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Performance Improvement in Large Graph Algorithms on GPU Using CUDA: An Overview

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Executive Summary

The basic operations on the graphs with millions of vertices are common in various applications. To have faster execution of such operations is very essential to reduce overall computation time. Today's Graphics Processing Units (GPUs) have high computation power and low price. This device can be treated as an array of Single Instruction Multiple Data (SIMD) processors using CUDA software interface by Nvidia. Massively Multithreaded architecture of a CUDA device makes various threads to run in parallel and hence making optimum use of available computation power of GPU. In case of graph algorithms, vertices of the graphs are processed in parallel by mapping them to various threads on device.

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