pythia parallelization step crashes

Bug #1798622 reported by Melissa on 2018-10-18
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MadGraph5_aMC@NLO
Undecided
Valentin Hirschi

Bug Description

Dear developers,

A few seconds after the events have been split in the Pythia8 jobs (for CKKW merging), Madgraph crashes due to a segmentation fault. See the included bug report. No output file is created.

Many thanks for your help,
Melissa

Part of output:

INFO: Storing parton level results
INFO: End Parton
reweight -from_cards
decay_events -from_cards
INFO: Running Pythia8 [arXiv:1410.3012]
Splitting .lhe event file for PY8 parallelization...
Submitting Pythia8 jobs...
Pythia8 shower jobs: 0 Idle, 40 Running, 0 Done [4 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/Events/run_02/PY8_parallelization/run_PY8.sh: line 2: 30828 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
WARNING: program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/Events/run_02/PY8_parallelization/run_PY8.sh 26 launch ends with non zero status: 139. Stop all computation
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/Events/run_02/PY8_parallelization/run_PY8.sh: line 2: 30557 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 39 Running, 1 Done [18 seconds]
.....

.....
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/Events/run_02/PY8_parallelization/run_PY8.sh: line 2: 30873 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 0 Running, 40 Done [21 seconds]
Command "generate_events run_02" interrupted with error:
Exception : program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/Events/run_02/PY8_parallelization/run_PY8.sh 26 launch ends with non zero status: 139. Stop all computation
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in '/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/Wene_jets/run_02_tag_1_debug.log'.
Please attach this file to your report.

Melissa (mcbeekveld) wrote :
Changed in mg5amcnlo:
assignee: nobody → Valentin Hirschi (valentin-hirschi)
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