کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
520301 | 867710 | 2009 | 26 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An improved algorithm for in situ adaptive tabulation An improved algorithm for in situ adaptive tabulation](/preview/png/520301.png)
In situ adaptive tabulation (ISAT) is a proven storage/retrieval method which efficiently provides accurate approximations to high-dimensional functions which are computationally expensive to evaluate. Previous applications of ISAT to computations of turbulent combustion have resulted in speed-ups of up to a thousand. In this paper, improvements to the original ISAT algorithm are described and demonstrated using two test problems. The principal improvements are in the table-searching strategies and the addition of an error checking and correction algorithm. Compared to an earlier version of ISAT, reductions in CPU time and storage requirements by factors of 2 and 5, respectively, are observed for the most challenging, 54-dimensional test problem.
Journal: Journal of Computational Physics - Volume 228, Issue 2, 1 February 2009, Pages 361–386