sherpa is hosted by Hepforge, IPPP Durham
close Warning:
  • Error with navigation contributor "BrowserModule"
  • Failed to sync with repository "(default)": instance.__dict__ not accessible in restricted mode; repository information may be out of date. Look in the Trac log for more information including mitigation strategies.
Modify ↓

Opened 14 years ago

Closed 14 years ago

Last modified 11 years ago

#108 closed defect (fixed)

Accuracy/optimization issues in Amegic 32 vs. 64 bit

Reported by: Frank Krauss Owned by: Frank Krauss
Priority: major Milestone:
Component: Unknown Version: 0.trunk
Keywords: Cc:

Description

Sherpa/Amegic shows different numbers of Z functions dependent on platform/compilers, leading to different numerical output.

Attachments (0)

Change History (2)

comment:1 Changed 14 years ago by Stefan Hoeche

Resolution: → fixed
Status: new → closed

This problem is temporarily solved by c16168/16169. Note however, that the cause for it is still not fully understood. In particular, it seems that Amegic's decomposition of massive gauge boson propagators for degenerate momentum configurations causes problems if the spinor gauge is different from k0_n=1 (default). If you decide to investigate this issue further, please reopen the ticket.

comment:2 Changed 11 years ago by Stefan Hoeche

Milestone: rel-1.2.3

Milestone rel-1.2.3 deleted

Modify Ticket

Change Properties
Action
as closed The owner will remain Frank Krauss.

Add Comment

E-mail address and name can be saved in the Preferences.

Attachments ↑ Description ↑
 
Note: See TracTickets for help on using tickets.