As part of the ESPRIT GP-MIMD project a network of 54 prototype T9000 Transputers has been integrated into the data acquisition system of the CPLEAR experiment at CERN to perform on-line event filtering. Initial experience with T9000s and their interconnection using C104 packet routing chips is presented together with performance measurements and prospects for the future.
Abstract.The work reported involves the construction of a large modular testbed using IEEE 1355 DS link technology. A thousand nodes will be interconnected by a s w i t c hing fabric based on the STC104 packet switch. The system has been designed and constructed in a modular way in order to allow a v ariety of di erent network topologies to be investigated. Network throughput and latency have been studied for di erent n e t work topologies under various tra c conditions.
The C104 is an asynchronous 32-way dynamic packet routing chip. It has a 264 Mbytes/s bi-directional bandwidth and a 1 sec switching latency. It oers high-density costeective commodity communications, which allow large switching networks to be constructed. Results are presented on the performance of this switching technology within the context of future High Energy Physics level II and level III trigger data trac patterns.
Within the framework of the MACRAMÉ Esprit project a large switching network is being constructed using IEEE 1355 DS link technology. The final system will allow the systematic study of the performance of a 1024 node testbed using a variety of network topologies and traffic patterns, including those met in High Energy Physics trigger and data acquisition applications. The status of the project and some preliminary results are presented.
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