1,829 research outputs found
CMS results in the Combined Computing Readiness Challenge (CCRC’08)
No full textDuring February and May 2008, CMS participated to the Combined Computing Readiness Challenge (CCRC’08) together with all other LHC experiments. The purpose of this worldwide exercise was to check the readiness of the Computing infrastructure for LHC data taking. Another set of ma jor CMS tests called Computing, Software and Analysis challenge (CSA’08) - as well as CMS cosmic runs - were also running at the same time: CCRC augmented the load on computing with additional tests to validate and stress-test all CMS computing workflows at full data taking scale, also extending this to the global WLCG community. CMS exercised most aspects of the CMS computing model, with very comprehensive tests. During May 2008, CMS moved more than 3.6 Petabytes among more than 300 links in the complex Grid topology. CMS demonstrated that is able to safely move data out of CERN to the Tier-1 sites, sustaining more than 600 MB/s as a daily average for more than seven days in a row, with enough headroom and with hourly peaks of up to 1.7 GB/s. CMS ran hundreds of simultaneous jobs at each Tier-1 site, re-reconstructing and skimming hundreds of millions of events. After re-reconstruction the fresh AOD (Analysis Object Data) has to be synchronized between Tier-1 centers: CMS demonstrated that the required inter-Tier-1 transfers are achievable within a few days. CMS also showed that skimmed analysis data sets can be transferred to Tier-2 sites for analysis at sufficient rate, regionally as well as inter-regionally, achieving all goals in about 90% of >200 links. Simultaneously, CMS also ran a large Tier-2 analysis exercise, where realistic analysis jobs were submitted to a large set of Tier-2 sites by a large number of people to produce a chaotic workload across the systems, and with more than 400 analysis users in May. Taken all together, CMS routinely achieved submissions of 100k jobs/day, with peaks up to 200k jobs/day. The achieved results in CCRC’08 - focussing on the distributed workflows - are presented and discussed
Karpacki mikrokosmos — wieś Baia Luna w powieści Rolfa Bauerdicka Jak Matka Boska trafiła na Księżyc
No full textThe Carpathian microcosm — the village of Baia Luna in Rolf Bauerdick’s novel The Madonna on the MoonThe article is to present a fictional village of Baia Luna, located in the Romanian Carpathians by Rolf Bauerdick in his novel The Madonna on the Moon. Through a brief overview of the role of the Carpathian range in Romania’s landscape and culture, the author introduces an analysis of the village of Baia Luna, its location in the mountains and the influence of isolation on the life of its inhabitants. The aim is to see the relation between the mountains in which the action of the novel takes place and the other elements of the world presented in Bauerdick’s work.The Carpathian microcosm — the village of Baia Luna in Rolf Bauerdick’s novel The Madonna on the MoonThe article is to present a fictional village of Baia Luna, located in the Romanian Carpathians by Rolf Bauerdick in his novel The Madonna on the Moon. Through a brief overview of the role of the Carpathian range in Romania’s landscape and culture, the author introduces an analysis of the village of Baia Luna, its location in the mountains and the influence of isolation on the life of its inhabitants. The aim is to see the relation between the mountains in which the action of the novel takes place and the other elements of the world presented in Bauerdick’s work
The CMS data analysis school experience
No full textThe CMS Data Analysis School is an official event organized by the CMS Collaboration to teach students and post-docs how to perform a physics analysis. The school is coordinated by the CMS schools committee and was first implemented at the LHC Physics Center at Fermilab in 2010. As part of the training, there are a number of "short" exercises on physics object reconstruction and identification, Monte Carlo simulation, and statistical analysis, which are followed by "long" exercises based on physics analyses. Some of the long exercises go beyond the current state of the art of the corresponding CMS analyses. This paper describes the goals of the school, the preparations for a school, the structure of the training, and student satisfaction with the experience as measured by surveys
ETA Learning Factory: A Holistic Concept for Teaching Energy Efficiency in Production
No full textAbstractConsidering the fact that industrial processes account for 19.1% of the German primary energy demand, it is necessary to raise awareness and promote energy efficiency technologies in this sector to reach the climate targets of the European Union. In the ETA research factory (Energy efficiency, Technology and Application center) in Darmstadt a holistic approach for an energy efficient factory is examined. The interdisciplinary research areas include several aspects of energy efficiency measures in the building, supply technology and production machines. This paper presents a training concept for transferring the multidisciplinary technical and methodical know-how about the proposed energy efficiency measures to industry and engineering students with an adapted didactical concept
Messung der Resonanzkurve des Z-Bosons in der Elektron-Positron-Vernichtung mit dem ALEPH-Detektor
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Die innere Struktur des Protons: Farbneutrale Konstituenten im Nukleon - dem Pomeron auf der Spur
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