compareOutputFiles.py

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from __future__ import print_function
 
import sys
from multiprocessing import Process, Queue
 
from Configurables import LHCbApp
from Gaudi.Configuration import *
from ROOT import TBuffer, TBufferFile, TFile
 
from GaudiPython import AppMgr, gbl
 
#
# loadFile.py
# -----------
# Open a dst file for inspection
#
 
 
def checkKeys(name):
    # Check the TTree keys in each file
    fname = name[4:]  # TFile doesn't need the "PFN:" prefix
    tf = TFile(fname, "REC")
 
 
importOptions("$STDOPTS/LHCbApplication.opts")
importOptions("$ENV_PROJECT_SOURCE_DIR/RootCnv/options/Setup.opts")
 
OutputStream("DstWriter").Output = ""
HistogramPersistencySvc().OutputFile = ""
MessageSvc(OutputLevel=ERROR)
EventSelector().PrintFreq = 100
 
ApplicationMgr(OutputLevel=ERROR, AppName="File Check - Serial vs Parallel")
# TopAlg = ['UnpackMCParticle', 'UnpackMCVertex'] )
 
PAR = "PARALLEL"
SER = "SERIAL"
 
 
def CompareTrees(pname, sname):
    pf = TFile(pname, "REC")
    sf = TFile(sname, "REC")
    event = "_Event"
    pfks = pf.GetListOfKeys()
    sfks = sf.GetListOfKeys()
    pfkeys = list([pfk.GetName() for pfk in pfks])
    pfkeys.sort()
    sfkeys = list([sfk.GetName() for sfk in sfks])
    sfkeys.sort()
    pMeta = []
    pEvent = []
    pOther = []
    for k in pfkeys:
        if k.startswith(event):
            pEvent.append(k)
        elif k.startswith("##"):
            pMeta.append(k)
        else:
            pOther.append(k)
    sMeta = []
    sEvent = []
    sOther = []
    for k in sfkeys:
        if k.startswith(event):
            sEvent.append(k)
        elif k.startswith("##"):
            sMeta.append(k)
        else:
            sOther.append(k)
 
    if pMeta == sMeta:
        pass
    else:
        print("Meta Data differs")
 
    if pEvent == sEvent:
        pass
    else:
        print("Event data differs")
 
    if pOther != sOther:
        pset = set(pOther)
        sset = set(sOther)
        pExtra = pset - sset
        sExtra = sset - pset
        if pExtra:
            print("Extra Data in parallel file : ", pExtra)
        if sExtra:
            print("Extra Data in serial   file : ", sExtra)
        if sExtra or pExtra:
            print("Files will have different sizes")
    pf.Close()
    sf.Close()
 
 
def switchDict(d):
    # switch a dictionary around ;  make the values the keys, and vice versa
    # only works if all values are unique
    nkeys = len(d.keys())
    vals = d.values()
    nvals = len(vals)
    for v in vals:
        if vals.count(v) > 1:
            print("Dictionary cannot be switched, values not unique")
            return None
    print("Dict has keys/values : %i/%i" % (nkeys, nvals))
    pairs = d.items()  # returns (key, val) tuples in a list
    newd = {}
    for k, entry in pairs:
        newd[entry] = k
    return newd
 
 
def printDict(d, name="unspecified"):
    # Print out a dictionary in the form
    #
    # Dictionary Name :
    #   key     value
    #   key     value
    #   ...
    #
    print("-" * 80)
    print("Dictionary %s : " % (name))
    for k in iter(d.keys()):
        print("\t", k, "\t", d[k])
    print("-" * 80)
 
 
def Reader(readerType, filename, qacross, qToEngine):
    #
    # Process for reading a file
    # One process for reading Serial File, another for Parallel File
    #
    # First the order of events is determined, (parallel != serial, usually)
    #
    # Then the events are run *in order* using AppMgr().runSelectedEvents(pfn, evtNumber)
    # on both Serial-Reader and Parallel-Reader processes.
    #
    # The string repr of everything in the TES is placed in a dictionary and
    # sent to the comparison Process, which compares the two dictionaries
    #
    a = AppMgr()
    sel = a.evtsel()
    evt = a.evtsvc()
 
    header = "/Event/Rec/Header"
    sel.open(filename)
    ct = 0
    order = {}
    fname = filename[4:]  # runSelectedEvents doesn't need the "PFN:" prefix
 
    # determine the ordering
    while True:
        a.run(1)
        if evt[header]:
            eNumber = int(evt[header].evtNumber())
            order[eNumber] = ct
            ct += 1
        else:
            break
 
    if readerType == SER:
        # send the ordering details to the parallel-reader
        order = switchDict(order)
        qacross.put(order)
        qacross.put(None)
        # changeName
        serOrder = order
    elif readerType == PAR:
        # receive the serial ordering from queue,  and send ordering to SerialReader
        for serOrder in iter(qacross.get, None):
            pass
        lsks = len(serOrder.keys())
        lpks = len(order.keys())
        print("Events in Files (serial/parallel) : %i / %i" % (lsks, lpks))
 
    # now run files in the order specified by the serial ordering
    # and send them one by one to the comparison engine
    for i in iter(serOrder.keys()):
        if readerType == PAR:
            i = order[serOrder[i]]
 
        a.runSelectedEvents(fname, i)
        lst = evt.getList()
 
        lst.sort()
        ascii = dict([(l, (evt[l].__class__.__name__, evt[l].__repr__())) for l in lst])
        qToEngine.put(ascii)
    qToEngine.put(None)
    print("%s Reader Finished" % (readerType))
 
 
def ComparisonEngine(pQueue, sQueue):
    # The Comparison Engine runs on a seperate forked process and receives
    # events in pairs, one each from Serial FileReader and Parallel FileReader
    #
    # The events arrive in Dictionary Format, d[path]=(className, string_repr)
    # and are compared using the compareEvents method
    #
    # Results are stored in an array of bools (PerfectMatch=True, Diff=False)
    #
    results = []
    while True:
        pitem = pQueue.get()
        sitem = sQueue.get()
        if pitem == sitem == None:
            print("Termination Signals received ok")
            break
        elif pitem == None:
            print("pitem != sitem : ", pitem, sitem)
            break
        elif sitem == None:
            print("pitem != sitem : ", pitem, sitem)
            break
        results.append(compareEvents(pitem, sitem))
    print("=" * 80)
    print("Comparison Engine Finished")
    print("-" * 80)
    print("Total Events Checked : %i" % (len(results)))
    print("Perfect Matches      : %i" % (sum(results)))
    print("Errors               : %i" % (len(results) - sum(results)))
    print("=" * 80)
 
 
def checkForAddressDifference(a, b):
    # the __repr__() method for Event Data Objects will return a generic
    # string "DataObject at 0xADDRESS" for non-Pythonised objects
    # If these objects have the same path, they are equal, but this
    # cannot be tested with "==" in Python, as the memory address will
    # be different for the two different DataObjects, so this method
    # will check if the difference is in the address
    #
    # args : a, b two string representations
    ref = "DataObject at 0x"
    if a[:16] == b[:16] == ref:
        return True
    else:
        return False
 
 
def compareEvents(s, p):
    # events in form of dictionary, with form
    # d[ path ] = tuple( className, string_repr )
 
    # check 1 : number of keys (paths)
    sks = s.keys()
    pks = p.keys()
    sks.sort()
    pks.sort()
    if len(sks) == len(pks):
        pass
    else:
        # There may be extra keys in the parallel file
        # example: DstWriter may ask for /Event/Prev/MC/Header#1
        #          but in TESSerializer, *all* DataObjects will be sent
        #          including /Event/Prev and /Event/Prev/MC
 
        # check for extra keys in the parallel file which are just containing DataObjects
        # if found, remove them
 
        extras = list(set(pks) - set(sks))
        for e in extras:
            if p[e][0] == "DataObject":
                pks.remove(e)
            else:
                print("Extra Other thing found!", e, p[e][0])
                return False
 
    # check 2 : same paths?
    if sks == pks:
        pass
    else:
        return False
 
    # check 3 : check the content
    l = len(sks)
    diffs = []
    for i in range(l):
        key = sks[i]
        # compare class name
        if s[key][0] == p[key][0]:
            pass
        else:
            diffs.append(key)
        # compare string representation
        if s[key][1] == p[key][1]:
            pass
        elif checkForAddressDifference(p[key][1], s[key][1]):
            pass
        else:
            diffs.append(key)
 
    # finish
    if diffs:
        return False
    else:
        return True
 
 
def CheckFileRecords(par, ser):
 
    print("Checking File Records")
 
    parFSR = GetFSRdicts(par)
    serFSR = GetFSRdicts(ser)
 
    diff1 = set(parFSR["TimeSpanFSR"].iteritems()) - set(
        serFSR["TimeSpanFSR"].iteritems()
    )
    diff2 = set(parFSR["EventCountFSR"].iteritems()) - set(
        serFSR["EventCountFSR"].iteritems()
    )
 
    print(
        "\nDifferent entries in TimeSpanFSR:  \t"
        + str(len(diff1))
        + "\nDifferent entries in EventCountFSR:\t"
        + str(len(diff2))
    )
 
    for k in ["LumiFSRBeamCrossing", "LumiFSRBeam2", "LumiFSRNoBeam"]:
        diff3 = set(parFSR[k]["key"]) - set(serFSR[k]["key"])
        diff4 = set(parFSR[k]["incr"]) - set(serFSR[k]["incr"])
        diff5 = set(parFSR[k]["integral"]) - set(serFSR[k]["integral"])
        print(
            "Different entries in "
            + str(k)
            + ": \tkey: "
            + str(len(diff3))
            + " increment: "
            + str(len(diff4))
            + " integral: "
            + str(len(diff5))
        )
 
 
def LumiFSR(lumi):
 
    runs = []
    files = []
    info = {}
    keys = []
 
    for r in lumi.runNumbers():
        runs.append(r)
 
    for f in lumi.fileIDs():
        files.append(f)
    s = str(lumi)
    sa = s.split("info (key/incr/integral) : ")[-1]
    sa = sa.split("/")[:-1]
 
    key = []
    incr = []
    integral = []
    for rec in sa:
        k, i, t = rec.split()
        key.append(int(k))
        incr.append(int(i))
        integral.append(int(t))
 
    return (runs, files, key, incr, integral)
 
 
def GetFSRdict(filename, queue):
 
    FSR = {
        "TimeSpanFSR": {"earliest": 0, "latest": 0},
        "LumiFSRBeamCrossing": {"key": 0, "incr": 0, "integral": 0},
        "LumiFSRBeam1": {"key": 0, "incr": 0, "integral": 0},
        "LumiFSRBeam2": {"key": 0, "incr": 0, "integral": 0},
        "LumiFSRNoBeam": {"key": 0, "incr": 0, "integral": 0},
        "EventCountFSR": {"input": 0, "output": 0, "statusFlag": 0},
    }
 
    options = (
        "from LumiAlgs.LumiFsrReaderConf import LumiFsrReaderConf as LumiFsrReader; LumiFsrReader().OutputLevel =  INFO; LumiFsrReader().inputFiles = ['%s'] ;"
        % filename
    )
    options += "LumiFsrReader().Persistency='ROOT'; LumiFsrReader().EvtMax = 1; from Configurables import LHCbApp; LHCbApp().Persistency='ROOT';  from Configurables import CondDB, DDDBConf;"
    options += " CondDB().UseLatestTags=['%s']; DDDBConf(DataType='%s');" % (2011, 2011)
    exec(options)
    app = AppMgr()
    app.run(1)
    fsr = app.filerecordsvc()
 
    lst = fsr.getHistoNames()
 
    if lst:
        for l in lst:
 
            ob = fsr.retrieveObject(l)
 
            if "LumiFSR" in l:
 
                assert ob.numberOfObjects() == 1
                k = ob.containedObject(0)
                runs, files, keys, increment, integral = LumiFSR(k)
 
                FSR[l[l.rfind("/") + 1 :]]["runs"] = runs
                FSR[l[l.rfind("/") + 1 :]]["files"] = files
                FSR[l[l.rfind("/") + 1 :]]["key"] = keys
                FSR[l[l.rfind("/") + 1 :]]["incr"] = increment
                FSR[l[l.rfind("/") + 1 :]]["integral"] = integral
 
            if "TimeSpanFSR" in l:
 
                FSR["TimeSpanFSR"]["earliest"] = ob.containedObject(0).earliest()
                FSR["TimeSpanFSR"]["latest"] = ob.containedObject(0).latest()
 
            if "EventCountFSR" in l:
 
                FSR["EventCountFSR"]["input"] = ob.input()
                FSR["EventCountFSR"]["output"] = ob.output()
                FSR["EventCountFSR"]["statusFlag"] = ob.statusFlag()
 
    app.stop()
    app.finalize()
 
    queue.put(FSR)
 
 
def CompareFSR(pout, sout):
 
    parFSR = pout.get()
    serFSR = sout.get()
 
    print("Comparing File Records")
 
    diff1 = set(parFSR["TimeSpanFSR"].iteritems()) - set(
        serFSR["TimeSpanFSR"].iteritems()
    )
    diff2 = set(parFSR["EventCountFSR"].iteritems()) - set(
        serFSR["EventCountFSR"].iteritems()
    )
 
    print(
        "\nDifferent entries in TimeSpanFSR:  \t"
        + str(len(diff1))
        + "\nDifferent entries in EventCountFSR:\t"
        + str(len(diff2))
    )
 
    for k in ["LumiFSRBeamCrossing", "LumiFSRBeam2", "LumiFSRNoBeam"]:
        diff3 = set(parFSR[k]["key"]) - set(serFSR[k]["key"])
        diff4 = set(parFSR[k]["incr"]) - set(serFSR[k]["incr"])
        diff5 = set(parFSR[k]["integral"]) - set(serFSR[k]["integral"])
        print(
            "Different entries in "
            + str(k)
            + ": \tkey: "
            + str(len(diff3))
            + " increment: "
            + str(len(diff4))
            + " integral: "
            + str(len(diff5))
        )
 
    print("\nParallel: \n" + str(parFSR))
    print("\nSerial: \n" + str(serFSR))
 
 
if __name__ == "__main__":
 
    args = sys.argv
    args.pop(0)  # get rid of script name
    if len(args) != 2:
        print(
            "Please supply two arguments : > python loadFile <parallelFile> <serialFile>"
        )
        sys.exit(0)
    else:
        par = "PFN:" + args[0]
        ser = "PFN:" + args[1]
        print("Parallel File to be analysed : %s" % (par))
        print("Serial   File to be analysed : %s" % (ser))
 
    pname = par[4:]  # TFile doesn't need the "PFN:" prefix
    sname = ser[4:]
 
    qacross = Queue()
    pout = Queue()
    sout = Queue()
 
    par = Process(target=Reader, args=(PAR, par, qacross, pout))
    ser = Process(target=Reader, args=(SER, ser, qacross, sout))
    com = Process(target=ComparisonEngine, args=(pout, sout))
 
    # com.start() ; par.start() ; ser.start()
    # ser.join()  ; par.join()  ; com.join()
 
    # CompareTrees( pname, sname )
 
    print("Check File Records")
 
    ser = sys.argv[0]
    par = sys.argv[1]
 
    pout = Queue()
    sout = Queue()
 
    sp = Process(target=GetFSRdict, args=(ser, sout))
    pp = Process(target=GetFSRdict, args=(par, pout))
    cp = Process(target=CompareFSR, args=(pout, sout))
 
    sp.start()
    pp.start()
    cp.start()
    sp.join()
    pp.join()
    cp.join()