Preconditioned Krylov Solvers And Methods For Runtime Loop Parallelization

Author : Doug Baxter
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.61/5 ( download)

DOWNLOAD NOW!

Download or read book Preconditioned Krylov Solvers and Methods for Runtime Loop Parallelization written by Doug Baxter and published by . This book was released on 1988 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: We make a detailed examination of the performance achieved by a Krylov space sparse linear system solver that uses incompletely factored matrices for preconditioners. We compared two related mechanisms for parallelizing the computationally critical sparse triangular solves and sparse numeric incomplete factorizations on a range of test problems. From these comparisons we drew several interesting conclusions about methods that can be used to parallelize loops of the type found here. The performance we obtain is brought into perspective by comparison with timing results from a Cray X/MP supercomputer. Performance on an Encore Multimax/320 with relatively modest computational capabilities comes within a small factor of the performance on a comparable code run on a Cray X/MP. (KR).

Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.48/5 ( download)

DOWNLOAD NOW!

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 594 pages
Book Rating : 4.96/5 ( download)

DOWNLOAD NOW!

Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1989-05 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : M.Y. Hussaini
Publisher : Springer Science & Business Media
ISBN 13 : 1461227089
Total Pages : 424 pages
Book Rating : 4.83/5 ( download)

DOWNLOAD NOW!

Download or read book Algorithmic Trends in Computational Fluid Dynamics written by M.Y. Hussaini and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the ICASE/LaRC Work shop on the "Algorithmic Trends for Computational Fluid Dynamics (CFD) in the 90's" conducted by the Institute for Computer Applica tions in Science and Engineering (ICASE) and the Fluid Mechanics Division of NASA Langley Research Center during September 15-17, 1991. The purpose of the workshop was to bring together numerical analysts and computational fluid dynamicists i) to assess the state of the art in the areas of numerical analysis particularly relevant to CFD, ii) to identify promising new developments in various areas of numerical analysis that will have impact on CFD, and iii) to establish a long-term perspective focusing on opportunities and needs. This volume consists of five chapters - i) Overviews, ii) Accelera tion Techniques, iii) Spectral and Higher-Order Methods, iv) Multi Resolution/ Subcell Resolution Schemes (including adaptive meth ods), and v) Inherently Multidimensional Schemes. Each chapter covers a session of the Workshop. The chapter on overviews contains the articles by J.L. Steger, H.-O. Kreiss, R.W. MacCormack, O.

Author : H. Neishlos
Publisher : IOS Press
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.14/5 ( download)

DOWNLOAD NOW!

Download or read book Parallel Processing written by H. Neishlos and published by IOS Press. This book was released on 1989 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 810 pages
Book Rating : 4.14/5 ( download)

DOWNLOAD NOW!

Download or read book Lecture series written by and published by . This book was released on 1994 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 1148 pages
Book Rating : 4.09/5 ( download)

DOWNLOAD NOW!

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Institute for Computer Applications in Science and Engineering
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.85/5 ( download)

DOWNLOAD NOW!

Download or read book Run-time Parallelization and Scheduling of Loops written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper extends the class of problems that can be effectively compiled by parallelizing compilers. This is accomplished with the doconsider construct which would allow these compilers to parallelize many problems in which substantial loop-level parallelism is available but cannot be detected by standard compile-time analysis. The authors describe the experimentally analyze mechanisms used to parallelize the work required for these types of loops. In each of these methods, a new loop structure is produced by modifying the loop to be parallelized. Also presented are the rules by which these loop transformations may be automated in order that they be included in language compilers. The main application area of our research involves problems in scientific computations and engineering. The workload used in the experiments includes a mixture of real problems as well as synthetically generated inputs. From extensive tests on the Encore Multimax/320, the authors have reached the conclusion that for the types of workloads we have investigated, self-execution almost always performs better than pre-scheduling. Further, the improvement in performance that accrues as a result of global topological sorting of indices as opposed to the less expensive local sorting, is not very significant in the case of self-execution. (KR).

Author :
Publisher :
ISBN 13 :
Total Pages : 1286 pages
Book Rating : 4.59/5 ( download)

DOWNLOAD NOW!

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1989 with total page 1286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 1000 pages
Book Rating : 4.64/5 ( download)

DOWNLOAD NOW!

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: