MadGraph5_aMC@NLO

"OSError: [Errno 24] Too many open files" -- in a scan

Asked by Arnab Roy on 2024-05-21

Hi,
I am having a similar issue during a scan.
I am trying to generate p p > vl vl~ j NP<=1 with the SMEFTsim_general_MwScheme_UFO. The running script is like:

launch monojet1
set lambdasmeft 1000.0 # scale -GeV
set cdWRe12 scan:[-1,-0.5,0,0.5,1]
set clq1Re2212 scan:[-1,-0.5,0,0.5,1]
set nevents 10000
0
launch monojet1 -i

The error part of the output is:

INFO: Combining Events
[Errno 24] Too many open files: '/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/monojet1_scan_25_tag_1_debug.log'
Traceback (most recent call last):
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/common_run_interface.py", line 7795, in new_fct
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/madevent_interface.py", line 2621, in run_generate_events
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1575, in exec_cmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1495, in onecmd_orig
ln: failed to create symbolic link 'ME5_debug' File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/madevent_interface.py", line 3782, in do_combine_events
: File exists
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/lhe_parser.py", line 957, in add
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/lhe_parser.py", line 230, in __init__
  File "/home/user1/anaconda3/lib/python3.11/gzip.py", line 174, in __init__
OSError: [Errno 24] Too many open files: '/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/Events/monojet1_scan_25/partials21.lhe.gz'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1546, in onecmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1495, in onecmd_orig
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1181, in do_import
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1694, in import_command_file
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1575, in exec_cmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1495, in onecmd_orig
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/madevent_interface.py", line 2761, in do_launch
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/madevent_interface.py", line 2402, in do_generate_events
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/common_run_interface.py", line 7774, in new_fct
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/common_run_interface.py", line 7745, in __exit__
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/check_param_card.py", line 559, in write
OSError: [Errno 24] Too many open files: '/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/Cards/param_card.dat'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/./bin/madevent", line 189, in <module>
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1584, in run_cmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1573, in exec_cmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1548, in onecmd
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1524, in error_handling
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/madevent_interface.py", line 311, in nice_error_handling
  File "/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/bin/internal/extended_cmd.py", line 1318, in nice_error_handling
OSError: [Errno 24] Too many open files: '/home/user1/work/MG5_aMC_v3.5.4/MG5_aMC_v3_5_4/monojet1/monojet1_scan_25_tag_1_debug.log'