Online analysis

In the process of editing and updating this page. Please contact Juliette Mammei crowder@jlab.org with questions or suggestions.

PREX Main<< Information for Shift Takers << Shift Leader

For Shift Workers

• Ask an expert!

For Experts

• Run Info
• PREX I Final Analysis
• JAPAN Analysis Module Portal

Online JAPAN

To run an online instance of the JAPAN decoder execute

gojapan
./build/qwparity --config prex.conf --add-config online_apar.conf

This will automatically grab the current CODA run (it attaches to the 64 bit ET system and analyzes data on the fly) Looking at live plots can be done with PANGUIN in live mode as well, as long as your PANGUIN macro has the line

watchfile

included in it. A live PANGUIN session will update the plots on a few second cycle, but it can take some time to loop over all of the data. It is possible to trim down the ROOT file output size, which is especially useful in these circumstances. See here for more information.