Allen: A high-level trigger on GPUs for LHCb

Documento escrito por un elevado número de autores/as, solo se referencia el/la que aparece en primer lugar y los/as autores/as pertenecientes a la UC3M.We describe a fully GPU-based implementation of the first level trigger for the upgrade of the LHCb detector, due to start data taking in 2021. We demonstrate that our implementation, named Allen, can process the 40 Tbit/s data rate of the upgraded LHCb detector and perform a wide variety of pattern recognition tasks. These include finding the trajectories of charged particles, finding proton-proton collision points, identifying particles as hadrons or muons, and finding the displaced decay vertices of long-lived particles. We further demonstrate that Allen can be implemented in around 500 scientific or consumer GPU cards, that it is not I/O bound, and can be operated at the full LHC collision rate of 30 MHz. Allen is the first complete high-throughput GPU trigger proposed for a HEP experiment.We would like to thank N. Neufeld and T. Colombo for many fruitful discussions. We also thank the LHCb RTA team for supporting this publication and reviewing this work. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (The Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MSHE (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (UK); DOE NP and NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (The Netherlands), PIC (Spain), GridPP (UK), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union); ANR, Labex P2IO and OCEVU, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, and the Thousand Talents Program (China); RFBR, RSF and Yandex LLC (Russia); GVA, XuntaGal and GENCAT (Spain); the Royal Society and the Leverhulme Trust (UK). J. Albrecht acknowledges support of the European Research Council Starting Grant PRECISION 714536. D. vom Bruch, V. V. Gligorov, F. Reiss and R. Quagliani acknowledge support of the European Research Council Consolidator Grant RECEPT 724777. H. Stevens, L. Funke acknowledge support of the Collaborative Research Center SFB 876. T. Boettcher and M. Williams are supported by US NSF Grant PHY-1912836. D. Craik is supported by US NSF Grants OAC-1836650 and PHY-1904160. A. Ustyuzhanin is supported by the Russian Science Foundation Grant Agreement No. 19-71-30020. D. Martínez Santos and A. Brea Rodríguez acknowledge support from the European Research Council Starting Grant BSMFLEET 639068

MAIS - A Model for the Multi-criteria Analysis of Interaction Solutions

AbstractThe research methodology applied in this work, consisted of the following steps: initially, we collected work that applied subjective analysis methods in a decision making process in order to choose the appropriate interaction solution(s) to the users’ preferences. Then, we verified the characteristics of the multi-criteria approaches found in such works, which did not provide designers with support to define what to evaluate in solutions, how to assess them nor to what purpose the analysis is made. Subsequently, we derived a general process, from which we could identify the main elements to generate an evaluation model. Such elements refer to interaction aspects, concepts, techniques and methods coming from different areas of computer scienc

Right atrium crossover

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An architecture for interoperability and ubiquity of medical information

In critical situations, such as decision making in healthcare, is necessary to have access to all the patient’s information, this information must be reliable, and must be accessed in an easy and fast way. These requirements make medical information systems of extreme importance. However in today’s molds and with the advent of the Internet and mobile devices, a paradigm shift, from the current isolated systems to interoperable distributed systems, that take advantage of ubiquitous computing, is needed. The present work proposes an architecture that aims to answer the needs of interoperability between heterogeneous systems and the need of ubiquity of medical information systems

Empty Coruña?: un dispositivo académico transdisciplinar para a abordaxe, dende unha perspectiva dos dereitos, da problemática urbana trala crise financeira

[Resumo] O curso de verán “Empty Coruña? inhabited processes: mid crisis urban transformation” nace como unha experiencia educativa con orientación transdisciplinar. Busca analizar e investigar os efectos da crise financeira no espazo da cidade da Coruña desde diferentes perspectivas e actividades para acadar unha visión integradora da situación. Neste artigo presentamos as diferentes motivacións teóricas e as cuestións prácticas que se desenvolveron nun curso que pretende acercar a academia ás necesidades contemporáneas da nosa sociedade.[Abstract] Summer course “Empty Coruña? inhabited processes: mid crisis urban transformation” is born as an educational experience with transdisciplinary orientation. It looks for to analyze and research the effects of the financial crisis in the space of the city of A Coruña from different perspectives and activities to achieve an integrative vision of the situation. In this article we present the various theoretical motivations and the practical questions that were developed in a course adressed to land academia on contemporary social issues

Promoting ubiquity and interoperability among health information systems using an soa based architecture

Health information systems are of extreme importance and they became an intrinsic part of the healthcare sector. However, in today’s molds and with the advent of the Internet and mobile devices, a paradigm shift, from the current isolated systems to interoperable distributed systems, that take advantage of ubiquitous computing, is needed. In critical situations, such as decision making in healthcare, it is necessary to have access to all of the patient’s information; for the information must be reliable and must be accessed in an easy and fast way. The present work proposes an architecture that aims to answer the needs of interoperability between heterogeneous health information systems and the need for ubiquity of medical information. A prototype was developed that tries to provide interoperability through a service-oriented architecture using web services. A mobile component was also developed to enable ubiquitous access to medical information. This work is based on the authors’ knowledge about the Portuguese National Health Service

A SOA based architecture to promote ubiquity and interoperability among health information systems

In critical situations, such as decision making in healthcare, is necessary to have access to all of the patient’s information, the information must be reliable, and must be accessed in an easy and fast way. These requirements make medical information systems of extreme importance. However in today’s molds and with the advent of the Internet and mobile devices, a paradigm shift, from the current isolated systems to interoperable distributed systems, that take advantage of ubiquitous computing, is needed. The present work proposes an architecture that aims to answer the needs of interoperability between heterogeneous systems and the need of ubiquity of medical information systems. A prototype was developed that tries to provide interoperability through a service-oriented architecture using web services. A mobile component was also developed to enable ubiquitous access to medical information. This work was based on the author’s knowledge about the Portuguese National Health Service

MMP-2 and sTNF-R1 variability in patients with essential hypertension: 1-year follow-up study

The aim of this study is to analyze MMP-2 and sTNF-R1 variability, potent predictors of cardiovascular events, in stable hypertensive patients during a 12-month followup. 234 asymptomatic patients (age 6 0 ± 1 3 , 136 male) out of 252 patients with essential hypertension were followed up. MMP-2 and sTNF-R1 were measured at baseline and after 12 months (stage I). To compare MMP-2 and sTNF-R1 levels over time interval, we used the statistical method of Bland-Altman. MMP-2 and sTNF-R1 reproducibility was good in our patients for the two intervals with a coefficient of reproducibility of 8.2% and 11.3%, respectively. The percentages of patients within 1.96 × standard deviation of the mean were 93.6% and 92.7%. An elevated coefficient of correlation was obtained for MMP-2, basal versus stage I

Aortic valve endocarditis by a rare infectious agent in a patient with a rare congenital mitral valve abnormality

© The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact [email protected] description: A 66-year-old woman with a past medical history of high blood pressure, Type 2 diabetes mellitus and no clinical evidence of immunocompromise, presented to the emergency room with fever and acute pulmonary oedema. The patient had presented low-grade fever and anorexia in the previous 3 weeks.info:eu-repo/semantics/publishedVersio