240 citations · 594 across the 44 of their papers we have counts for
24 papers · 1 filter
CRIU -- Checkpoint Restore in Userspace for computational simulations and scientific applications
Fabio Andrijauskas, Igor Sfiligoi, Diego Davila +5
Creating new materials, discovering new drugs, and simulating systems are essential processes for research and innovation and require substantial computational power. While many ap…
Coffea-Casa: Building composable analysis facilities for the HL-LHC
Sam Albin, Garhan Attebury, Kenneth Bloom +4
The large data volumes expected from the High Luminosity LHC (HL-LHC) present challenges to existing paradigms and facilities for end-user data analysis. Modern cyberinfrastructure…
Systematic benchmarking of HTTPS third party copy on 100Gbps links using XRootD
Edgar Fajardo, Aashay Arora, Diego Davila +3
The High Luminosity Large Hadron Collider provides a data challenge. The amount of data recorded from the experiments and transported to hundreds of sites will see a thirty fold in…
Coffea-casa: an analysis facility prototype
Matous Adamec, Garhan Attebury, Kenneth Bloom +4
Data analysis in HEP has often relied on batch systems and event loops; users are given a non-interactive interface to computing resources and consider data event-by-event. The "Co…
An intelligent Data Delivery Service for and beyond the ATLAS experiment
Wen Guan, Tadashi Maeno, Brian Paul Bockelman +5
The intelligent Data Delivery Service (iDDS) has been developed to cope with the huge increase of computing and storage resource usage in the coming LHC data taking. iDDS has been…
Adapting LIGO workflows to run in the Open Science Grid
Edgar Fajardo, Frank Wuerthwein, Brian Bockelman +5
During the first observation run the LIGO collaboration needed to offload some of its most, intense CPU workflows from its dedicated computing sites to opportunistic resources. Ope…
Third-party transfers in WLCG using HTTP
Brian Bockelman, Andrea Ceccanti, Fabrizio Furano +3
Since its earliest days, the Worldwide LHC Computational Grid (WLCG) has relied on GridFTP to transfer data between sites. The announcement that Globus is dropping support of its o…
Towards an Intelligent Data Delivery Service
Wen Guan, Tadashi Maeno, Gancho Dimitrov +4
The ATLAS Event Streaming Service (ESS) at the LHC is an approach to preprocess and deliver data for Event Service (ES) that has implemented a fine-grained approach for ATLAS event…
Creating a content delivery network for general science on the internet backbone using XCaches
Edgar Fajardo, Marian Zvada, Derek Weitzel +9
A general problem faced by computing on the grid for opportunistic users is that delivering cycles is simpler than delivering data to those cycles. In this project we show how we i…
Exploring Erasure Coding Techniques for High Availability of Intermediate Data
Zhe Zhang, Brian Bockelman, Derek Weitzel +1
Scientific computing workflows generate enormous distributed data that is short-lived, yet critical for job completion time. This class of data is called intermediate data. A commo…
Trua: Efficient Task Replication for Flexible User-defined Availability in Scientific Grids
Zhe Zhang, Brian Bockelman, Derek Weitzel +3
Failure is inevitable in scientific computing. As scientific applications and facilities increase their scales over the last decades, finding the root cause of a failure can be ver…
Speeding HEP Analysis with ROOT Bulk I/O
Brian Bockelman, Zhe Zhang, Oksana Shadura
Distinct HEP workflows have distinct I/O needs; while ROOT I/O excels at serializing complex C++ objects common to reconstruction, analysis workflows typically have simpler objects…
SciTokens: Demonstrating Capability-Based Access to Remote Scientific Data using HTCondor
Alex Withers, Brian Bockelman, Derek Weitzel +7
The management of security credentials (e.g., passwords, secret keys) for computational science workflows is a burden for scientists and information security officers. Problems wit…
StashCache: A Distributed Caching Federation for the Open Science Grid
Derek Weitzel, Marian Zvada, Ilija Vukotic +6
Data distribution for opportunistic users is challenging as they neither own the computing resources they are using or any nearby storage. Users are motivated to use opportunistic…
Rucio - Scientific data management
Martin Barisits, Thomas Beermann, Frank Berghaus +27
Rucio is an open-source software framework that provides scientific collaborations with the functionality to organize, manage, and access their data at scale. The data can be distr…
Discovering Job Preemptions in the Open Science Grid
Zhe Zhang, Brian Bockelman, Derek Weitzel +1
The Open Science Grid(OSG) is a world-wide computing system which facilitates distributed computing for scientific research. It can distribute a computationally intensive job to ge…
SciTokens: Capability-Based Secure Access to Remote Scientific Data
Alex Withers, Brian Bockelman, Derek Weitzel +5
The management of security credentials (e.g., passwords, secret keys) for computational science workflows is a burden for scientists and information security officers. Problems wit…
Increasing Parallelism in the ROOT I/O Subsystem
Guilherme Amadio, Brian Bockelman, Philippe Canal +3
When processing large amounts of data, the rate at which reading and writing can take place is a critical factor. High energy physics data processing relying on ROOT is no exceptio…
Optimizing ROOT IO For Analysis
Brian Bockelman, Zhe Zhang, Jim Pivarski
The ROOT I/O (RIO) subsystem is foundational to most HEP experiments - it provides a file format, a set of APIs/semantics, and a reference implementation in C++. It is often found…
HEPCloud, a New Paradigm for HEP Facilities: CMS Amazon Web Services Investigation
Burt Holzman, Lothar A. T. Bauerdick, Brian Bockelman +15
Historically, high energy physics computing has been performed on large purpose-built computing systems. These began as single-site compute facilities, but have evolved into the di…
Data Access for LIGO on the OSG
Derek Weitzel, Brian Bockelman, Duncan A. Brown +3
During 2015 and 2016, the Laser Interferometer Gravitational-Wave Observatory (LIGO) conducted a three-month observing campaign. These observations delivered the first direct detec…
Exploring compression techniques for ROOT IO
Zhe Zhang, Brian Bockelman
ROOT provides an flexible format used throughout the HEP community. The number of use cases - from an archival data format to end-stage analysis - has required a number of tradeoff…
Designing Computing System Architecture and Models for the HL-LHC era
Lothar Bauerdick, Brian Bockelman, Peter Elmer +3
This paper describes a programme to study the computing model in CMS after the next long shutdown near the end of the decade.
Heterogeneous High Throughput Scientific Computing with APM X-Gene and Intel Xeon Phi
David Abdurachmanov, Brian Bockelman, Peter Elmer +3
Electrical power requirements will be a constraint on the future growth of Distributed High Throughput Computing (DHTC) as used by High Energy Physics. Performance-per-watt is a cr…