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Displaying 1-8 out of 8 total
Latency Hiding File I/O for Blue Gene Systems
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Florin Isaila, Javier Garcia Blas, Jesus Carretero, Robert Latham, Samuel Lang, Robert Ross
Issue Date:May 2009
pp. 212-219
This paper presents the design and implementation of a novel file I/O solution for Blue Gene systems. We propose a hierarchical I/O cache architecture based on open source software. Our solution is based on an asynchronous data staging strategy, which hide...
 
AHPIOS: An MPI-Based Ad Hoc Parallel I/O System
Found in: Parallel and Distributed Systems, International Conference on
By Florin Isaila, Javier Garcia Blas, Jesus Carretero, Wei-keng Liao, Alok Choudhary
Issue Date:December 2008
pp. 253-260
This paper presents the design and implementation of a portable ad-hoc parallel I/O system (AHPIOS). AHPIOS virtualizes on-demand available distributed storage resources and allows the files to be striped over several storage devices. Additionally, the des...
 
View-Based Collective I/O for MPI-IO
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Javier GarcĂ­a Blas, Florin Isaila, David E. Singh, J. Carretero
Issue Date:May 2008
pp. 409-416
This paper presents the design and implementation of a new file system independent collective I/O optimization based on file views: view-based collective I/O. View-based collective I/O has been implemented and evaluated inside ROMIO implementation of MPI-I...
 
Design and Evaluation of Multiple-Level Data Staging for Blue Gene Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Florin Isaila,Javier Garcia Blas,Jesus Carretero,Robert Latham,Robert Ross
Issue Date:June 2011
pp. 946-959
Parallel applications currently suffer from a significant imbalance between computational power and available I/O bandwidth. Additionally, the hierarchical organization of current Petascale systems contributes to an increase of the I/O subsystem latency. I...
 
CONDESA: A Framework for Controlling Data Distribution on Elastic Server Architectures
Found in: IEEE Transactions on Parallel and Distributed Systems
By Juan M. Tirado,Daniel Higuero,Javier Garcia Blas,Florin Isaila,Jesus Carretero
Issue Date:August 2014
pp. 2010-2019
Applications running in today's data centers show high workload variability. While seasonal patterns, trends and expected events may help building proactive resource allocation policies, this approach has to be complemented with adaptive strategies which s...
 
Evaluation of the Feasibility of Making Large-Scale X-Ray Tomography Reconstructions on Clouds
Found in: 2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid)
By Estefania Serrano,Guzman Bermejo,Javier Garcia Blas,Jesus Carretero
Issue Date:May 2014
pp. 748-754
This work focuses on the evaluation of the suitability of Mangoose++, a medical image application for reconstruction of 3D volumes, by means of Cloud Computing. Due to the increasing resolution of panel detectors in computed tomography and the need of lowe...
 
A hierarchical parallel storage system based on distributed memory for large scale systems
Found in: Proceedings of the 20th European MPI Users' Group Meeting (EuroMPI '13)
By Francisco Rodrigo Duro, Javier Garcia Blas, Jesus Carretero
Issue Date:September 2013
pp. 139-140
This paper presents the design and implementation of a storage system for high performance systems based on a multiple level I/O caching architecture. The solution relies on Memcached as a parallel storage system, preserving its powerful capacities such as...
     
Parallel implementation of a X-ray tomography reconstruction algorithm based on MPI and CUDA
Found in: Proceedings of the 20th European MPI Users' Group Meeting (EuroMPI '13)
By Ernesto Liria, Florin Isaila, Javier Garcia Blas, Jesus Carretero, Manuel Desco, Monica Abella
Issue Date:September 2013
pp. 217-222
Most small-animal X-ray computed tomography (CT) scanners are based on cone-beam geometry with a flat-panel detector orbiting in a circular trajectory. Image reconstruction in these systems is usually performed by approximate methods based on the algorithm...
     
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