软件学院学术报告:生物信息分析在高性能异构平台下的性能提升及比特币和区块链的介绍
发布时间:2019-11-07 浏览次数:

软件学院学术报告:
主讲人:江西师大软件学院 陈少龙 海归博士
时间:2019.11.8(周五) 下午2点
地点:软件学院大会议室(先骕楼3306)
Session 1: Efficient Improvement in Performance for Variant Analysis on Heterogeneous Cluster(生物信息分析在高性能异构平台下的性能提升)
Nowadays heterogeneous architectures formed by multicore and manycore systems have become attractive solutions to cope with the data booming in genomic-based studies. Our work explores the efficient usage of heterogeneous architectures in such area. In particular, we have studied the use of manycore components like the Xeon Phi accelerator, which has proved to be a convenient choice because it allows an easy migration of applications developed for multicore servers based on the x86 architecture. Our study also focuses on the problem of sequence alignment, which is one of the fundamental and most costly computational stages in most genome variant studies. Although the problem of alignment of sequences fits in the embarrassingly parallel pattern, achieving good performance and good scalability in heterogeneous environments can be complicated. Our proposal was applied to BWA using human genome data samples, however this strategy can be easily applied to other sequence datasets and alignment tools that have similar operating principles with those of BWA aligner.
(现今由多核和众核构成的异构平台,正在成为生物信息分析学中非常有吸引力的计算解决方案。我们的研究是探索在该领域下的异构平台的有效计算方案。尤其是众核结构,比如Intel Xeon Phi加速器。该加速器基于x86结构,易于从主处理器迁移应用,而不需重构代码。我们的研究主要集中在生物信息学中计算量最大的基础步骤,序列比对(sequence alignment)。尽管序列比对的问题适合数据平行模式,但是在异构环境下取得好性能和可扩展性却不容易。我们的研究是在人类基因数据集下的BWA应用,但是同样的策略是可以轻易地迁移到其它基因数据集和与BWA类似的序列比对应用。)

Session 2: Introduction to Bitcoin and Blockchain: Trick or Treat?(比特币和区块链的介绍:骗局,还是盛宴?)
What is Bitcoin? Why the hackers and the scammers love it? How the relationship between Bitcoin and Blockchain? Have you ever known that somebody cost 10,000 bitcoins to buy two pizzas which values 100 million dollars now? Have you ever known that China dominates global bitcoin production and transaction up to 90%+ but now only 1%? How did that happen? Bitcoin and Blockchain is trick ? or treat?
(什么是比特币?为什么黑客和骗子钟爱它?比特币和区块链的关系又是怎么样?你可曾知道有人花1万比特币仅仅买了两个披萨,现今价值1亿美元?你可曾知道曾经全球比特币的生产和交易90%以上都在中国,而如今只有1%?这是什么样的故事?比特币和区块链是一场骗局,还是一场盛宴?)