Numvec Fortran Library Manual. Chapter: Basic Linear Algebra. Routine: Matmul.Chapter: Simultaneous Linear Equations. Routines: BIDIAGL and BIDIAGU

摘要

The following NUMVEC FORTRAN library routines (developed for the Cyber 205) aredescribed: MATMUL performs matrix matrix multiplication on full matrices, by means of 64 fold unrolling in the usual vector update method; BIDIAGL and BIDIAGU solve systems of linear equations where the matrix is lower and upper bidiagonal respectively. In order to obtain maximal performance on the Cyber 205 (120 MFLOPS for MATMUL and 18 MFLOPS for BIDIAGL and BIDIAGU) these routines were written in the assembly language META.