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检索条件"任意字段=PDSE 2000: International Symposium on Software Engineering for Parallel and Distributed Systems"

共 944 条记录，以下是61-70 订阅

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Optimal Batch Plants Design on parallel systems: A Comparative Study 33

Optimal Batch Plants Design on Parallel Systems: A Comparati...

引用

33rd IEEE international parallel and distributed Processing symposium (IPDPS)

作者： Borisenko, Andrey Gorlatch, Sergei Tambov State Tech Univ Tambov Russia Univ Munster Munster Germany

ISBN: (纸本)9781538655559

We report a comparative study on the development of high-performance software for solving the problem of optimal design of multiproduct batch plants on modern parallel systems. We analyze two main algorithmic approaches to optimization - branch-and-bound and metaheuristic-based - and we develop and compare their parallel implementations on a variety of parallel architectures: multi-core CPU, GPU, and clusters. Our experiments on a real-world case study - optimization of chemical-engineering systems - demonstrate the trade-offs between the run time performance and the quality of solutions achieved by different algorithms on various parallel architectures.

关键词： combinatorial optimization multi-product batch plant design branch-and-bound metaheuristics GPU computing

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Development of parallel CFD Applications on distributed Memory with Chapel

Development of Parallel CFD Applications on Distributed Memo...

引用

IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Matthieu Parenteau Simon Bourgault-Cote Frederic Plante Eric Laurendeau Department of Mechanical Engineering Polytechnique Montreal Montreal Canada

ISBN: (数字)9781728174457

ISBN: (纸本)9781728174570

Traditionally, Computational Fluid Dynamics (CFD) software uses Message Passing Interface (MPI) to handle the parallelism over distributed memory systems. For a new developer, such as a student or a new employee, the barrier of entry can be high and more training is required for each particular software package, which slows down the research process on actual science. The Chapel programming language offers an interesting alternative for research and development of CFD *** this paper, the developments of two CFD applications are presented: the first one as an experiment by re-writing a 2D structured flow solver and the second one as writing from scratch a research 3D unstructured multi-physics simulation software. Details are given on both applications with emphasis on the Chapel features which were used positively in the code design, in particular to improve flexibility and extend to distributed memory. Some performance pitfalls are discussed with solutions to avoid *** performance of the unstructured software is then studied and compared to a traditional open-source CFD software package programmed in C++ with MPI for communication (SU2). The results show that our Chapel implementation achieves performances similar to other CFD software written in C and C++, thus confirming that Chapel is a viable language for high-performance CFD applications.

关键词： Computational fluid dynamics software parallel processing Reactive power Two dimensional displays C++ languages Programming

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Considerations for a distributed GraphBLAS API

Considerations for a Distributed GraphBLAS API

引用

IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Benjamin Brock Aydin Buluç Timothy G. Mattson Scott McMillan José E. Moreira Roger Pearce Oguz Selvitopi Trevor Steil EECS Department University of California Berkeley CA Computational Research Department Lawrence Berkeley National Laboratory Berkeley CA Parallel Computing Labs Intel Hillsboro OR Software Engineering Institute Carnegie Mellon University Pittsburgh PA IBM Thomas J. Watson Research Center Yorktown Heights NY Center for Applied Scientific Computing Lawrence Livermore National Laboratory Livermore CA School of Mathematics University of Minnesota Minneapolis MN

ISBN: (数字)9781728174457

ISBN: (纸本)9781728174570

The GraphBLAS emerged from an international effort to standardize linear-algebraic building blocks for computing on graphs and graph-structured data. The GraphBLAS is expressed as a C API and has paved the way for multiple implementations. The GraphBLAS C API, however, does not define how distributed-memory parallelism should be handled. This paper reviews various approaches for a GraphBLAS API for distributed computing. This work is guided by our experience with existing distributed memory libraries. Our goal for this paper is to highlight the pros and cons of different approaches rather than to advocate for one particular choice.

关键词： Context parallel processing Libraries Data structures Task analysis Message systems Electronics packaging

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Better Late Than Never: An n-Variant Framework of Verification for Java Source Code on CPU x GPU Hybrid Platform 19

Better Late Than Never: An n-Variant Framework of Verificati...

引用

28th international symposium on High-Performance parallel and distributed Computing (ACM HPDC)

作者： Duan, Jun Hamlen, Kevin W. Ferrell, Benjamin Univ Texas Dallas Richardson TX 75083 USA

ISBN: (纸本)9781450366700

A method of detecting malicious intrusions and runtime faults in software is proposed, which replicates untrusted computations onto two diverse but often co-located instruction architectures: CPU and GPU. Divergence between the replicated computations signals an intrusion or fault, such as a zero-day exploit. A prototype implementation for Java demonstrates that the approach is realizable in practice, and can successfully detect exploitation of Java VM and runtime system vulnerabilities even when the vulnerabilities are not known in advance to defenders. To achieve acceptable performance, it is shown that GPU parallelism can be leveraged to rapidly validate CPU computations that would otherwise exhibit unacceptable performance if executed on GPU alone. The resulting system detects anomalies in CPU computations on a short delay, during which the GPU replica quickly validates many CPU computation fragments in parallel in order to catch up with the CPU computation. Significant differences between the CPU and GPU computational models lead to high natural diversity between the replicas, affording detection of large exploit classes without laborious manual diversification of the code.

关键词： n-variant Java software reliability intrusion detection software exploit detection software engineering

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Improving HLS Generated Accelerators Through Relaxed Memory Access Scheduling

Improving HLS Generated Accelerators Through Relaxed Memory ...

引用

IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Johanna Rohde Karsten Müller Christian Hochberger Department for Electrical Engineering and Information Technology Computer Systems Group TU Darmstadt

ISBN: (数字)9781728174457

ISBN: (纸本)9781728174570

High-Level-Synthesis can be used to generate hardware accelerators for compute intense software parts (so called kernels). For meaningful acceleration, such kernels should be able to autonomously access the memory. Unfortunately, such memory accesses can constitute dependences (e.g. writing an array before reading from it) leading to bottlenecks. The analysis of potential conflicts of memory accesses is often difficult and in many cases not even possible. In order to improve the scheduling of memory accesses, we propose a novel methodology to fully automatically place bypasses and squashes into the data flow graph that is used to generate the hardware accelerator. Evaluating our approach with the Powerstone benchmark suite, we can show that execution time is reduced on average by 6.5%.

关键词： Tools Hardware Runtime Kernel Benchmark testing Schedules Pipeline processing

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Node-Aware Stencil Communication for Heterogeneous Supercomputers

Node-Aware Stencil Communication for Heterogeneous Supercomp...

引用

IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Carl Pearson Mert Hidayetoğlu Mohammad Almasri Omer Anjum I-Hsin Chung Jinjun Xiong Wen-Mei W. Hwu Electrical and Computer Engineering Department University of Illinois at Urbana-Champaign Urbana IL IBM T. J. Watson Research Yorktown Heights NY

ISBN: (数字)9781728174457

ISBN: (纸本)9781728174570

High-performance distributed computing systems increasingly feature nodes that have multiple CPU sockets and multiple GPUs. The communication bandwidth between these components is non-uniform. Furthermore, these systems can expose different communication capabilities between these components. For communication-heavy applications, optimally using these capabilities is challenging and essential for performance. Bespoke codes with optimized communication may be non-portable across run-time/software/hardware configurations, and existing stencil frameworks neglect optimized communication. This work presents node-aware approaches for automatic data placement and communication implementation for 3D stencil codes on multi-GPU nodes with non-homogeneous communication performance and capabilities. Benchmarking results in the Summit system show that choices in placement can result in a 20% improvement in single-node exchange, and communication specialization can yield a further 6x improvement in exchange time in a single node, and a 16% improvement at 1536 GPUs.

关键词： Graphics processing units Indexes Three-dimensional displays Peer-to-peer computing Libraries Bandwidth Two dimensional displays

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The AMPERE Project: : A Model-driven development framework for highly parallel and EneRgy-Efficient computation supporting multi-criteria optimization

The AMPERE Project: : A Model-driven development framework f...

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international symposium on Object-Oriented Real-Time distributed Computing

作者： Eduardo Quiñones Sara Royuela Claudio Scordino Paolo Gai Luis Miguel Pinho Luis Nogueira Jan Rollo Tommaso Cucinotta Alessandro Biondi Arne Hamann Dirk Ziegenbein Hadi Saoud Romain Soulat Björn Forsberg Luca Benini Gianluca Mando Luigi Rucher Barcelona Supercomputing Center Barcelona Spain Evidence S.r.l. Pisa Italy Instituto Superior de Engenharia do Porto Porto Portugal Sysgo Prague Czech Republic Scuola Superiore Sant’Anna Pisa Italy Bosch Stuttgart Germany Thales Research & Technology Palaiseau France Thales Italy Florence Italy Eidgenössische Technische Hochschule Zürich Zurich Switzerland

ISBN: (数字)9781728169583

ISBN: (纸本)9781728169590

The high-performance requirements needed to implement the most advanced functionalities of current and future Cyber-Physical systems (CPSs) are challenging the development processes of CPSs. On one side, CPSs rely on model-driven engineering (MDE) to satisfy the non-functional constraints and to ensure a smooth and safe integration of new features. On the other side, the use of complex parallel and heterogeneous embedded processor architectures becomes mandatory to cope with the performance requirements. In this regard, parallel programming models, such as OpenMP or CUDA, are a fundamental brick to fully exploit the performance capabilities of these architectures. However, parallel programming models are not compatible with current MDE approaches, creating a gap between the MDE used to develop CPSs and the parallel programming models supported by novel and future embedded *** AMPERE project will bridge this gap by implementing a novel software architecture for the development of advanced CPSs. To do so, the proposed software architecture will be capable of capturing the definition of the components and communications described in the MDE framework, together with the non-functional properties, and transform it into key parallel constructs present in current parallel models, which may require extensions. These features will allow for making an efficient use of underlying parallel and heterogeneous architectures, while ensuring compliance with non-functional requirements, including those on real-time performance of the system.

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TOSS: A Topology-based Scheduler for Storm C1usters

TOSS: A Topology-based Scheduler for Storm C1usters

引用

IEEE international symposium on parallel and distributed Processing Workshops and Phd Forum (IPDPSW)

作者： Yi Zhou Yangyang Liu Chaowei Zhang Xiaopu Peng Xiao Oin TSYS School of Computer Science Columbus State University 4225 University Avenue GA Department of Computer Science and Software Engineering Auburn University Auburn AL USA

ISBN: (数字)9781728174457

ISBN: (纸本)9781728174570

Nowadays, our world is undergoing profound challenges in processing a massive amount of data. A handful of computation technologies emerge as a promising computation platform for data intensive processing. Apache Storm is an outstanding open-source platform for largescale streaming computation, which is widely used in the industry (eg., Twitter). Performance bottleneck problems encountered in streaming data applications motivate us to investigate scheduling issues in Storm. A key aspect of tuning Storm performance is to decide how to deploy components of a storm application among all available nodes in a cluster. Driven by our observations, we design and implement a new scheduling strategy called TOSS based on application structures. Compared to the existing round-robin scheduler, TOSS not only judiciously handles tight-bind components, but also balances workloads by introducing a self-tuning mechanism in the deployment stage. We conduct experiments by applying two popular and distinct topologies to evaluate the performance of TOSS. The experimental results suggest that TOSS significantly boost the performance of the round-robin scheduler. ln particular, TOSS substantially improves the system throughput of Storm while shortens latency of Storm applications.

关键词： Storms Topology Processor scheduling Real-time systems Resource management Throughput Task analysis

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software-Based Buffering of Associative Operations on Random Memory Addresses

Software-Based Buffering of Associative Operations on Random...

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international symposium on parallel and distributed Processing (IPDPS)

作者： Matthias Hauck Marcus Paradies Holger Fröning Institute of Computer Engineering Ruprecht-Karls University of Heidelberg Germany DLR

An important concept for indivisible updates in parallel computing are atomic operations. For most architectures, they also provide ordering guarantees, which in practice can hurt performance. For associative and commutative updates, in this paper we present software buffering techniques that overcome the problem of ordering by combining multiple updates in a temporary buffer and by prefetching addresses before updating them. As a result, our buffering techniques reduce contention and avoid unnecessary ordering constraints, in order to increase the amount of memory parallelism. We evaluate our techniques in different scenarios, including applications like histogram and graph computations, and reason about the applicability for standard systems and multi-socket systems.

关键词： Prefetching parallel processing Data structures Hardware Memory management

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DM-HEOM: A Portable and Scalable Solver-Framework for the Hierarchical Equations of Motion 32

DM-HEOM: A Portable and Scalable Solver-Framework for the Hi...

引用

32nd IEEE international parallel and distributed Processing symposium (IPDPS)

作者： Noack, Matthias Reinefeld, Alexander Kramer, Tobias Steinke, Thomas Zuse Inst Berlin Berlin Germany

ISBN: (纸本)9781538655559

Computing the Hierarchical Equations of Motion (HEOM) is by itself a challenging problem, and so is writing portable production code that runs efficiently on a variety of architectures while scaling from PCs to supercomputers. We combined both challenges to push the boundaries of simulating quantum systems, and to evaluate and improve methodologies for scientific software engineering. Our contributions are threefold: We present the first distributed memory implementation of the HEOM method (DM-HEOM), we describe an interdisciplinary development workflow, and we provide guidelines and experiences for designing distributed, performance-portable HPC applications with MPI3, OpenCL and other state-of-the-art programming models. We evaluated the resulting code on multi- and many-core CPUs as well as GPUs, and demonstrate scalability on a Cray XC40 supercomputer for the PS I molecular light harvesting complex.

关键词： parallel Programming Portability Portable Performance OpenCL MPI Scientific Computing HEOM

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