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Merge pull request #69 from sprado/master

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Power over time
This commit is contained in:
Matthias Jung
2016-03-15 21:58:35 +01:00
parent d9e29a1976 99a623690a
commit 35e5a957ae
2 changed files with 34 additions and 8 deletions
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11
DRAMSys/analyzer/scripts/plots.py
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@@ -17,9 +17,9 @@ def plot(function):
def memory_utilisation_window(connection, tracePath):
# This function determines the average memory bandwidth over time in percentage and in Gbit/s.
# The average bandwidth over time is done dividing the time into windows of the same length and getting the average bandwidth in each window.
# Through the data from the database, DataStrobeEnd and DataStrobeBegin, it is possible to assess when a data transfer begins or ends.
# Hence, it is possible to ckeck when a data transfer happens and if it occupies or is inside a time window. Then, it is possible to determine the average bandwidth in percentage.
# Besides, extracting the data from the memory specs, it is possible to calculate the maximum data rate of the memory and then determine the bandwidth in Gbit/s.
# Through data from the database, DataStrobeEnd and DataStrobeBegin, it is possible to assess when a data transfer begins or ends.
# Hence, it is achievable to ckeck when a data transfer happens and if it occupies or is inside a time window. Then, it is attainable to determine the average bandwidth in percentage.
# Besides, extracting the data from the memory specs, it is feasible to calculate the maximum data rate of the memory and then determine the bandwidth in Gbit/s.
# The bandwidth data are then plotted in two graphics.
steps = 1000
@@ -28,7 +28,7 @@ def memory_utilisation_window(connection, tracePath):
total = cursor.fetchone()
windowSize = ceil(float(total[0])/float(steps))
if (windowSize == 0):
windowSize = 1
windowSize = 1
# print(steps)
# All possible cases of data transfers inside a time window
queryFull = """ SELECT sum(DataStrobeEnd - DataStrobeBegin) FROM transactions Where DataStrobeBegin > ? and DataStrobeEnd < ?""" # The data transfer begins and ends inside the time window
@@ -101,6 +101,7 @@ def memory_utilisation_window(connection, tracePath):
pdf = PdfPages(OUTPUT_FILE)
pdf.savefig()
pdf.close()
return
# @plot
@@ -117,7 +118,7 @@ def memory_utilisation_window(connection, tracePath):
# return "Saved as hist.png"
def generatePlots(pathToTrace):
def generatePlots(pathToTrace):
connection = sqlite3.connect(pathToTrace)
print("================================")

31
DRAMSys/simulator/src/simulation/Dram.h
View File

@@ -67,7 +67,10 @@ struct Dram : sc_module
// Power Model related
bool powerAnalysis = Configuration::getInstance().PowerAnalysis;
sc_time windowSize = sc_time(1000,SC_NS);
libDRAMPower * DRAMPower;
double totalEnergy = 0;
// Error Model related:
ErrorStorageMode ErrorStoreMode = Configuration::getInstance().ErrorStoreMode;
@@ -86,7 +89,7 @@ struct Dram : sc_module
if(powerAnalysis == true)
{
sc_time clk = Configuration::getInstance().memSpec.clk;
MemArchitectureSpec memArchSpec;
memArchSpec.burstLength = Configuration::getInstance().memSpec.BurstLength;
memArchSpec.dataRate = Configuration::getInstance().memSpec.DataRate;
@@ -164,6 +167,7 @@ struct Dram : sc_module
memSpec.memArchSpec = memArchSpec;
DRAMPower = new libDRAMPower( memSpec, 0 );
SC_THREAD(powerWindow);
}
printDebugMessage(string("ErrorStorageMode: ") + EnumToString(ErrorStoreMode));
@@ -189,8 +193,8 @@ struct Dram : sc_module
{
DRAMPower->updateCounters(true);
DRAMPower->calcEnergy();
cout << name() << string("\tTotal Energy: \t") + to_string(DRAMPower->getEnergy().total_energy) << endl;
cout << name() << string("\tAverage Power: \t") + to_string(DRAMPower->getPower().average_power) << endl;
printDebugMessage(string("\tCurrent Energy: \t") + to_string(DRAMPower->getEnergy().total_energy - totalEnergy));
printDebugMessage(string("\tAverage Power: \t") + to_string((DRAMPower->getEnergy().total_energy - totalEnergy)/windowSize.value()));
}
// Clean up:
for (auto e : ememory) {
@@ -198,6 +202,27 @@ struct Dram : sc_module
}
//std::cout << "Simulated Memory Size: " << memory.size() << endl; // TODO Aufrauemen
}
void powerWindow()
{
double currentAveragePower = 0;
double currentTotalEnergy = 0;
do
{
DRAMPower->updateCounters(false);
DRAMPower->calcEnergy();
currentTotalEnergy = DRAMPower->getEnergy().total_energy - totalEnergy;
currentAveragePower = currentTotalEnergy/windowSize.value();
totalEnergy = DRAMPower->getEnergy().total_energy;
printDebugMessage(string("\tCurrent Energy: \t") + to_string(currentTotalEnergy));
printDebugMessage(string("\tAverage Power: \t") + to_string(currentAveragePower));
wait(windowSize);
}
while(true);
}
virtual tlm::tlm_sync_enum nb_transport_fw(tlm::tlm_generic_payload& payload, tlm::tlm_phase& phase, sc_time& delay)
{