4 papers
HL-LHC Computing Review: Common Tools and Community Software
HEP Software Foundation, :, Thea Aarrestad +107
Common and community software packages, such as ROOT, Geant4 and event generators have been a key part of the LHC's success so far and continued development and optimisation will b…
ROOT I/O compression improvements for HEP analysis
Oksana Shadura, Brian Paul Bockelman, Philippe Canal +2
We overview recent changes in the ROOT I/O system, increasing performance and enhancing it and improving its interaction with other data analysis ecosystems. Both the newly introdu…
Evolution of the ROOT Tree I/O
Jakob Blomer, Philippe Canal, Axel Naumann +1
The ROOT TTree data format encodes hundreds of petabytes of High Energy and Nuclear Physics events. Its columnar layout drives rapid analyses, as only those parts ("branches") that…
Increasing Parallelism in the ROOT I/O Subsystem
Guilherme Amadio, Brian Bockelman, Philippe Canal +3
When processing large amounts of data, the rate at which reading and writing can take place is a critical factor. High energy physics data processing relying on ROOT is no exceptio…