New configuration option: DynamicTemperatureSimulation

DRAMSys/simulator/resources/simulations/sim-batch.xml

@@ -6,6 +6,7 @@
         <NumberOfTracePlayers value="4"/>
         <NumberOfMemChannels value="4"/>
         <ControllerCoreDisableRefresh value="0"/>
+        <DynamicTemperatureSimulation value="0"/>
     </simconfig>
 
     <memspecs>
@@ -25,5 +26,13 @@
             <device clkMhz="200">chstone-adpcm_32.stl</device>
         </tracesetup>
     </tracesetups>
+
+<!--
+    <temperature>
+        <StaticTempDefaultValue value="89" />
+        <DynamicTemperatureSimulation value="0" />
+    </temperature>
+-->
+
 </simulation>
 

DRAMSys/simulator/src/controller/core/configuration/Configuration.cpp

@@ -123,6 +123,8 @@ void Configuration::setParameter(std::string name, std::string value)
         NumberOfMemChannels = string2int(value);
     else if (name == "ControllerCoreDisableRefresh")
         ControllerCoreDisableRefresh = string2bool(value);
+    else if (name == "DynamicTemperatureSimulation")
+        DynamicTemperatureSimulation = string2bool(value);
     // Specification for ErrorChipSeed, ErrorCSVFile path and ErrorStoreMode
     else if(name == "ErrorChipSeed")
         ErrorChipSeed = string2int(value);

DRAMSys/simulator/src/controller/core/configuration/Configuration.h

@@ -78,6 +78,7 @@ struct Configuration
     unsigned int NumberOfTracePlayers = 1;
     unsigned int NumberOfMemChannels = 1;
     bool ControllerCoreDisableRefresh = false;
+    bool DynamicTemperatureSimulation = false;
 
     //MemSpec(from DRAM-Power XML)
     MemSpec memSpec;

DRAMSys/simulator/src/error/errormodel.cpp

@@ -42,6 +42,7 @@
 errorModel::errorModel()
 {
     // Get Configuration parameters:
+    dynamicTemepratureSimulation = Configuration::getInstance().DynamicTemperatureSimulation;
     busWidth = Configuration::getInstance().Buswidth;
     burstLenght = Configuration::getInstance().memSpec.BurstLength;
     numberOfColumns = Configuration::getInstance().memSpec.NumberOfColumns;
@@ -49,6 +50,7 @@ errorModel::errorModel()
     numberOfRows = Configuration::getInstance().memSpec.NumberOfRows;
     numberOfBitErrorEvents = 0;
 
+
     // Initialize the lastRow Access array:
     lastRowAccess = new sc_time[numberOfRows];
     for(unsigned int i = 0; i < numberOfRows; i++)
@@ -101,7 +103,10 @@ errorModel::errorModel()
     //weakCells[0].row = 0;
     //weakCells[0].dependent = true;
 
+    if (dynamicTemepratureSimulation == false) {
         setTemperature(89);
+    }
+
     markBitFlips();
 }
 
@@ -229,6 +234,7 @@ void errorModel::load(tlm::tlm_generic_payload &trans)
 
 void errorModel::markBitFlips()
 {
+    double temp = getTemperature();
     for(unsigned int row = 0; row < Configuration::getInstance().memSpec.NumberOfRows; row++)
     {
         // If the row has never been accessed ignore it and go to the next one
@@ -238,7 +244,7 @@ void errorModel::markBitFlips()
             sc_time interval = sc_time_stamp() - lastRowAccess[row];
 
             // Obtain the number of bit flips for the current temperature and the time interval:
-            unsigned int n = getNumberOfFlips(temperature, interval);
+            unsigned int n = getNumberOfFlips(temp, interval);
 
             // Check if the current row is in the range of bit flips for this interval
             // and temperature, if yes mark it as flipped:
@@ -494,6 +500,17 @@ void errorModel::setTemperature(double t)
     temperature = t;
 }
 
+double errorModel::getTemperature()
+{
+    if (dynamicTemepratureSimulation == true) {
+        // TODO Get temperature from 3d-ice simulator or other temperature source
+        // TODO Check all the criterion before requesting the temperature
+        return temperature;
+    }
+
+    return temperature;
+}
+
 void errorModel::parseInputData()
 {
     std::string fileName = Configuration::getInstance().ErrorCSVFile;

DRAMSys/simulator/src/error/errormodel.h

@@ -52,6 +52,7 @@ class errorModel
     void refresh(unsigned int row);
     void activate(unsigned int row);
     void setTemperature(double t);
+    double getTemperature(void);
 
   private:
     // Configuration Parameters:
@@ -60,6 +61,7 @@ class errorModel
     unsigned int numberOfColumns;
     unsigned int bytesPerColumn;
     unsigned int numberOfRows;
+    bool dynamicTemepratureSimulation;
 
     // Name:
     std::string name;

README.md

@@ -132,6 +132,7 @@ The XML code below shows a typic configuration:
         <NumberOfTracePlayers value="5"/>
         <NumberOfMemChannels value="1"/>
         <ControllerCoreDisableRefresh value="0"/>
+        <DynamicTemperatureSimulation value="0"/>
     </simconfig>
 
     <!-- Memory Specifications -->
@@ -231,6 +232,9 @@ Below are listed the configuration sections and configuration fields.
   - *ControllerCoreDisableRefresh* (boolean)
     - "1": disables refreshes
     - "0": normal operation (refreshes enabled)
+  - *DynamicTemperatureSimulation* (boolean)
+    - "1": enables the dynamic temperature simulation feature
+    - "0": static temperature during simulation
 
 - **Memory specification**