Download or read book Scheduling for Locality in Shared memory Multiprocessors written by University of Rochester. Department of Computer Science and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We conclude that communication overhead need not dominate performance on present or future multiprocessors, given an appropriate programmingmodel, multiprogramming scheduling policy, and user-level decomposition and scheduling algorithms."

Download or read book Scheduling for Locality in Shared memory Multiprocessors written by University of Rochester. Dept. of Computer Science and published by . This book was released on 1993 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Job Scheduling Strategies for Parallel Processing written by Dror G. Feitelson and published by Springer Science & Business Media. This book was released on 1996-10-16 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the strictly refereed post-workshop proceedings of the International Workshop on Job Scheduling Strategies for Parallel Processing, held in conjunction with IPPS '96 symposium in Honolulu, Hawaii, in April 1996. The book presents 15 thoroughly revised full papers accepted for inclusion on the basis of the reports of at least five program committee members. The volume is a highly competent contribution to advancing the state-of-the-art in the area of job scheduling for parallel supercomputers. Among the topics addressed are job scheduler, workload evolution, gang scheduling, multiprocessor scheduling, parallel processor allocation, and distributed memory environments.

Download or read book Load Balancing Vs Locality Management in Shared memory Multiprocessors written by Evangelos P. Markatos and published by . This book was released on 1991 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Program Transformations for Cache Locality Enhancement on Shared memory Multiprocessors written by Naraig Manjikian and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation proposes and evaluates compiler techniques that enhance cache locality and consequently improve the performance of parallel applications on shared-memory multiprocessors. These techniques target applications with loop-level parallelism that can be detected and exploited automatically by a compiler. Novel program transformations are combined with appropriate loop scheduling in order to exploit data reuse while maintaining parallelism and avoiding cache conflicts. First, this dissertation proposes the shift-and-peel transformation for enabling loop fusion and exploiting reuse across parallel loops. The shift-and-peel transformation overcomes dependence limitations that have previously prevented loops from being fused legally, or prevented legally-fused loops from being parallelized. Therefore, this transformation exploits all reuse across loops without loss of parallelism. Second, this dissertation describes and evaluates adaptations of static loop scheduling strategies to exploit wavefront parallelism while ensuring locality in tiled loops. Wavefront parallelism results when tiling is enabled by combining the shift-and-peel transformation with loop skewing. Proper scheduling exploits both intratile and intertile data reuse when independent tiles are executed in parallel on a large number of processors. Third, this dissertation proposes cache partitioning for preventing cache conflicts between data from different arrays, especially when exploiting reuse across loops. Specifically, cache partitioning prevents frequently-recurring conflicts in loops with compatible data access patterns. Cache partitioning transforms the data layout such that there are no conflicts for reused data from different arrays during loop execution. An analytical model is also presented to assess the potential benefit of locality enhancement. This model estimates the expected reduction in execution time by parameterizing the reduction in the number of memory accesses with locality enhancement and the contribution of memory accesses towards execution time. Experimental results show that the proposed techniques improve parallel performance by 20%-60% for representative applications on contemporary multiprocessors. The results also show that significant improvements are obtained in conjunction with other performance-enhancing techniques such as prefetching. The importance of the techniques described in this dissertation will continue to increase as processor performance continues to increase more rapidly than memory performance.

Download or read book Processor Scheduling in Shared Memory Multiprocessors written by John Zahorjan and published by . This book was released on 1989 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scalable Shared Memory Multiprocessors written by Michel Dubois and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop on Scalable Shared Memory Multiprocessors took place on May 26 and 27 1990 at the Stouffer Madison Hotel in Seattle, Washington as a prelude to the 1990 International Symposium on Computer Architecture. About 100 participants listened for two days to the presentations of 22 invited The motivation for this workshop was to speakers, from academia and industry. promote the free exchange of ideas among researchers working on shared-memory multiprocessor architectures. There was ample opportunity to argue with speakers, and certainly participants did not refrain a bit from doing so. Clearly, the problem of scalability in shared-memory multiprocessors is still a wide-open question. We were even unable to agree on a definition of "scalability". Authors had more than six months to prepare their manuscript, and therefore the papers included in this proceedings are refinements of the speakers' presentations, based on the criticisms received at the workshop. As a result, 17 authors contributed to these proceedings. We wish to thank them for their diligence and care. The contributions in these proceedings can be partitioned into four categories 1. Access Order and Synchronization 2. Performance 3. Cache Protocols and Architectures 4. Distributed Shared Memory Particular topics on which new ideas and results are presented in these proceedings include: efficient schemes for combining networks, formal specification of shared memory models, correctness of trace-driven simulations,synchronization, various coherence protocols, .

Download or read book Scheduling for Licality in Shared memory Multiprocessors written by E. Markatos and published by . This book was released on 1993 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Processor Affinity in Loop Scheduling on Shared memory Multiprocessors written by University of Rochester. Dept. of Computer Science and published by . This book was released on 1992 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scheduling Algorithms and Their Performance on Shared Memory Multiprocessors written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Memory or Cache Affinity in Loop Scheduling on Shared Memory Multiprocessors written by Evangelos P. Markatos and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings -- Technical Reports.

Download or read book Evaluating the Benefits of Cache affinity Scheduling in Shared memory Multiprocessors written by Josep Torrellas and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Processor Scheduling in Multiprogrammed Shared Memory NUMA Multiprocessors written by Chee-Shong Wu and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Languages Compilers and Run Time Systems for Scalable Computers written by Boleslaw K. Szymanski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Language, Compilers and Run-time Systems for Scalable Computers contains 20 articles based on presentations given at the third workshop of the same title, and 13 extended abstracts from the poster session. Starting with new developments in classical problems of parallel compiler design, such as dependence analysis and an exploration of loop parallelism, the book goes on to address the issues of compiler strategy for specific architectures and programming environments. Several chapters investigate support for multi-threading, object orientation, irregular computation, locality enhancement, and communication optimization. Issues of the interface between language and operating system support are also discussed. Finally, the load balance issues are discussed in different contexts, including sparse matrix computation and iteratively balanced adaptive solvers for partial differential equations. Some additional topics are also discussed in the extended abstracts. Each chapter provides a bibliography of relevant papers and the book can thus be used as a reference to the most up-to-date research in parallel software engineering.

Download or read book Efficient Scheduling on Multiprogrammed Shared memory Multiprocessors written by Andrew Tucker and published by . This book was released on 1993 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis explores using more sophisticated scheduling systems to avoid these problems. Robust implementations of previously proposed approaches involving cache affinity scheduling and gang scheduling are developed and evaluated. It then presents the design, implementation, and performance of process control, a novel scheduling approach using explicit cooperation between the application and kernel to minimize context switching. Performance results from a suite of workloads containing both serial and parallel applications, run on a 4-processor Silicon Graphics workstation, confirm the effectiveness of the process control approach.

Download or read book Using Processor cache Affinity Information in Shared memory Multiprocessor Scheduling written by Mark S. Squillante and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.