250 Hits in 7.8 sec

Advances in the dataflow computational model

Walid A Najjar, Edward A Lee, Guang R Gao
1999 Parallel Computing  
This paper is a review of the current state-of-the-art in the applications of the data¯ow model of computation.  ...  Because it relies on a graph representation of programs, the strengths of the data¯ow model are very much the complements of those of the stored-program one.  ...  The last author thanks members of his Computer Architecture and Parallel Systems Laboratory (CAPSL) group, Department of Electrical and Computer Engineering, University of Delaware, for their valuable  ... 
doi:10.1016/s0167-8191(99)00070-8 fatcat:72oq72crzvho3cptrgvknxteea

High-Performance Computing: Clusters, Constellations, MPPs, and Future Directions

J. Dongarra, T. Sterling, H. Simon, E. Strohmaier
2005 Computing in science & engineering (Print)  
Admittedly, we could probably add other designations to this list: for example, the Earth Simulator would be m/s/v/v, the Tera MTA (multithreaded architecture) would be m/s/t/t, the SGI P E R S P E C T  ...  I V E S I N C O M P U T A T I O N A L S C I E N C E plex applications requires a judicious match of computer architecture, system software, and software development tools.  ...  He is a member of the AAAS, the ACM, and the IEEE. Contact him at  ... 
doi:10.1109/mcse.2005.34 fatcat:54tez4gdozeanke6jajaru6fwi

A Generic Framework for the Development of Geospatial Processing Pipelines on Clusters

Remi Cresson, Gabriel Hautreux
2016 IEEE Geoscience and Remote Sensing Letters  
This paper presents a generic framework for the development of RS images processing applications targeting cluster computing.  ...  It is based on common open sources libraries, and leverages the parallelization of a wide variety of image processing pipelines in a transparent way.  ...  This paper presents a generic framework for the development of RS images processing applications targeting cluster computing.  ... 
doi:10.1109/lgrs.2016.2605138 fatcat:glqo32oxrfglngdixzlwtqcxva

Multithreaded Xios Version Adapted To Many‐Core Architectures, And Supporting Grib2 Format (D2.4)

Yushan Wang, Yann Meurdesoif
2018 Zenodo  
With this motivation, we developed a portable multithreaded interface for XIOS based on the concept of MPI endpoints.  ...  The multithreaded version of XIOS was developed and then integrated and tested in the LMDZ model. The performance report of the multithreaded XIOS is detailed in this deliverable.  ...  For example, if we want to perform a put operation from endpoint 2 to the server, knowing that endpoint 2 is the thread 0 of process 1, the 0 th window (win A) of the server side should be used.  ... 
doi:10.5281/zenodo.1453853 fatcat:ekxnvqpxazep5m3nwfm3wdelru

Sens-ation: a service-oriented platform for developing sensor-based infrastructures

Tom Gross, Tareg Egla, Nicolai Marquardt
2006 International Journal of Internet Protocol Technology  
On a whole, Sens-ation facilitates the development allowing developers to concentrate on the semantics of their infrastructures, and to develop innovative concepts and implementations of context-aware  ...  The service-oriented paradigm of Sens-ation enables standardised communication within individual infrastructures, between infrastructures and their sensors, but also among distributed infrastructures.  ...  for contributing to the concepts and implementing the Sens-ation platform.  ... 
doi:10.1504/ijipt.2006.009741 fatcat:i6gddmw4lnhkzjqazjsgt5fz5i

A distributed web-based metacomputing environment [chapter]

Giovanni Aloisio, Massimo Cafaro, Roy Williams, Paul Messina
1997 Lecture Notes in Computer Science  
The aim of the paper is to demonstrate how remote-sensing data can be delivered using a web-browser as a front end, with distributed high performance computing services and replicated data archives.  ...  The architecture is designed to support both high and low-speed networking, both supercomputers and workstations, the result supporting both professional and casual users.  ...  ordinary, for a majority of scientists.  ... 
doi:10.1007/bfb0031620 fatcat:rokzuda46jf7hngfqfj7leomme

High Performance Computing in Satellite SAR Interferometry: A Critical Perspective

Pasquale Imperatore, Antonio Pepe, Eugenio Sansosti
2021 Remote Sensing  
In this paper, a perspective on the state-of-the-art of high performance computing (HPC) methodologies applied to spaceborne SAR interferometry (InSAR) is presented, and the different parallel algorithms  ...  Synthetic aperture radar (SAR) interferometry has rapidly evolved in the last decade and can be considered today as a mature technology, which incorporates computationally intensive and data-intensive  ...  Accordingly, developing scalable parallel code for larger-scale systems is not a trivial task. Methods for designing efficient parallel applications are beyond the scope of this paper.  ... 
doi:10.3390/rs13234756 fatcat:flsy4h75gzdvzgjpfx4xwivem4

Multithreading Based Parallel Processing for Image Geometric Coregistration in SAR Interferometry

Pasquale Imperatore, Eugenio Sansosti
2021 Remote Sensing  
The effectiveness of the developed multithreaded prototype solution in fully benefitting from the computing power offered by multicore processors has successfully been demonstrated via a suitable experimental  ...  This paper explores the possibility of addressing fast and accurate SAR image geometric coregistration, with sub-pixel accuracy and in the presence of a complex 3-D object scene, by exploiting the parallelism  ...  COSMO-SkyMed data have been provided by Italian Space Agency through the CEOS Volcano Demonstrator (https: // (accessed on 4 April 2021)).  ... 
doi:10.3390/rs13101963 fatcat:x5zea7rdfzdy3fuvbrd2sab5yu

Modern gyrokinetic particle-in-cell simulation of fusion plasmas on top supercomputers

Bei Wang, Stephane Ethier, William Tang, Khaled Z Ibrahim, Kamesh Madduri, Samuel Williams, Leonid Oliker
2017 The international journal of high performance computing applications  
In this paper, we describe the methods developed to build a highly parallelized PIC code across a broad range of supercomputer designs.  ...  Driven by chip-and system power limitations, the HPC community is moving to the era of multi-and many-core architectures with greatly increased thread and vector parallelism on shared memory processors  ...  Acknowledgments The authors would like to thank Rezaur Rahman from Intel Corporation for developing the low-level intrinsics on Intel Xeon Phi (MIC) for the GTC-P code. Dr. Wang and Dr.  ... 
doi:10.1177/1094342017712059 fatcat:76inm7ykqfbu7jdi2egzjtdjnm

The Implementation of ASSIST, an Environment for Parallel and Distributed Programming [chapter]

Marco Aldinucci, Sonia Campa, Pierpaolo Ciullo, Massimo Coppola, Silvia Magini, Paolo Pesciullesi, Laura Potiti, Roberto Ravazzolo, Massimo Torquati, Marco Vanneschi, Corrado Zoccolo
2003 Lecture Notes in Computer Science  
We describe the implementation of ASSIST, a programming environment for parallel and distributed programs.  ...  The compilation process and the structure of the run-time support of ASSIST are discussed with respect to the issues introduced by the new characteristics, presenting an analysis of the first test results  ...  Run-Time Architecture The current prototype of the ASSIST environment has been developed on a cluster of LINUX workstations, exploiting the communication and O.S. abstraction layers of the ACE library  ... 
doi:10.1007/978-3-540-45209-6_100 fatcat:nafzltg5o5h7bl3tkmcxzlb6su

Real-time computational needs of a multisensor feature-based range estimation method

Raymond E. Suorsa, Banavar Sridhar, Terrence W. Fong, Jake K. Aggarwal, Nagaraj Nandhakumar
1993 Sensor Fusion and Aerospace Applications  
This paper describes the computational needs of a parallel feature-based range-estimation method developed by NASA Ames.  ...  Issues of processing-element performance, load balancing, and data-ow bandwidth are addressed along with a performance review of two architectures on which the feature-based method has been implemented  ...  for their timely response to our request to benchmark a new Onyx machine.  ... 
doi:10.1117/12.155096 fatcat:abaekoaeerhm7de46tmi3fiqpe

Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures

Patrick R. Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Theo Mary
2019 ACM Transactions on Mathematical Software  
We illustrate the performance analysis of the BLR multifrontal factorization with numerical experiments on a large set of problems coming from a variety of real-life applications.  ...  In this paper, we present a multithreaded BLR factorization, and analyze its efficiency and scalability in shared-memory multicore environments.  ...  This work was performed using HPC resources from the LIP laboratory of Lyon.  ... 
doi:10.1145/3242094 fatcat:7ew2doicajgldgxnbl6gmwj3hu

The "MIND" scalable PIM architecture [chapter]

Thomas Sterling, Maciej Brodowicz
2005 Advances in Parallel Computing  
MIND is distinguished from other PIM architectures in that it incorporates mechanisms for efficient support of a global parallel execution model based on the semantics of message-driven multithreaded split-transaction  ...  This paper describes the major elements and operational methods of the MIND architecture.  ...  Whittaker of NASA/JPL for lending his unparalleled expertise in the field of logic and VLSI design, and countless hours spent in discussions leading to the refinement of the architectural components of  ... 
doi:10.1016/s0927-5452(05)80010-3 fatcat:m7w6wqjxjrg3zowstdubiknvne

A First Assessment of the P-SBAS DInSAR Algorithm Performances Within a Cloud Computing Environment

Ivana Zinno, Stefano Elefante, Lorenzo Mossucca, Claudio De Luca, Michele Manunta, Olivier Terzo, Riccardo Lanari, Francesco Casu
2015 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
This work represents a relevant step toward the challenging Earth Observation scenario focused on the joint exploitation of advanced DInSAR techniques and CC environments for the massive processing of  ...  As a further outcome, the performed analysis allows us to identify the major bottlenecks that can hamper the P-SBAS performances within a CC environment, in the perspective of processing very huge SAR  ...  ACKNOWLEDGMENT The authors would like to thank S. Guarino, F. Parisi, and M.C. Rasulo for their technical support.  ... 
doi:10.1109/jstars.2015.2426054 fatcat:td4p3bubhja3ld3paxaakb3yj4

An Implementation of Selected Image Processing for Single and Multiple Processors

Wafaa Ahmad Bazzi
2019 International Journal Of Engineering And Computer Science  
Image processing contributes on many of the technological advancements today. It is widely used by the developing institutes as well as a source of important data.  ...  One of the main things that are considered through this process would be the length of time on dealing with the application of different routines, on these images.  ...  of the distinguishing details.  ... 
doi:10.18535/ijecs/v8i06.4336 fatcat:kpuixd6ntrcr7btbynqxzqm7im
« Previous Showing results 1 — 15 out of 250 results