Parallel Python

Hello,

I once used PP successfully, but in my latest program, as far as I can see, the jobs are running sequentially, although I didn't change anything consciously.

The structure looks like this:

Code:

def outerfunction:

def job(arg)

print "Job started."
do heavy job
print "Job finished."

ppservers = ()
job_server = pp.Server(cores, ppservers=ppservers)
jobdict = {}

print "Starting pp with", job_server.get_ncpus(), "workers"
arglist = [arg1, ..., argn]

for i in range(0,26)
jobdict[i] = job_server.submit(job, (arglist[i]))

for key in jobdict: # Reading and collecting job results
result = jobdict[key]()

But the output in the terminal looks like this:

Starting pp with 10 workers
      Cores for clustering: 10
      Number of high-impact transcripts: 25
      job submitted
      4 % of high-traffic reference segments processed.
      job submitted
      job submitted
      12 % of high-traffic reference segments processed.
      job submitted
      job submitted
      job submitted
      24 % of high-traffic reference segments processed.
      job submitted
      job submitted
      32 % of high-traffic reference segments processed.
      job submitted
      job submitted
      job submitted
      44 % of high-traffic reference segments processed.
      job submitted
      job submitted
      52 % of high-traffic reference segments processed.
      job submitted
      job submitted
      job submitted
      64 % of high-traffic reference segments processed.
      job submitted
      job submitted
      72 % of high-traffic reference segments processed.
      job submitted
      job submitted
      job submitted
      84 % of high-traffic reference segments processed.
      job submitted
      job submitted
      92 % of high-traffic reference segments processed.
      job submitted
      job submitted
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.
      Job started.
      Job finished.

What am I doing wrong? 0_o

Best regards

	Author	Topic: Jobs seem to work sequentially, not simultaneously (Read 1531 times)
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