1. FaST-LMM for two-way Epistasis tests on high performance clusters
- Author
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Universitat Politècnica de València. Departamento de Informática de Sistemas y Computadores - Departament d'Informàtica de Sistemes i Computadors, European Regional Development Fund, Ministerio de Economía y Competitividad, Agencia Estatal de Investigación, Wellcome Trust, Martínez, Héctor, Barrachina, Sergio, Castillo, Maribel, Quintana Ortí, Enrique Salvador, Rambla de Argila, Jordi, Farre, Xavier, Navarro, Arcadi, Universitat Politècnica de València. Departamento de Informática de Sistemas y Computadores - Departament d'Informàtica de Sistemes i Computadors, European Regional Development Fund, Ministerio de Economía y Competitividad, Agencia Estatal de Investigación, Wellcome Trust, Martínez, Héctor, Barrachina, Sergio, Castillo, Maribel, Quintana Ortí, Enrique Salvador, Rambla de Argila, Jordi, Farre, Xavier, and Navarro, Arcadi
- Abstract
[EN] We introduce a version of the epistasis test in FaST-LMM for clusters of multithreaded processors. This new software maintains the sensitivity of the original FaST-LMM while delivering acceleration that is close to linear on 12-16 nodes of two recent platforms, with respect to improved implementation of FaST-LMM presented in an earlier work. This efficiency is attained through several enhancements on the original single-node version of FaST-LMM, together with the development of a message passing interface (MPI)-based version that ensures a balanced distribution of the workload as well as a multigraphics processing unit (GPU) module that can exploit the presence of multiple GPUs per node.
- Published
- 2018