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A high-performance computing toolset for relatedness and principal component analysis of SNP data

Open access
Zheng, Xiuwen, Levine, David, Shen, Jess, Gogarten, Stephanie M., Laurie, Cathy, Weir, Bruce S.·2012·Bioinformatics

Abstract

Summary: Genome-wide association studies are widely used to investigate the genetic basis of diseases and traits, but they pose many computational challenges. We developed gdsfmt and SNPRelate (R packages for multi-core symmetric multiprocessing computer architectures) to accelerate two key computations on SNP data: principal component analysis (PCA) and relatedness analysis using identity-by-descent measures. The kernels of our algorithms are written in C/C++ and highly optimized. Benchmarks show the uniprocessor implementations of PCA and identity-by-descent are ∼8–50 times faster than the implementations provided in the popular EIGENSTRAT (v3.0) and PLINK (v1.07) programs, respectively, and can be sped up to 30–300-fold by using eight cores. SNPRelate can analyse tens of thousands of samples with millions of SNPs. For example, our package was used to perform PCA on 55 324 subjects from the ‘Gene-Environment Association Studies’ consortium studies. Availability and implementation: gdsfmt and SNPRelate are available from R CRAN (http://cran.r-project.org), including a vignette. A tutorial can be found at https://www.genevastudy.org/Accomplishments/software. Contact: zhengx@u.washington.edu

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Metadata

Authors
Zheng, X., Levine, D., Shen, J., Gogarten, S. M., Laurie, C., & Weir, B. S.
Venue
Bioinformatics
Published
2012-10-11
Volume
28
Issue
24
Pages
3326-3328
ISSN
  • 1367-4803 (ISSN-L)
  • 1367-4811
OpenAlex
W2144504271
Cited by
2,524
References
3
FWCI
12.58
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A high-performance computing toolset for relatedness and principal component analysis of SNP data. https://app.cochat.ai/papers/10.1093/bioinformatics/bts606
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Zheng, X., Levine, D., Shen, J., Gogarten, S. M., Laurie, C., & Weir, B. S. (2012). A high-performance computing toolset for relatedness and principal component analysis of SNP data. Bioinformatics. https://doi.org/10.1093/bioinformatics/bts606

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