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2013 National Conference on Parallel Computing Technologies (PARCOMPTECH)最新文献

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Performance analysis of Sun RPC Sun RPC的性能分析
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621405
Shwetabh Srivastava, Pranay Kumar Srivastava
RPC (Remote Procedure Call) is one of the ways for creating distributed client-server based applications. Sun RPC (ONC RPC) is old yet still popular implementation of RPC on UNIX based systems. However Sun RPC implementation suffers from poor performance despite having high speed hardware. In this paper we have given brief about Sun RPC, performance analysis of Sun RPC library and different possible optimization technique that can be applied for enhancing its performance.
RPC(远程过程调用)是创建基于分布式客户机-服务器的应用程序的方法之一。Sun RPC (ONC RPC)是一种在UNIX系统上实现RPC的老方法,但仍然很流行。然而,尽管拥有高速硬件,Sun RPC实现的性能却很差。本文简要介绍了Sun RPC,对Sun RPC库的性能进行了分析,并对提高其性能可能采用的各种优化技术进行了介绍。
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引用次数: 5
Three-dimensional LBM simulations of buoyancy-driven flow using graphics processing units 使用图形处理单元的浮力驱动流的三维LBM模拟
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621401
P. R. Redapangu, K. Sahu
Three-dimensional simulations of buoyancy-driven flow of two immiscible liquids are performed using lattice Boltzmann method (LBM) implemented on a graphics processing unit (GPU). Graphics processing unit is a new paradigm for computing fluid flows and has become more popular in the recent years. It is a powerful and convenient to use. LBM, which is an excellent alternative technique for fluid flow simulation, when implemented on GPUs gives a very high computational speed-up. Our present GPU based LBM solver gives a speed-up 25 times corresponding CPU based code.
利用图形处理单元(GPU)上的晶格玻尔兹曼方法(LBM)对两种非混相液体的浮力驱动流动进行了三维模拟。图形处理单元是计算流体流动的一种新范式,近年来得到越来越广泛的应用。它功能强大,使用方便。LBM是流体流动模拟的一种极好的替代技术,在gpu上实现时可以提供非常高的计算加速。我们目前基于GPU的LBM求解器的速度提高了25倍。
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引用次数: 2
High performance natural language processing services on the GARUDA grid 基于GARUDA网格的高性能自然语言处理服务
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621407
A. Tomar, Jahnavi Bodhankar, Pavan Kurariya, Pramod Anarase, Priyanka Jain, Anuradha Lele, H. Darbari, V. Bhavsar
The main objective of this paper is to introduce a high performance natural language processing (NLP) service to fulfill the needs of researchers and users in the area of natural language computing. We consider various NLP components developed at Applied Artificial Group of C-DAC Pune, and carry out parallelization on the GARUDA grid. We demonstrate that almost linear speedup is achieved with good efficiencies. With 32 processors, we have achieved a speedup of more than 19. This allows us to offer high performance scalable NLP Web services. Further, the GARUDA grid offers high availability.
本文的主要目的是介绍一种高性能的自然语言处理服务,以满足自然语言计算领域的研究人员和用户的需求。我们考虑了浦那C-DAC应用人工组开发的各种NLP组件,并在GARUDA网格上进行并行化。我们证明了几乎线性的加速是实现良好的效率。使用32个处理器,我们实现了超过19倍的加速。这使我们能够提供高性能可扩展的NLP Web服务。此外,GARUDA网格提供高可用性。
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引用次数: 5
Single and two phase flow CFD solvers using GPU 基于GPU的单、两相流CFD求解
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621398
S. R. Reddy, J. Sebastian, S. M. Miyyadad, R. Banerjee, N. Sivadasan
We present parallelization of single and two phase flow CFD solvers on a graphics processing unit (GPU) platform. Numerical simulations are done for some standard benchmark test cases for both single and two phase flow solvers. The formulation is based on finite volume method with SMAC algorithm on regular cartesian and collocated grid. Volume of fluid method in used for tracking the interface in multiphase flow solver. Pressure poisson equation is the most time consuming part of the solvers and hence this part is imported on to GPU. Pressure Poisson equation is solved by the conventional Gauss siedel method. Present day modern graphics hardware has several hundred cores which can be effectively used by CFD solvers to parallelize the computation. The results are validated against the reference solutions of the teat cases. A comparison is done between CPU and GPU simulations to estimate the computational acceleration and accuracy obtained.
在图形处理单元(GPU)平台上实现了单相流和两相流CFD求解器的并行化。对单相流和两相流求解器的一些标准基准测试用例进行了数值模拟。该公式基于正则笛卡儿网格和配置网格上的有限体积法和SMAC算法。在多相流求解器中,采用流体体积法对界面进行跟踪。压力泊松方程是求解器中最耗时的部分,因此这部分被导入到GPU中。压力泊松方程用传统的高斯西德尔法求解。目前,现代图形硬件有数百个核心,可以有效地用于CFD求解器并行计算。结果与两个案例的参考解进行了验证。通过CPU仿真和GPU仿真的比较,估计了所得到的计算速度和精度。
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引用次数: 0
A CUDA-enabled Hadoop cluster for fast distributed image processing 支持cuda的Hadoop集群,用于快速分布式图像处理
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621392
Ranajoy Malakar, N. Vydyanathan
Hadoop is a map-reduce based distributed processing framework, frequently used in the industry today, in areas of big data analysis, particularly text analysis. Graphics processing units (GPUs), on the other hand, are massively parallel platforms with attractive performance to price and power ratios, used extensively in the recent years for acceleration of data parallel computations. CUDA or Compute Unified Device Architecture is a C-based programming model proposed by NVIDIA for leveraging the parallel computing capabilities of the GPU for general purpose computations. This paper attempts to integrate CUDA acceleration into the Hadoop distributed processing framework to create a heterogeneous high performance image processing system. As Hadoop primarily is used for text analysis, this involves facilitating efficient image processing in Hadoop. Our experimental evaluations using a Adaboost based face detection algorithm indicate that CUDA-enabling a Hadoop cluster, even with low-end GPUs, can result in a 25% improvement in data processing throughput, indicating that an integration of these two technologies can help build scalable, high throughput, power and cost-efficient computing platforms.
Hadoop是一个基于map-reduce的分布式处理框架,在当今的行业中,在大数据分析领域,尤其是文本分析中经常使用。另一方面,图形处理单元(gpu)是具有具有吸引力的性能价格比和功率比的大规模并行平台,近年来被广泛用于加速数据并行计算。CUDA或计算统一设备架构是NVIDIA提出的基于c语言的编程模型,用于利用GPU的并行计算能力进行通用计算。本文试图将CUDA加速集成到Hadoop分布式处理框架中,创建一个异构的高性能图像处理系统。由于Hadoop主要用于文本分析,这涉及到在Hadoop中促进高效的图像处理。我们使用基于Adaboost的人脸检测算法进行的实验评估表明,启用cuda的Hadoop集群,即使使用低端gpu,也可以使数据处理吞吐量提高25%,这表明这两种技术的集成可以帮助构建可扩展,高吞吐量,功率和成本效益的计算平台。
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引用次数: 19
Open Source Job Submission Portal for Grid 网格的开源作业提交门户
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621395
B. Arunachalam, B. Kalasagar, Vineeth Simon Arackal, Prahlada Rao B.B.
Open Source Job Submission Portal (OSJSP) is for uniform access to Grid resources for the benefit of grid community. Users can submit jobs to Grid through the web-based Graphical User Interface. The ultimate aim of OSJSP is to provide portlet based portal for the researchers, students and academia to take care of their job and resource management issues in an efficient way. This portal adheres to basic grid system architecture by integrating gridsphere portal framework, Globus toolkit (Grid middleware), Gridway meta-scheduler and ingeniously developed portlets. These portlets are developed as per JSR 168 standard. OSJSP supports user authentication, authorization and job submission using x509 credentials. In this paper, we describe the importance of OSJSP, its implementation, features along with a related work.
开源作业提交门户(OSJSP)是为了网格社区的利益而统一访问网格资源。用户可以通过基于web的图形用户界面向Grid提交作业。OSJSP的最终目标是为研究人员、学生和学术界提供基于portlet的门户,以有效地处理他们的工作和资源管理问题。该门户通过集成gridsphere门户框架、Globus工具包(网格中间件)、Gridway元调度程序和巧妙开发的portlet,坚持基本的网格系统架构。这些portlet是按照JSR 168标准开发的。OSJSP支持使用x509凭证进行用户身份验证、授权和作业提交。在本文中,我们描述了OSJSP的重要性,它的实现,特点以及相关的工作。
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引用次数: 3
Data mining and wireless sensor network for groundnut pest/disease precision protection 花生病虫害精准防护的数据挖掘与无线传感器网络
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621399
A. Tripathy, J. Adinarayana, S. Merchant, U. Desai, S. Ninomiya, M. Hirafuji, T. Kiura
Recent technological developments allowed envisioning sensor devices with distributed ambient sensory network, which could be a potential technology for monitoring various natural phenomena (weather parameters, soil moisture, etc.) at micro level. As days more and more agricultural data are virtually being harvested along with the crops and are being collected/stored in databases, the same data can be used in productive decision making if appropriate data mining techniques are developed/applied. An experiment was conducted with four consecutive (Kharif and Rabi) agricultural seasons in a semi-arid region of India to understand the crop-weather-environment-pest/diseases relations using wireless sensory and field-level surveillance data on closely related and interdependent pest/disease dynamics of groundnut crop. Association rule mining and multivariate regression mining techniques/algorithms were designed/ developed/tailor-made to turn the data into useful information/ knowledge/relations/trends to know crop-weather-environment-pest/disease continuum. These findings have been used for development of prediction models (cumulative and non-cumulative) followed by a web based pest/disease decision support system, which will help the decision makers to take viable ameliorative measures.
最近的技术发展允许设想具有分布式环境传感网络的传感器设备,这可能是在微观层面监测各种自然现象(天气参数,土壤湿度等)的潜在技术。随着越来越多的农业数据与作物一起收获,并被收集/存储在数据库中,如果开发/应用适当的数据挖掘技术,这些数据可以用于生产决策。在印度半干旱地区进行了连续四个(Kharif和Rabi)农业季节的试验,利用无线传感和田间监测数据了解花生作物密切相关和相互依存的病虫害动态,以了解作物-天气-环境-病虫害之间的关系。设计/开发/定制关联规则挖掘和多元回归挖掘技术/算法,将数据转化为有用的信息/知识/关系/趋势,以了解作物-天气-环境-病虫害连续体。这些发现已用于开发预测模型(累积和非累积),然后是基于网络的病虫害决策支持系统,这将有助于决策者采取可行的改进措施。
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引用次数: 18
Monte Carlo simulation of microstructure evolution during thermo-mechanical rolling of steel using grid computing technology 用网格计算技术对钢热机械轧制过程中组织演变进行蒙特卡罗模拟
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621406
S. Hore, S. Das, S. Banerjee, S. Mukherjee
A Monte Carlo (MC) simulation methodology using high performance computing (HPC) has been proposed to characterize grain growth kinetics and recrystallisation phenomena during hot rolling of C-Mn and TRIP steels. The simulation framework comprises of mesoscale modelling of evolution of grain growth and microstructure incorporating the system energetics of grain boundary energy and stored energy which are essentially the driving force for the evolution process. An in-house MC computer code has been developed and implemented in the GARUDA grid. This facilitated achieving faster convergence of the MC algorithm for a given lattice structure. The simulated grain growth and microstructure evolution have been successfully validated with the published data. It is inferred that the MC simulation in conjunction with HPC grid capability can be a powerful tool to simulate material behaviour at mesoscopic scale during thermo-mechanical processing of materials.
提出了一种利用高性能计算(HPC)的蒙特卡罗(MC)模拟方法来表征C-Mn和TRIP钢热轧过程中的晶粒生长动力学和再结晶现象。模拟框架包括晶粒生长演化的中尺度模拟和微观结构模拟,其中晶界能和储存能的系统能量是演化过程的主要驱动力。内部MC计算机代码已经开发并在GARUDA网格中实现。这有助于实现对给定晶格结构的MC算法更快的收敛。模拟的晶粒生长和微观组织演变与已发表的数据相吻合。由此推断,MC模拟结合HPC网格能力可以成为模拟材料热机械加工过程中介观尺度材料行为的有力工具。
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引用次数: 2
Parallel implementation of machine translation using MPJ Express 用mpjexpress并行实现机器翻译
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621391
A. Tomar, Jahnavi Bodhankar, Pavan Kurariya, Pramod Anarase, Priyanka Jain, Anuradha Lele, H. Darbari, V. Bhavsar
In this paper we consider a machine translation (MT) system based on the tree adjoining grammar (TAG) formalism. We have successfully carried out sentence level parallelization and its parallel implementations on a multicore machine with varying number of cores and a computing cluster with multicore nodes. Since our code is in Java, we use MPJ Express for parallel implementations. We have carried out experiments with these parallel implementations and their performance is analysed.
本文研究了一种基于树相邻语法(TAG)形式主义的机器翻译系统。我们成功地在多核机和多核节点计算集群上进行了句子级并行化及其并行实现。由于我们的代码是用Java编写的,因此我们使用MPJ Express进行并行实现。我们对这些并行实现进行了实验,并对其性能进行了分析。
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引用次数: 5
A naive approach for cloud service discovery mechanism using ontology 一种使用本体的云服务发现机制的朴素方法
Pub Date : 2013-10-08 DOI: 10.1109/PARCOMPTECH.2013.6621403
V. S. K. Nagireddi, Shakti Mishra
Cloud computing is an emerging technology which provides computing infrastructure, platform (Operating System, development/testing), software applications and storage as a service on a pay-per-use basis. Although there exists enormous number of services as well as Cloud Service Providers (CSP), identifying the appropriate service as per user requirement has not been addressed yet. The problem has been addressed in the proposed work in two modules. The first module describes about the construction of ontology based on relationship between cloud services and their characteristics. In the second module, a generic based search engine has been developed to search the cloud services for user's requirement. It uses cloud ontology to process the query and fetch the results. The cloud services are ranked on the basis of the cloud service characteristics. The proposed model has been implemented using protégé tool for constructing ontology and packages (owlapi, sparqldl, Jena) for constructing search engine.
云计算是一种新兴技术,它提供计算基础设施、平台(操作系统、开发/测试)、软件应用程序和存储服务,按使用付费。尽管存在大量的服务和云服务提供商(CSP),但根据用户需求确定适当的服务尚未得到解决。该问题已在拟议的工作中分两个模块加以解决。第一个模块描述了基于云服务之间的关系及其特征的本体构建。在第二个模块中,开发了一个基于通用的搜索引擎,以满足用户对云服务的搜索需求。它使用云本体来处理查询并获取结果。根据云服务的特征对云服务进行排序。该模型使用proprosamugase工具构建本体,使用包(owlapi、sparqldl、Jena)构建搜索引擎。
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引用次数: 7
期刊
2013 National Conference on Parallel Computing Technologies (PARCOMPTECH)
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