Enabling CMS Experiment to the utilization of multiple hardware architectures: a Power9 Testbed at CINECA

Author:

Boccali T.,Spiga D,Rodrigues Alan Malta,Mascheroni M.,Fanzago F.

Abstract

Abstract The CMS software stack (CMSSW) is built on a nightly basis for multiple hardware architectures and compilers, in order to benefit from the diverse platforms. In practice, still, only x86_64 binaries are used in production, and are supported by the workload management tools in charge of production and analysis job delivery to the distributed computing infrastructure. Profiting from an INFN grant at CINECA, a PRACE Tier-0 Center, tests have been carried on using IBM Power9 nodes from the Marconi100 HPC system. A first study on the modifications needed to the standard CMS WMS systems is shown, and very positive proof-of-concept tests have been conducted up to thousands of computing cores, also including an initial utilization of the GPUs which the nodes host. The current status of the tests, including plans to support multi-architecture workflows, are shown and discussed.

Publisher

IOP Publishing

Subject

Computer Science Applications,History,Education

Reference17 articles.

1. The CMS Experiment at the CERN LHC;Chatrchyan;JINST,2008

2. LHC Machine;Evans;Journal of Instrumentation,2008

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