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Exclusive channel data preparation template

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Andrey edited this page Feb 8, 2022 · 9 revisions

Produce custom train for exclusive channel

output: HIPO format with all banks per event but only events with two pions are saved
x6 factor data reduction compared to nSidis
- fall 2018 inbending: custom train (215 Gb) vs nSidis (1.2 Tb)
frequency: once or twice
production timeframe: 1 day maybe few, depending on farm
- 02/04/2022 run: 6 mins
groovy script for (e,pi⁺,pi^-,X) events: gist

example of sbatch script lvl1_epimpip.sbatch

script runs from the same directory where it was submitted

output files are created in the epimpip directory which is expected to be there

#!/bin/bash
#SBATCH --ntasks=1
#SBATCH --job-name=twopionstrain
#SBATCH --partition=production
#SBATCH --account=clas12
#SBATCH --mem-per-cpu=1000

FILES=(/cache/clas12/rg-a/production/recon/fall2018/torus-1/pass1/v1/dst/train/nSidis/*)
cd epimpip
srun ../lvl1_epimpip.groovy ${FILES[$SLURM_ARRAY_TASK_ID]}

submit 174 slurm jobs (one for each of the data files from directory in sbatch script):
```
sbatch -a 0-173 lvl1_epimpip.sbatch
```

Produce ROOT files from custom train

output: ROOT files with only relevant information
data reduction:
- fall 2018 inbending: ROOT files (621 Mb) vs custom train (215 Gb) vs nSidis (1.2 Tb)
frequency: occasionally at the beginning of the analysis, infrequently at the end
production timeframe: few hours

locations:

/work/clas12/kenjo/trains/root/eFPimFPip

only 1 electron (RGA cuts)
only 1 Forward pi+ (RGA cuts)
only 1 Forward pi- (RGA cuts)

/work/clas12/kenjo/trains/root/eFPimFPipP

only 1 electron (RGA cuts)
only 1 Forward pi+ (RGA cuts)
only 1 Forward pi- (RGA cuts)
only 1 proton (RGA cuts): FORWARD and CENTRAL

/work/clas12/kenjo/trains/root/eFKpPimP

only 1 electron (RGA cuts)
only 1 Forward K+ (RGA-ish cuts)
only 1 pi- (RGA cuts): FORWARD and CENTRAL
only 1 proton (RGA cuts): FORWARD and CENTRAL

/work/clas12/kenjo/trains/root/eFKpKmP

only 1 electron (RGA cuts)
only 1 Forward K+ (RGA-ish cuts)
only 1 K- (RGA-ish cuts): FORWARD and CENTRAL
only 1 proton (RGA cuts): FORWARD and CENTRAL

Analysis of ROOT files

Jupyter@jlab, laptop, desktop, ifarm
time to process: minutes/hours