calculation fails for certain cuts
Hi
I am computing p p > e+ ve mu- mu+ [QCD]
and I have a cut on the pT of the sum of mu+ and mu- four-vectors.
For low values of this cut, e.g. pT>200 GeV, I get results.
However if I set this cut to above 400 GeV there are errors as in the following:
INFO: Idle: 16, Running: 16, Completed: 16 [ 3m 0s ]
WARNING: program /afs/cern.
INFO: Idle: 16, Running: 15, Completed: 17 [ 3m 2s ]
INFO: Idle: 16, Running: 14, Completed: 18 [ 3m 2s ]
INFO: Idle: 16, Running: 13, Completed: 19 [ 3m 2s ]
INFO: Idle: 16, Running: 12, Completed: 20 [ 3m 2s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 11, Completed: 21 [ 3m 2s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 10, Completed: 22 [ 3m 2s ]
INFO: Idle: 16, Running: 9, Completed: 23 [ 3m 2s ]
INFO: Idle: 16, Running: 8, Completed: 24 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 7, Completed: 25 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 6, Completed: 26 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 5, Completed: 27 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 4, Completed: 28 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 3, Completed: 29 [ 3m 3s ]
/afs/cern.
date: write error: Broken pipe
INFO: Idle: 16, Running: 2, Completed: 30 [ 3m 3s ]
INFO: Idle: 16, Running: 0, Completed: 32 [ 3m 3s ]
I tried to make 100K events instead of 10K hoping that the phase-space of the intial grids were sampled more extensively in the tails, but it did not help.
Any idea what could go wrong here?
Thanks for your help.
Best,
Roberto
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- Rikkert Frederix Edit question
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- Rikkert Frederix
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