Search results for "processo"

Improving Collective I/O Performance Using Non-volatile Memory Devices

2016

Collective I/O is a parallel I/O technique designed to deliver high performance data access to scientific applications running on high-end computing clusters. In collective I/O, write performance is highly dependent upon the storage system response time and limited by the slowest writer. The storage system response time in conjunction with the need for global synchronisation, required during every round of data exchange and write, severely impacts collective I/O performance. Future Exascale systems will have an increasing number of processor cores, while the number of storage servers will remain relatively small. Therefore, the storage system concurrency level will further increase, worseni…

Bit-Parallel Approximate Pattern Matching on the Xeon Phi Coprocessor

2014

Bit-parallel pattern matching encodes calculated values in bit arrays. This approach gains its efficiency by performing multiple updates within a machine word. An important parameter is therefore the machine word size (e.g. 32 or 64 bits). With the increasing length of vector registers, the efficient mapping of bit-parallel pattern matching algorithms onto modern high performance computing architectures is becoming increasingly important. In this paper, we investigate an efficient implementation of the Wu-Manber approximate pattern matching algorithm on the Intel Xeon Phi coprocessor. This architecture features a 512-bit long vector processing unit (VPU) as well as a large number of process…

Design methods of multithreaded architectures for multicore microcontrollers

2011

The development of electronic technology today has allowed the implementation of complex architectures, which led to the emergence of multicore processors technology. Multicore architectures are built from superscalar and multithreaded processors. Integrating new technologies in embedded applications requires the development of multicore processors that can be integrated into a smaller area like a classic microcontroller. These processors must manage fewer resources and be able to manage multiple tasks simultaneously. In this paper we present a method of modeling, simulation and evaluation of two multithreaded architectures with limited resources, which could be integrated into embedded sys…

Spectral evolution simulation on leading multi-socket, multicore platforms

2011

Spectral evolution simulations based on the observed Very Long Baseline Interferometry (VLBI) radio-maps are of paramount importance to understand the nature of extragalactic objects in astrophysics. This work analyzes the performance and scaling of a spectral evolution algorithm on three leading multi-socket, multi-core architectures. We evaluate three parallel models with different levels of data-sharing: a sharing approach, a privatizing approach and a hybrid approach. Our experiments show that the data-privatizing model is reasonably efficient on medium scale multi-socket, multi-core systems (up to 48 cores) while regardless algorithmic and scheduling optimizations, sharing approach is …

SWAPHI-LS: Smith-Waterman Algorithm on Xeon Phi coprocessors for Long DNA Sequences

2014

As an optimal method for sequence alignment, the Smith-Waterman (SW) algorithm is widely used. Unfortunately, this algorithm is computationally demanding, especially for long sequences. This has motivated the investigation of its acceleration on a variety of high-performance computing platforms. However, most work in the literature is only suitable for short sequences. In this paper, we present SWAPHI-LS, the first parallel SW algorithm exploiting emerging Xeon Phi coprocessors to accelerate the alignment of long DNA sequences. In SWAPHI-LS, we have investigated three parallelization approaches (naive, tiled, and distributed) in order to deeply explore the inherent parallelism within Xeon P…

Community-driven computational biology with Debian Linux

2011

Background The Open Source movement and its technologies are popular in the bioinformatics community because they provide freely available tools and resources for research. In order to feed the steady demand for updates on software and associated data, a service infrastructure is required for sharing and providing these tools to heterogeneous computing environments. Results The Debian Med initiative provides ready and coherent software packages for medical informatics and bioinformatics. These packages can be used together in Taverna workflows via the UseCase plugin to manage execution on local or remote machines. If such packages are available in cloud computing environments, the underlyin…

L'interruzione del processo dopo l'udienza di precisazione delle conclusioni

2007

Iran

2011

L’articolo esamina il processo legislativo nell’ordinamento iraniano. Seguendo un modello previamente determinato che agevola la comparazione con gli altri ordinamenti presi in esame all’interno del volume, si è esaminata la forma di governo, la composizione e le funzioni del Parlamento, il sistema delle fonti, le problematiche inerenti alla sovranità divina e popolare, il procedimento legislativo ordinario e il procedimento di revisione costituzionale. The article analyses the legislative procedure in the Islamic Republic of Iran. A particular attention is given to the form of State, the composition and the functions of the Parliament, the sources of law, the relationship between the divin…

IL DANNO DA IRRAGIONEVOLE DURATA DEL PROCESSO

2009

Il lavoro, svolto in forma sostanzialmente monografica, si preoccupa di indagare circa i livelli di attuazione che gli ordinamenti italiano ed inglese hanno dato all’art. 6 della Convenzione europea per la salvaguardia dei diritti dell’Uomo del 1950 in materia di durata ragionevole del processo. In particolare si passano criticamente in rassegna gli strumenti normativi predisposti in Italia e in Inghilterra, soprattutto mettendo in rilievo le differenti propensioni dei legislatori nazionali. Ed infatti, le fasi iniziali di vita in Italia dell’istituto della ragionevole durata del processo sono state più travagliate ed incerte a causa della originaria riluttanza giurisprudenziale a conferire…

Israele

2011

L’articolo analizza il processo legislativo nell’ordinamento israeliano. Seguendo un modello previamente determinato, che consente di svolgere più agevolmente una comparazione con gli altri ordinamenti esaminati nel volume, si è presa in considerazione la la forma di governo, il ruolo del Parlamento e la sua organizzazione, il sistema delle fonti, il procedimento legislativo ordinario, i procedimenti legislativi speciali, la legittimità e la qualità della produzione legislativa. The article analyses the legislative procedure in Israel. The study is carried throughout a specific model that helps to compare the different legislative procedures in other countries examined in the specific volum…