Introduce SimulationTime config

Use SimulationTime to forcefully stop simulation at a specified point in
time.

src/configuration/DRAMSys/config/SimConfig.h

@@ -72,6 +72,7 @@ struct SimConfig
     std::optional<bool> ThermalSimulation;
     std::optional<bool> UseMalloc;
     std::optional<unsigned int> WindowSize;
+    std::optional<double> SimulationTime;
 };
 
 NLOHMANN_JSONIFY_ALL_THINGS(SimConfig,
@@ -86,7 +87,8 @@ NLOHMANN_JSONIFY_ALL_THINGS(SimConfig,
                             StoreMode,
                             ThermalSimulation,
                             UseMalloc,
-                            WindowSize)
+                            WindowSize,
+                            SimulationTime)
 
 } // namespace DRAMSys::Config
 

src/simulator/main.cpp

@@ -57,7 +57,7 @@ int sc_main(int argc, char** argv)
         DRAMSys::Config::from_path(baseConfig.c_str(), resourceDirectory.c_str());
 
     Simulator simulator(std::move(configuration), std::move(resourceDirectory));
-    Simulator::run();
+    simulator.run();
 
     return 0;
 }

src/simulator/simulator/Simulator.cpp

@@ -156,7 +156,15 @@ void Simulator::run()
     auto start = std::chrono::high_resolution_clock::now();
 
     // Start the SystemC simulation
-    sc_core::sc_start();
+    if (configuration.simconfig.SimulationTime.has_value())
+    {
+        sc_core::sc_start(
+            sc_core::sc_time(configuration.simconfig.SimulationTime.value(), sc_core::SC_SEC));
+    }
+    else
+    {
+        sc_core::sc_start();
+    }
 
     if (!sc_core::sc_end_of_simulation_invoked())
     {

src/simulator/simulator/Simulator.h

@@ -49,7 +49,7 @@ public:
     Simulator(DRAMSys::Config::Configuration configuration,
               std::filesystem::path resourceDirectory);
 
-    static void run();
+    void run();
 
 private:
     std::unique_ptr<Initiator> instantiateInitiator(const DRAMSys::Config::Initiator& initiator);