A collection of minimal yet performant utilities that are useful for various forms of research at the intersection of machine learning and systems.
The measure.hpp header provides utilities for measuring the mean, median and minimum runtime of arbitrary functions.
Also useful is the ability to limit the execution time of the benchmark.
#include "sysml/measure.hpp"
unsigned iterations = 1000;
double limit_in_seconds = 0.01;
auto time = measure_fastest_time_limited([]() {
// do something
}, iterations, limit_in_seconds);
std::cout << "fastest run " << time << " seconds";Threading utilities can be found in the sysml/thread/ folder,
with fast primitives for parallel_for and barriers.
An X86_64/ARM64 codegenerator based on xbyak/xbyak_aarch64 can be found in sysml/code_generator/code_generator.hpp.
There are functions to simplify the use of generated functions, such as automatic shared_ptr wrapping and improved executable memory mapping.
Create ndarray_refs from underlying data.
std::vector<int> v{0, 1, 2, 3, 4, 5, 6, 7, 8};
std::array<std::size_t, 2> shape{3, 3};
sysml::const_ndarray_ref<int, 2> nda(v.data(), shape);Determine the availability of numeric types on the system.
#include "sysml/numeric.hpp"
using namespace sysml;
CHECK(is_arithmetic_v<char32_t>);
CHECK(is_arithmetic_v<uint16x4_t>);Fast stack-allocated arrays with the vek.hpp header:
#include "sysml/ndloop.hpp"
#include "sysml/vek.hpp"
using namespace sysml;
vek<int, 3> range{2, 3, 4};
// Equivalent to three nested loops:
ndloop(range, [&](auto const& v) { me[v[0]][v[1]][v[2]] = 0xdeadbeef; });
for (int i = 0; i < 2; ++i)
for (int j = 0; j < 3; ++j)
for (int k = 0; k < 4; ++k)
CHECK(me[i][j][k] == 0xdeadbeef);
// Alternatively:
ndloop(range, [&](auto a, auto b, auto c) { me[a][b][c] = 0x12341234; });
for (int i = 0; i < 2; ++i)
for (int j = 0; j < 3; ++j)
for (int k = 0; k < 4; ++k)
CHECK(me[i][j][k] == 0x12341234);
Easily iterate over multiple dimensions with sysml/ndloop.hpp.
To contribute, please see the CONTRIBUTING.md file.
libsysml is MIT licensed, as found in the LICENSE file.
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