Dear developers,
Whenever I try to shower ttbarW, ttbarZ, tb~ or t~b events, I run into a segementation fault error at the shower stage.
The error looks like this:
Splitting .lhe event file for PY8 parallelization...
Submitting Pythia8 jobs...
Pythia8 shower jobs: 1 Idle, 39 Running, 0 Done [23 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164098 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
WARNING: program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh 19 launch ends with non zero status: 139. Stop all computation
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163865 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 39 Running, 1 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163875 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 38 Running, 2 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163903 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 37 Running, 3 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163910 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 36 Running, 4 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163913 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 35 Running, 5 Done [33 seconds]
Pythia8 shower jobs: 0 Idle, 34 Running, 6 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163950 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 33 Running, 7 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163989 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 32 Running, 8 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163946 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 31 Running, 9 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164031 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163960 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 30 Running, 10 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163973 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 29 Running, 11 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164159 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163979 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 27 Running, 13 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164013 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 26 Running, 14 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164058 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 25 Running, 15 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164082 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 24 Running, 16 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164084 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 23 Running, 17 Done [34 seconds]
Pythia8 shower jobs: 0 Idle, 22 Running, 18 Done [34 seconds]
Pythia8 shower jobs: 0 Idle, 21 Running, 19 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164132 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164099 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 19 Running, 21 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164125 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 18 Running, 22 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164164 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 17 Running, 23 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 16 Running, 24 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164204 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 15 Running, 25 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 14 Running, 26 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164250 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 13 Running, 27 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164266 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 12 Running, 28 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164263 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 11 Running, 29 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164264 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 10 Running, 30 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164273 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 9 Running, 31 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164291 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 8 Running, 32 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164316 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 7 Running, 33 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164323 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164327 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 5 Running, 35 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164329 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 4 Running, 36 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164335 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 3 Running, 37 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164015 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 1 Running, 39 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 0 Running, 40 Done [35 seconds]
Command "generate_events run_01" interrupted with error:
Exception : program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh 19 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/wplustop_schan2/run_01_tag_1_debug.log'.
Please attach this file to your report.
INFO: storing files of previous run
INFO: Done
INFO:
quit
I only get this error with these events. I have tried to use a single machine setup (in the config file), but same thing happens. Only thing that seems to help is to turn of the matching completely and not to generate additional jets in the matrix element.
I have seen that this is a know bug, and the fix was to turn of the multicore or cluster mode and use single machine instead. For me this did not work, I had to turn off the matching.
I am not sure whether I should contact the pythia authors for this, as the issue seems to be on their side. I have included two debug files, one for tb production and one for ttbarZ.
Cheers and thank you,
Melissa