Download Automatic Algorithm Recognition and Replacement: A New by Robert Metzger PDF

By Robert Metzger

Parallel computation turns into the norm within the coming many years. regrettably, advances in parallel have a long way outpaced parallel functions of software program. There are at present techniques to utilising parallelism to functions. One is to jot down thoroughly new purposes in new languages. yet leaving behind purposes that paintings is unacceptable to so much nonacademic clients of high-performance pcs. the opposite process is to transform present functions to a parallel shape. this is often performed manually or instantly. Even partial luck in doing the activity immediately has noticeable monetary advantages.This ebook describes a essentially new theoretical framework for locating terrible algorithms in an software software and changing them with ones that parallelize the code.

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So, n involved. ” t for a single MAP-CSP pents in a plan and M is ; problem. ” This only represents rowledge that “the worst CSP), where it N is the tity of verifying whether oat the value of N can be ms in each layer. This is a Extent: The authors say that their current implementation does not compute data-flow relationships that cross function boundaries. Ordering: Brief mention is made of a special pass is made over the Abstract Syntax Tree produced by the parser to rewrite various surface level sources of ordering differences into a canonical form.

No discussion of The purpose of Kozaczynski and Ning’s work (3 1) (32) is to enable programmers to understand what an existing program does so that they can perform such tasks as enhancement, debugging, and migration. For these purposes, this work seeks to identify abstract concepts in code. Their knowledge base is structured as a hierarchy of concept classes. The specification of how to recognize an abstract concept contains information about the components (subconcepts) of the concept and constraints among the sub-concepts.

Le. 'i ) M= ,L+H) (2 ifi k(K! gt. Zz. x ) then H = I.! 2 Induction variable strength reduction - before and after 53 Chapter 4 In our approach, we work with the concept of an induction value (Def. 4), which is more general than the concept of an induction variable. The process of turning the induction values to our internal representation (Sect. 4) includes the work of induction variable strength reduction. 3 Organization variation The code in an application can be organized in many ways. For example, the statements can be grouped together as procedures in any order that preserves the intended semantics.

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