Helpful tips for LArsoft¶
This is a combine list of things you might find useful when using LArsoft. The examples are taken from other Redmine LArsoft sites:
for more please see them. Please add to the list as well!
Updating LArsoft version whilst keeping the old compilation¶
This is useful for when you want concurrent prof/debug builds using the same source code or you want to update your LArsoft version. You can keep you old build with the version of LArsoft you were running and test if updating causes some error to appear. From a new shell setup the LArsoft version you want e.g. if you wanted v06_59_00:
setup larsoft v06_59_00 -q e14:prof cd v06_59_00.prof mrb newDev -T v06_59_00.prof -f
-T tells mrb what directory to put the localproducts and build directory in.
-f tells mrb to use the src directory that already exists.
Performing a Clean Build¶
The is stolen from site 1. Setup your code.
cd $MRB_BUILDDIR mrb z mrbsetenv mrb i -j4
The z is short for zapBuild and it removes all the local files out of the local repository.
Removing a package from a work area .¶
This is stolen from site 1. Setup your code.
cd $MRB_SOURCE rm -rf <repo-name> mrb uc
Looking at the builds available¶
Do the following command to see what qualifiers and versions of sbndcode are available.
ups list -aK+ sbndcode
Add a new package to your LArsoft version.¶
Setup your code. Find the version of the package you are downloading your require via the LArsoft release website: https://cdcvs.fnal.gov/redmine/projects/larsoft/wiki/LArSoft_release_list. For example if you wanted the package that corresponded to v06_59_00 then:
cd $MRB_SOURCE mrb g -t v06_59_00 package mrb z mrb i -j4 mrbslp
Useful Info dumpers¶
I can never find the correct one to run so I put them here as well.
More info can be found here
eventdump.fcl - Dumps all the data products made in the file onto the screen (e.g. car -c eventdump.fcl myartfile.root)
fhicl-dump - Dumps all the fcl parameters used by the fcl on the screen (e.g. fhicl-dump myfcl.fcl)
config_dumper - Dumps all the fcl parameters used to create the root file (e.g. config_dumper myartroot.root)
count_events - For when you need to know how many you have filtered quickly
count_events `while read p; do echo "$p"; done < myfiles.list`