Jose Maria Perez Menor - Academia.edu (original) (raw)

Papers by Jose Maria Perez Menor

Proceedings of the 2003 Acm Symposium on Applied Computing, 2003

Every storage platform intended to fit the requirements of the multimedia systems must incorporat... more Every storage platform intended to fit the requirements of the multimedia systems must incorporate a disk scheduling mechanism and a cache architecture that can handle their special needs. On the other hand, the general trend is to make integrated storage platforms that meet the requirements of deterministic applications, multimedia systems, and traditional best-effort applications altogether. In this paper we propose

First International Conference on Automated Production of Cross Media Content for Multi-Channel Distribution (AXMEDIS'05), 2005

CCGrid 2003. 3rd IEEE/ACM International Symposium on Cluster Computing and the Grid, 2003. Proceedings., 2003

Distributed filesystems are a typical solution in net-worked environments as clusters and grids. ... more Distributed filesystems are a typical solution in net-worked environments as clusters and grids. Parallel filesys-tems are a typical solution in order to reach high perfor-mance I/O distributed environment, but those filesystems have some limitations in heterogeneous storage ...

13th Euromicro Conference on Parallel, Distributed and Network-Based Processing, 2005

... Furthermore, we analyze the performance obtained in the fault tolerance models with a single ... more ... Furthermore, we analyze the performance obtained in the fault tolerance models with a single node failure (xpn-R5I-fail and xpn-R5O-fail). ... If one server fails during all tests, and is not repaired, we obtain results labeled as xpn-R5I-fail and xpn-R5O-fail. ...

Lecture Notes in Computer Science, 2002

Page 1. An Implementation of MPI-IO on Expand: A Parallel File System Based on NFS Servers Alejan... more Page 1. An Implementation of MPI-IO on Expand: A Parallel File System Based on NFS Servers Alejandro Calderón, Félix Garcıa, Jesús Carretero, Jose M. Pérez, and Javier Fernández Computer Architecture Group, Computer ...

36th Annual Simulation Symposium, 2003., 2003

Nowadays, multimedia systems are evolving towards integratedstorage platforms that meet the requi... more Nowadays, multimedia systems are evolving towards integratedstorage platforms that meet the requirements ofdeterministic applications, multimedia systems, and traditionalbest-effort applications altogether. These systemsmust incorporate a disk scheduling mechanism and a cachearchitecture that can handle the requirements of each kindof request while showing a good overall performance. Inthis paper a new interval caching strategy is proposed thatincludes several optimizations to the state

Lecture Notes in Computer Science, 2003

Abstract This paper describes a new parallel file system, called Expand (Expandable Parallel File... more Abstract This paper describes a new parallel file system, called Expand (Expandable Parallel File System) 1, that is based on NFS servers. Expand allows the transparent use of multiple NFS servers as a single file system. The different NFS servers are combined to ...

Lecture Notes in Computer Science, 2004

... Criticality Analysis José Daniel Garcıa, Jesús Carretero, José Marıa Pérez, and Félix Garcıa ... more ... Criticality Analysis José Daniel Garcıa, Jesús Carretero, José Marıa Pérez, and Félix Garcıa Computer Architecture Group, Universidad Carlos III de Madrid, Avda. ... (1996) 22. OREDA Consortium: Reliability Data Handbook. 4th edition edn. (2003) 23. ...

IEEE Transactions on Parallel and Distributed Systems, 2004

Reliability Engineering & System Safety, 2003

In 2000, the European Union founded a project named &amp;amp;amp;amp;amp;#x27;RAIL: Relia... more In 2000, the European Union founded a project named &amp;amp;amp;amp;amp;#x27;RAIL: Reliability centered maintenance approach for the infrastructure and logistics of railway operation&amp;amp;amp;amp;amp;#x27; aimed to study the application of Reliability centered maintenance (RCM) techniques to the railway infrastructure. In this ...

Eleventh Euromicro Conference on Parallel, Distributed and Network-Based Processing, 2003. Proceedings., 2003

Lecture Notes in Computer Science, 2005

Most works on Grids have taken an approach where the system is a mixture of clusters and other re... more Most works on Grids have taken an approach where the system is a mixture of clusters and other resources put together with the help of some services. But this solution is a simplistic one that tries to grow from the cluster perspective. We think that the Grid model should be different and near to the p2p model, especially in the I/O field where the network and the heterogeneity of the infrastructure play an important role. In this paper we present a model to organize the DataGrid Infrastructure using concepts as data phases and a p2p approach, in order to select the adequate working policies. These concepts allow the definition of a clearer model for our DataGrid Architecture than a mixture of resources. We present a model relying on the former concepts, their implementation in an I/O middleware for Grids, called GridExpand, and the evaluation of some of the concepts presented.

Software and Cyberinfrastructure for Astronomy II, 2012

ABSTRACT One of the main problems facing development teams working on instrument control systems ... more ABSTRACT One of the main problems facing development teams working on instrument control systems consists on the need to access mechanisms which are not available until well into the integration phase. The need to work with real hardware creates additional problems like, among others: certain faults cannot be tested due to the possibility of hardware damage, taking the system to the limit may shorten its operational lifespan and the full system may not be available during some periods due to maintenance and/or testing of individual components. These problems can be treated with the use of simulators and by applying software/hardware standards. Since information on the construction and performance of electro-mechanical systems is available at relatively early stages of the project, simulators are developed in advance (before the existence of the mechanism) or, if conventions and standards have been correctly followed, a previously developed simulator might be used. This article describes our experience in building software simulators and the main advantages we have identified, which are: the control software can be developed even in the absence of real hardware, critical tests can be prepared using the simulated systems, test system behavior for hardware failure situations that represent a risk of the real system, and the speed up of in house integration of the entire instrument. The use of simulators allows us to reduce development, testing and integration time.

Search all the public and authenticated articles in CiteULike. Include unauthenticated results to... more Search all the public and authenticated articles in CiteULike. Include unauthenticated results too (may include "spam") Enter a search phrase. You can also specify a CiteULike article id (123456),. a DOI (doi:10.1234/12345678). or a PubMed ID (pmid:12345678). ...

International Journal of High Performance Computing Applications, 2003

... of High Performance Computing Applications Félix Garcia-Carballeira, Alejandro Calderon, Jesu... more ... of High Performance Computing Applications Félix Garcia-Carballeira, Alejandro Calderon, Jesus Carretero, Javier Fernandez and Jose M. Perez The Design of ... Performance and band-width can be increased if data accesses are exploited in parallel (del Rosario et al., 1993). ...