75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
#pragma once
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#include <filesystem>
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#include <memory>
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#include <unordered_map>
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#include "kernel_runtime.hpp"
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#include "../utils/system.hpp"
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namespace deep_gemm {
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class KernelRuntimeCache {
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std::unordered_map<std::string, std::shared_ptr<KernelRuntime>> cache;
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public:
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// TODO: consider cache capacity
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KernelRuntimeCache() = default;
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std::shared_ptr<KernelRuntime> get(const std::filesystem::path& dir_path) {
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// Hit the runtime cache
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if (const auto& iterator = cache.find(dir_path); iterator != cache.end())
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return iterator->second;
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if (KernelRuntime::check_validity(dir_path))
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return cache[dir_path] = std::make_shared<KernelRuntime>(dir_path);
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return nullptr;
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}
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// Preload all cached kernels from disk into memory
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void preload_all(const std::filesystem::path& cache_dir) {
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const auto kernel_cache_dir = cache_dir / "cache";
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// If cache directory doesn't exist, return early
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if (!std::filesystem::exists(kernel_cache_dir))
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return;
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int loaded_count = 0;
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int total_count = 0;
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// Iterate through all kernel subdirectories in the cache
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for (const auto& entry : std::filesystem::directory_iterator(kernel_cache_dir)) {
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if (!entry.is_directory())
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continue;
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total_count++;
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const auto& dir_path = entry.path();
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// Skip if already in memory cache
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if (cache.find(dir_path) != cache.end())
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continue;
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// Check validity and load the kernel
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if (KernelRuntime::check_validity(dir_path)) {
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try {
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cache[dir_path] = std::make_shared<KernelRuntime>(dir_path);
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loaded_count++;
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} catch (const std::exception& e) {
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// Skip failed loads
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if (get_env<int>("DG_JIT_DEBUG"))
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printf("Warning: Failed to preload kernel from %s: %s\n",
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dir_path.c_str(), e.what());
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}
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}
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}
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if (get_env<int>("DG_JIT_DEBUG") || loaded_count > 0)
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printf("DeepGEMM: Preloaded %d/%d cached kernels from %s\n",
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loaded_count, total_count, kernel_cache_dir.c_str());
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}
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};
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static auto kernel_runtime_cache = std::make_shared<KernelRuntimeCache>();
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} // namespace deep_gemm
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