chenchenghao/DeepGEMM
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Make various updates and fixes:

Browse Source 
- Add support for legacy CUDA versions; now compatible with CUDA 12.3 and newer
- Add support for NVRTC compilation
- Other fixes and code refactoring
This commit is contained in:
Ray Wang
2025-08-02 19:52:22 -07:00
parent aff9da0aba
commit d9c363f86f
36 changed files with 592 additions and 362 deletions
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csrc/jit/compiler.hpp
+128 -21
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@@ -1,14 +1,17 @@
#pragma once
#include <ATen/cuda/CUDAContext.h>
#include <cuda_runtime.h>
#include <filesystem>
#include <fstream>
#include <nvrtc.h>
#include <regex>
#include <string>
#include "../utils/exception.hpp"
#include "../utils/format.hpp"
#include "../utils/hash.hpp"
#include "../utils/lazy_init.hpp"
#include "../utils/system.hpp"
#include "cache.hpp"
#include "device_runtime.hpp"
@@ -16,10 +19,13 @@
namespace deep_gemm {
class Compiler {
std::string library_version;
std::filesystem::path library_root_path;
public:
static std::filesystem::path library_root_path;
static std::filesystem::path library_include_path;
static std::filesystem::path cuda_home;
static std::string library_version;
std::string get_library_version() const {
static std::string get_library_version() {
std::stringstream ss;
for (const auto& f: collect_files(library_include_path / "deep_gemm")) {
std::ifstream in(f, std::ios::binary);
@@ -28,16 +34,23 @@ class Compiler {
return get_hex_digest(ss.str());
}
public:
static void prepare_init(const std::string& library_root_path,
const std::string& cuda_home_path_by_torch) {
Compiler::library_root_path = library_root_path;
Compiler::library_include_path = Compiler::library_root_path / "include";
Compiler::cuda_home = cuda_home_path_by_torch;
Compiler::library_version = get_library_version();
}
std::string signature, flags;
std::filesystem::path library_include_path;
std::filesystem::path cache_dir_path;
explicit Compiler(const std::filesystem::path& library_root_path) {
// Static library paths
this->library_root_path = library_root_path;
this->library_include_path = library_root_path / "include";
this->library_version = get_library_version();
Compiler() {
// Check `prepare_init`
DG_HOST_ASSERT(not library_root_path.empty());
DG_HOST_ASSERT(not library_include_path.empty());
DG_HOST_ASSERT(not cuda_home.empty());
DG_HOST_ASSERT(not library_version.empty());
// Cache settings
cache_dir_path = std::filesystem::path(get_env<std::string>("HOME")) / ".deep_gemm";
@@ -46,10 +59,11 @@ public:
// The compiler flags applied to all derived compilers
signature = "unknown-compiler";
std::string ptxas_flags = "--ptxas-options=--register-usage-level=10";
if (get_env<int>("DG_JIT_PTXAS_VERBOSE", 0))
ptxas_flags += ",--verbose";
flags = fmt::format("-std=c++20 --diag-suppress=39,161,174,177,186,940 {}", ptxas_flags);
flags = fmt::format("-std=c++{} --diag-suppress=39,161,174,177,186,940 "
"--ptxas-options=--register-usage-level=10",
get_env<int>("DG_JIT_CPP_STANDARD", 20));
if (get_env("DG_JIT_DEBUG", 0) or get_env("DG_JIT_PTXAS_VERBOSE", 0))
flags += " --ptxas-options=--verbose";
}
virtual ~Compiler() = default;
@@ -102,6 +116,11 @@ public:
virtual void compile(const std::string &code, const std::filesystem::path& dir_path, const std::filesystem::path &cubin_path) const = 0;
};
DG_DECLARE_STATIC_VAR_IN_CLASS(Compiler, library_root_path);
DG_DECLARE_STATIC_VAR_IN_CLASS(Compiler, library_include_path);
DG_DECLARE_STATIC_VAR_IN_CLASS(Compiler, cuda_home);
DG_DECLARE_STATIC_VAR_IN_CLASS(Compiler, library_version);
class NVCCCompiler final: public Compiler {
std::filesystem::path nvcc_path;
@@ -125,11 +144,9 @@ class NVCCCompiler final: public Compiler {
}
public:
NVCCCompiler(const std::filesystem::path& library_root_path,
const std::filesystem::path& cuda_home_path_by_torch):
Compiler(library_root_path) {
NVCCCompiler() {
// Override the compiler signature
nvcc_path = cuda_home_path_by_torch / "bin" / "nvcc";
nvcc_path = cuda_home / "bin" / "nvcc";
if (const auto& env_nvcc_path = get_env<std::string>("DG_JIT_NVCC_COMPILER"); not env_nvcc_path.empty())
nvcc_path = env_nvcc_path;
const auto& [nvcc_major, nvcc_minor] = get_nvcc_version();
@@ -150,10 +167,10 @@ public:
// Compile
const auto& command = fmt::format("{} {} -o {} {}", nvcc_path.c_str(), code_path.c_str(), cubin_path.c_str(), flags);
if (get_env("DG_JIT_DEBUG", 0) or get_env("DG_JIT_PRINT_COMPILER_COMMAND", 0))
printf("Running NVCC command: %s", command.c_str());
printf("Running NVCC command: %s\n", command.c_str());
const auto& [return_code, output] = call_external_command(command);
if (return_code != 0) {
printf("NVCC compilation failed: %s", output.c_str());
printf("NVCC compilation failed: %s\n", output.c_str());
DG_HOST_ASSERT(false and "NVCC compilation failed");
}
@@ -163,6 +180,96 @@ public:
}
};
static std::shared_ptr<Compiler> compiler = nullptr;
class NVRTCCompiler final: public Compiler {
public:
NVRTCCompiler() {
// Override the compiler signature
int major, minor;
DG_NVRTC_CHECK(nvrtcVersion(&major, &minor));
signature = fmt::format("NVRTC{}.{}", major, minor);
// Build include directories list
std::string include_dirs;
include_dirs += fmt::format("-I{} ", library_include_path.string());
include_dirs += fmt::format("-I{} ", (cuda_home / "include").string());
// Add PCH support for version 12.8 and above
// NOTES: PCH is vital for compilation speed
std::string pch_flags;
if (major > 12 or (major == 12 and minor >= 8)) {
pch_flags = "--pch ";
if (get_env<int>("DG_JIT_DEBUG", 0))
pch_flags += "--pch-verbose=true ";
}
// Override the compiler flags
flags = fmt::format("{} {}--gpu-architecture=sm_{}a -default-device {}",
flags, include_dirs, device_runtime->get_arch(), pch_flags);
}
void compile(const std::string &code, const std::filesystem::path& dir_path, const std::filesystem::path &cubin_path) const override {
// Write the code into the cache directory
const auto& code_path = dir_path / "kernel.cu";
put(code_path, code);
// Parse compilation options
std::istringstream iss(flags);
std::vector<std::string> options;
std::string option;
while (iss >> option)
options.push_back(option);
// Convert to C-style string array for NVRTC
std::vector<const char*> option_cstrs;
for (const auto& opt: options)
option_cstrs.push_back(opt.c_str());
// Print compiler command if requested
if (get_env<int>("DG_JIT_DEBUG", 0) or get_env<int>("DG_JIT_PRINT_COMPILER_COMMAND", 0)) {
printf("Compiling JIT runtime with NVRTC options: ");
for (const auto& opt: options)
printf("%s ", opt.c_str());
printf("\n");
}
// Create NVRTC program and compile
nvrtcProgram program;
DG_NVRTC_CHECK(nvrtcCreateProgram(&program, code.c_str(), "kernel.cu", 0, nullptr, nullptr));
const auto& compile_result = nvrtcCompileProgram(program, static_cast<int>(option_cstrs.size()), option_cstrs.data());
// Get and print compiler log
size_t log_size;
DG_NVRTC_CHECK(nvrtcGetProgramLogSize(program, &log_size));
if (get_env<int>("DG_JIT_DEBUG", 0) or compile_result != NVRTC_SUCCESS) {
if (compile_result != NVRTC_SUCCESS)
DG_HOST_ASSERT(log_size > 1);
if (log_size > 1) {
std::string compilation_log(log_size, '\0');
DG_NVRTC_CHECK(nvrtcGetProgramLog(program, compilation_log.data()));
printf("NVRTC log: %s\n", compilation_log.c_str());
}
}
// Get CUBIN size and data
size_t cubin_size;
DG_NVRTC_CHECK(nvrtcGetCUBINSize(program, &cubin_size));
std::string cubin_data(cubin_size, '\0');
DG_NVRTC_CHECK(nvrtcGetCUBIN(program, cubin_data.data()));
// Write into the file system
put(cubin_path, cubin_data);
// Cleanup
DG_NVRTC_CHECK(nvrtcDestroyProgram(&program));
}
};
static auto compiler = LazyInit<Compiler>([]() -> std::shared_ptr<Compiler> {
if (get_env<int>("DG_JIT_USE_NVRTC", 0)) {
return std::make_shared<NVRTCCompiler>();
} else {
return std::make_shared<NVCCCompiler>();
}
});
} // namespace deep_gemm