Performance Analysis of Parallel Algorithms
Journal Title: Journal of Applied Quantitative Methods - Year 2007, Vol 2, Issue 1
Abstract
A grid is a collection of individual machines. The goal is to create the illusion of a powerful computer out of a large collection of connected systems sharing resources. Some resources may be used by all users of the grid while others may have specific restrictions. The most common resource is computing cycles provided by the processors. Grid computing represents unlimited opportunities in terms of business and technical aspects. The main reason of parallelization a sequential program is to run the program faster. The first criterion to be considered when evaluating the performance of a parallel program is the speedup used to express how many times a parallel program works faster than the corresponding sequential one used to solve the same problem. When running a parallel program on a real parallel system there is an overhead coming from processors load imbalance and from communication times needed for changing data between processors and for synchronization. This is the reason why the execution time of the program will be greater than the theoretical value.
Authors and Affiliations
Felician ALECU
Keywords
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