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921“…The farm currently provides 268 CPU cores and 177 TB of storage space. A grid Storage Element, implemented with the Disk Pool Manager software, is available and integrated with the ATLAS Distributed Data Management system. …”
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922por Lazzaro, A“…Depending on the number of variables, complexity of their probability density functions, number of events, and number of sample to generate, the whole procedure can be high CPU-time consuming. In this paper we show how the Monte Carlo generation of the events for each simulated sample can be parallelized using OpenMP to scale over multi-cores in a single computational node.…”
Publicado 2010
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923“…The farm currently provides 268 CPU cores and 177 TB of storage space. A grid Storage Element, implemented with the Disk Pool Manager software, is available and integrated with the ATLAS Distributed Data Management system. …”
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924“…The final step of this task is performed with two calibration methods using the real data from the experimental setup. It is a very CPU-consuming procedure as both methods require processing of $\mathcal{O}10^8$ events which must be selected, reconstructed and analyzed. …”
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925por Benelli, Gabriele, Bozsogi, Balazs, Pfeiffer, Andreas, Piparo, Danilo, Zemleris, Vidmantas“…A software performance suite of tools has been developed and integrated in CMSSW to keep track of cpu time, memory footprint and event size on disk. …”
Publicado 2011
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926“…In order to respond to these changing requirements, the current and future usage of CPU, memory and disk resources has to be monitored, understood and acted upon. …”
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927“…In order to respond to these changing requirements, the current and future usage of CPU, memory and disk resources has to be monitored, understood and acted upon. …”
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928por Mazurov, Alexander“…It’s not easy to find hot spots in the code - only special tools can help to understand where CPU or memory usage is not reasonable. There exist many performance analyzing tools, but the main problem is that they show reports in terms of class and function names and such information usually is not very useful - the majority of algorithm developers use the Gaudi framework abstractions and usually do not know about functions which lie at the lower level. …”
Publicado 2012
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929por Schovancova, J, Barreiro Megino, F H, Borrego, C, Campana, S, Di Girolamo, A, Elmsheuser, J, Hejbal, J, Kouba, T, Legger, F, Magradze, E, Medrano Llamas, R, Negri, G, Rinaldi, L, Sciacca, G, Serfon, C, Van Der Ster, D C“…The ATLAS Grid sites provide over 100k CPU job slots, over 100 PB of storage space on disk or tape. …”
Publicado 2012
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930“…The performance of the program was tested by running it on two different platforms: NVIDIA GeForce 470 GTX GPU and a 12-core AMD CPU system. Our conclusion was that GPUs can be a competitive alternate for multi-core computers but porting existing software in an efficient way is challenging.…”
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931por Schovancova, J, Barreiro Megino, F H, Borrego, C, Campana, S, Di Girolamo, A, Elmsheuser, J, Hejbal, J, Kouba, T, Legger, F, Magradze, E, Medrano Llamas, R, Negri, G, Rinaldi, L, Sciacca, G, Serfon, C, Van Der Ster, D C“…The ATLAS Grid sites provide over 100k CPU job slots, over 100 PB of storage space on disk or tape. …”
Publicado 2012
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932por Allison, J, Apostolakis, J, Bagulya, A, Champion, C, Elles, S, Garay, F, Grichine, V, Howard, A, Incerti, S, Ivanchenko, V, Jacquemier, J, Maire, M, Mantero, A, Nieminen, P, Pandola, L, Santin, G, Sawkey, D, Schalicke, A, Urban, L“…Significant efforts have been made to improve the accuracy without compromising of CPU speed for EM particle transport. New biasing options have been introduced, which are applicable to any EM process. …”
Publicado 2012
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933“…It is not easy to find hotspots in the code - only specialized tools can help to understand where CPU or memory usage are not reasonable. There exist many performance analyzing tools, but the main problem is that they show reports in terms of class and function names and such information usually is not very useful - the majority of algorithm developers use the Gaudi framework abstractions and usually do not know about functions which lie at the lower level. …”
Enlace del recurso
Enlace del recurso
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934“…Data storage and data access represent the key of CPU-intensive and data-intensive high performance Grid computing. …”
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935“…Moreover, it enables service scalability and dramatically reduces the network resources and overhead (CPU and memory) on publisher machine, required to serve all subscriptions. …”
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936por The ATLAS collaboration“…Many physics and performance studies with the ATLAS detector at the Large Hadron Collider require very large samples of simulated events, and producing these using the full Geant4 detector simulation is highly CPU intensive. Often, a very detailed detector simulation is not needed, and in these cases fast simulation tools can be used. …”
Publicado 2014
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937“…A track finding efficiency of 98.8 % relative to offline can be achieved for tracks with $p_T >$ 500 MeV/$c$. The CPU time required for this reconstruction is about 40 % of the available budget. …”
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938por Marinaci, Stefano“…The PROOF technology is rather ecient to exploit all the CPU's provided by many-core processors. A dedicated version of PROOF, PROOF-Lite, provides an out-of-the-box solution to take full advantage of the additional cores available in today desktops or laptops. …”
Publicado 2014
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939“…Such frameworks were traditionally based on serial code and relied on advances in CPU technologies, mainly clock frequency, to cope with increasing data volumes. …”
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Enlace del recurso
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940“…Those projects resulted in the reduction of the CPU time required for reconstruction of real data with an average $mu$ of 40 by more than 3 compared to 2012, which was required to meet the challenges of the expected increase in pileup and the higher data taking rate of up to 1 kHz. …”
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Enlace del recurso