[Halld-offline] Reconstruction Launch: 2018-01 ver02

[Alexander Austregesilo]

Dear Collaborators,

This week, we completed the first full reconstruction launch over the 
2018-01 data ('Spring 2018'). In total, it includes 542 runs, which we 
divided into 7 run blocks. Thanks to David Lawrence, the first 6 batches 
were reconstructed at NERSC, with ever-improving performance. Due to 
limits of our NERSC allocation, we reconstructed the last batch on the 
JLab farm, along with the entire post-processing.

The first job was submitted on February 16, while the last one finished 
on June 11, almost 4 months later. 99.8% of the jobs completed 
successfully and produced a total of 83,315 REST files. More information 
on the production can be found on the wiki:

https://halldweb.jlab.org/wiki-private/index.php/Spring_2018_Dataset_Summary#Full_REST_Production

The REST files are can be found on tape. Due to their total size 
(~300TB), they cannot be kept on the cache disk all at the same time:

/cache/halld/RunPeriod-2018-01/recon/ver02/REST/

For realistic background in simulations, we extracted the random 
triggers and converted the signals to hddm:

/cache/halld/RunPeriod-2018-01/recon/ver02/converted_random/

The histograms and trees can be found here:

/cache/halld/RunPeriod-2018-01/recon/ver02/{hists,tree*}

A subfolder with merged histograms and trees is included in each folder.

The results are also visible on the usual monitoring web-pages:

https://halldweb.jlab.org/data_monitoring/Plot_Browser.html
https://halldweb.jlab.org/cgi-bin/data_monitoring/monitoring/runBrowser.py
https://halldweb.jlab.org/cgi-bin/data_monitoring/monitoring/versionBrowser.py 


Best regards,
Alex