4 # @purpose Extract statistics from repeated runs of N-Body simulators
5 # @author Sam Moore (20503628) - 2012
11 import Gnuplot, Gnuplot.funcutils
12 plot = Gnuplot.Gnuplot(persist=0)
15 "single-thread" : "./single-thread/nbody -g -v 5"
18 programs.update({"mthread"+str(n) : "./mthread/nbody -g -v 5 -n "+str(n)})
22 def RunProgram(string):
23 p = subprocess.Popen(string.split(" "), stdout=subprocess.PIPE)
26 results.append(map(float, line.strip(" \r\n\t").split("\t")))
27 results.sort(key = lambda e : e[0])
30 def RunForSteps(program, field, steps):
32 #print(str(program) + " -s "+str(steps) + " " + str(field))
33 results.append(RunProgram(str(program) + " -s "+str(steps) + " " + str(field)))
36 def VaryField(program, steps, fields):
39 results.append(RunProgram(program + " -s " +str(steps) + " " + str(field)))
42 def VaryTime(program, field, time_min, time_max, time_inc=10):
44 for t in range(time_min, time_max, time_inc):
45 results.append(RunProgram(program + " -t "+str(t) + " " + str(field)))
49 plot("set xlabel \"steps\"")
50 plot("set ylabel \"real time (s)\"")
51 plot("set title \"Time .vs. Steps Computed\"")
52 plot("set key outside right")
56 fields = map(int, os.listdir("fields"))
57 fields.sort(key = lambda e : e)
61 data[p] = [RunForSteps(programs[p], "fields/"+str(n), 200), n]
63 if (len(data[p]) > 0):
64 plot.replot(Gnuplot.Data(data[p][0], title=str(p)+":"+str(n), with_="lp linecolor "+str(fields.index(n))))
66 #print(str(data.items()))
69 #for p in sorted(data.items(), key = lambda e : e[1][0][len(e[1][0])-1][1]):
70 # print(str(p[0])+":"+str(n)+"\t"+str(p[1][0][len(p[1][0])-1][1]))
75 if __name__ == "__main__":
76 sys.exit(main(sys.argv))