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PerformanceAnalysis.cpp
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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
* PerformanceAnalysis.cpp
* Copyright (C) 2014 LEDS - Univali <[email protected]>
* Laboratory of Embedded and Distributed Systems
* University of Vale do Itajaí
*
* Authors: Laboratory of Embedded and Distributed Systems (LEDS)
*
* Contact: Profº Dr. Cesar Albenes Zeferino {[email protected]}
*
* RedScarf is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RedScarf is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ------------------------------ Reviews -------------------------------------
* Date - Version - Author | Description
* ----------------------------------------------------------------------------
* 10/12/2014 - 1.0 - Eduardo Alves da Silva | Initial release
*
*/
#include "PerformanceAnalysis.h"
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <limits.h>
#include <string.h>
#ifdef DEBUG_POINTS_METHODS
#include <iostream>
#endif
PerformanceAnalysis::PerformanceAnalysis(unsigned int xSize, unsigned int ySize,
unsigned int dataWidth, float lower,float upper, float fClk, float tClk,
unsigned long channelBw, unsigned int fifoOutDepth,unsigned int flowControlType,
const char *workDir, const char *resultDir) :
TrafficAnalysis(xSize,ySize,dataWidth,lower,upper,fClk,tClk,channelBw,
fifoOutDepth,flowControlType,workDir,resultDir)
{
#ifdef DEBUG_POINTS_METHODS
std::cout << "Constructor Class Model/Analysis/PerformanceAnalysis" << std::endl;
#endif
this->packets = new std::vector<PacketInfo* >**[xSize];
flowAccNbOfPck = new unsigned long int**[xSize];
flowAccNbOfFlits = new unsigned long int**[xSize];
flowAccRequiredBw = new unsigned long int**[xSize];
flowAvgRequiredBw = new float**[xSize];
flowAvgRequiredBwNorm = new float**[xSize];
flowAcceptedTrafficFlits = new float**[xSize];
flowAcceptedTrafficBps = new float**[xSize];
flowAccPckWithDeadline = new unsigned long int***[xSize];
flowAccMissedDeadlines = new unsigned long int***[xSize];
flowMissedDeadlinesPer = new float***[xSize];
flowMetDeadlinesPer = new float***[xSize];
flowAccLatency = new unsigned long int**[xSize];
flowAvgLatency = new float**[xSize];
flowAccLatencyMinusAvgLatency = new float**[xSize];
flowStdevLatency = new float**[xSize];
flowMinLatency = new unsigned long int**[xSize];
flowMaxLatency = new unsigned long int**[xSize];
flowLatencyRng = new unsigned long int***[xSize];
flowLatencyRngInc = new unsigned long int**[xSize];
flowLatencyRngPcks = new unsigned long int***[xSize];
// Second dimension
for(unsigned int i = 0; i < xSize; i++) {
this->packets[i] = new std::vector<PacketInfo *>*[ySize];
flowAccNbOfPck[i] = new unsigned long int*[ySize];
flowAccNbOfFlits[i] = new unsigned long int*[ySize];
flowAccRequiredBw[i] = new unsigned long int*[ySize];
flowAvgRequiredBw[i] = new float*[ySize];
flowAvgRequiredBwNorm[i] = new float*[ySize];
flowAcceptedTrafficFlits[i] = new float*[ySize];
flowAcceptedTrafficBps[i] = new float*[ySize];
flowAccPckWithDeadline[i] = new unsigned long int**[ySize];
flowAccMissedDeadlines[i] = new unsigned long int**[ySize];
flowMissedDeadlinesPer[i] = new float**[ySize];
flowMetDeadlinesPer[i] = new float**[ySize];
flowAccLatency[i] = new unsigned long int*[ySize];
flowAvgLatency[i] = new float*[ySize];
flowAccLatencyMinusAvgLatency[i] = new float*[ySize];
flowStdevLatency[i] = new float*[ySize];
flowMinLatency[i] = new unsigned long int*[ySize];
flowMaxLatency[i] = new unsigned long int*[ySize];
flowLatencyRng[i] = new unsigned long int**[ySize];
flowLatencyRngInc[i] = new unsigned long int*[ySize];
flowLatencyRngPcks[i] = new unsigned long int**[ySize];
}
// Third dimension
for(unsigned int i = 0; i < xSize; i++) {
for(unsigned int x = 0; x < ySize; x++) {
this->packets[i][x] = new std::vector<PacketInfo*>();
flowAccNbOfPck[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowAccNbOfFlits[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowAccRequiredBw[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowAvgRequiredBw[i][x] = new float[MAX_FLOW_IDS];
flowAvgRequiredBwNorm[i][x] = new float[MAX_FLOW_IDS];
flowAcceptedTrafficFlits[i][x] = new float[MAX_FLOW_IDS];
flowAcceptedTrafficBps[i][x] = new float[MAX_FLOW_IDS];
flowAccPckWithDeadline[i][x] = new unsigned long int*[MAX_FLOW_IDS];
flowAccMissedDeadlines[i][x] = new unsigned long int*[MAX_FLOW_IDS];
flowMissedDeadlinesPer[i][x] = new float*[MAX_FLOW_IDS];
flowMetDeadlinesPer[i][x] = new float*[MAX_FLOW_IDS];
flowAccLatency[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowAvgLatency[i][x] = new float[MAX_FLOW_IDS];
flowAccLatencyMinusAvgLatency[i][x] = new float[MAX_FLOW_IDS];
flowStdevLatency[i][x] = new float[MAX_FLOW_IDS];
flowMinLatency[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowMaxLatency[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowLatencyRng[i][x] = new unsigned long int*[MAX_FLOW_IDS];
flowLatencyRngInc[i][x] = new unsigned long int[MAX_FLOW_IDS];
flowLatencyRngPcks[i][x] = new unsigned long int*[MAX_FLOW_IDS];
}
}
// Fourth dimension
for(unsigned int i = 0; i < xSize; i++) {
for(unsigned int x = 0; x < ySize; x++) {
for(unsigned int z = 0; z < MAX_FLOW_IDS; z++) {
flowAccPckWithDeadline[i][x][z] = new unsigned long int[MAX_CLASSES];
flowAccMissedDeadlines[i][x][z] = new unsigned long int[MAX_CLASSES];
flowMissedDeadlinesPer[i][x][z] = new float[MAX_CLASSES];
flowMetDeadlinesPer[i][x][z] = new float[MAX_CLASSES];
flowLatencyRng[i][x][z] = new unsigned long int[100];
flowLatencyRngPcks[i][x][z] = new unsigned long int[100];
}
}
}
}
TrafficAnalysis::StatusAnalysis PerformanceAnalysis::makeAnalysis() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::makeAnalysis" << std::endl;
#endif
// Read simulation logs
StatusAnalysis status = this->readLogsFiles();
if( status != TrafficAnalysis::Ok ) {
return status;
}
// Starting System Variables
this->initSystemVariables();
// Analyze all flows
status = this->analyzeAllFlows();
if( status != TrafficAnalysis::Ok ) {
return status;
}
// Creates the reports for all the flows
status = this->createReportsForAllFlows();
if( status != TrafficAnalysis::Ok ) {
return status;
}
// Analyze individual flows
return this->analyzeIndividualFlows();
}
TrafficAnalysis::StatusAnalysis PerformanceAnalysis::readLogsFiles() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Mode/Analysis/PerformanceAnalysis::readLogsFiles" << std::endl;
#endif
FILE* fpIn;
char filenameIn[512];
unsigned long int receivedPacketId = 0;
unsigned int xDestination = 0;
unsigned int yDestination = 0;
unsigned int xSource = 0;
unsigned int ySource = 0;
unsigned int flowId = 0;
unsigned int trafficClass = 0;
unsigned long long deadline = 0;
unsigned long long cycleCreationPacket = 0;
unsigned long long cycleReceivedHeader = 0;
unsigned long long cycleReceivedTrailer = 0;
unsigned int packetSize = 0;
float requiredBandwidth = 0;
for( unsigned int x = 0; x < xSize; x++ ) {
for( unsigned int y = 0; y < ySize; y++ ) {
xDestination = x;
yDestination = y;
// It opens the input file
sprintf(filenameIn,"%s/ext_%u_%u_out",workDir,x,y);
if( (fpIn = fopen(filenameIn,"rt")) == NULL ) {
return TrafficAnalysis::NoInputFile;
}
int scanResult = 0;
// It looks for the marker of begining of table of measures
do {
scanResult = fscanf(fpIn,"%s",str);
} while( strcmp(str,"#") != 0 );
// It extracts information related to each packet received
do {
scanResult = fscanf(fpIn,"%s", str);
if ((strcmp(str,"#") != 0)) {
receivedPacketId = (unsigned long int) atoi(str);
// scanResult = fscanf(fpIn,"%s", str);
// xDestination = (unsigned int) atoi(str);
// scanResult = fscanf(fpIn,"%s", str);
// yDestination = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
xSource = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
ySource = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
flowId = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
trafficClass = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
deadline = (unsigned long long int) atol(str);
scanResult = fscanf(fpIn,"%s", str);
cycleCreationPacket = (unsigned long long int) atol(str);
scanResult = fscanf(fpIn,"%s", str);
cycleReceivedHeader = (unsigned long long int) atol(str);
scanResult = fscanf(fpIn,"%s", str);
cycleReceivedTrailer = (unsigned long long int) atol(str);
scanResult = fscanf(fpIn,"%s", str);
packetSize = (unsigned int) atoi(str);
scanResult = fscanf(fpIn,"%s", str);
requiredBandwidth = (float) atof(str);
PacketInfo* pckInfo = new PacketInfo(receivedPacketId,xDestination,yDestination,xSource,ySource,flowId,
trafficClass,deadline,cycleCreationPacket,cycleReceivedHeader,
cycleReceivedTrailer,packetSize,requiredBandwidth);
this->packets[x][y]->push_back(pckInfo);
scanResult++;
}
} while ((strcmp(str,"#") != 0));
fclose(fpIn);
}
}
return TrafficAnalysis::Ok;
}
void PerformanceAnalysis::initSystemVariables() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::initSystemVariables" << std::endl;
#endif
// It determines how many cycles are spent by a header to travers a router with
// none contention
if (fifoOutDepth) {
nbOfCyclesPerRouter = 3; // With output fifos
} else {
nbOfCyclesPerRouter = 2; // Without output fifos
}
// Calculate time in router depends flow control type - On Handshake have overlay cycles in routing phase
tRA = ( flowControlType == 0 ? nbOfCyclesPerRouter-1 : nbOfCyclesPerRouter );
// It determines the number of cycles spent to send a flit
if (flowControlType) {
nbOfCyclesPerFlit = 1; // Credit-based flow control
} else {
nbOfCyclesPerFlit = 4; // Handshake flow control
}
// It the determines the available bandwidth
channelBwAvailable = (float) channelBw/nbOfCyclesPerFlit;
// It defines the initial values
accRequiredBw = 0.0;
accLatency = 0;
idealLatency = 0;
idealAccLatency = 0;
accNbOfPck = 0;
accNbOfFlits = 0;
minLatency = ULONG_MAX;//1000000;
maxLatency = 0;
smallestStartCycle = ULONG_MAX;//1000000;
smallestEndCycle = ULONG_MAX;
biggestEndCycle = 0;
accLatencyMinusAvgLatency = 0;
for (unsigned int trafficClass = 0; trafficClass < MAX_CLASSES; trafficClass++){
accMissedDeadlines[trafficClass] = 0;
accPckWithDeadline[trafficClass] = 0;
classAccNbOfPck[trafficClass] = 0;
classAccNbOfFlits[trafficClass] = 0;
classAccRequiredBw[trafficClass] = 0;
classAccPckWithDeadline[trafficClass] = 0;
classAccMissedDeadlines[trafficClass] = 0;
classMetDeadlinesPer[trafficClass] = 0;
classAccLatency[trafficClass] = 0;
classAccLatencyMinusAvgLatency[trafficClass] = 0;
classMinLatency[trafficClass] = ULONG_MAX;//10000000;
classMaxLatency[trafficClass] = 0;
}
}
unsigned long int PerformanceAnalysis::calculateIdealLatency(unsigned int nLinks, unsigned int nRouters, unsigned int payload) {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::calculateIdealLatency" << std::endl;
#endif
return ( nbOfCyclesPerFlit * nLinks + tRA * nRouters + nbOfCyclesPerFlit * payload );
}
TrafficAnalysis::StatusAnalysis PerformanceAnalysis::analyzeAllFlows() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::analyzeAllFlows" << std::endl;
#endif
unsigned int x = 0; // Index of x dimension
unsigned int y = 0; // Index of y dimension
unsigned int i = 0; // Index of packets in log files
//////////////////////////////////////////////////////////////////////////////
/// 1st SCAN: It determines the number of total packets received by TGs
//////////////////////////////////////////////////////////////////////////////
unsigned int totalNbOfPckRcvd = 0;
for( x = 0; x < xSize; x++ ) {
for( y = 0; y < ySize; y++) {
totalNbOfPckRcvd += this->packets[x][y]->size();
}
}
// If none packet was delivered, it returns with an error
if( totalNbOfPckRcvd == 0 ) {
return TrafficAnalysis::NoPacketsDelivered;
}
//////////////////////////////////////////////////////////////////////////////
/// 2nd SCAN: It determines the average latency and the accepted traffic
//////////////////////////////////////////////////////////////////////////////
unsigned long int latency = 0;
for( x = 0; x < xSize; x++ ) {
for( y = 0; y < ySize; y++ ) {
unsigned int nbOfPacketsReceived = this->packets[x][y]->size();
for( i = 0; i < nbOfPacketsReceived; i++) {
PacketInfo* pckInf = this->packets[x][y]->at(i);
unsigned int trafficClass = pckInf->getTrafficClass();
if( (pckInf->getReceivedPacketId() > ((unsigned long int)(lower * nbOfPacketsReceived)))
&&(pckInf->getReceivedPacketId() <= ((unsigned long int)(upper * nbOfPacketsReceived))) ) {
// Accumulated required BW
accRequiredBw += pckInf->getRequiredBandwidth();
classAccRequiredBw[trafficClass] += pckInf->getRequiredBandwidth();
// Packet latency in cycles
latency = pckInf->getLatency();
// Accumulated latency
accLatency += latency;
classAccLatency[trafficClass] += latency;
// Minimal latency
if( latency < minLatency ) { minLatency = latency;}
if( latency < classMinLatency[trafficClass] ) {classMinLatency[trafficClass] = latency;}
// Maximum latency
if(latency > maxLatency){ maxLatency = latency; }
if(latency > classMaxLatency[trafficClass]) { classMaxLatency[trafficClass] = latency; }
if( pckInf->getDeadline() != 0 ) {
accPckWithDeadline[trafficClass]++;
classAccPckWithDeadline[trafficClass]++;
if( (latency*tClk) > pckInf->getDeadline() ) {
accMissedDeadlines[trafficClass]++;
classAccMissedDeadlines[trafficClass]++;
}
}
// Number of packets and flits analyzed
accNbOfPck++;
classAccNbOfPck[trafficClass]++;
accNbOfFlits += pckInf->getPacketSize();
classAccNbOfFlits[trafficClass] += pckInf->getPacketSize();
// It identifies the end cycle of the last packet before the interval of analysis
// This time will define the begin of the interval used do calculate the Accepted Traffic
if (i != 0) {
PacketInfo* pckInf_previous = this->packets[x][y]->at(i-1);
endCycle = pckInf_previous->getCycleReceivedTrailer();
} else {
endCycle = 0;
}
if( endCycle < smallestEndCycle ) {
smallestEndCycle = endCycle;
}
}
// It get information to determine the time of simulation (in simulation cycles)
if( pckInf->getReceivedPacketId() == ((unsigned long int)(lower * nbOfPacketsReceived + 1)) ) {
startCycle = pckInf->getCycleCreationPacket();
if( startCycle < smallestStartCycle ) {
smallestStartCycle = startCycle;
}
}
if( pckInf->getReceivedPacketId() == ((unsigned long int)(upper * nbOfPacketsReceived)) ) {
endCycle = pckInf->getCycleReceivedTrailer();
if( endCycle > biggestEndCycle ) {
biggestEndCycle = endCycle;
}
}
}
}
}
// It calculates the simulated time
if (lower == 0)
simulatedTimeCycles = biggestEndCycle;// + 1;// - smallestStartCycle + 1;
else
simulatedTimeCycles = biggestEndCycle - smallestEndCycle;// + 1;// - smallestStartCycle + 1;
simulatedTimeNs = simulatedTimeCycles * tClk;
// It calculates the accepted traffic
acceptedTrafficFlits = (float) accNbOfFlits/(float)(xSize*ySize)/(float)simulatedTimeCycles;
// qDebug() << QString("Simulated time cycles: %1").arg(simulatedTimeCycles);
sprintf(str,"%.4f",acceptedTrafficFlits);
float tmpFloat = atof(str);
acceptedTrafficBps = (float) (tmpFloat*(dataWidth*fClk));
// It calculates the average latency
avgLatency = ((float)accLatency) / (float) accNbOfPck;
avgRequiredBw = accRequiredBw / (float) accNbOfPck;// / (float) (xSize*ySize);
// It do the same for the traffic classes
for( unsigned int trafficClass = 0; trafficClass < MAX_CLASSES; trafficClass++ ) {
// It calculates the accepted traffic for the current class
classAcceptedTrafficFlits[trafficClass] = (float) classAccNbOfFlits[trafficClass]/(float)(xSize*ySize)/(float)simulatedTimeCycles;
sprintf(str,"%.4f",classAcceptedTrafficFlits[trafficClass]);
tmpFloat = atof(str);
classAcceptedTrafficBps[trafficClass] = (float) (tmpFloat*(dataWidth*fClk));
// It calculates the average latency for the current class
classAvgLatency[trafficClass] = ((float) classAccLatency[trafficClass]) / (float) classAccNbOfPck[trafficClass];
classAvgRequiredBw[trafficClass] = (float) classAccRequiredBw[trafficClass] / (float) classAccNbOfPck[trafficClass];
}
//////////////////////////////////////////////////////////////////////////////
/// 3rd SCAN: It determines the standard deviation of the latency
//////////////////////////////////////////////////////////////////////////////
for( x = 0; x < xSize; x++ ) {
for( y = 0; y < ySize; y++ ) {
unsigned int nbOfPacketsReceived = this->packets[x][y]->size();
for( i = 0; i < nbOfPacketsReceived; i++) {
PacketInfo* pckInf = this->packets[x][y]->at(i);
if( (pckInf->getReceivedPacketId() > ((unsigned long int)(lower * nbOfPacketsReceived)))
&&(pckInf->getReceivedPacketId() <= ((unsigned long int)(upper * nbOfPacketsReceived))) ) {
unsigned long int latency = pckInf->getLatency();
accLatencyMinusAvgLatency += pow( ((float)(latency - avgLatency)),2 );
classAccLatencyMinusAvgLatency[pckInf->getTrafficClass()] += pow( ((float)(latency - classAvgLatency[pckInf->getTrafficClass()])),2 );
}
}
}
}
// It calculates the standard deviation
stdevLatency = sqrt( accLatencyMinusAvgLatency / (float)accNbOfPck );
for(unsigned int trafficClass = 0; trafficClass < MAX_CLASSES; trafficClass++) {
if( classAccNbOfPck[trafficClass] != 0.0 ) {
classStdevLatency[trafficClass] = sqrt( classAccLatencyMinusAvgLatency[trafficClass]/(float)classAccNbOfPck[trafficClass] );
}
}
//////////////////////////////////////////////////////////////////////////////
/// 4th SCAN: It determines the frequency of latencies and the ideal average latency
//////////////////////////////////////////////////////////////////////////////
// It initializes the counters
// Global latency range counters
latencyRngInc = (unsigned long int) roundf( ((float) maxLatency - minLatency ) / 100.0 );
if( latencyRngInc < 1 ) {
latencyRngInc = 1;
}
latencyRng[0] = minLatency;
latencyRngPcks[0] = 0;
for( i = 1; i < 100; i++ ) {
latencyRng[i] = latencyRng[i-1] + latencyRngInc;
latencyRngPcks[i] = 0;
}
for( i = 0; i < IDEAL_LATENCY_RNG_SIZE; i++ ) {
idealLatencyRng[i] = 0;
}
// Global latency range counters for each traffic class
for( unsigned int trafficClass = 0; trafficClass < MAX_CLASSES; trafficClass++ ) {
classLatencyRngInc[trafficClass] = (unsigned long int) roundf( ((float) classMaxLatency[trafficClass] - classMinLatency[trafficClass]) / 100.0 );
if( classLatencyRngInc[trafficClass] < 1 ) {
classLatencyRngInc[trafficClass] = 1;
}
classLatencyRng[trafficClass][0] = classMinLatency[trafficClass];
classLatencyRngPcks[trafficClass][0] = 0;
for( i = 1; i < 100; i++ ) {
classLatencyRng[trafficClass][i] = classLatencyRng[trafficClass][i-1] + classLatencyRngInc[trafficClass];
classLatencyRngPcks[trafficClass][i] = 0;
}
}
for( x = 0; x < xSize; x++ ) {
for( y = 0; y < ySize; y++ ) {
unsigned int nbOfPacketsReceived = this->packets[x][y]->size();
for( i = 0; i < nbOfPacketsReceived; i++) {
PacketInfo* pckInf = this->packets[x][y]->at(i);
unsigned int trafficClass = pckInf->getTrafficClass();
if ( (pckInf->getReceivedPacketId() > ((unsigned long int) (lower * nbOfPacketsReceived)))
&& (pckInf->getReceivedPacketId() <= ((unsigned long int) (upper * nbOfPacketsReceived)))) {
// It calculates the latency
latency = pckInf->getLatency();
// It increments the range latency counters
for( unsigned int z = 0; z < 99; z++ ) {
if( (latency >= latencyRng[z]) && (latency < latencyRng[z+1]) ) {
latencyRngPcks[z]++;
}
if( (latency >= classLatencyRng[trafficClass][z]) && (latency < classLatencyRng[trafficClass][z+1]) ) {
classLatencyRngPcks[trafficClass][z]++;
}
}
unsigned int nbOfRouters = pckInf->getNumberOfRoutersInPath();
unsigned int nbOfLinks = pckInf->getNumberOfLinksInPath();
idealLatency = calculateIdealLatency(nbOfLinks,nbOfRouters,pckInf->getPacketSize());
idealAccLatency += idealLatency;
// It increments the latency counters which determines how many
// packets are equal or greater that the ideal latency
idealLatencyIndex = (unsigned long int) roundl( (((float)latency/(float)idealLatency)-1)*10.0 );
if( idealLatencyIndex <= IDEAL_LATENCY_RNG_SIZE - 2 ) {
idealLatencyRng[idealLatencyIndex]++;
} else {
idealLatencyRng[IDEAL_LATENCY_RNG_SIZE-1]++;
}
}
}
}
}
idealAverageLatency = idealAccLatency / accNbOfPck;
for( unsigned int i = 0; i < MAX_CLASSES; i++ ) {
if( accPckWithDeadline[i] > 0 ) {
metDeadlinesPer[i] = 100 - ((float) ( (accMissedDeadlines[i]*100)/accPckWithDeadline[i]) );
} else {
metDeadlinesPer[i] = -1;
}
if( classAccPckWithDeadline[i] > 0 ) {
classMetDeadlinesPer[i] = 100 - ((float) ((classAccMissedDeadlines[i]*100)/classAccPckWithDeadline[i]) );
} else {
classMetDeadlinesPer[i] = -1;
}
}
return TrafficAnalysis::Ok;
}
TrafficAnalysis::StatusAnalysis PerformanceAnalysis::analyzeIndividualFlows() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::analyzeIndividualFlows" << std::endl;
#endif
unsigned int x,y,xSrc,ySrc,i;
for( x = 0; x < xSize; x++ ) {
for( y = 0; y < ySize; y++ ) {
//////////////////////////////////////////////////////////////////////////
///
/// It initializes the variables for flow analysis
///
///////////////////////////////////////////////////////////////////////////
// It initializes the variables used to detemine the metrics for individual flows
for (xSrc = 0; xSrc < xSize; xSrc++) {
for (ySrc = 0; ySrc < ySize; ySrc++) {
for (unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++) {
flowAccNbOfPck[xSrc][ySrc][flowId] = 0;
flowAccNbOfFlits[xSrc][ySrc][flowId] = 0;
flowAccRequiredBw[xSrc][ySrc][flowId] = 0;
flowAvgRequiredBwNorm[xSrc][ySrc][flowId] = 0;
flowAvgRequiredBw[xSrc][ySrc][flowId] = 0;
flowAcceptedTrafficFlits[xSrc][ySrc][flowId] = 0;
flowAcceptedTrafficBps[xSrc][ySrc][flowId] = 0;
for (i=0;i<MAX_CLASSES;i++){
flowAccPckWithDeadline[xSrc][ySrc][flowId][i] = 0;
flowAccMissedDeadlines[xSrc][ySrc][flowId][i] = 0;
flowMissedDeadlinesPer[xSrc][ySrc][flowId][i] = 0;
flowMetDeadlinesPer[xSrc][ySrc][flowId][i] = 0;
}
flowAccLatency[xSrc][ySrc][flowId] = 0;
flowAvgLatency[xSrc][ySrc][flowId] = 0;
flowAccLatencyMinusAvgLatency[xSrc][ySrc][flowId] = 0;
flowStdevLatency[xSrc][ySrc][flowId] = 0;
flowMinLatency[xSrc][ySrc][flowId] = ULONG_MAX;
flowMaxLatency[xSrc][ySrc][flowId] = 0;
}
}
}
//////////////////////////////////////////////////////////////////////////////
///
/// FLOW's 1st SCAN: It determines the average latency and the accepted traffic
///
//////////////////////////////////////////////////////////////////////////////
unsigned int nbOfPacketsReceived = this->packets[x][y]->size();
unsigned long int latency = 0;
for( i = 0; i < nbOfPacketsReceived; i++ ) {
PacketInfo* pckInf = this->packets[x][y]->at(i);
xSrc = pckInf->getXSource();
ySrc = pckInf->getYSource();
unsigned int flowId = pckInf->getFlowId();
unsigned int trafficClass = pckInf->getTrafficClass();
// It determines the accumulated latency and the accumulated number of flits received
if( (pckInf->getReceivedPacketId() > ((unsigned long int)(lower*nbOfPacketsReceived)))
&&(pckInf->getReceivedPacketId() <= ((unsigned long int)(upper*nbOfPacketsReceived))) ) {
flowAccRequiredBw[xSrc][ySrc][flowId] += pckInf->getRequiredBandwidth();
// Packet latency in cycles
latency = pckInf->getLatency();
// Accumulated latency
flowAccLatency[xSrc][ySrc][flowId] += latency;
// Minimal latency
if( latency < flowMinLatency[xSrc][ySrc][flowId] ) {
flowMinLatency[xSrc][ySrc][flowId] = latency;
}
// Maximum latency
if(latency > flowMaxLatency[xSrc][ySrc][flowId]) {
flowMaxLatency[xSrc][ySrc][flowId] = latency;
}
// Missed deadlines
if( pckInf->getDeadline() != 0 ) {
flowAccPckWithDeadline[xSrc][ySrc][flowId][trafficClass]++;
if( (latency * tClk) > pckInf->getDeadline() ) {
flowAccMissedDeadlines[xSrc][ySrc][flowId][trafficClass]++;
}
}
// Number of flits received
flowAccNbOfFlits[xSrc][ySrc][flowId] += pckInf->getPacketSize();
flowAccNbOfPck[xSrc][ySrc][flowId]++;
}
// It get information to determine the time of simulation (in simulation cycles)
if( pckInf->getReceivedPacketId() == ((unsigned long int) (lower * nbOfPacketsReceived + 1)) ) {
startCycle = pckInf->getCycleCreationPacket();
if( startCycle < smallestStartCycle ) {
smallestStartCycle = startCycle;
}
}
if( pckInf->getReceivedPacketId() == ((unsigned long int) (upper * nbOfPacketsReceived)) ) {
endCycle = pckInf->getCycleReceivedTrailer();
if( endCycle > biggestEndCycle ) {
biggestEndCycle = endCycle;
}
}
}
// It computes only the number of packets received between the lower and upper bounds
// Examples: Considering that 100 packets were received and bounds equal 0.1 and 0.9,
// it will consider 80% of the received packets (that is, 80 packets)
// acc_nb_of_pck += (unsigned long int)roundf(((upper - lower) * nb_of_pck_rcvd[x][y]));
// fscanf(fpIn,"%s", str);
// simulated_time_cycles = (unsigned long int) atol(str); // - warmup
// It calculates the target metrics of this scan
simulatedTimeCycles = biggestEndCycle - smallestStartCycle + 1;
simulatedTimeNs = simulatedTimeCycles * tClk;
for (xSrc = 0; xSrc < xSize; xSrc++) {
for (ySrc = 0; ySrc < ySize; ySrc++) {
for (unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++) {
if( flowAccNbOfPck[xSrc][ySrc][flowId] ) {
flowAvgRequiredBw[xSrc][ySrc][flowId] = ((float) flowAccRequiredBw[xSrc][ySrc][flowId])
/ (float) (flowAccNbOfPck[xSrc][ySrc][flowId]);
if (flowAvgRequiredBw[xSrc][ySrc][flowId] <= channelBwAvailable) {
flowAvgRequiredBwNorm[xSrc][ySrc][flowId] = flowAvgRequiredBw[xSrc][ySrc][flowId]
/ channelBwAvailable;
} else {
flowAvgRequiredBwNorm[xSrc][ySrc][flowId] = 1.0;
}
flowAvgLatency[xSrc][ySrc][flowId] = ((float) flowAccLatency[xSrc][ySrc][flowId])
/ (float) (flowAccNbOfPck[xSrc][ySrc][flowId]);
} else {
flowAvgRequiredBw[xSrc][ySrc][flowId] = 0.0f;
flowAvgRequiredBwNorm[xSrc][ySrc][flowId] = 0.0f;
flowAvgLatency[xSrc][ySrc][flowId] = 0.0f;
} // if ((flow_acc_nb_of_pck[x_src][y_src][flow_id]))
flowAcceptedTrafficFlits[xSrc][ySrc][flowId] = (float) flowAccNbOfFlits[xSrc][ySrc][flowId]
/ simulatedTimeCycles;
// qDebug()<<flowAccNbOfFlits[xSrc][ySrc][flowId];
// qDebug()<<simulatedTimeCycles;
// qDebug()<<flowAcceptedTrafficFlits[xSrc][ySrc][flowId];
// qDebug() << QString("%1 , %2, %3")
// .arg(flowAccNbOfFlits[xSrc][ySrc][flowId])
// .arg(simulatedTimeCycles)
// .arg(flowAcceptedTrafficFlits[xSrc][ySrc][flowId]);
flowAcceptedTrafficBps[xSrc][ySrc][flowId] = (float) flowAcceptedTrafficFlits[xSrc][ySrc][flowId] * dataWidth/(tClk/1000);
} // for (flow_id = 0; flow_id < MAX_FLOW_IDS; flow_id++)
} // for (y_src=0; y_src<y_size; y_src++)
} //for (x_src=0; x_src<x_size; x_src++)
//////////////////////////////////////////////////////////////////////////////
///
/// FLOW's 2nd SCAN: it determines the standard deviation of the latency
///
//////////////////////////////////////////////////////////////////////////////
// It opens the input file
for( i = 0; i < nbOfPacketsReceived; i++ ) {
PacketInfo* pckInf = this->packets[x][y]->at(i);
xSrc = pckInf->getXSource();
ySrc = pckInf->getYSource();
unsigned int flowId = pckInf->getFlowId();
if( (pckInf->getReceivedPacketId() > ((unsigned long int)(lower*nbOfPacketsReceived)))
&&(pckInf->getReceivedPacketId() <= ((unsigned long int)(upper*nbOfPacketsReceived))) ) {
latency = pckInf->getLatency();
flowAccLatencyMinusAvgLatency[xSrc][ySrc][flowId] += pow( (((float)latency) - flowAvgLatency[xSrc][ySrc][flowId]),2 );
}
}
/// CHANGE: Diferente do ATR -> Linha: 1114
for(xSrc = 0; xSrc < xSize; xSrc++) {
for( ySrc = 0; ySrc < ySize; ySrc++ ) {
for( unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++ ) {
// If requiredBw is greather than 0, it calculates the standard deviation, if not, it sets it to 0
if(flowAvgRequiredBw[xSrc][ySrc][flowId]) {
flowStdevLatency[xSrc][ySrc][flowId] = sqrt(flowAccLatencyMinusAvgLatency[xSrc][ySrc][flowId]/(float)flowAccNbOfPck[xSrc][ySrc][flowId]);
} else {
flowStdevLatency[xSrc][ySrc][flowId] = 0.0f;
}
}
}
}
//////////////////////////////////////////////////////////////////////////////
///
/// FLOW's 3rd SCAN: It determines the frequency of latencies and the ideal avg latency
///
//////////////////////////////////////////////////////////////////////////////
// It initializes the counters
// Flow latency range counters
for(xSrc = 0; xSrc < xSize; xSrc++) {
for(ySrc = 0; ySrc < ySize; ySrc++) {
for(unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++) {
flowLatencyRngInc[xSrc][ySrc][flowId] = (unsigned long int) roundf(((float)flowMaxLatency[xSrc][ySrc][flowId] -
(float)flowMinLatency[xSrc][ySrc][flowId])/100.0f);
if(flowLatencyRngInc[xSrc][ySrc][flowId] < 1) {
flowLatencyRngInc[xSrc][ySrc][flowId] = 1;
}
flowLatencyRng[xSrc][ySrc][flowId][0] = flowMinLatency[xSrc][ySrc][flowId];
flowLatencyRngPcks[xSrc][ySrc][flowId][0] = 0;
for ( i = 1; i < 100; i++) {
flowLatencyRng[xSrc][ySrc][flowId][i] = flowLatencyRng[xSrc][ySrc][flowId][i-1] +
flowLatencyRngInc[xSrc][ySrc][flowId];
flowLatencyRngPcks[xSrc][ySrc][flowId][i] = 0;
}
}
}
}
for( i = 0; i < IDEAL_LATENCY_RNG_SIZE; i++ ) {
idealLatencyRng[i] = 0;
}
/// CHANGE: Não era zerado o acumulador da latencia ideal
idealAccLatency = 0;
for( unsigned int pckIndex = 0; pckIndex < nbOfPacketsReceived; pckIndex++ ) {
PacketInfo* pckInf = this->packets[x][y]->at(pckIndex);
xSrc = pckInf->getXSource();
ySrc = pckInf->getYSource();
// It updates the latency counters
if( (pckInf->getReceivedPacketId() > ((unsigned long int) (lower * nbOfPacketsReceived)))
&&(pckInf->getReceivedPacketId() <= ((unsigned long int) (upper * nbOfPacketsReceived))) ) {
// It calculates the latency
latency = pckInf->getLatency();
// It increments the range latency counters
for( i = 0; i < 99; i++ ) {
if( (latency >= latencyRng[i]) && (latency < latencyRng[i+1]) ) {
latencyRngPcks[i]++;
}
}
for( unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++ ) {
for( i = 0; i < 99; i++ ) {
if( (latency >= flowLatencyRng[xSrc][ySrc][flowId][i])
&&(latency < flowLatencyRng[xSrc][ySrc][flowId][i+1]) ) {
flowLatencyRngPcks[xSrc][ySrc][flowId][i]++;
}
}
}
/// CHANGE: Linha 1227 no ATR
unsigned int nbOfRouters = pckInf->getNumberOfRoutersInPath();
unsigned int nbOfLinks = pckInf->getNumberOfLinksInPath();
// It determines the ideal latency for the flow
idealLatency = this->calculateIdealLatency(nbOfLinks,nbOfRouters,pckInf->getPacketSize());
idealAccLatency += idealLatency;
// It increments the latency counters which determines how many
// packets are equal or greater that the ideal latency
idealLatencyIndex = (unsigned long int) roundl( (((float) latency / (float)idealLatency)-1)*10.0f );
if( idealLatencyIndex <= IDEAL_LATENCY_RNG_SIZE-2 ) {
idealLatencyRng[idealLatencyIndex]++;
} else {
idealLatencyRng[IDEAL_LATENCY_RNG_SIZE-1]++;
}
}
}
// It determines the flow's missed deadlines
for (xSrc = 0; xSrc < xSize; xSrc++) {
for (ySrc = 0; ySrc < ySize; ySrc++) {
for (unsigned int flowId = 0; flowId < MAX_FLOW_IDS; flowId++) {
for (i = 0; i < MAX_CLASSES; i++){
if (flowAccPckWithDeadline[xSrc][ySrc][flowId][i] > 0) {
flowMissedDeadlinesPer[xSrc][ySrc][flowId][i] =
( ((float)flowAccMissedDeadlines[xSrc][ySrc][flowId][i]*100.0f)/
(float) flowAccPckWithDeadline[xSrc][ySrc][flowId][i] );
flowMetDeadlinesPer[xSrc][ySrc][flowId][i] = 100 -
( ((float) flowAccMissedDeadlines[xSrc][ySrc][flowId][i]*100.0f)/
(float) flowAccPckWithDeadline[xSrc][ySrc][flowId][i] );
} else {
flowMissedDeadlinesPer[xSrc][ySrc][flowId][i] = -1.0f;
flowMetDeadlinesPer[xSrc][ySrc][flowId][i] = -1.0f;
}
}
}
}
}
TrafficAnalysis::StatusAnalysis status = this->createReportsForIndividualFlows(x,y);
if( status != TrafficAnalysis::Ok ) {
return status;
}
} // for(y=0;y<ySize;y++)
} // for(x=0;x<xSize;x++)
return TrafficAnalysis::Ok;
}
TrafficAnalysis::StatusAnalysis PerformanceAnalysis::createReportsForAllFlows() {
#ifdef DEBUG_POINTS_METHODS
std::cout << "Model/Analysis/PerformanceAnalysis::createReportsForAllFlows" << std::endl;
#endif
FILE* fpOut;
// It creates the summary report
sprintf(str,"%s/summary",this->resultDir);
if( (fpOut=fopen(str,"a+t")) == NULL ) {
printf("Error: Impossible to create file %s",str);
return TrafficAnalysis::NoOutputFile;
} else {
sprintf(str,"%.1f\t%lu\t%.4f\t%.4f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f\t%.1f",
fClk,
accNbOfPck,
(avgRequiredBw <= channelBwAvailable ? avgRequiredBw/channelBwAvailable : 1.0f ),
acceptedTrafficFlits,
idealAverageLatency,
avgLatency,
stdevLatency,
(float)minLatency,
(float)maxLatency,
avgRequiredBw, // bps
acceptedTrafficBps, // bps
idealAverageLatency * tClk, // ns
avgLatency * tClk, // ns
// stdevLatency, //,* tclk, // ns
(float)minLatency * tClk, // ns
(float)maxLatency * tClk, // ns
metDeadlinesPer[0],
metDeadlinesPer[1],
metDeadlinesPer[2],
metDeadlinesPer[3]
);
// It replaces ',' by '.'
unsigned int i = 0;
do {
if(str[i]==',') str[i] = '.';
i++;
} while( str[i] != '\0' );
fprintf(fpOut,"%s\n",str);
fclose(fpOut);
}
// It creates the summary histogram report
sprintf(str,"%s/Results/summary_latency_histogram",workDir);
if( (fpOut=fopen(str,"wt")) == NULL ) {
printf("ERROR: Impossible to create file %s",str);
return TrafficAnalysis::NoOutputFile;
} else {
for(unsigned int x = 0; x < 100; x++) {
if( latencyRngPcks[x] != 0 ) {
float tmpFloat = 100.0f * ((float)latencyRngPcks[x]/(float)accNbOfPck);
sprintf(str,"%lu\t%lu\t%.1f",latencyRng[x],latencyRngPcks[x],tmpFloat);
fprintf(fpOut,"%s\n",str);
}
}
fclose(fpOut);
}
// It creates the summary report for the traffic classes
for( unsigned int trafficClass = 0; trafficClass < MAX_CLASSES; trafficClass++ ) {
if( classAccNbOfPck[trafficClass] > 0 ) {
sprintf(str,"%s/class_%u",resultDir,trafficClass);
if( (fpOut=fopen(str,"a+t")) == NULL ) {
printf("ERROR: Impossible to create file %s",str);
return TrafficAnalysis::NoOutputFile;
} else {
// It determines the average normalized required BW for the current class
if( classAvgRequiredBw[trafficClass] <= channelBwAvailable ) {
classAvgRequiredBwNorm[trafficClass] = classAvgRequiredBw[trafficClass] / channelBwAvailable;
} else {
classAvgRequiredBwNorm[trafficClass] = 1.0f;
}
// It determines the %Met deadlines for the current class
for(unsigned int i = 0; i < MAX_CLASSES; i++) {
metDeadlinesPer[i] = -1;
}
metDeadlinesPer[trafficClass] = classMetDeadlinesPer[trafficClass];