1. Condor Application in AMANDA-II for Paolo Desiati UW - Physics Department

2. AMANDA-II Experiment Located at the Geographic South Pole
m depth
200 m diameter / 500 m tall
~700 optical sensors
Detects rare subatomic particles called neutrinos ()
Visible only when they interact in the Earth ()
Huge background from atmospheric events
Contamination by down-going  particles
They are not produced by neutrinos
They are 100,000 more than up-going events
The event reconstruction tries to remove background
Need to simulate as much background as possible

3. AMANDA-II simulation chain
CORSIKA (atmospheric shower events)
FORTRAN
Generates 100,000 events (x100 oversampled)
MMC (event propagation through the ice)
JAVA
Generates cross section tables once, then very fast
AMASIM (detector response simulation)
FORTRAN/C
Reads geometry/electric/hardware steering info
Reads photon-tables to simulate sensor response
500 MB phototables
Reconstruction (event reconstruction as in real data)
C libraries
Many programs used in a pipe structure

4. Simulation Times Average execution time per file is ~ 3 hours
AMASIM detector simulation takes ~ 64 %
Our simulation need further optimization in the next future
However the goal would be to generate ~ 1 year worth number of background events

5. Condor for AMANDA-II Used Time Evicted Time Total Time 151,750 hours
Thanks to Erik Paulson set of scripts running the simulation chain
Vanilla universe, no checkpoint
Up to 200 CPU can be used
Could generate ~ 1 day livetime / CPU-day
In 70 days 151,750 hours used in an average of ~120 CPU
Effective generated ~ 0.4 days livetime / CPU-day
Generated ~30 days livetime from February 6th
We estimate we can increase the simulation speed by at least 50%
IceCube (the future km3 scale detector) will have new and fast simulation software
Used Time
Evicted Time
Total Time
151,750 hours
58,150 hours
209,900 hours