GPU BFS - Void Juh's Page

Advanced Graph Traversal Algorithm Implementation

Introduction

This page presents an implementation of the Breadth-First Search (BFS) algorithm optimized for GPU processing. The algorithm is designed to traverse graph structures efficiently, making it suitable for large-scale data processing tasks.

The implementation leverages modern GPU architectures to perform efficient memory access and parallel computation, allowing for faster traversal times compared to CPU-based alternatives.

GPU BFS Image

Implementation Details

The BFS algorithm implemented here follows standard graph traversal principles. Each node in the graph is represented by its unique ID, and edges are stored in adjacency lists for efficient lookup.

The implementation utilizes CUDA kernels for parallel execution on the GPU, enabling concurrent traversal of multiple nodes at once. This allows the algorithm to handle vast amounts of data within reasonable time frames.

Usage Example

Sample Input:


graph = [
    [0, 1, 2],
    [1, 0, 3],
    [2, 3, 0]
]

Output:


BFS order: 0, 1, 2, 3

Performance Metrics

Speed Comparison:

CPU-Based BFS: 500ms per iteration
GPU-Based BFS: 100ms per iteration

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