fix(lite/load_and_run): fix fast-run invalid in fitting mode

GitOrigin-RevId: a6761c1a35030dc1896c4957988fef357385f201

lite/load_and_run/src/options/strategy_options.cpp

 #include "strategy_options.h"
+#include "megbrain/utils/persistent_cache.h"
+#include "megdnn/algorithm_cache.h"
 #include "models/model_mdl.h"
-
 using namespace lar;
 
 DECLARE_bool(c_opr_lib_with_param);
@@ -47,6 +48,15 @@ void StrategyOption::config_model(
             //! make output specification
             model_ptr->make_output_spec();
         }
+    } else if (runtime_param.stage == RunStage::AFTER_MODEL_RUNNING) {
+        mgb_log_debug("clear cache");
+#if LITE_WITH_OPENCL
+        megcoreOpenCLClearGlobalData();
+#else
+        megdnn::AlgorithmCache::instance().clear();
+        //! WARNING:this is used to clean the profile result cache
+        //! auto profile_cache = mgb::PersistentCache::inst().get_cache();
+#endif
     }
 }
 

lite/test/test_lar_fast_run_options.cpp

+#include <gtest/gtest.h>
+#include <string.h>
+#include <memory>
+#include "./test_common.h"
+#include "test_options.h"
+using namespace lar;
+DECLARE_bool(lite);
+DECLARE_int32(iter);
+DECLARE_bool(fast_run);
+namespace {
+BOOL_OPTION_WRAP(fast_run);
+BOOL_OPTION_WRAP(lite);
+INT32_OPTION_WRAP(iter, 10);
+}  // anonymous namespace
+
+TEST(TestLarFastRun, FAST_RUN) {
+    double heristic_time = 0, fast_run_time = 0;
+    lite::Timer timer("profile");
+    {
+        std::string model_path = "./shufflenet.mge";
+        timer.reset_start();
+        TEST_INT32_OPTION(iter, 1);
+        heristic_time = timer.get_used_time();
+    }
+
+    {
+        std::string model_path = "./shufflenet.mge";
+        timer.reset_start();
+        DEFINE_INT32_WRAP(iter, 1);
+        TEST_BOOL_OPTION(fast_run);
+        fast_run_time = timer.get_used_time();
+    }
+    //! profile time is longer than excute time
+    ASSERT_LT(heristic_time, fast_run_time);
+}
+
+TEST(TestLarFastRun, FAST_RUN_LITE) {
+    double heristic_time = 0, fast_run_time = 0;
+    lite::Timer timer("profile");
+    //! clear profile cache
+    auto profile_cache = mgb::PersistentCache::inst().get_cache();
+    DEFINE_BOOL_WRAP(lite);
+    {
+        std::string model_path = "./shufflenet.mge";
+        timer.reset_start();
+        TEST_INT32_OPTION(iter, 1);
+        heristic_time = timer.get_used_time();
+    }
+
+    {
+        std::string model_path = "./shufflenet.mge";
+        timer.reset_start();
+        DEFINE_INT32_WRAP(iter, 1);
+        TEST_BOOL_OPTION(fast_run);
+        fast_run_time = timer.get_used_time();
+    }
+    //! profile time is longer than excute time
+    ASSERT_LT(heristic_time, fast_run_time);
+}
\ No newline at end of file