Commodity multi-processor systems in the ATLAS level-2 trigger
Low cost SMP (Symmetric Multi-Processor) systems provide substantial CPU and I/O capacity. These features together with the ease of system integration make them an attractive and cost effective solution for a number of real-time applications in event selection. In ATLAS the authors consider them as intelligent input buffers (active ROB complex), as event flow supervisors or as powerful processing nodes. Measurements of the performance of one off-the-shelf commercial 4-processor PC with two PCI buses, equipped with commercial FPGA based data source cards (microEnable) and running commercial software are presented and mapped on such applications together with a long-term program of work. The SMP systems may be considered as an important building block in future data acquisition systems.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 755889
- Report Number(s):
- ANL-HEP-CP-00-51; TRN: US0003790
- Resource Relation:
- Conference: 2000 Nuclear Science Symposium and Medical Imaging Conference, Lyon (FR), 10/15/2000--10/20/2000; Other Information: PBD: 23 May 2000
- Country of Publication:
- United States
- Language:
- English
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