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LCLS-II DAQ

working session Jan 11, 2017

Quickstart instructions:

This code is an extension of the OTS-DAQ project and requires it to function. To setup OTS-DAQ use the instructions listed here for installing the core OTS-DAQ packages. This must be done first! Once the OTSDAQ core dependencies are set up, the CMS Outer Tracker interface code can be included.

If you are one of the project managers and plan on making modifications to the code, you can checkout the repository doing the following assuming you have valid kerberos credentials,

cd $MRB_SOURCE # this is the 'srcs' directory that will be set in the course of setting up OTS-DAQ
mrb gitCheckout -d otsdaq_lcls2 ssh://p-lcls2@cdcvs.fnal.gov/cvs/projects/lcls2
mrb gitCheckout -d otsdaq_components ssh://p-components@cdcvs.fnal.gov/cvs/projects/components

Otherwise, you can just clone the directory using the http sever,

cd $MRB_SOURCE # this is the srcs directory that will be set in the course of setting up OTS-DAQ
mrb gitCheckout -d otsdaq_lcls2 http://cdcvs.fnal.gov/projects/lcls2
mrb gitCheckout -d otsdaq_components http://cdcvs.fnal.gov/projects/components

Alternatively, if you do not have mrb set up, you can check out the code using git directly,

git clone http://cdcvs.fnal.gov/projects/lcls2 otsdaq_lcls2
git clone http://cdcvs.fnal.gov/projects/components otsdaq_components

If you don't checkout using ssh, you will not be able to push your changes to redmine.

Once the package is checked out or if you are starting a new session, source the environment,

export OTS_DIR=my/mrb/working/directory
source /path/to/products/area/setup # e.g. /data/ups/setup
cd ${OTS_DIR} # this is where localProducts_otsdaq_* and srcs resides
setup mrb
setup git
source local*/setup
source mrbSetEnv
export USER_DATA=${OTS_DIR}/srcs/otsdaq_lcls2/Data
export ARTDAQ_DATABASE_URI=filesystemdb://${OTS_DIR}/srcs/otsdaq_lcls2/databases/filesystemdb/test_db

Structure

Ideally, everything that is needed for a user to run OTSDAQ will be contained in the otsdaq_lcls2 directory and the code in otsdaq, otsdaq_utilities, and otsdaq_components will not need to be touched. If there is a situation where you wish to modify part of the core code, it is advised to put in a request with one of the maintainers (Lorenzo, Ryan, or Eric).

Below is a summary of some of the parts that will need to be modified in order to set up communication with the experimental device.

Interface

The FEInterface class tells OTSDAQ how to communicate with front end electronics and is found in

otsdaq_lcls2/otsdaq-lcls2/FEInterfaces/
. All of the methods defined in the interface source can be called from the OTSDAQ web interface...

Configuration

Configuration files are kept in

otsdaq_lcls2/databases
.

Data management

...

Useful links

Wiki syntax Here

Instructions for setting up main version of OTSDAQ using MRB: Off-the-Shelf DAQ