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main_sarsa.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import numpy as np
import os
from sarsa import SARSA
import time
def run_sarsa(area="kochi",simtime=30,meandeparture=15,numSim0=0,
numBlocks=5,simPerBlock=1000,name='r'):
t0 = time.time()
agentsProfileName = os.path.join(area, "data", "agentsdb.csv")
nodesdbFile = os.path.join(area, "data", "nodesdb.csv")
linksdbFile = os.path.join(area, "data", "linksdb.csv")
transLinkdbFile = os.path.join(area, "data", "actionsdb.csv")
transNodedbFile = os.path.join(area, "data", "transitionsdb.csv")
folderStateNames = os.path.join(area, f"state_{name}")
if not os.path.exists(folderStateNames):
os.mkdir(folderStateNames)
meanRayleighTest = meandeparture*60
simulTime = simtime*60
survivorsPerSim = []
if numSim0 == 0:
randomChoiceRate = 0.99
optimalChoiceRate = 1.0 - randomChoiceRate
case = SARSA(agentsProfileName = agentsProfileName,
nodesdbFile = nodesdbFile,
linksdbFile = linksdbFile,
transLinkdbFile = transLinkdbFile,
transNodedbFile = transNodedbFile,
meanRayleigh = meanRayleighTest,
discount =0.9,
folderStateNames = folderStateNames)
totalagents = np.sum(case.pedDB.shape[0])
for t in range( int(min(case.pedDB[:,9])) , simulTime ):
case.initEvacuationAtTime()
case.stepForward()
optimalChoice = bool(np.random.choice(2, 1, p=[randomChoiceRate , optimalChoiceRate]))
case.checkTarget(ifOptChoice = optimalChoice)
if not t % 10:
case.computePedHistDenVelAtLinks()
case.updateVelocityAllPedestrians()
outfile = os.path.join(folderStateNames , "sim_%09d.csv" % numSim0)
case.exportStateMatrix(outnamefile = outfile)
print("\n\n ***** Simu %d (t= %.2f)*****" % ( numSim0, (time.time()-t0)/60. ))
print("epsilon greedy - exploration: %f" % randomChoiceRate)
print(f"survived: {np.sum(case.pedDB[:,10] == 1)} / total: {totalagents}")
survivorsPerSim.append([numSim0, np.sum(case.pedDB[:,10] == 1)])
fname = f"survivorsPerSim_{numBlocks}x{simPerBlock}.csv"
outSurvivors= os.path.join(folderStateNames, fname)
np.savetxt(outSurvivors, np.array(survivorsPerSim), delimiter= ",", fmt= "%d" )
if survivorsPerSim[-1] == case.pedDB.shape[0]:
return
case= None
numSim= numSim0 +1
for b in range(numBlocks):
for s in range(simPerBlock):
eoe = int(0.8*simPerBlock) #end of exploration
if s < eoe:
randomChoiceRate = -1/(eoe)**2*s**2+1
else:
randomChoiceRate = 0.
# randomChoiceRate = (simPerBlock - s - 1.0)/(simPerBlock - s + 1.0) #1.0/(0.015*s + 1.0)
optimalChoiceRate = 1.0 - randomChoiceRate
case = SARSA(agentsProfileName = agentsProfileName ,
nodesdbFile= nodesdbFile,
linksdbFile= linksdbFile,
transLinkdbFile= transLinkdbFile,
transNodedbFile= transNodedbFile,
meanRayleigh = meanRayleighTest,
folderStateNames = folderStateNames)
namefile = os.path.join(folderStateNames , "sim_%09d.csv" % (numSim-1) )
case.loadStateMatrixFromFile(namefile = namefile)
totalagents = np.sum(case.pedDB.shape[0])
for t in range( int(min(case.pedDB[:,9])) , simulTime ):
case.initEvacuationAtTime()
case.stepForward()
optimalChoice = bool(np.random.choice(2, 1, p=[randomChoiceRate , optimalChoiceRate]))
case.checkTarget(ifOptChoice = optimalChoice)
if not t % 10:
case.computePedHistDenVelAtLinks()
case.updateVelocityAllPedestrians()
outfile = os.path.join(folderStateNames , "sim_%09d.csv" % numSim)
case.exportStateMatrix(outnamefile = outfile)
print("\n\n ***** Simu %d (t= %.2f)*****" % ( numSim , (time.time()-t0)/60. ))
print("epsilon greedy - exploration: %f" % randomChoiceRate)
print(f"survived: {np.sum(case.pedDB[:,10] == 1)} / total: {totalagents}")
#evaluate survivors in simulation
survivorsPerSim.append([numSim, np.sum(case.pedDB[:,10] == 1)])
fname = f"survivorsPerSim_{numBlocks}x{simPerBlock}.csv"
outSurvivors= os.path.join(folderStateNames, fname)
np.savetxt(outSurvivors, np.array(survivorsPerSim), delimiter= ",", fmt= "%d" )
if survivorsPerSim[-1] == case.pedDB.shape[0]:
return
case= None
numSim += 1
return
def kochi_sarsa():
simtime=30 #min
meandeparture=15 #min
numSim0= 0
numBlocks= 1
simPerBlock= 1000
name=f"sarsa_{simtime}_{meandeparture}_{simPerBlock}"
area="kochi"
run_sarsa(area=area,simtime=simtime, meandeparture=meandeparture,
numSim0=numSim0, numBlocks=numBlocks, simPerBlock=simPerBlock, name=name)
return
def arahama_sarsa():
simtime=67 #min
meandeparture=7 #min
numSim0= 0
numBlocks= 1
simPerBlock= 1000
name=f"sarsa_{simtime}_{meandeparture}_{simPerBlock}"
area="arahama"
run_sarsa(area=area,simtime=simtime, meandeparture=meandeparture,
numSim0=numSim0, numBlocks=numBlocks, simPerBlock=simPerBlock, name=name)
return
def new_kochi_sarsa():
simtime=30 #min
meandeparture=15 #min
numSim0= 0
numBlocks= 1
simPerBlock= 100
name=f"sarsa_{simtime}_{meandeparture}_{simPerBlock}"
area="new_kochi"
run_sarsa(area=area,simtime=simtime, meandeparture=meandeparture,
numSim0=numSim0, numBlocks=numBlocks, simPerBlock=simPerBlock, name=name)
return
if __name__ == "__main__":
kochi_sarsa()
# arahama_sarsa()
# new_kochi_sarsa()