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// Copyright © 2023 Apple Inc.
#include <cstring>
#include <iostream>
#include <sstream>
#include "mlx/mlx.h"
#include "time_utils.h"
namespace mx = mlx::core;
void time_irregular_binary_ops_1D() {
auto device = mx::default_device();
int size = 1000000;
int step = 2;
auto a = mx::random::uniform({size});
auto b = mx::random::uniform({size});
mx::eval(a, b);
a = slice(a, {0}, {size}, {step});
b = slice(b, {0}, {size}, {step});
TIMEM("1D strided", mx::add, a, b, device);
}
void time_irregular_binary_ops_2D() {
auto device = mx::default_device();
int size = 2048;
auto a = mx::random::uniform({size, size});
auto b = mx::random::uniform({size, size});
mx::eval(a, b);
TIMEM("2D regular", mx::add, a, b, device);
b = mx::transpose(b);
mx::eval(b);
TIMEM("2D mx::transpose", mx::add, a, b, device);
b = mx::random::uniform({size});
mx::eval(b);
TIMEM("2D broadcast dim 0", mx::add, a, b, device);
b = mx::reshape(b, {size, 1});
mx::eval(b);
TIMEM("2D broadcast dim 1", mx::add, a, b, device);
}
void time_irregular_binary_ops_3D() {
auto device = mx::default_device();
int d0 = 32;
int d1 = 512;
int d2 = 512;
auto a = mx::random::uniform({d0, d1, d2});
auto b = mx::random::uniform({d0, d1, d2});
TIMEM("3D regular", mx::add, a, b, device);
b = mx::transpose(b, {0, 2, 1});
TIMEM("3D mx::transpose", mx::add, a, b, device);
b = mx::random::uniform({d1, d2});
TIMEM("3D broadcast dim 0", mx::add, a, b, device);
b = mx::random::uniform({d0, 1, d2});
TIMEM("3D broadcast dim 1", mx::add, a, b, device);
b = mx::random::uniform({d0, d1, 1});
TIMEM("3D broadcast dim 2", mx::add, a, b, device);
b = mx::random::uniform({d2});
TIMEM("3D broadcast dims 0, 1", mx::add, a, b, device);
b = mx::random::uniform({d1, 1});
TIMEM("3D broadcast dims 0, 2", mx::add, a, b, device);
b = mx::random::uniform({d0, 1, 1});
TIMEM("3D broadcast dims 1, 2", mx::add, a, b, device);
}
void time_irregular_binary_ops_4D() {
auto device = mx::default_device();
std::vector<int> shape = {8, 8, 512, 512};
auto a = mx::random::uniform(shape);
auto b = mx::random::uniform(shape);
TIMEM("4D regular", mx::add, a, b, device);
b = mx::transpose(b, {0, 1, 3, 2});
TIMEM("4D mx::transpose", mx::add, a, b, device);
std::string om = "4D broadcast dims ";
for (int i = 0; i < shape.size(); ++i) {
shape[i] = 1;
b = mx::random::uniform(shape);
std::ostringstream msg;
msg << om << i;
TIMEM(msg.str(), mx::add, a, b, device);
for (int j = i + 1; j < shape.size(); ++j) {
shape[j] = 1;
std::ostringstream msg;
msg << om << i << ", " << j;
b = mx::random::uniform(shape);
TIMEM(msg.str(), mx::add, a, b, device);
shape[j] = a.shape(j);
for (int k = j + 1; k < shape.size(); ++k) {
shape[k] = 1;
std::ostringstream msg;
msg << om << i << ", " << j << ", " << k;
b = mx::random::uniform(shape);
TIMEM(msg.str(), mx::add, a, b, device);
shape[k] = a.shape(k);
}
}
shape[i] = a.shape(i);
}
}
void time_irregular_reshape() {
auto device = mx::default_device();
std::vector<int> shape;
auto reshape_fn = [&shape, device](const mx::array& a) {
return mx::reshape(a, shape, device);
};
int size = 64;
int d = 2 * size;
auto a = mx::random::uniform({d, d, d});
shape = {8 * size, size, size};
TIMEM("3D contiguous", reshape_fn, a);
a = mx::transpose(a);
shape = {8 * size, size, size};
TIMEM("3D mx::transpose", reshape_fn, a);
a = mx::transpose(a, {1, 2, 0});
shape = {8 * size, size, size};
TIMEM("3D mx::transpose dims 1 2", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d, d}), {d, d, d});
TIMEM("3D broadcast dim 0", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d, 1, d}), {d, d, d});
TIMEM("3D broadcast dim 1", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d, d, 1}), {d, d, d});
TIMEM("3D broadcast dim 2", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d}), {d, d, d});
TIMEM("3D broadcast dims 0, 1", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d, 1}), {d, d, d});
TIMEM("3D broadcast dims 0, 2", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({d, 1, 1}), {d, d, d});
TIMEM("3D broadcast dims 1, 2", reshape_fn, a);
a = mx::broadcast_to(mx::random::uniform({1, 1, 1}), {d, d, d});
TIMEM("3D broadcast dims 1, 2, 3", reshape_fn, a);
}
void time_irregular_astype_1D() {
auto device = mx::default_device();
int size = 1000000;
int step = 2;
auto a = mx::random::uniform({size});
a = slice(a, {0}, {size}, {step});
TIMEM("1D strided", mx::astype, a, mx::int32, device);
}
void time_irregular_astype_2D() {
auto device = mx::default_device();
int size = 2048;
std::vector<int> shape = {size, size};
auto a = mx::random::uniform(shape);
TIMEM("2D regular", mx::astype, a, mx::int32, device);
a = mx::transpose(a);
TIMEM("2D mx::transpose", mx::astype, a, mx::int32, device);
a = mx::broadcast_to(mx::random::uniform({size}), shape);
TIMEM("2D broadcast dim 0", mx::astype, a, mx::int32, device);
a = mx::broadcast_to(mx::random::uniform({size, 1}), shape);
TIMEM("2D broadcast dim 1", mx::astype, a, mx::int32, device);
}
int main(int argc, char** argv) {
if (argc > 1) {
bool use_gpu = !strcmp(argv[1], "gpu");
set_default_device(use_gpu ? mx::Device::gpu : mx::Device::cpu);
}
std::cout << "Benchmarks for " << mx::default_device() << std::endl;
time_irregular_binary_ops_1D();
time_irregular_binary_ops_2D();
time_irregular_binary_ops_3D();
time_irregular_binary_ops_4D();
time_irregular_reshape();
time_irregular_astype_1D();
time_irregular_astype_2D();
}
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