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LHCb Note | |
Report number | LHCb-PROC-2005-003 ; CERN-LHCb-PROC-2005-003 |
Title | Configuring the LHCb Readout System using a Database |
Author(s) | Abadie, Lana (CERN) |
Note | There are 2 proceedings for the same talk (LHCb-TALK-2005-008): LHCb-PROC-2005-002 and LHCb-PROC-2005-003 |
Submitted to | 14th IEEE - NPSS Real Time Conference, Stockholm, Sweden, 4 - 10 Jun 2005 |
Submitted by | [email protected] on 19 Jun 2005 |
Subject category | Computing and Computers |
Accelerator/Facility, Experiment | CERN LHC ; LHCb |
Abstract | The LHCb readout system is composed of hundreds of electronic boards, an event-building network based on Gigabit Ethernet switches and an online processing farm. The Experiment Control System (ECS) configures the system from an online configuration database. This database must contain device parameters, the hierarchical structure and the connectivity information of the system. In addition the switches in the event-building network require routing tables that have to be generated according to the connectivity while ensuring optimal load balancing. We apply the Entity Relationship model to represent the connectivity of the system. PL/SQL code dynamically builds the routing tables using the information contained in the database. |
Copyright/License | Preprint: (License: CC-BY-4.0) |
Related document | Slides LHCb-TALK-2005-008 |