CHEP 06

Session

Grid Middleware and e-Infrastructure Operation

GMEO

13 Feb 2006, 14:00

Tata Institute of Fundamental Research

423. The Open Science Grid

Frank Wuerthwein (UCSD for the OSG consortium), Ruth Pordes (Fermi National Accelerator Laboratory (FNAL)), Mrs Ruth Pordes (FERMILAB)

13/02/2006, 14:00

Grid middleware and e-Infrastructure operation

oral presentation

We report on the status and plans for the Open Science Grid Consortium, an open, shared national distributed facility in the US which supports a multi-discplinary suite of science applications. More than fifty University and Laboratory groups, including 2 in Brazil and 3 in Asia, now have their resources and services accessible to OSG. 16 Virtual Organizations have registered their...

410. The Integration Testbed of the Open Science Grid

Robert Gardner (University of Chicago)

13/02/2006, 14:20

Grid middleware and e-Infrastructure operation

oral presentation

We describe the purpose, architectural definition, deployment and operational processes for the Integration Testbed (ITB) of the Open Science Grid (OSG). The ITB has been successfully used to integrate a set of functional interfaces and services required for the OSG Deployment. Activity leading to two major deployments of the OSG grid infrastructure. We discuss the methods and logical...

196. The German HEP-Grid initiative

Dr Peter Malzacher (Gesellschaft fuer Schwerionenforschung mbH (GSI))

13/02/2006, 14:40

Grid middleware and e-Infrastructure operation

oral presentation

The German Ministry for Education and Research announced a 100 million euro German e-science initiative focused on: Grid computing, e-learning and knowledge management. In a first phase started September 2005 the Ministry has made available 17 million euro for D-Grid, which currently comprises six research consortia: five community grids - HEP-Grid (high-energy physics),...

404. FermiGrid - Status and Plans

Dr Chadwick Keith (Fermilab)

13/02/2006, 15:00

Grid middleware and e-Infrastructure operation

oral presentation

FermiGrid is a cooperative project across the Fermilab Computing Division and its stakeholders which includes the following 4 key components: Centrally Managed & Supported Common Grid Services, Stakeholder Bilateral Interoperability, Development of OSG Interfaces for Fermilab and Exposure of the Permanent Storage System. The initial goals, current status and future plans for FermiGrid will...

15. GRIF, a Tier2 center for Paris region

Mr Michel Jouvin (LAL / IN2P3)

13/02/2006, 16:00

Grid middleware and e-Infrastructure operation

oral presentation

Several HENP laboratories in Paris region have joined together to provide an LCG/EGEE Tier2 center. This resource, called GRIF, will focus on LCG experiments but will also be opened to EGEE users from other disciplines and to local users. It will provide resources for both analysis and simulation and offer a large storage space (350 TB planned by end of 2007). This Tier2 will have...

57. Grid Computing Research---Its influence on economic and scientific progress for Pakistan

Prof. Arshad Ali (National University of Sciences & Technology (NUST) Pakistan)

13/02/2006, 16:20

Grid middleware and e-Infrastructure operation

oral presentation

We present a report on Grid activities in Pakistan over the last three years and conclude that there is significant technical and economic activity due to the participation in Grid research and development. We started collaboration with participation in the CMS software development group at CERN and Caltech in 2001. This has led to the current setup for CMS production and the LCG Grid...

403. Grid Operations: the evolution of operational model over the first year

Mr Gilles Mathieu (IN2P3, Lyon), Ms Helene Cordier (IN2P3, Lyon), Mr Piotr Nyczyk (CERN)

13/02/2006, 16:40

Grid middleware and e-Infrastructure operation

oral presentation

The paper reports on the evolution of operational model which was set up in the "Enabling Grids for E-sciencE" (EGEE) project, and on the implications of Grid Operations in LHC Computing Grid (LCG). The primary tasks of Grid Operations cover monitoring of resources and services, notification of failures to the relevant contacts and problem tracking through a ticketing system. Moreover,...

320. Global Grid User Support: the model and experience in the Worldwide LHC Computing Grid

Dr Flavia Donno (CERN), Dr Marco Verlato (INFN Padova)

13/02/2006, 17:00

Grid middleware and e-Infrastructure operation

oral presentation

The organization and management of the user support in a global e-science computing infrastructure such as the Worldwide LHC Computing Grid (WLCG) is one of the challenges of the grid. Given the widely distributed nature of the organization, and the spread of expertise for installing, configuring, managing and troubleshooting the grid middleware services, a standard centralized model could...

25. Gridview : A Grid Monitoring and Visualization Tool

Mr Rajesh Kalmady (Bhabha Atomic Research Centre)

13/02/2006, 17:20

Grid middleware and e-Infrastructure operation

oral presentation

The LHC Computing Grid (LCG) connects together hundreds of sites consisting of thousands of components such as computing resources, storage resources, network infrastructure and so on. Various Grid Operation Centres (GOCs) and Regional Operations Centres (ROCs) are setup to monitor the status and operations of the grid. This paper describes Gridview, a Grid Monitoring and Visualization...

359. GridICE: Requirements, Architecture and Experience of a Monitoring Tool for Grid Systems

Mr Sergio Andreozzi (INFN-CNAF)

13/02/2006, 17:40

Grid middleware and e-Infrastructure operation

oral presentation

The Grid paradigm enables the coordination and sharing of a large number of geographically-dispersed heterogeneous resources that are contributed by different institutions. These resources are organized into virtual pools and assigned to group of users. The monitoring of such a distributed and dynamic system raises a number of issues like the need for dealing with administrative...

182. Operations structure for the management, control and support of the INFN-GRID/Grid.It production infrastructure

Dr Maria Cristina Vistoli (Istituto Nazionale di Fisica Nucleare (INFN))

14/02/2006, 14:00

Grid middleware and e-Infrastructure operation

oral presentation

Moving from a National Grid Testbed to a Production quality Grid service for the HEP applications requires an effective operations structure and organization, proper user and operations support, flexible and efficient management and monitoring tools. Moreover the middleware releases should be easily deployable using flexible configuration tools, suitable for various and different local...

28. Integrating a heterogeneous and shared computer cluster into grids

Anja Vest (University of Karlsruhe)

14/02/2006, 14:20

Grid middleware and e-Infrastructure operation

oral presentation

Computer clusters at universities are usually shared among many groups. As an example, the Linux cluster at the "Institut fuer Experimentelle Kernphysik" (IEKP), University of Karlsruhe, is shared between working groups of the high energy physics experiments AMS, CDF and CMS, and has successfully been integrated into the SAM grid of CDF and the LHC computing grid LCG for CMS while it still...

172. Grid Deployment Experiences: The interoperations activity between OSG and LCG.

Mr Laurence Field (CERN)

14/02/2006, 14:40

Grid middleware and e-Infrastructure operation

oral presentation

Open Science Grid (OSG) and LHC Computing Grid (LCG) are two grid infrastructures that were built independently on top of a Virtual Data Toolkit (VDT) core. Due to the demands of the LHC Virtual Organizations (VOs), it has become necessary to ensure that these grids interoperate so that the experiments can seamlessly use them as one resource. This paper describes the work that was...

326. Grid Data Management: Reliable File Transfer Services' Performace

Dr Graeme A Stewart (University of Glasgow)

14/02/2006, 15:00

Grid middleware and e-Infrastructure operation

oral presentation

Data management has proved to be one of the hardest jobs to do in a the grid environment. In particular, file replication has suffered problems of transport failures, client disconnections, duplication of current transfers and resultant server saturation. To address these problems the globus and gLite grid middlewares offer new services which improve the resiliancy and robustness of...

20. The gLite File Transfer Service: Middleware Lessons Learned from the Service Challenges

Mr Paolo Badino (CERN)

14/02/2006, 16:00

Grid middleware and e-Infrastructure operation

oral presentation

In this paper we report on the lessons learned from the Middleware point of view while running the gLite File Transfer Service (FTS) on the LCG Service Challenge 3 setup. The FTS has been designed based on the experience gathered from the Radiant service used in Service Challenge 2, as well as the CMS Phedex transfer service. The first implementation of the FTS was put to use in the...

75. A Scalable Distributed Data Management System for ATLAS

Dr David Cameron (European Organization for Nuclear Research (CERN))

14/02/2006, 16:20

Grid middleware and e-Infrastructure operation

oral presentation

The ATLAS detector currently under construction at CERN's Large Hadron Collider presents data handling requirements of an unprecedented scale. From 2008 the ATLAS distributed data management (DDM) system must manage tens of petabytes of event data per year, distributed around the world: the collaboration comprises 1800 physicists participating from more than 150 universities and...

116. Enabling Grid features in dCache

Timur Perelmutov (FERMI NATIONAL ACCELERATOR LABORATORY)

14/02/2006, 16:40

Grid middleware and e-Infrastructure operation

oral presentation

dCache collaboration actively works on the implementation and improvement of the features and the grid support of dCache storage. It has delivered Storage Resource Managers (SRM) interface, GridFtp server, Resilient Manager and Interactive Web Monitoring tools. SRMs are middleware components whose function is to provide dynamic space allocation and file management of shared storage...

161. BNL Wide Area Data Transfer for RHIC and ATLAS: Experience and Plan

Dr Dantong Yu (BROOKHAVEN NATIONAL LABORATORY), Dr Xin Zhao (BROOKHAVEN NATIONAL LABORATORY)

14/02/2006, 17:00

Grid middleware and e-Infrastructure operation

oral presentation

We describe two illustrative cases in which Grid middleware (GridFtp, dCache and SRM) was used successfully to transfer hundreds of terabytes of data between BNL and its remote RHIC and ATLAS collaborators. The first case involved PHENIX production data transfers to CCJ, a regional center in Japan, during the 2005 RHIC run. Approximately 270TB of data, representing 6.8 billion polarized...

36. Project DASH: Securing Direct MySQL Database Access for the Grid

Dr Alexandre Vaniachine (ANL)

14/02/2006, 17:20

Grid middleware and e-Infrastructure operation

oral presentation

High energy and nuclear physics applications on computational grids require efficient access to terabytes of data managed in relational databases. Databases also play a critical role in grid middleware: file catalogues, monitoring, etc. Crosscutting the computational grid infrastructure, a hyperinfrastructure of the databases emerges. The Database Access for Secure Hyperinfrastructure...

238. The AMGA Metadata Service in gLite

Dr Birger Koblitz (CERN)

14/02/2006, 17:40

Grid middleware and e-Infrastructure operation

oral presentation

We present the AMGA (ARDA Metadata Grid Application) metadata catalog, which is a part of the gLite middleware. AMGA provides a very lightweight metadata service as well as basic database access functionality on the Grid. Following a brief overview of the AMGA design, functionality, implementation and security features, we will show performance comparisons of AMGA with direct database...

401. A Grid of Grids using Condor-G

Dr Rodney Walker (SFU)

15/02/2006, 14:00

Grid middleware and e-Infrastructure operation

oral presentation

The Condor-G meta-scheduling system has been used to create a single Grid of GT2 resources from LCG and GridX1, and ARC resources from NorduGrid. Condor-G provides the submission interfaces to GT2 and ARC gatekeepers, enabling transparent submission via the scheduler. Resource status from the native information systems is converted to the Condor ClassAd format and used for matchmaking to...

290. Flexible job submission using Web Services: the gLite WMProxy experience

Giuseppe AVELLINO (Datamat S.p.A.)

15/02/2006, 14:20

Grid middleware and e-Infrastructure operation

oral presentation

Contemporary Grids are characterized by a middleware that provides the necessary virtualization of computation and data resources for the shared working environment of the Grid. In a large-scale view, different middleware technologies and implementations have to coexist. The SOA approach provides the needed architectural backbone for interoperable environments, where different...

214. An Edge Services Framework (ESF) for EGEE, LCG, and OSG

Abhishek Singh RANA (University of California, San Diego, CA, USA)

15/02/2006, 14:40

Grid middleware and e-Infrastructure operation

oral presentation

We report on first experiences with building and operating an Edge Services Framework (ESF) based on Xen virtual machines instantiated via the Workspace Service available in Globus Toolkit, and developed as a joint project between EGEE, LCG, and OSG. Many computing facilities are architected with their compute and storage clusters behind firewalls. Edge Services are instantiated on a small...

165. Virtualisation: Performance and Use Cases

Mr Marcus Hardt (Unknown)

15/02/2006, 15:00

Grid middleware and e-Infrastructure operation

oral presentation

One problem in distributed computing is bringing together application developers and resource providers to ensure that applications work well on the resources provided. A layer of abstraction between resources and applications provides new possibilities in designing Grid solutions. This paper compares different virtualisation environments, among which are Xen (developed at the...

294. Implementing Finer Grained Authorization on the Open Science Grid

Abhishek Singh Rana (UCSD)

15/02/2006, 16:00

Grid middleware and e-Infrastructure operation

oral presentation

Securely authorizing incoming users with appropriate privileges on distributed grid computing resources is a difficult problem. In this paper we present the work of the Open Science Grid Privilege Project which is a collaboration of developers from universities and national labs to develop an authorization infrastructure to provide finer grained authorization consistently to all grid...

133. GRATIA, a resource accounting system for OSG

Mr Philippe Canal (FERMILAB)

15/02/2006, 16:20

Grid middleware and e-Infrastructure operation

oral presentation

We will describe the architecture and implementation of the new accounting service for the Open Science Grid. Gratia's main goal is to provide the OSG stakeholders with a reliable and accurate set of views of the usage of ressources across the OSG. Gratia implements a service oriented, secure framework for the necessary collectors and sensors. Gratia also provides repositories and access...

112. DIRAC Security Infrastructure

Mr Adrian Casajus Ramo (Departamento d' Estructura i Constituents de la Materia)

15/02/2006, 16:40

Grid middleware and e-Infrastructure operation

oral presentation

DIRAC is the LHCb Workload and Data Management System and is based on a service-oriented architecture. It enables generic distributed computing with lightweight Agents and Clients for job execution and data transfers. DIRAC code base is 99% python with all remote requests handled using the XML-RPC protocol. DIRAC is used for the submission of production and analysis jobs by the LHCb...

34. The Virtual Organization Management Registration Service

Mrs Tanya Levshina (FERMILAB)

15/02/2006, 17:00

Grid middleware and e-Infrastructure operation

oral presentation

Currently, grid development projects require end users to be authenticated under the auspices of a "recognized" organization, called a Virtual Organization (VO). A VO establishes resource-usage agreements with grid resource providers. The VO is responsible for authorizing its members and optionally assigning them to groups and roles within the VO. This enables fine-grained authorization...

6. Web servers for bulk file transfer and storage

Dr Andrew McNab (UNIVERSITY OF MANCHESTER)

15/02/2006, 17:20

Grid middleware and e-Infrastructure operation

oral presentation

GridSite has extended the industry-standard Apache webserver for use within Grid projects, both by adding support for Grid security credentials such as GSI and VOMS, and with the GridHTTP protocol for bulk file transfer via HTTP. We describe how GridHTTP combines the security model of X.509/HTTPS with the performance of Apache, in local and wide area bulk transfer applications. GridSite...

144. Meta-configuration for dynamic resource brokering: the SUMS approach

Mr Levente HAJDU (BROOKHAVEN NATIONAL LABORATORY)

15/02/2006, 17:40

Grid middleware and e-Infrastructure operation

oral presentation

In the distributed computing world of heterogeneity, sites may have from the bare minimum Globus package available to a plethora of advanced services. Moreover, sites may have restrictions and limitations which need to be understood by resource brokers and planner in order to take the best advantage of resource and computing cycles. Facing this reality and to take full advantage of any...

68. DØ Data Reprocessing with SAM-Grid

Dr Joel Snow (Langston University)

16/02/2006, 14:00

Grid middleware and e-Infrastructure operation

oral presentation

Periodically an experiment will reprocess data taken previously to take advantage of advances in its reconstruction code and improved understanding of the detector. Within a period of ~6 months the DØ experiment has reprocessed, on the grid, a large fraction (0.5fb-1) of the Run II data. This corresponds to some 1 billion events or 250TB of data and used raw data as input, requiring...

285. A Statistical Analysis of Job Performance within LCG Grid.

Mrs Mona Aggarwal (Imperial College London)

16/02/2006, 14:20

Grid middleware and e-Infrastructure operation

oral presentation

The LCG is an operational Grid currently running at 136 sites in 36 countries, offering its users access to nearly 14,000 CPUs and approximately 8PB of storage [1]. Monitoring the state and performance of such a system is challenging but vital to successful operation. In this context the primary motivation for this research is to analyze LCG performance by doing a statistical analysis of...

169. Using Grid Technologies for Lattice QCD

Dr Dirk Pleiter (DESY)

16/02/2006, 14:40

Grid middleware and e-Infrastructure operation

oral presentation

Numerical simulations of QCD formulated on the lattice (LQCD) require a huge amount of computational resources. Grid technologies can help to improve exploitation of these precious resources, e.g. by sharing the produced data on a global level. The International Lattice DataGrid (ILDG) has been founded to define the required standards needed for a grid infrastructure to be used for...

55. The Medical Physics Simulation with Grid

Go Iwai (JST)

16/02/2006, 15:00

Grid middleware and e-Infrastructure operation

oral presentation

A new project for advanced simulation technology in radiotherapy was launched on Oct. 2003 with funding of JST (Japan Science and Technology Agency) in Japan. The project aim is to develop an ample set of simulation package for radiotherapy based on Geant4 in collaboration between Geant4 developers and medical users. They need much more computing power and strong security for accurate and...