77 lines
3.0 KiB
C++
77 lines
3.0 KiB
C++
#include <cstring>
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#include <cstdio>
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#include "triton/runtime/jit.h"
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#include "triton/driver/backend.h"
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#include "triton/driver/stream.h"
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#include "triton/dnn/gemm.h"
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#include "triton/tools/bench.hpp"
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int main() {
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bool AT = true;
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bool BT = true;
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// initialize default compute device
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auto context = triton::driver::backend::contexts::get_default();
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triton::jit jit(context);
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// matrix multiplication parameters
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int32_t M = 1024, N = 1024, K = 1024;
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std::vector<float> hc(M*N);
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std::vector<float> rc(M*N);
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std::vector<float> ha(M*K);
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std::vector<float> hb(K*N);
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std::vector<int32_t> hlocks(2048);
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srand(0);
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for(size_t i = 0; i < ha.size(); i++)
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ha[i] = (float)rand()/RAND_MAX;
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for(size_t i = 0; i < hb.size(); i++)
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hb[i] = (float)rand()/RAND_MAX;
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for(size_t i = 0; i < hc.size(); i++)
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hc[i] = 0;
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triton::driver::buffer* dc = triton::driver::buffer::create(context, hc.size()*4);
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triton::driver::buffer* da = triton::driver::buffer::create(context, ha.size()*4);
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triton::driver::buffer* db = triton::driver::buffer::create(context, hb.size()*4);
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triton::driver::buffer* dlocks = triton::driver::buffer::create(context, hlocks.size()*4);
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triton::driver::stream* stream = triton::driver::stream::create(context);
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stream->write(da, true, 0, ha);
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stream->write(db, true, 0, hb);
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stream->write(dc, true, 0, hc);
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triton::dnn::gemm::init(stream, dlocks);
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stream->synchronize();
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// benchmark a given matrix multiplication kernel
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auto benchmark = [&](triton::driver::kernel* kernel,
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triton::jit::launch_information info) {
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unsigned TM = info.global_range_size[0];
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unsigned TN = info.global_range_size[1];
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unsigned nthreads = info.num_threads;
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unsigned GZ = jit.get_int("GZ");
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std::array<size_t, 3> grid = {(M + TM - 1)/TM, (N + TN - 1)/TN, GZ};
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triton::dnn::gemm::set_arg(kernel, da, db, dc, M, N, K, dlocks, grid[0], grid[1]);
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stream->enqueue(kernel, grid, {nthreads, 1, 1});
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stream->synchronize();
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double ts = triton::tools::bench([&](){stream->enqueue(kernel, grid, {nthreads, 1, 1});},
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[&](){ stream->synchronize(); }, context->device());
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return 2.*M*N*K / ts * 1e-3;
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};
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// just-in-time compile source-code
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std::string src = triton::dnn::gemm::src(AT, BT, "fp32", "fp32", 4, 4);
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// jit.autotune("matmul",src.c_str(), benchmark);
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jit.add_module("matmul", src.c_str(), {8, 16, 4, 2, 16, 8, 4, 2, 2, 4, 2, 8, 8, 1});
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triton::driver::kernel* kernel = jit.get_function("matmul");
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triton::jit::launch_information info = jit.get_launch_info("matmul");
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std::cout << "Performance: " << benchmark(kernel, info) << " TFLOPS " << std::endl;
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stream->read(dc, true, 0, hc);
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triton::dnn::gemm::cpu_ref<float>(AT, BT, rc, ha, hb, M, N, K);
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for(size_t i = 0; i < M*N; i++)
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if(!std::isnan(hc[i]) && std::abs(hc[i] - rc[i])/std::max(hc[i], rc[i]) > 1e-4){
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std::cout << i << " " << hc[i] << " " << rc[i] << std::endl;
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exit(EXIT_FAILURE);
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}
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std::cout << "Pass!" << std::endl;
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}
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