chore: import upstream snapshot with attribution

2026-07-13 13:33:03 +08:00
commit 5b57521aa1
8226 changed files with 3425766 additions and 0 deletions
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+//
+//  MultiThreadLoad.cpp
+//  MNNTests
+//
+//  Created by MNN on 2019/09/26.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include <MNN/Interpreter.hpp>
+#include <MNN/expr/ExprCreator.hpp>
+#include <thread>
+#include "MNNTestSuite.h"
+#include "TestUtils.h"
+#include "MNN_generated.h"
+using namespace MNN::Express;
+using namespace MNN;
+
+class MultiThreadLoadTest : public MNNTestCase {
+public:
+    virtual bool run(int precision) {
+        auto x1 = _Input({4}, NHWC, halide_type_of<float>());
+        auto x0 = _Input({4}, NCHW, halide_type_of<float>());
+        auto y  = _Add(x1, x0);
+        y       = _Abs(y);
+        y       = _Sign(y);
+        y       = _Square(y);
+        y       = _Cos(y);
+        y       = _Exp(y);
+        std::unique_ptr<MNN::NetT> net(new NetT);
+        Variable::save({y}, net.get());
+        flatbuffers::FlatBufferBuilder builderOutput(1024);
+        auto len = MNN::Net::Pack(builderOutput, net.get());
+        builderOutput.Finish(len);
+        int sizeOutput    = builderOutput.GetSize();
+        auto bufferOutput = builderOutput.GetBufferPointer();
+
+        auto forwardType = getCurrentType();
+        for(int n = 0; n < 100; ++n){
+            std::vector<std::thread> threads;
+            for (int i = 0; i < 4; ++i) {
+                threads.emplace_back([&]() {
+                    std::shared_ptr<Interpreter> interp(Interpreter::createFromBuffer(bufferOutput, sizeOutput));
+                    ScheduleConfig config;
+                    config.type = forwardType;
+                    auto session = interp->createSession(config);
+                    interp->runSession(session);
+                });
+            }
+            for (auto& t : threads) {
+                t.join();
+            }
+        }
+        return true;
+    }
+};
+MNNTestSuiteRegister(MultiThreadLoadTest, "expr/MultiThreadLoad");