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Analysis Getting Started » History » Version 11

Sean Jeffas, 05/11/2023 10:30 AM

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h1. Analysis Getting Started
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These instructions are specific to the analyzer and SBS-offline installations existing under /work/halla/sbs, maintained by Andrew Puckett.
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{{toc}}
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h1. How to Reach the SBS Work Directory
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* Log in to the JLab ifarm
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** https://scicomp.jlab.org/docs/getting_started
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* The SBS work directory is located at /work/halla/sbs
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** Created a directory here with @mkdir username@
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** If you do not have permission contact Ole Hansen (ole@jlab.org) and ask to be added to the SBS user group.
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h1. Setting up Environments
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* If you want to set up your own personal analyzer you can look here https://github.com/JeffersonLab/analyzer
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h1. Getting Files from Cache
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* All raw EVIO files from GMn are on tape at @/mss/halla/sbs@
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* Cached EVIO files are located at @/cache/halla/sbs@
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* To write files from tape to cache see documentation here, https://scicomp.jlab.org/docs/node/586
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** For example, to get all EVIO splits from run runnumber in GMn to cache execute @jcache get /mss/halla/sbs/raw/*runnumber*@
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h1. Setting up the SBS Replay
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* If you do not plan to make changes to the replay code you can simply use the version located at @/work/halla/sbs/SBS_OFFLINE@ and @/work/halla/sbs/SBS_REPLAY@
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* The SBS analysis is located at https://github.com/JeffersonLab/SBS-offline and https://github.com/JeffersonLab/SBS-replay
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** You can copy the github versions to your own work directory, if you plan to make your own changes to the analysis
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h2. SBS Installation
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* Follow the README instructions on https://github.com/JeffersonLab/SBS-offline to install SBS-offline.
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* After installing, there should be a directory, @install/run_replay_here@.
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* Inside there should be one file named @.rootrc@ (it is a hidden file).
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** Wherever you run the replay, this file must be there to load the SBS-offline libraries. Either run your replays here, or move the @.rootrc@ file to the new destination.
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h2. SBS Replay Environments
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* The following lines should be used in a script to define where the data, and output files should be located
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<pre>
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setenv SBS_REPLAY path-to-your-replay/SBS-replay
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setenv DB_DIR $SBS_REPLAY/DB
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setenv DATA_DIR /cache/mss/halla/sbs/raw
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setenv OUT_DIR path-to-your-volatile/rootfiles
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setenv LOG_DIR path-to-your-volatile/logs
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setenv ANALYZER_CONFIGPATH $SBS_REPLAY/replay
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</code></pre>
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* DATA_DIR tells the replay where the EVIO files are.
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* OUT_DIR tells the replay where to put the output ROOT files.