Python Multiprocessing - Object has no attribute
I'm trying to use multiprocessing on my script. But it doesn't work. what am I doing wrong? I searched too much but I didn't find the solution. Can you help me guys?
It seems HistogramMerger working with multiprocessing. I saw some print-out when I run the script but I don't get any result file which I normally getting with for loop.
I'm getting this error message:
AttributeError: 'module' object has no attribute 'histogramAdd'
ps: This histogram merger script merging multiple files to one single file. And, I'm trying to run this script faster than normal. If you know better solution, please let me know.
without multiprocessing (working)
from histogram_merger import HistogramMerger
var1=697
var2=722
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var1)+".root") as hm:
for i in xrange(var1,var2+1):
print "Run Number : " +str(i)
hm.addHistogramFile("../results/run"+str(i)+"/run"+str(i)+"_histo.root")
with MultiProcessing
from histogram_merger import HistogramMerger
from multiprocessing import Pool
var1=697
var2=722
##################################################
arrayOfNumbers = [xx for xx in range(var1, var2+1)]
print(arrayOfNumbers)
pool = Pool(8)
def histogramAdd(run):
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(histogramAdd, arrayOfNumbers)
pool.join()
python multiprocessing python-multiprocessing
asked Nov 23 '18 at 16:26
AliAli
61
add a comment |
I'm trying to use multiprocessing on my script. But it doesn't work. what am I doing wrong? I searched too much but I didn't find the solution. Can you help me guys?
It seems HistogramMerger working with multiprocessing. I saw some print-out when I run the script but I don't get any result file which I normally getting with for loop.
I'm getting this error message:
AttributeError: 'module' object has no attribute 'histogramAdd'
ps: This histogram merger script merging multiple files to one single file. And, I'm trying to run this script faster than normal. If you know better solution, please let me know.
without multiprocessing (working)
from histogram_merger import HistogramMerger
var1=697
var2=722
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var1)+".root") as hm:
for i in xrange(var1,var2+1):
print "Run Number : " +str(i)
hm.addHistogramFile("../results/run"+str(i)+"/run"+str(i)+"_histo.root")
with MultiProcessing
from histogram_merger import HistogramMerger
from multiprocessing import Pool
var1=697
var2=722
##################################################
arrayOfNumbers = [xx for xx in range(var1, var2+1)]
print(arrayOfNumbers)
pool = Pool(8)
def histogramAdd(run):
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(histogramAdd, arrayOfNumbers)
pool.join()
python multiprocessing python-multiprocessing
asked Nov 23 '18 at 16:26
AliAli
61
add a comment |
I'm trying to use multiprocessing on my script. But it doesn't work. what am I doing wrong? I searched too much but I didn't find the solution. Can you help me guys?
It seems HistogramMerger working with multiprocessing. I saw some print-out when I run the script but I don't get any result file which I normally getting with for loop.
I'm getting this error message:
AttributeError: 'module' object has no attribute 'histogramAdd'
ps: This histogram merger script merging multiple files to one single file. And, I'm trying to run this script faster than normal. If you know better solution, please let me know.
without multiprocessing (working)
from histogram_merger import HistogramMerger
var1=697
var2=722
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var1)+".root") as hm:
for i in xrange(var1,var2+1):
print "Run Number : " +str(i)
hm.addHistogramFile("../results/run"+str(i)+"/run"+str(i)+"_histo.root")
with MultiProcessing
from histogram_merger import HistogramMerger
from multiprocessing import Pool
var1=697
var2=722
##################################################
arrayOfNumbers = [xx for xx in range(var1, var2+1)]
print(arrayOfNumbers)
pool = Pool(8)
def histogramAdd(run):
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(histogramAdd, arrayOfNumbers)
pool.join()
python multiprocessing python-multiprocessing
asked Nov 23 '18 at 16:26
AliAli
61
I'm trying to use multiprocessing on my script. But it doesn't work. what am I doing wrong? I searched too much but I didn't find the solution. Can you help me guys?
It seems HistogramMerger working with multiprocessing. I saw some print-out when I run the script but I don't get any result file which I normally getting with for loop.
I'm getting this error message:
AttributeError: 'module' object has no attribute 'histogramAdd'
ps: This histogram merger script merging multiple files to one single file. And, I'm trying to run this script faster than normal. If you know better solution, please let me know.
without multiprocessing (working)
from histogram_merger import HistogramMerger
var1=697
var2=722
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var1)+".root") as hm:
for i in xrange(var1,var2+1):
print "Run Number : " +str(i)
hm.addHistogramFile("../results/run"+str(i)+"/run"+str(i)+"_histo.root")
with MultiProcessing
from histogram_merger import HistogramMerger
from multiprocessing import Pool
var1=697
var2=722
##################################################
arrayOfNumbers = [xx for xx in range(var1, var2+1)]
print(arrayOfNumbers)
pool = Pool(8)
def histogramAdd(run):
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(histogramAdd, arrayOfNumbers)
pool.join()
python multiprocessing python-multiprocessing
python multiprocessing python-multiprocessing
asked Nov 23 '18 at 16:26
AliAli
61
asked Nov 23 '18 at 16:26
AliAli
61
asked Nov 23 '18 at 16:26
AliAli
61
asked Nov 23 '18 at 16:26
AliAli
61
asked Nov 23 '18 at 16:26
AliAli
61
61
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The error message is odd. hm is not in scope within the function histogramAdd. I would expect something like NameError: name 'hm' is not defined. Perhaps there is some hm import you are not showing.
Regardless, you need to pass the object to the function. You can use functools.partial for this. E.g.
from functools import partial
# ...
def histogramAdd(run, hm): # <- extra parameter!
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(partial(histogramAdd, hm), arrayOfNumbers)
pool.join()
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
The error message is odd. hm is not in scope within the function histogramAdd. I would expect something like NameError: name 'hm' is not defined. Perhaps there is some hm import you are not showing.
Regardless, you need to pass the object to the function. You can use functools.partial for this. E.g.
from functools import partial
# ...
def histogramAdd(run, hm): # <- extra parameter!
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(partial(histogramAdd, hm), arrayOfNumbers)
pool.join()
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
add a comment |
The error message is odd. hm is not in scope within the function histogramAdd. I would expect something like NameError: name 'hm' is not defined. Perhaps there is some hm import you are not showing.
Regardless, you need to pass the object to the function. You can use functools.partial for this. E.g.
from functools import partial
# ...
def histogramAdd(run, hm): # <- extra parameter!
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(partial(histogramAdd, hm), arrayOfNumbers)
pool.join()
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
add a comment |
The error message is odd. hm is not in scope within the function histogramAdd. I would expect something like NameError: name 'hm' is not defined. Perhaps there is some hm import you are not showing.
Regardless, you need to pass the object to the function. You can use functools.partial for this. E.g.
from functools import partial
# ...
def histogramAdd(run, hm): # <- extra parameter!
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(partial(histogramAdd, hm), arrayOfNumbers)
pool.join()
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
The error message is odd. hm is not in scope within the function histogramAdd. I would expect something like NameError: name 'hm' is not defined. Perhaps there is some hm import you are not showing.
Regardless, you need to pass the object to the function. You can use functools.partial for this. E.g.
from functools import partial
# ...
def histogramAdd(run, hm): # <- extra parameter!
print("Run Number : "+str(run))
hm.addHistogramFile("../results/run"+str(run)+"/run"+str(run)+"_histo.root")
if __name__ == '__main__':
with HistogramMerger("results/resMergedHistograms_"+str(var1)+"_"+str(var2)+".root") as hm:
pool.map(partial(histogramAdd, hm), arrayOfNumbers)
pool.join()
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
answered Nov 23 '18 at 16:40
JETMJETM
1,93741627
1,93741627
add a comment |
add a comment |
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