@techreport{weko_113232_1, author = "Takahiro,Katagiri and Jun'ichi,Iwata and Kazuyuki,Uchida", title = "A Communication Avoiding and Reducing Algorithm for Symmetric Eigenproblem for Very Small Matrices", year = "2015", institution = "Information Technology Center, The University of Tokyo, Department of Applied Physics School of Engineering, The University of Tokyo, Department of Applied Physics School of Engineering, The University of Tokyo", number = "2", month = "feb" }