相关实验视频
Updated: Jul 4, 2025
08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
15.9K
对多核计算架构的贝叶斯族遗传学分析:在RevBayes与MPI中实现和评估BEAGLE
Killian Smith1,2, Daniel Ayres3, René Neumaier1
1GeoBio-Center, Ludwig-Maximilians-Universität München, Richard-Wagner Straße 10, 80333 Munich, Germany.
Systematic biology
|January 29, 2024
概括
现在RevBayes集成了BEAGLE库,用于更快的基因分析,显著加快了CPU和GPU上的概率计算. 这种优化对于高效处理大型生物数据集和复杂的进化模型至关重要.
科学领域:
- 计算生物学 计算生物学
- 进化生物学 进化生物学
- 生物信息学是一种生物信息学.
背景情况:
- 遗传学分析在生物学中至关重要,通常采用计算密集的基于概率的方法.
- 大数据集和复杂的模型带来了重大的计算挑战,主要是由于概率计算速度缓慢.
研究的目的:
- 通过优化概率计算来加速RevBayes中的基因推理.
- 为了提高RevBayes的性能,使用多核CPU和GPU进行大规模的基因分析.
主要方法:
- 将高性能BEAGLE库集成到RevBayes中,以实现多线程CPU和GPU加速.
- 在RevBayes中使用消息传递接口 (MPI) 实现本地并行.
- 在各种硬件上使用DNA和氨基酸数据集评估性能,包括NVIDIA GPU.
主要成果:
- 在多核CPU上达到20倍的速度,在多GPU设置上达到90倍以上的速度.
- 证明了部分概率的低效调整可使运行时间增加4倍.
- 引入了一种用于存储部分概率在分支上的新方法,以两倍的内存成本提供1.7倍的加快速度.
结论:
- RevBayes+BEAGLE的实施为遗传学分析提供了显著的性能改进.
- 优化的概率计算和高效的内存管理对于遗传学中的计算效率至关重要.
- 这些进步使得对大型生物数据集进行更快,更可扩展的遗传学推断成为可能.
相关概念视频
01:20Parallel Processing
152
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
152
02:54Evolutionary Relationships through Genome Comparisons
5.7K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.7K
01:23Phylogeny
44.1K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
44.1K
01:20Biostatistics: Overview
244
Biostatistics plays a crucial role in understanding and analyzing data in healthcare and biology. Biostatisticians conduct experiments, gather evidence, and draw meaningful conclusions using statistical methods and techniques. Different variables form the foundation of biostatistical analysis, allowing researchers to understand and interpret data effectively. These variables are classified into different types, each serving a specific purpose in statistical analysis.
Discrete variables are...
Discrete variables are...
244
02:51Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
03:21Phylogenetic Trees
45.3K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
45.3K