plotClonesPyRoot.py

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from __future__ import print_function
from ROOT import *
import sys
import re
"""
Prepare the clones plot.
Parses the end of the output file, printed by the destructors of the CPUCruncher.
A line with the pattern "Summary: name=" is looked for.
The number of Events in flight is parsed as well.
"""
 
# configure
Color = kBlue
MarkerStyle = kFullStar
MarkerSize = 3.8
 
NEventsInFlight = 0
NThreads = -1
 
 
def parseLog(logfilename):
    global NEventsInFlight
    global NThreads
    ifile = open(logfilename, "r")
    lines = ifile.readlines()
    vals = []
    for line in lines:
        if "Summary: name=" in line:
            runtime_nclones = map(
                float,
                re.match(
                    ".* avg_runtime= ([0-9]*.[0-9]*|[0-9]*.[0-9]*e-[0-9]*) n_clones= ([0-9]).*",
                    line).groups())
            vals.append(runtime_nclones)
        elif "Running with" in line:
            NEventsInFlight, NThreads = map(
                int,
                re.match(
                    ".* Running with ([0-9]*) parallel events.*algorithms, ([0-9]*) threads",
                    line).groups())
 
    return vals
 
 
def createGraph(vals):
    graph = TGraph(len(vals))
    counter = 0
    for runtime, nclones in vals:
        graph.SetPoint(counter, runtime, nclones)
        counter += 1
 
    graph.SetMarkerStyle(MarkerStyle)
    graph.SetMarkerSize(MarkerSize)
    graph.SetMarkerColor(Color)
    graph.SetTitle(
        "GaudiHive Speedup (Brunel, 100 evts);Algorithm Runtime [s];Number of Clones"
    )
    return graph
 
 
def getText(x, y, text, scale, angle, colour, font, NDC=False):
    lat = TLatex(
        float(x), float(y),
        "#scale[%s]{#color[%s]{#font[%s]{%s}}}" % (scale, colour, font, text))
 
    lat.SetNDC(NDC)
    if angle != 0.:
        lat.SetTextAngle(angle)
    return lat
 
 
def getCountLatexes(vals, xmax):
    # print vals
    def getNclones(runtime_nclones):
        return runtime_nclones[1]
 
    max_nclones = int(max(vals, key=getNclones)[1])
 
    latexes = []
    for i in range(1, max_nclones + 1):
        n_algos = len(
            filter(lambda runtime_nclones: runtime_nclones[1] == i, vals))
        latexes.append(getText(xmax * 1.01, i, n_algos, .7, 0, 600, 12))
 
    label = getText(.95, .55, "Total", .8, 270, 600, 12, True)
 
    latexes.append(label)
 
    return latexes
 
 
def doPlot(logfilename):
    global NEventsInFlight
    global NThreads
    vals = parseLog(logfilename)
    graph = createGraph(vals)
    nalgorithms = len(vals)
 
    canvas = TCanvas("Clones", "Clones", 1024, 768)
    canvas.cd()
    canvas.SetGrid()
    graph.Draw("AP")
 
    # Latex
 
    countLatexes = getCountLatexes(vals, graph.GetXaxis().GetXmax())
    map(lambda latex: latex.Draw(), countLatexes)
    evtsIf = getText(
        .6, .365,
        "#splitline{#splitline{%s Simultaneous Events}{%s Threads}}{%s Algorithms}"
        % (NEventsInFlight, NThreads, nalgorithms), .8, 0, 2, 12, True)
    evtsIf.Draw()
 
    a = raw_input("press enter to continue")
    canvas.Print("PlotClones.png")
 
 
if __name__ == "__main__":
    argc = len(sys.argv)
    if argc != 2:
        print("Usage: plotClonesPyRoot.py logfilename")
        sys.exit(1)
    doPlot(sys.argv[1])