Bug #1202
Unable to simulate >40k events
0%
Description
Hi Chris,
I can't simulate with approx. more than 40,000 muon events, getting the error shown below:
(MAUS release version 0.4.1) verbose set to debug.
INPUT: Setting up input
PIPELINE: Get event, TRANSFORM, MERGE, OUTPUT, repeat
HINT: MAUS will process 1 event only at first...
MERGE: Setting up merger
TRANSFORM: Setting up transformer
Written 1 event(s) to file.
Written 1 event(s) to file.
Opening TFile Sim_0mm_1MeVc_50000mu_1e-08nsec_IV_Fe_m1__m0.4.1_MuSc__.root
Opening TFile using existing tree Spill
terminate called after throwing an instance of 'std::bad_alloc'
what(): St9bad_alloc
and no output is given. All the scripts work fine for say 30k events. Any ideas? Cards attached.
Thanks,
Tim
Files
Updated by Rogers, Chris over 8 years ago
- Priority changed from Urgent to Normal
Sorry for the delay in replying, my brain was stuck in other stuff. So the problem is memory usage I believe. You have 50k particles in a single spill, MAUS buffers data spill-by-spill so it holds all the data for a particular spill in memory at a given time. The problem is that data associated with 50k particles actually have quite a large memory footprint. So you should split the spill up into several smaller spills to make this work... sorry about that.
Updated by Rogers, Chris over 8 years ago
- Category set to Simulation
- Target version set to Future MAUS release
Updated by Carlisle, Timothy over 8 years ago
Ahhh ok sorry still have my G4MICE hat on I'm afraid!
Updated by Rogers, Chris over 8 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100
No problem - I'll close the issue if thats okay.
Updated by Rogers, Chris over 8 years ago
- Status changed from Closed to Rejected
- Target version changed from Future MAUS release to MAUS-v0.4.3
- % Done changed from 100 to 0