Daichi Mukunoki is a research scientist at RIKEN Center for Computational Science (R-CCS) (Japan). He received his Ph.D. degree in computer science in 2013 from University of Tsukuba. He was a research fellow of the Japan Society for the Promotion of Science in 2013-2014, a postdoctoral researcher at RIKEN Advanced Institute for Computational Science (current R-CCS) in 2014-2017, and a postdoctoral research fellow at Tokyo Woman's Christian University in 2017-2019. His research interests include high-performance computing, many-core and parallel architectures, linear algebra operations, and accurate and reproducible computation methods.