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检索条件"任意字段=13th IEEE International Symposium on Parallel and Distributed Processing with Applications"

共 2570 条记录，以下是221-230 订阅

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PSO Optimized Design of Error Balanced Weight Stationary Systolic Array Architecture for CNN

PSO Optimized Design of Error Balanced Weight Stationary Sys...

引用

ieee international symposium on Quality Electronic Design

作者： Dantu Nandini Devi Gandi Ajay Kumar Bindu G Gowda Madhav Rao IIIT-Bangalore Bangalore India

ISBN: (数字)9798350309270

ISBN: (纸本)9798350309287

the utilization of hardware-designed approximate computing in Convolutional Neural Networks (CNNs) offers notable advantages, including accelerated performance, enhanced power efficiency, and a compact design footprint. Systolic Array (SA) architectures, optimized for matrix multiplication and convolution operations, have been extensively studied in the context of stand-alone image processing applications. However, their potential for CNN workloads has not been thoroughly assessed. SAs consist of an array of processing Elements (PEs) structured to perform product operations and accumulations. Incorporating inexact computing units in the SA introduces deviations from precise results, posing a challenge for sustaining hardware accelerator designs in CNN workloads. this paper presents a strategy for the optimal placement of both positive and negative error-distributed multipliers as PE elements to create an error-diluted SA structure. the proposed strategy to structure SA is evaluated for prewitt filter and three other filters extracted from first layer of *** paper introduces an optimization framework for selecting the most suitable PEs from a pool of positive and negative error-distributed multipliers, aiming to achieve a balance between hardware efficiency and image quality metrics. Furthermore, the framework and hardware design files are made available for further usage to the designers’ and researchers community.

关键词： Costs Computer architecture parallel processing Filtering algorithms Hardware Systolic arrays Delays

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Wideband Back-to-Back Folded Dipole Antenna for Millimeter-Wave Antenna-in-Package applications 13

Wideband Back-to-Back Folded Dipole Antenna for Millimeter-W...

引用

13th international symposium on Antennas, Propagation and EM theory, ISAPE 2021

作者： Li, Mingqi Ke, Zhiqi Yang, Nan Lu, Kai Long, Yunliang School of Electronics and Information Technology Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems Sun Yat-sen University Guangzhou510006 China

ISBN: (纸本)9781665418126

A back-to-back folded dipole antenna is presented in this paper. Comprised of a pair of two symmetric folded microstrip lines, this presented antenna is fed by parallel vias coupled from an open-ended grounded co-planar waveguide (GCPW), which is used to obtain desired differential current. To have a more symmetric radiation pattern, a back-to-back structure is employed. the idea was verified with a prototype designed for 60-GHz millimeter-wave applications. After optimization using ANSYS HFSS, the size of the antenna can be obtained as 1.0 x 1.1 mm2, namely 0.20 λ0x 0.22 λ0, where λ0 is the wavelength in the free space at 60 GHz. A wide 10-dB impedance wideband of 32.2% (52.9-73.3 GHz) can be obtained. Having the advantages of wide bandwidth and small size, this antenna is thus suitable for millimeter-wave antenna-in-package designs. © 2021 ieee.

关键词： Millimeter waves

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NUMA-aware CPU core allocation in cooperating dynamic applications 34

NUMA-aware CPU core allocation in cooperating dynamic applic...

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34th ieee international parallel and distributed processing symposium (IPDPS)

作者： Dokulil, Jiri Benkner, Siegfried Univ Vienna Fac Comp Sci Vienna Austria

ISBN: (纸本)9781728174457

Building large scientific applications by composing multiple smaller applications is one of current research directions. If the individual component applications are executed together on one compute node, we need to allocate resources to the components. While the operating system is already capable of doing this, it might be possible to get higher efficiency with a more specialized solution. Our goal is to describe opportunities and challenges faced by anyone designing such a system. We look into the specific case where a dynamic runtime system (or multiple such runtime systems) are used by the applications, since we believe the fundamental design of these runtime systems makes them especially suitable for the role. the ideas described in this paper are based on our prior experience in building such a runtime system and our early experiments with cooperating applications. We will focus on CPU core allocation and point out the importance of making non-uniform memory access architectures a prime consideration in such work.

关键词： resource arbitration CPU core allocation dynamic runtime systems cooperating applications NUMA

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Confidential Serverless Made Efficient with Plug-In Enclaves 21

Confidential Serverless Made Efficient with Plug-In Enclaves

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ACM/ieee 48th Annual international symposium on Computer Architecture (ISCA)

作者： Li, Mingyu Xia, Yubin Chen, Haibo Shanghai Jiao Tong Univ Inst Parallel & Distributed Syst Shanghai AI Lab Shanghai Peoples R China

ISBN: (纸本)9781665433334

Serverless computing has become a fact of life on modern clouds. A serverless function may process sensitive data from clients. Protecting such a function against untrusted clouds using hardware enclave is attractive for user privacy. In this work, we run existing serverless applications in SGX enclave, and observe that the performance degradation can be as high as 5.6 x to even 422.6 x . Our investigation identifies these slowdowns are related to architectural features, mainly from page-wise enclave initialization. Leveraging insights from our overhead analysis, we revisit SGX hardware design and make minimal modification to its enclave model. We extend SGX with a new primitive-region-wise plugin enclaves that can be mapped into existing enclaves to reuse attested common states amongst functions. By remapping plugin enclaves, an enclave allows in-situ processing to avoid expensive data movement in a function chain. Experiments show that our design reduces the enclave function latency by 94.74-99.57%, and boosts the autoscaling throughput by 19-179 x.

关键词： Intel SGX Serverless Confidential Computing

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A Compact Magnetoelectric Dipole Antenna for Millimeter-Wave Antenna-in-Package applications 13

A Compact Magnetoelectric Dipole Antenna for Millimeter-Wave...

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13th international symposium on Antennas, Propagation and EM theory, ISAPE 2021

作者： Ke, Zhiqi Li, Mingqi Yang, Nan Lu, Kai Long, Yunliang Sun Yat-sen University School of Electronics and Information Technology and Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems Guangzhou510006 China

ISBN: (纸本)9781665418126

A compact magnetoelectric (ME) dipole antenna is presented in this paper. By etching four parallel transverse slits in the surface of the antenna, the current path flowing along the patch could be lengthened, and therefore the antenna size can be reduced. To verify the design idea, a prototype was designed at 60 GHz. the antenna size was optimized to 1.67 times 1.57text{mm} parallel, namely 0.33 lambda paralleltimes 0.31lambda parallel, where lambda parallel is the wavelength in the free space at 60 GHz. A simulated 18.6% 10-dB impedance bandwidth can be obtained, from 54.7 to 65.9 GHz. the simulated peak gain is 7.4 dBi at 60 GHz. this proposed compact antenna can be a good candidate for millimeter-wave (mmW) Antenna-in-Package (A iP) designs with High-density interconnect (HDI) technology. © 2021 ieee.

关键词： Etching

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Development of parallel CFD applications on distributed Memory with Chapel 34

Development of Parallel CFD Applications on Distributed Memo...

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34th ieee international parallel and distributed processing symposium (IPDPS)

作者： Parenteau, Matthieu Bourgault-Cote, Simon Plante, Frederic Laurendeau, Eric Polytech Montreal Dept Mech Engn Montreal PQ Canada

ISBN: (纸本)9781728174457

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 applications. In 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 them. the 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： CFD RANS Chapel distributed memory HPC

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Solving the Container Explosion Problem for distributed High throughput Computing 34

Solving the Container Explosion Problem for Distributed High...

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34th ieee international parallel and distributed processing symposium (IPDPS)

作者： Shaffer, Tim Hazekamp, Nicholas Blomer, Jakob thain, Douglas Univ Notre Dame Notre Dame IN 46556 USA European Lab Particle Phys CERN Geneva Switzerland

ISBN: (纸本)9781728168760

Container technologies are seeing wider use at advanced computing facilities for managing highly complex applications that must execute at multiple sites. However, in a distributed high throughput computing setting, the unrestricted use of containers can result in the container explosion problem. If a new container image is generated for each variation of a job dispatched to a site, shared storage is soon exceeded. On the other hand, if a single large container image is used to meet multiple needs, the size of that container may become a problem for storage and transport. To address this problem, we observe that many containers have an internal structure generated by a structured package manager, and this information could be used to strategically combine and share container images. We develop LANDLORD to exploit this property and evaluate its performance through a combination of simulation studies and empirical measurement of high energy physics applications.

关键词： Containers

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Proceedings - 2020 ieee international symposium on parallel and distributed processing with applications, 2020 ieee international Conference on Big Data and Cloud Computing, 2020 ieee international symposium on Social Computing and Networking and 2020 ieee international Conference on Sustainable Computing and Communications, ISPA-BDCloud-SocialCom-SustainCom 2020

Proceedings - 2020 IEEE International Symposium on Parallel ...

引用

18th ieee international symposium on parallel and distributed processing with applications, 10th ieee international Conference on Big Data and Cloud Computing, 13th ieee international symposium on Social Computing and Networking and 10th ieee international Conference on Sustainable Computing and Communications, ISPA-BDCloud-SocialCom-SustainCom 2020

ISBN: (纸本)9781665414852

the proceedings contain 202 papers. the topics discussed include: multi-relational graph convolutional networks for skeleton-based action recognition;identifying the right person in social networks with double metaphone codes;a novel strong cache consistency mechanism in ICN based on role division and lease model;demystifying the largest live game streaming platform via black-box measurement;framework-agnostic optimization of repeated skewed joins at massive scale;remote procedure call optimization of big data systems based on data awareness;MCSEC: secure coded matrix multiplication scheme for edge computing with minimum communication cost;low-rate DoS attack detection based on WPD-EE algorithm;user identity linkage across location-based social networks with spatio-temporal check-in patterns;optimizing 3-D placement of multiple UAVs based on Taguchiâ€™s method;and feature envy detection based on Bi-LSTM with self-attention mechanism.

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Weaver: Efficient Coflow Scheduling in Heterogeneous parallel Networks 34

Weaver: Efficient Coflow Scheduling in Heterogeneous Paralle...

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34th ieee international parallel and distributed processing symposium (IPDPS)

作者： Huang, Xin Sunny Xia, Yiting Ng, T. S. Eugene Rice Univ Houston TX 77251 USA Facebook Inc Cambridge MA USA

ISBN: (纸本)9781728168760

Leveraging application-level requirements expressed in Coflows has been shown to improve application-level communication efficiency. However, most existing works assume all application traffic is serviced by one monolithic network. this over-simplified assumption is no longer sufficient in a modern, evolving data center which operates on multiple generations of network fabrics, an architecture that we define as Heterogeneous parallel Networks (HPNs). In this paper, we present the first scheduler, called Weaver, that addresses the Coflow management problem in HPNs. To exploit HPNs fully, achieving high communication efficiency for applications is crucial, yet it is also challenging because of the complex traffic patterns in applications and the heterogeneous bandwidth distribution in HPNs. Weaver addresses these challenges at two levels. At the microscopic level, for each application, Weaver leverages an efficient algorithm to exploit the distributed bandwidth in HPNs, which we proved to be within a constant factor of the optimal. At the macroscopic level involving multiple applications, Weaver can adopt a range of application traffic scheduling policies as desired by the system operator. Under realistic traffic, Weaver enables HPNs to service Coflows as efficiently as a monolithic network with equivalent aggregated capacity.

关键词： Efficiency

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Performance Evaluation of Pipelined Communication Combined with Computation in OpenCL Programming on FPGA 34

Performance Evaluation of Pipelined Communication Combined w...

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34th ieee international parallel and distributed processing symposium (IPDPS)

作者： Fujita, Norihisa Kobayashi, Ryohei Yamaguchi, Yoshiki Ueno, Tomohiro Sano, Kentaro Boku, Taisuke Univ Tsukuba Ctr Computat Sci Tsukuba Ibaraki Japan Univ Tsukuba Grad Sch Syst & Informat Engn Tsukuba Ibaraki Japan RIKEN Ctr Computat Sci Kobe Hyogo Japan

ISBN: (纸本)9781728174457

In recent years, much High Performance Computing (HPC) researchers attract to utilize Field Programmable Gate Arrays (FPGAs) for HPC applications. We can use FPGAs for communication as well as computation thanks to FPGA's I/O capabilities. HPC scientists cannot utilize FPGAs for their applications because of the difficulty of the FPGA development, however High Level Synthesis (HLS) allows them to use with appropriate costs. In this study, we propose a Communication Integrated Reconfigurable CompUting System (CIRCUS) to enable us to utilize high-speed interconnection of FPGAS from OpenCL. CIRCUS makes a fused single pipeline combining the computation and the communication, which hides the communication latency by completely overlapping them. In this paper, we present the detail of the implementation and the evaluation result using two benchmarks: pingpong benchmark and allreduce benchmark.

关键词： FPGA OpenCL HLS parallel computing inter-connection

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