change directory of akg cuda kernel

mindspore/_akg/op_build.py

@@ -24,13 +24,13 @@ import _akg
 from _akg import save_gpu_param as gpu_utils
 from _akg.utils import validation_check as vc_util
 
-MS_CUDA_KERNEL_PATH = "/tmp/cuda_meta/"
 
 @vc_util.check_input_type(list, (list, tuple), (list, tuple), (types.FunctionType, type(None)), str, str, dict)
 def op_build(opnames, computes, args, custom_schedule, device, kernel_name, attrs):
     """op_build"""
+    kernel_meta_path = "./cuda_meta_" + str(os.getpid()) + "/"
     if device == "cuda":
-        cuda_path = os.path.realpath(MS_CUDA_KERNEL_PATH)
+        cuda_path = os.path.realpath(kernel_meta_path)
         if not os.path.isdir(cuda_path):
             os.makedirs(cuda_path)
         if not opnames:
@@ -43,7 +43,7 @@ def op_build(opnames, computes, args, custom_schedule, device, kernel_name, attr
             logging.error("no schedule func found %s", str(schedule_name))
             return None
 
-        ptx_file = os.path.realpath(MS_CUDA_KERNEL_PATH + kernel_name + ".ptx")
+        ptx_file = os.path.realpath(kernel_meta_path + kernel_name + ".ptx")
         if os.path.exists(ptx_file):
             os.chmod(ptx_file, 0o600)
         try:
@@ -55,7 +55,8 @@ def op_build(opnames, computes, args, custom_schedule, device, kernel_name, attr
                     foo = _akg.tvm.build(s, args, device, name=kernel_name)
                     ptx_code = foo.imported_modules[0].get_source("ptx")
                     file.write(ptx_code)
-                    json_file = os.path.realpath(MS_CUDA_KERNEL_PATH + kernel_name + ".json")
+                    json_file = os.path.realpath(
+                        kernel_meta_path + kernel_name + ".json")
                     kernel_info = (ptx_code, json_file, kernel_name)
                     gpu_utils.save_gpu_params(s, args, kernel_info)
             os.chmod(ptx_file, 0o400)

mindspore/ccsrc/device/gpu/gpu_kernel_build.cc

@@ -28,11 +28,7 @@ namespace gpu {
 namespace py = pybind11;
 void GpuBuild(const KernelGraphPtr &kernel_graph) {
   kernel::KernelMeta *bin_map = kernel::KernelMeta::GetInstance();
-  if (!bin_map->ReadIndex(kernel::kGpuKernelMeta)) {
-    MS_LOG(INFO) << "kernel cache miss, cache directory will be created later.";
-  } else {
-    MS_LOG(INFO) << "cache initialize to[" << kernel::kGpuKernelMeta << "].";
-  }
+  bin_map->Initialize();
   MS_EXCEPTION_IF_NULL(kernel_graph);
   auto kernels = kernel_graph->execution_order();
   for (const auto &kernel : kernels) {

mindspore/ccsrc/device/gpu/gpu_kernel_runtime.cc

@@ -27,6 +27,7 @@
 #include "device/gpu/gpu_common.h"
 #include "common/utils.h"
 #include "device/gpu/gpu_memory_manager.h"
+#include "kernel/common_utils.h"
 
 namespace mindspore {
 namespace device {
@@ -104,6 +105,7 @@ void GPUKernelRuntime::ReleaseDeviceRes() {
   if (mem_manager_ != nullptr) {
     mem_manager_->FreeDeviceMemory();
   }
+  kernel::KernelMeta::GetInstance()->RemoveKernelCache();
 }
 
 void GPUKernelRuntime::AssignMemory(session::KernelGraph *graph) {

mindspore/ccsrc/kernel/common_utils.cc

@@ -114,53 +114,35 @@ bool IsAtomicNode(const CNodePtr &kernel_node) {
   return atomic_flag;
 }
 
-bool KernelMeta::ReadIndex(const std::string &bin_dir) {
-  DIR *dir = opendir(bin_dir.c_str());
-  if (dir == nullptr) {
+void KernelMeta::Initialize() {
+  kernel_meta_path_ = std::string(kGpuKernelMeta) + "_" + std::to_string(getpid()) + "/";
+  // remove old kernel cache
+  RemoveKernelCache();
+
 #if defined(_WIN32) || defined(_WIN64)
-    auto ret = mkdir(bin_dir.c_str());
+  auto ret = mkdir(kernel_meta_path_.c_str());
 #else
-    auto ret = mkdir(bin_dir.c_str(), S_IRWXG | S_IRWXU);
+  auto ret = mkdir(kernel_meta_path_.c_str(), S_IRWXG | S_IRWXU);
 #endif
   if (ret != 0) {
-      MS_LOG(INFO) << "kernel dir not exist[" << bin_dir << "].";
-      return false;
-    }
-    dir = opendir(bin_dir.c_str());
+    MS_LOG(INFO) << "kernel dir [" << kernel_meta_path_ << "], will be created later";
   }
+  initialized_ = true;
+}
 
+void KernelMeta::RemoveKernelCache() {
+  if (access(kernel_meta_path_.c_str(), 0) == 0) {
+    DIR *dir = opendir(kernel_meta_path_.c_str());
+    MS_EXCEPTION_IF_NULL(dir);
     struct dirent *entry;
     while ((entry = readdir(dir)) != nullptr) {
-    string bin_dir_tmp = bin_dir;
-    std::string cce_json = entry->d_name;
-    if (cce_json.length() <= 5) {
-      continue;
-    }
-
-    std::string suffix = cce_json.substr(cce_json.length() - 5);
-    if (suffix != kJsonSuffix) {
-      continue;
-    }
-
-    auto sp = cce_json.rfind('/');
-    if (sp != std::string::npos) {
-      continue;
-    }
-
-    sp = cce_json.rfind('.');
-    if (sp == std::string::npos) {
-      continue;
-    }
-    auto kernel_name = cce_json.substr(0, sp);
-    (void)bin_dir_tmp.append("/");
-    (void)bin_dir_tmp.append(cce_json);
-    kernel_meta_map_[kernel_name] = bin_dir_tmp;
+      std::string kernel_file = entry->d_name;
+      std::string kernel_file_realpath = kernel_meta_path_ + kernel_file;
+      (void)remove(kernel_file_realpath.c_str());
     }
     (void)closedir(dir);
-
-  MS_LOG(INFO) << "Cache kernel initialized, kernel size[" << kernel_meta_map_.size() << "].";
-  initialized_ = true;
-  return true;
+    (void)rmdir(kernel_meta_path_.c_str());
+  }
 }
 
 std::string KernelMeta::Search(const std::string &kernel_name) const {
@@ -176,11 +158,11 @@ std::string KernelMeta::Search(const std::string &kernel_name) const {
   }
 }
 
-bool KernelMeta::Insert(const std::string &kernel_name, const std::string &cce_json) {
+bool KernelMeta::Insert(const std::string &kernel_name, const std::string &kernel_json) {
   if (!initialized_) {
     return false;
   }
-  kernel_meta_map_[kernel_name] = cce_json;
+  kernel_meta_map_[kernel_name] = kernel_json;
   return true;
 }
 
@@ -191,8 +173,8 @@ bool CheckCache(const std::string &kernel_name) {
     MS_LOG(DEBUG) << "kernel cache is invalid.";
     return false;
   }
-  std::string cce_json = bin_map->Search(kernel_name);
-  bool ret = (!cce_json.empty());
+  std::string kernel_json = bin_map->Search(kernel_name);
+  bool ret = (!kernel_json.empty());
   if (ret) {
     MS_LOG(INFO) << "Kernel name:" << kernel_name << " has registed.";
   } else {
@@ -209,12 +191,12 @@ KernelPackPtr SearchCache(const std::string &kernel_name, const std::string &pro
     return nullptr;
   }
 
-  std::string cce_json = bin_map->Search(kernel_name);
-  if (!cce_json.empty()) {
+  std::string kernel_json = bin_map->Search(kernel_name);
+  if (!kernel_json.empty()) {
     KernelPackPtr kernel_pack = std::make_shared<KernelPack>();
     // just a tmp solution.
-    if (!kernel_pack->ReadFromJsonFile(cce_json, processor)) {
-      MS_LOG(DEBUG) << "Read cache json and bin file failed[" << cce_json << "].";
+    if (!kernel_pack->ReadFromJsonFile(kernel_json, processor)) {
+      MS_LOG(DEBUG) << "Read cache json and bin file failed[" << kernel_json << "].";
       return nullptr;
     } else {
       return kernel_pack;
@@ -227,26 +209,26 @@ KernelPackPtr SearchCache(const std::string &kernel_name, const std::string &pro
 
 KernelPackPtr InsertCache(const std::string &kernel_name, const std::string &processor) {
   MS_LOG(INFO) << "kernel name:" << kernel_name << ", processr:" << processor;
-  std::string cce_json;
+  KernelMeta *bin_map = KernelMeta::GetInstance();
+  std::string kernel_json;
   if (processor == kProcessorAiCore || processor == kProcessorAiCpu) {
-    cce_json = kCceKernelMeta;
+    kernel_json = kCceKernelMeta;
   } else {
-    cce_json = kGpuKernelMeta;
+    kernel_json = bin_map->GetKernelMetaPath();
   }
-  (void)cce_json.append(kernel_name).append(kJsonSuffix);
+  (void)kernel_json.append(kernel_name).append(kJsonSuffix);
   KernelPackPtr kernel_pack = std::make_shared<KernelPack>();
-  if (!kernel_pack->ReadFromJsonFile(cce_json, processor)) {
-    MS_LOG(DEBUG) << "Read json and bin file failed[" << cce_json << "].";
+  if (!kernel_pack->ReadFromJsonFile(kernel_json, processor)) {
+    MS_LOG(DEBUG) << "Read json and bin file failed[" << kernel_json << "].";
     return nullptr;
   }
 
-  KernelMeta *bin_map = KernelMeta::GetInstance();
   if (bin_map == nullptr) {
     MS_LOG(DEBUG) << "kernel cache is invalid.";
     return nullptr;
   }
-  if (bin_map->Insert(kernel_name, cce_json)) {
-    MS_LOG(INFO) << "Insert to cache success[" << cce_json << "], kernelname[" << kernel_name << "].";
+  if (bin_map->Insert(kernel_name, kernel_json)) {
+    MS_LOG(INFO) << "Insert to cache success[" << kernel_json << "], kernelname[" << kernel_name << "].";
   }
   return kernel_pack;
 }

mindspore/ccsrc/kernel/common_utils.h

@@ -30,7 +30,7 @@
 namespace mindspore {
 namespace kernel {
 constexpr auto kCceKernelMeta = "./kernel_meta/";
-constexpr auto kGpuKernelMeta = "/tmp/cuda_meta/";
+constexpr auto kGpuKernelMeta = "./cuda_meta";
 constexpr auto kProcessorAiCore = "aicore";
 constexpr auto kProcessorAiCpu = "aicpu";
 constexpr auto kProcessorCuda = "cuda";
@@ -51,9 +51,11 @@ using KernelMetaPtr = std::shared_ptr<KernelMetaInfo>;
 class KernelMeta {
  public:
   KernelMeta() = default;
-  bool ReadIndex(const std::string &bin_dir);
+  void Initialize();
+  void RemoveKernelCache();
   std::string Search(const std::string &kernel_name) const;
-  bool Insert(const std::string &kernel_name, const std::string &cce_json);
+  bool Insert(const std::string &kernel_name, const std::string &kernel_json);
+  std::string GetKernelMetaPath() { return kernel_meta_path_; }
 
   static KernelMeta *GetInstance() {
     static KernelMeta kernel_meta;
@@ -63,6 +65,7 @@ class KernelMeta {
 
  private:
   bool initialized_ = false;
+  std::string kernel_meta_path_;
   std::unordered_map<std::string, std::string> kernel_meta_map_;
 };