An asynchronous data-driven event-building scheme based on ATM switching fabrics

Conference · Mon Jan 31 23:00:00 EST 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6863878

Letheren, M; Christiansen, J; Mandjavidze, I ^[1]; Verhille, H; De Prycker, M; Pauwels, B; Petit, G ^[2]; Wright, S; Lumley, J ^[3]

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1. CERN, Geneva (Switzerland)
2. Alcatel Bell Telephone, Antwerp (Belgium)
3. Hewlett Packard Labs., Bristol (United Kingdom)

The very high data rates expected in experiments at the next generation of high luminosity hadron colliders will be handled by pipelined front-end readout electronics and multiple levels (2 or 3) of triggering. A variety of data acquisition architectures have been proposed for use downstream of the first level trigger. Depending on the architecture, the aggregate bandwidths required for event building are expected to be of the order 10--100 Gbit/s. Here, an Asynchronous Transfer Mode (ATM) packet-switching network technology is proposed as the interconnect for building high-performance, scalable data acquisition architectures. This paper introduces the relevant characteristics of ATM and describes components for the construction of an ATM-based event builder: (1) a multi-path, self-routing, scalable ATM switching fabric, (2) an experimental high performance workstation ATM-interface, and (3) a VMEbus ATM-interface. The requirement for traffic shaping in ATM-based event-builders is discussed and an analysis of the performance of several such schemes is presented.

• OSTI ID: 6863878
• Report Number(s): CONF-930640--
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 41:1Pt1; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
COMMUNICATIONS
DATA ACQUISITION SYSTEMS
DATA TRANSMISSION
DESIGN
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
PERFORMANCE
PULSE CIRCUITS
RADIATION DETECTORS
READOUT SYSTEMS
TRIGGER CIRCUITS