A hardware and software overview of the Delphi contiguity trigger

Journal Article · Mon Apr 01 00:00:00 EST 1991 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.289401· OSTI ID:5112535

Darbo, G ^[1]; Heck, B W; Wildman, J M ^[2]

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1. INFN Genova, Genova (IT)
2. EF Div., CERN, CH-1211 Geneva 23 (CH)

The contiguity processor of the Delphi detector, which is composed of 12 Fastbus modules (one for each TPC sector), is the main second-level track trigger component in the experiment. More than 3000 Mips of processing power are achieved by 4608 processing elements (PE) packed in specially designed ASIC IC's. High interconnectivity among PE's (bidimensional lattice) and a highly parallel algorithm (contiguity mask) allow a three-dimensional vertex reconstruction in less than 5{mu}s. In this paper an overview of the single instruction multiple data (SIMD) architecture, together with the programming language and the interactive debugging tools for the processor, are given.

• OSTI ID: 5112535
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 38:2; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
RADIATION DETECTORS
COMPUTER CODES
COMPUTERS
ALGORITHMS
COMPUTER ARCHITECTURE
FASTBUS SYSTEM
PARALLEL PROCESSING
PROGRAMMING LANGUAGES
THREE-DIMENSIONAL CALCULATIONS
TRIGGER CIRCUITS
ELECTRONIC CIRCUITS
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
PROGRAMMING
PULSE CIRCUITS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation
990200 - Mathematics & Computers