An overview of the JINR Tier-1 centre for the CMS experiment at the LHC is given. Special
emphasis is placed on the main tasks and services of the CMS Tier-1 at JINR. In February …

Improvements in web browser performance and web standards compliance, as well as the
availability of comprehensive JavaScript libraries, provides an opportunity to develop …

This paper covers in detail a variety of accounting tools used to monitor the utilisation of the
available computational and storage resources within the ATLAS Distributed Computing …

Abstract The Worldwide LHC Computing Grid relies on the network as a critical part of its
infrastructure and therefore needs to guarantee effective network usage and prompt …

Abstract The Worldwide LHC Computing Grid (WLCG) today includes more than 150
computing centres where more than 2 million jobs are being executed daily and petabytes of …

The aggregate power use of computing hardware is an important cost factor in scientific
cluster and distributed computing systems. The Worldwide LHC Computing Grid (WLCG) is …

Since several years the LHC experiments rely on the WLCG Service Availability Monitoring
framework (SAM) to run functional tests on their distributed computing systems. The SAM …

Abstract Helix Nebula-the Science Cloud Initiative-is a public-private partnership between
Europe's leading scientific research organisations and European IT cloud providers. CERN …

The operation of the CMS computing system requires a complex monitoring system to cover
all its aspects: central services, databases, the distributed computing infrastructure …

The WLCG monitoring system solves a challenging task of keeping track of the LHC
computing activities on the WLCG infrastructure, ensuring health and performance of the …