();
Target target;
ParamMap pm;
double t = benchmark([&]() { p.realize(buf, target, pm); });
std::cout << "No argument Pipeline realize reusing Buffer/Target/ParamMap time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
Pipeline p(f);
p.compile_jit();
// This is probably the most common case
auto buf = Buffer<int32_t>::make_scalar();
double t = benchmark([&]() { p.realize(buf); });
std::cout << "No argument Pipeline realize reusing Buffer only time " << t * 1e6 << "us.\n";
}
{
Func f;
f() = 42;
Pipeline p(f);
p.compile_jit();
auto buf = Buffer<int32_t>::make_scalar();
Realization r(buf);
Target target("host-no_asserts-no_bounds_query");
ParamMap pm;
double t = benchmark([&]() { p.realize(r, target, pm); });
std::cout << "No argument Pipeline realize reusing Realization/Target/ParamMap with no_asserts and no_bounds_query time " << t * 1e6 << "us.\n";
}
{
Func f;
Param<int> in;
f() = in + 42;
f.compile_jit();
in.set(0);
auto buf = Buffer<int32_t>::make_scalar();
double t = benchmark([&]() { f.realize(buf); });
std::cout << "One argument Func realize to Buffer time " << t * 1e6 << "us.\n";
}
{
Func f;
Param<int> in;
f() = in + 42;
in.set(0);
Pipeline p(f);
p.compile_jit();
auto buf = Buffer<int32_t>::make_scalar();
Realization r(buf);
Target target;
ParamMap pm;
double t = benchmark([&]() { p.realize(r, target, pm); });
std::cout << "One argument Pipeline realize reusing Realization/Target/ParamMap time " << t * 1e6 << "us.\n";
}
for (int i = 10; i < 100; i += 10) {
Func f;
std::vector<Param<int>> params(i);
Expr e = 0;
for (auto &p : params) {
p.set(1);
e += p;
}
f() = e;
f.compile_jit();
auto buf = Buffer<int32_t>::make_scalar();
double t = benchmark([&]() { f.realize(buf); });
std::cout << std::to_string(i) << "-argument Func realize to Buffer time " << t * 1e6 << "us.\n";
}
std::cout << "Success!\n";
return 0;
}
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