並列計算機CS6400における数値計算ライプラリの現状と問題点

We have analyzed the parallel performance of some numerical libraries for the Cray CS 6400 parallel computer system of the computing center of the Earthquake Research Institute, Univ. of Tokyo. We used both the matrix multiplications and the solution of the linear system of equations for comparing the performance of LibSci, IMSL 90 Library, and IMSL 77 Library. The size of matrices was tested from 32 to 1024. As a result, it became clear that LibSci had good performance for this system, but IMSL 90 Library was not parallelized. We had modest parallel performance from IMSL 77 Library with the Cray CF 90 compiler.＜論説