The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Workshop: The 12th Annual International Workshop on Innovating the Network for Data-Intensive Science (INDIS)
Authors: Bjoern Sagstad and Nishanth Shyamkumar (Illinois Institute of Technology); Sophia Chen (Hinsdale South High School); Wesley Robert Ketchum (Fermilab); Roland Sipos (CERN); James Kowalkowski (Fermilab); Michael Wang (Fermi National Laboratory); and Nik Sultana (Illinois Institute of Technology, SCinet)
Abstract: This paper describes a novel application and evaluation of programmable networking in High-Energy Physics (HEP): a complete parser for the custom packet format used by Fermilab’s DUNE experiment. Notably, this parser is implemented on a Tofino programmable network switch and evaluated on the FABRIC testbed by using network traffic generated by the ICEBERG DUNE prototype. The parsed network traffic consists of Jumbo Ethernet frames that contain digitizations of sensor readings from ICEBERG’s detector.
This work is an early investigation into providing in-network processing support for HEP experiments. The paper describes DUNE’s custom packet format, the challenges encountered when implementing a parser for that format, and an exploration of the techniques that are needed to overcome those challenges. We identify performance bottlenecks and discuss directions for future research.
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