Coffea Users Meeting

Monday 7 Dec 2020, 11:00 → 12:00 America/Chicago

WH13SW (The Disappearance Room) (FNAL)

Lindsey Gray (Fermi National Accelerator Lab. (US)), Matteo Cremonesi (Fermi National Accelerator Lab. (US))

We're using zoom for the foreseeable future:

https://fnal.zoom.us/j/4440725898?pwd=VkFScTlGU0l0cEJaaUROVmxJYk9mUT09

We have a few items we didn't have the time to discuss during the previous meeting:

 

1) The issue described in: https://mattermost.web.cern.ch/lpcrun2discuss/pl/bnchfpnhkiy1xcyza9gkcwf1zc. It discusses the option of producing a jagged array with the full event structure as the output of a coffea processor, to run multiple computation over the same set of selected events.

 

2) The issue described in: https://github.com/CoffeaTeam/coffea/issues/369. It discusses the option of making processing file-dependent in efficient manner, based on information store in the file itself or passed as metadata.

 

In addition, we will discuss a new item:

 

3) An increase in memory when upgrading to awkward 1 0.4.4, as described here: https://mattermost.web.cern.ch/lpcrun2discuss/pl/zoxrqyco53djxeqsywx789gsze