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Sequence alignment is an essential, but compute-intensive application in Bioinformatics. Hardware implementation speeds up this application by exploiting its inherent parallelism, where the performance of the hardware depends on its capability to align long sequences. In hardware terms, the length of a biological query sequence that can be aligned against a database sequence depends on the number...
While GPGPU programming offers faster computation of highly parallelized code, the memory bandwidth between the system and the GPU can create a bottleneck that reduces the potential gains. CUDA is a prominent GPGPU API which can transfer data to and from system code, and which can also access data used by 3D rendering APIs. In an application that relies on both GPU programming APIs to accelerate 3D...
Biomedical research increasingly depends on access to and analysis of distributed medical and biomedical data. In biomedical research, datasets are often collected at multiple locations, as it is difficult to recruit required patient populations at one location. The sensitive nature of these datasets leads to a need for secure sharing methods that can work with distributed databases and image archives...
The performance of remote paging on grids is strongly dominated by the network latency of data transfer. However, the memory clients in the previously proposed remote paging systems do not always put/get pages to/from the memory servers with the least network latency. Consequently, the communication cost of remote paging has not been reduced effectively. To address this problem, we propose an adaptively...
Ontology Model and Semantic Link Network (SLN) are two important semantic data models in Semantic Web. Ontology Model can describe network resource in concept space, while SLN can describe various links and relations between network resources. Combination of Ontology Model and SLN can help to improve the effect of network resource retrieval, but data transfer and exchange between ontological knowledge...
Green Home System is developing under three major concept such as passive, active house and integration technology. Normally HEMS(Home Energy Management System) is active and integration technique merging IT and Energy technology. But currently most HEMS has only smart metering device and interact with Electric Power Supplier. Proposed Green HEMS provides low-powered wireless energy monitoring and...
Strong scaling of scientific applications on parallel architectures is increasingly limited by communication latency. This paper describes the techniques used to mitigate latency in Anton, a massively parallel special-purpose machine that accelerates molecular dynamics (MD) simulations by orders of magnitude compared with the previous state of the art. Achieving this speedup required a combination...
This paper investigates the problem of Partitioning Skew in MapReduce-based system. Our studies with Hadoop, a widely used MapReduce implementation, demonstrate that the presence of partitioning skew causes a huge amount of data transfer during the shuffle phase and leads to significant unfairness on the reduce input among different data nodes. As a result, the applications experience performance...
In this paper, we propose an extension to our previous MVA based methodology for estimating performance of transactions executed on multi-server systems to transactions involving variable data transfers. The extension is based on the characterization of data transfers between servers under zero-load conditions, and a curve fitting step to capture server message processing time dependency with the...
Unlike traditional routing schemes that route all traffic along a single path, multipath routing strategies split the traffic among several paths in order to ease congestion. It has been widely recognized that multipath routing can be fundamentally more efficient than the traditional approach of routing along single paths. aiming at the increasing network traffic and the deficity that the former Ant...
The integrality and security of data transfer are very important issues in cloud computing. In this paper, we have review a digital signature scheme with fault tolerance based on the RSA cryptosystem proposed by Zhang in 1999. The proposed scheme can efficiently keep the confidentiality of the transferred message. Furthermore, the scheme is able to detect and correct the error occurring in the computation...
In the present scenario, mobile phones, laptops and PDAs have become the elixir of human needs. Almost everyone today has a mobile phone and Bluetooth has already become a standard inclusion on even the most basic mobile phones, student laptops and PDAs. Data transfer through Bluetooth among the handheld devices is common and popular. Bluetooth establishes links in a more convenient manner to facilitate...
The article provides the general overview and base proposal of solution in the area of controlling the IT resources within the company. It points out some common deficits of integrating systems and running data transfers. Lack of functionality in some large systems is supplemented by using interim database and proposed SQL processing prior to data loads. Interim database is also used for storing the...
Data integrity in wireless sensor network is very important. Recent research has indicated that, due to its conservative CSMA/CA channel access scheme and RTS/CTS mechanism, it is not suitable to achieve data integrity in wireless networks. In our paper we propose a mechanism to achieve information completeness. We address this challenge by applying a search information model that associates information...
Worldwide health scientists are producing, accessing, analyzing, integrating, and storing massive amounts of digital medical data daily, through observation, experimentation, and simulation. If we were able to effectively transfer and integrate data from all possible resources, then a deeper understanding of all these data sets and better exposed knowledge, along with appropriate insights and actions,...
Applications can be submitted as jobs in grid. Grid jobs usually comprise the scenarios of file stage-in, execution and file stage-out. These scenarios always run in batch mode. It leads to the waiting of the computational resource for data transfer and limits the performance of the grid application, especially when the application is data/communication intensive. Utilizing the file sharing function...
Networks-on-Chip (NoC) allow several data transfers to occur in parallel and are indeed the communication infra-structure of future hundred-cores Systems-on-Chip (SoCs). However, if specialized modules are sending data at full speed to the NoC, Quality of Service (QoS) can be no longer guaranteed. This work presents a multi-layer mesh NoC approach to improve the QoS of such communication hungry SoCs...
A parallel factorization of a sparse multilevel representation of the EFIE impedance matrix is discussed. A nonblocking asynchronous communication protocol is used to transfer data between processors. Numerical examples demonstrate the performance and accuracy of the factorization on a distributed memory parallel cluster.
In the BitTorrent peer-to-peer file sharing protocol, it is observed that when a group of peers known to each other (due to geographical proximity or otherwise) are aiming for the same file, it is downloaded by a single peer and then shared within the group or it is downloaded individually. This is an inefficient approach as the fidelity rests on one peer or all peers (promoting redundancy), thus...
The paper based on a Membership Card Management System, describes two implementations of data transfer which follows the Model-View-Controller software design pattern. The first method is the data transfer using Ajax technology in XML pattern, and another uses cache as the temple container to transfer data. The core of the paper analyzes concretely how those two methods implement between different...
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