803 research outputs found
GATE simulation for medical physics with genius Web portal
présenté par C. ThiamPCSV team of the LPC laboratory in Clermont-Ferrand is involved in the deployment of biomedical applications on the grid architecture. One of these applications deals with the deployment of GATE (Geant4 Application for Tomographic Emission) for medical physics application. The aim of the developments actually performed is to enable an application of the GATE platform in clinical routine. However, this perspective is only possible if the computing time and user time are highly reduced. The new grid architecture, developed within the framework of the European project Enabling Grid for E-sciencE (EGEE) is there to answer this requirement. The use of the grid resources must be transparent easy and rapid for the medical physicists. For this perpose, we adapted the GENIUS web portal in order to facilitate the GATE simulations planning on the grid. We will present a demonstration of the GENIUS portal which integrates all the functionalities of EGEE: to create, to submit and manage GATE jobs on the grid architecture. Our GATE activities for dosimetry application entered in to direct phase of evaluation by the cancer treatment center of Clermont Ferrand (Centre Jean perrin).A work station is currently available in this center to test the use of GATE application on the grid through GENIUS. This portal will allow in a long term to use GATE application in brachytherapy and radiotherapy treatment planning using medical data (medical images, DICOM, binary data dose calculation in the heterogeneous mediums) and to analyze the results obtained in visual form. Other functionalities are under development and will make possible to register medical data on grid storages elements and to manage them. However, these data must be anonymised before their recording on the grid. Their access via the GENIUS portal must be made safe and fast (compared simulation computing time). In order to be sure that the medical data are accessible for calculations, their replication on various storage element (SE) should be possible. The grid services give the possibility of managing this information in a free way and transparently. Operations of data handling and catalogues on the grid are ensured by the Replica Manager system which integrates all tools making it possible to manage data on the grid. The computing grid give promising results and meet a definite need: reach acceptable computing time for a future use of Monte Carlo simulations for treatment planning in brachytherapy and radiotherapy
3rd EGEE User Forum
We have organized this book in a sequence of chapters, each chapter associated with an application or technical theme introduced by an overview of the contents, and a summary of the main conclusions coming from the Forum for the chapter topic. The first chapter gathers all the plenary session keynote addresses, and following this there is a sequence of chapters covering the application flavoured sessions. These are followed by chapters with the flavour of Computer Science and Grid Technology. The final chapter covers the important number of practical demonstrations and posters exhibited at the Forum. Much of the work presented has a direct link to specific areas of Science, and so we have created a Science Index, presented below. In addition, at the end of this book, we provide a complete list of the institutes and countries involved in the User Forum
WSU Research News, Spring/Summer 2013
A twenty page newsletter of the WSU Research News. The WSU Research News was published monthly beginning in June of 1968 and issued by the Office of Research Development. This newsletter was created to provide information to the WSU faculty about the availability of outside funds for research and educational programs, new developments that may affect availability of funds, and general information on research and educational activities at Wright State University.https://corescholar.libraries.wright.edu/wsu_research_news/1207/thumbnail.jp
Grid accounting for computing and storage resources towards standardization
In the last years, we have seen a growing interest of the scientific community first and commercial
vendors then, in new technologies like Grid and Cloud computing. The first in particular, was born to
meet the enormous computational requests mostly coming from physic experiments, especially Large
Hadron Collider's (LHC) experiments at Conseil Européen pour la Recherche Nucléaire (European
Laboratory for Particle Physics) (CERN) in Geneva. Other scientific disciplines that are also benefiting
from those technologies are biology, astronomy, earth sciences, life sciences, etc. Grid systems allow
the sharing of heterogeneous computational and storage resources between different geographically
distributed institutes, agencies or universities. For this purpose technologies have been developed to
allow communication, authentication, storing and processing of the required software and scientific
data. This allows different scientific communities the access to computational resources that a single
institute could not host for logistical and cost reasons. Grid systems were not the only answer to this
growing need of resources of different communities. At the same time, in the last years, we have seen
the affirmation of the so called Cloud Computing. Cloud computing is a model for enabling
convenient, on-demand network access to a shared pool of configurable computing resources (e.g.:
networks, servers, storage, applications, and services) that can be rapidly provisioned and released with
minimal management effort or service provider interaction. The use of both computational paradigms
and the utilization of storage resources, leverage on different authentication and authorization tools.
The utilization of those technologies requires systems for the accounting of the consumed resources.
Those systems are built on the top of the existing infrastructure and they collect all the needed data
related to the users, groups and resources utilized. This information is then collected in central
repositories where they can be analyzed and aggregated. Open Grid Forum (OGF) is the international
organism that works to develop standards in the Grid environment. Usage Record - Working Group
(UR-WG) is a group, born within OGF aiming at standardizing the Usage Record (UR) structure and
publication for different kinds of resources. Up to now, the emphasis has been on the accounting for
computational resources. With time it came out the need to expand those concepts to other aspects and
especially to a definition and implementation of a standard UR for storage accounting. Several
extensions to the UR definition are proposed in this thesis and the proposed developments in this field
are described. The Distributed Grid Accounting System (DGAS) has been chosen, among other tools
available, as the accounting system for the Italian Grid and is also adopted in other countries such as
Greece and Germany. Together with HLRmon, it offers a complete accounting system and it is the tool
that has been used during the writing of the thesis at INFN-CNAF.
• In Chapter 1, I will focus on the paradigm of distributed computing and the Grid infrastructure
will be introduced with particular emphasis on the gLite middleware and the EGI-InSPIRE
project.
• In Chapter 2, I will discuss some Grid accounting systems for computational resources with
particular stress for DGAS.
• In Chapter 3, the cross-check monitoring system used to check the correctness of the gathered
data at the INFN-CNAF's Tier1 is presented.
• In Chapter 4, another important aspect on accounting, accounting for storage resources, is
introduced and the definition of a standard UR for storage accounting is presented.
• In Chapter 5, an implementation of a new accounting system for the storage that uses the
definitions given in Chapter 4 is presented.
• In Chapter 6, the focus of the thesis move on the performance and reliability tests performed on
the latest development release of DGAS that implements ActiveMQ as a standard transport
mechanism.
• In Appendix A are collected the BASH scripts and SQL code that are part of the cross-check
tool described in Chapter 3.
• In Appendix B are collected the scripts used in the implementation of the accounting system
described in Chapter 5.
• In Appendix C are collected the scripts and configurations used for the tests of the ActiveMQ
implementation of DGAS described in Chapter 6.
• In Appendix D are collected the publications in which I contributed during the thesis wor
HSLIC Annual Report FY2005-06
https://digitalrepository.unm.edu/hslic-annual-reports/1016/thumbnail.jp
Annual Research Report, 2009-2010
Annual report of collaborative research projects of Old Dominion University faculty and students in partnership with business, industry and governmenthttps://digitalcommons.odu.edu/or_researchreports/1001/thumbnail.jp
Ordinary Extraordinary Gamespaces Videogames As Transient Spaces of Everyday Life
Master'sMASTER OF ART
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