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Opened 13 years ago

Closed 13 years ago

Last modified 10 years ago

#192 closed defect (fixed)

Sherpa crashes in partonic event generation

Reported by: Generic User (don't modify these fields) Owned by: support@sherpa-mc.de
Priority: major Milestone:
Component: Unknown Version: 1.3.0
Keywords: Cc: guy.gurari@weizmann.ac.il

Description

Sherpa crashes immediately when trying to generate events for (e+e- => 3 partons). Showering and fragmentation are turned off.

Attachments (3)

Run.dat​ (678 bytes) - added by Generic User (don't modify these fields) 13 years ago.
Run file
initial_run.output​ (12.9 KB) - added by Generic User (don't modify these fields) 13 years ago.
Sherpa output
cmd​ (238 bytes) - added by Generic User (don't modify these fields) 13 years ago.
Command-line arguments

Download all attachments as: .zip

Change History (7)

Changed 13 years ago by Generic User (don't modify these fields)

Attachment: Run.dat​ added

Run file

Changed 13 years ago by Generic User (don't modify these fields)

Attachment: initial_run.output​ added

Sherpa output

Changed 13 years ago by Generic User (don't modify these fields)

Attachment: cmd​ added

Command-line arguments

comment:1 Changed 13 years ago by Generic User (don't modify these fields)

As can be seen in the log, the problem is in the METS scale setter. The code line, referred to in the stack trace, calls a function on a Shower() object, which is null (I guess) when showering is turned off.

Changing the scale setter (e.g. SCALES = QCD) avoids the problem.

comment:2 Changed 13 years ago by Stefan Hoeche

Resolution: → fixed
Status: new → closed

This bug has been fixed on trunk r18021. Note, however, that the default scale choice in Sherpa depends on the parton shower, see 'METS' in ​http://projects.hepforge.org/sherpa/doc/SHERPA-MC-1.3.0.html#SCALES. Version 1.4.0, when used with the above setup, will therefore still abort the integration.

comment:3 Changed 12 years ago by Frank Siegert

Milestone: → rel-old

comment:4 Changed 10 years ago by Stefan Hoeche

Milestone: old

Milestone old deleted

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as closed The owner will remain support@sherpa-mc.de.

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