EVENT BUILDING IN FUTURE DAQ ARCHITECTURES USING ATM NETWORKS

DAVID C. DOUGHTY, DAVID GAME, STEPHANIE HOLT, LISA MITCHELL, PAUL BANTA, GRAHAM HEYES, THEODORE PUTNAM, W. A. WATSON
1996 Computing in High Energy Physics '95  
ATM s w itches and links have been investigated for use as the event building fabric for future data acquisition architectures and will be used in CEBAF' s CLAS detector. To avoid contention problems and cell-loss, a linked dual token passing a Igorithm has been devised, with two different types of tokens being passed through the sw itch, This algorithm leads to a ' barrel shifter' type of parallel d ata transfer. We describe the hardware architecture and the dual token algorithm, and present
more » ... ithm, and present simulation and test re suits.
doi:10.1142/9789814447188_0075 fatcat:kjp3ujm5szfqrh5ijolqddnowe