Results from a data acquisition system prototype project using a switch-based event builder

Abstract

This report was prepared as an account of work sponsored by an agency of the United States Gouernment.

Performance analysis of a switch-type event builder with global traffic control system

“…Another way to avoid congestion of coherent traffic is to establish a global traffic control. A circuit switch was applied to an event builder at Fermilab [1,2]. The data traffic is controlled by a global traffic signal.…”

A 40 GByte/s read-out system for GEM

“…A general-purpose switch is self-synchronizing [5]. On the first set of events, all sources may attempt to send a packet to the same destination.…”