DDP-B: A Distributed Dynamic Parallel Framework for Meta-genomics Binary Similarity

Part 4: Big Data+CloudInternational audienceGreat efforts have been made on meta-genomics in the field of new species exploration in the past decades. With the development of next-generation sequencing technology, meta-genomics datasets have been produced as large as dozens of hundreds of gigabytes or even several terabytes, which brings a severe challenge to data analysis. Besides, conventional meta-genomics comparing algorithms may not take full advantage of powerful computing capacity from parallel computing techniques due to lack of parallelism. In this paper, we propose DDP-B, a distributed dynamic parallel framework for meta-genomics binary similarity analysis, to overcome these limitations. In this framework, we introduce a binary distance algorithm for meta-genomics similarity measurement and develop different levels of parallel granularity of the algorithm utilizing MPI, OpenMP, and SIMD techniques. Moreover, we establish a dynamic scheduling method to deliver asynchronous parallel computing tasks and design a distributed cluster to deploy the dynamic parallel system, which completes 2.97K pairs of meta-genomics vectors comparison per second and achieves an 134.79x speedup versus the baseline in the optimal condition. Our framework shows stable scalability when assigned larger workloads