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Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)最新文献

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A scheduling expert advisor for heterogeneous environments 异构环境的调度专家顾问
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581411
Mihai G. Sirbu, D. Marinescu
{"title":"A scheduling expert advisor for heterogeneous environments","authors":"Mihai G. Sirbu, D. Marinescu","doi":"10.1109/HCW.1997.581411","DOIUrl":"https://doi.org/10.1109/HCW.1997.581411","url":null,"abstract":"In this paper we discuss intelligent agent support for parallel and distributed computing in a heterogeneous environment. We provide an overview of the Bond environment and of services provided by a network on intelligent agents, then we discuss in depth the Scheduling Expert Advisor SEA. The SEA processes a high level description of a computational task provided by a user and converts it into a set of facts and rules. An expert system starts the execution of one program or a group of programs based on the scheduling information compiled earlier.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Mercury Computer Systems' modular heterogeneous RACE(R) multicomputer 水星计算机系统的模块化异构RACE(R)多计算机
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581410
T. H. Einstein
{"title":"Mercury Computer Systems' modular heterogeneous RACE(R) multicomputer","authors":"T. H. Einstein","doi":"10.1109/HCW.1997.581410","DOIUrl":"https://doi.org/10.1109/HCW.1997.581410","url":null,"abstract":"A heterogeneous multicomputer is a multicomputer composed of two or more different types of processors. This paper describes the rationale for heterogeneity in a multicomputer and gives a typical example of a heterogeneous system in the form of a RACE multicomputer composed of a mixture of Analog Devices' SHARC 21060 and the IBM/Motorola/Apple PowerPC 603p processors. These two processors have complementary attributes, and the advantages and limitations of each are described. Multicomputers generally implement a sequence of different processing algorithms. The \"optimal\" processor that maximizes throughput at each step in the processing flow is generally a function of the algorithm to be executed at that step. Other factors that also influence the optimal mix of processors in a heterogeneous multicomputer include physical processing density, hardware cost, and ease of programmability.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116691408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
UbiWorld: an environment integrating virtual reality, supercomputing, and design UbiWorld:一个集虚拟现实、超级计算和设计于一体的环境
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581409
T. Disz, M. Papka, R. Stevens
{"title":"UbiWorld: an environment integrating virtual reality, supercomputing, and design","authors":"T. Disz, M. Papka, R. Stevens","doi":"10.1109/HCW.1997.581409","DOIUrl":"https://doi.org/10.1109/HCW.1997.581409","url":null,"abstract":"UbiWorld is a concept being developed by the Futures Laboratory group at Argonne National Laboratory that ties together the notion of ubiquitous computing (Ubicomp) with that of using virtual reality for rapid prototyping. The goal is to develop an environment where one can explore Ubicomp-type concepts without having to build real Ubicomp hardware. The basic notion is to extend object models in a virtual world by using distributed wide area heterogeneous computing technology to provide complex networking and processing capabilities to virtual reality objects.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126557123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
A stochastic model of a dedicated heterogeneous computing system for establishing a greedy approach to developing data relocation heuristics 一个专用异构计算系统的随机模型，用于建立一种贪婪的方法来开发数据重定位启发式
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581415
Min Tan, H. Siegel
{"title":"A stochastic model of a dedicated heterogeneous computing system for establishing a greedy approach to developing data relocation heuristics","authors":"Min Tan, H. Siegel","doi":"10.1109/HCW.1997.581415","DOIUrl":"https://doi.org/10.1109/HCW.1997.581415","url":null,"abstract":"In a dedicated mixed-machine heterogeneous computing (HC) system, an application program may be decomposed into subtasks, then each subtask assigned to the machine where it is best suited for execution. Subtask data relocation is defined as selecting the sources for their needed data items. This study focuses on theoretical issues for data relocation using a stochastic HC model. It is assumed that multiple independent subtasks of an application program can be executed concurrently on different machines whenever possible. A stochastic model for HC is proposed, in which the computation times of subtasks and communication times for inter-machine data transfers can be random variables. The optimization problem for finding the optimal matching, scheduling, and data relocation schemes to minimize the total execution time of an application program is defined based on this stochastic HC model. The optimization criteria and search space for the above optimization problem are described. It is proven that a greedy algorithm based approach will generate the optimal data relocation scheme with respect to any fixed matching and scheduling schemes. This result indicates that a greedy algorithm based approach is the best strategy for developing data relocation heuristics in practice.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127281191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The hopping ruse 跳跃的诡计
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581422
Marina C. Chen, J. Cowie
{"title":"The hopping ruse","authors":"Marina C. Chen, J. Cowie","doi":"10.1109/HCW.1997.581422","DOIUrl":"https://doi.org/10.1109/HCW.1997.581422","url":null,"abstract":"We describe a novel framework for early detection and isolation of security violations in heterogeneous environments, based on real-time service hopping. In distributed client-server systems, service hopping fills a role analogous to frequency-hopping spread-spectrum techniques for secure wireless communication. The framework incorporates design principles for secure hopping, as well as engineering principles for improving throughput in the presence of a statistically noisy interconnection network. We describe potential large-scale applications of the hopping techniques, and present some initial experimental results with a hopping client-server system.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117043612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A programming environment for heterogenous distributed memory machines 异构分布式内存机的编程环境
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581408
D. Arapov, A. Kalinov, Alexey L. Lastovetsky, Ilya Ledovskih, T. Lewis
{"title":"A programming environment for heterogenous distributed memory machines","authors":"D. Arapov, A. Kalinov, Alexey L. Lastovetsky, Ilya Ledovskih, T. Lewis","doi":"10.1109/HCW.1997.581408","DOIUrl":"https://doi.org/10.1109/HCW.1997.581408","url":null,"abstract":"mpC is a medium level programming language for distributed memory machines (DMM). The language is an ANSI C superset based on the notion of a network comprising virtual processors of different types and performances connected with links of different bandwidths. It allows the user to describe a network topology, create and discard networks, and distribute data and computations over the networks. In other words, the user can specify (dynamically) the topology of his application, and the mpC programming environment will use this (topological) information in run time to ensure the efficient execution of the application on any particular DMM. The paper outlines the principal features of mpC and its programming environment which make them suitable tools to write efficient and portable parallel programs for heterogenous DMM.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121490038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
The MOL project: an open, extensible metacomputer MOL项目:一个开放的、可扩展的元计算机
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581407
A. Reinefeld, R. Baraglia, T. Decker, J. Gehring, D. Laforenza, F. Ramme, Thomas Römke, J. Simon
{"title":"The MOL project: an open, extensible metacomputer","authors":"A. Reinefeld, R. Baraglia, T. Decker, J. Gehring, D. Laforenza, F. Ramme, Thomas Römke, J. Simon","doi":"10.1109/HCW.1997.581407","DOIUrl":"https://doi.org/10.1109/HCW.1997.581407","url":null,"abstract":"Distributed high-performance computing (so-called metacomputing) refers to the coordinated use of a pool of geographically distributed high-performance computers. The user's view of an ideal metacomputer is that of a powerful monolithic virtual machine. The implementor's view, on the other hand, is that of a variety of interacting services implemented in a scalable and extensible manner. We present MOL, the Metacomputer Online environment. In contrast to other metacomputing environments, MOL is not based on specific programming models or tools. It has rather been designed as an open, extensible software system comprising a variety of software modules, each of them specialized in serving one specific task such as resource scheduling, job control, task communication, task migration, user interface, and much more. All of these modules exist and are working. The main challenge in the design of MOL lies in the specification of suitable, generic interfaces for the effective interaction between the modules.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"28 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120895397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 54
Supporting fault-tolerance in heterogeneous distributed applications 支持异构分布式应用程序中的容错
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581421
P. Maheshwari, J. Ouyang
{"title":"Supporting fault-tolerance in heterogeneous distributed applications","authors":"P. Maheshwari, J. Ouyang","doi":"10.1109/HCW.1997.581421","DOIUrl":"https://doi.org/10.1109/HCW.1997.581421","url":null,"abstract":"Heterogeneous computing opens up new challenges and opportunities in fields such as parallel and distributed processing, design of algorithms for applications, scheduling of parallel tasks, interconnection network technology and support for reliable distributed heterogeneous computing. A trend of supporting fault-tolerance in distributed computing systems is to incorporate fault-tolerance into applications at low cost, in terms of both run time performance and programming effort required to construct reliable application software. We present an approach for developing efficient reliable distributed applications for heterogeneous computing systems. We propose a library prototype, called H-Libra, to support fault-tolerance in heterogeneous systems with low run-time cost. Fault-tolerance is based on distributed consistent checkpointing and rollback-recovery integrated with a user-level network communication protocol. By employing novel mechanisms, minimum communication overhead is involved for taking a consistent distributed checkpoint and catching messages in transit during a checkpoint. By providing fault-tolerance transparency and a simple, easy to use high-level message-passing interface, H-Libra simplifies the development of reliable heterogeneous distributed applications.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116828782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Stochastic Petri nets applied to the performance evaluation of static task allocations in heterogeneous computing environments 随机Petri网应用于异构计算环境下静态任务分配的性能评价
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581420
A. McSpadden, N. Lopez-Benitez
{"title":"Stochastic Petri nets applied to the performance evaluation of static task allocations in heterogeneous computing environments","authors":"A. McSpadden, N. Lopez-Benitez","doi":"10.1109/HCW.1997.581420","DOIUrl":"https://doi.org/10.1109/HCW.1997.581420","url":null,"abstract":"A stochastic Petri net (SPN) is systematically constructed from a task graph whose component subtasks are statically allocated onto the processor suite of a heterogeneous computing system (HCS). Given that subtask execution times are exponentially distributed an exponential distribution can be generated for the overall completion time. In particular the enabling functions and rate functions used to specify the SPN model provide needed versatility to integrate processor heterogeneity, task priorities, allocation schemes, communication costs, and other factors characteristic of a HCS into a comprehensive performance analysis. The manner in which these parameters are incorporated into the SPN allows the model to be transformed into a testbed for optimization schemes and heuristics. The proposed approach can be applied to arbitrary task graphs including non-series-parallel.","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
On-line use of off-line derived mappings for iterative automatic target recognition tasks and a particular class of hardware platforms 在线使用离线派生映射迭代自动目标识别任务和特定类别的硬件平台
Proceedings Sixth Heterogeneous Computing Workshop (HCW'97) Pub Date : 1997-04-01 DOI: 10.1109/HCW.1997.581413
J. Budenske, R. Ramanujan, H. Siegel
{"title":"On-line use of off-line derived mappings for iterative automatic target recognition tasks and a particular class of hardware platforms","authors":"J. Budenske, R. Ramanujan, H. Siegel","doi":"10.1109/HCW.1997.581413","DOIUrl":"https://doi.org/10.1109/HCW.1997.581413","url":null,"abstract":"Heterogeneous computing covers a great variety of situations. This study focuses on a particular application domain (iterative automatic target recognition tasks) and an associated specific class of dedicated heterogeneous hardware platforms. The contribution of this paper is that, for the computational environment considered, it presents a methodology for real-time on-line input-data dependent remappings of the application subtasks to the processors in the heterogeneous hardware platform using previously stored off-line statically determined mappings. That is, the operating system will be able to decide during the execution of the application whether or not to perform a remapping based on information generated by the application from its input data. If the decision is to remap, the operating system will be able to select a previously derived and stored mapping that is appropriate for the given state of the application (e.g., the number of objects it is currently tracking).","PeriodicalId":286909,"journal":{"name":"Proceedings Sixth Heterogeneous Computing Workshop (HCW'97)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126545938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
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