Parallel event analysis under UNIX

The ALEPH experiment at LEP, the CERN CN division and Digital Equipment Corp. have, in a joint project, developed a parallel event analysis system. The parallel physics code is identical to ALEPH's standard analysis code, ALPHA, only the organisation of input/output is changed. The user may swi...

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Detalles Bibliográficos
Autores principales: Looney, S, Nilsson, B S, Oest, T, Pettersson, Thomas Sven, Ranjard, F, Thibonnier, J.-P.
Lenguaje:eng
Publicado: 1996
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1142/9789814447188_0040
http://cds.cern.ch/record/338420
Descripción
Sumario:The ALEPH experiment at LEP, the CERN CN division and Digital Equipment Corp. have, in a joint project, developed a parallel event analysis system. The parallel physics code is identical to ALEPH's standard analysis code, ALPHA, only the organisation of input/output is changed. The user may switch between sequential and parallel processing by simply changing one input "card". The initial implementation runs on an 8-node DEC 3000/400 farm, using the PVM software, and exhibits a near-perfect speed-up linearity, reducing the turn-around time by a factor of 8

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