3 papers
cs.MS2019
Performance Engineering for Real and Complex Tall & Skinny Matrix Multiplication Kernels on GPUs
Dominik Ernst, Georg Hager, Jonas Thies +1
General matrix-matrix multiplications with double-precision real and complex entries (DGEMM and ZGEMM) in vendor-supplied BLAS libraries are best optimized for square matrices but…
physics.comp-ph2018
Benefits from using mixed precision computations in the ELPA-AEO and ESSEX-II eigensolver projects
Andreas Alvermann, Achim Basermann, Hans-Joachim Bungartz +30
We first briefly report on the status and recent achievements of the ELPA-AEO (Eigenvalue Solvers for Petaflop Applications - Algorithmic Extensions and Optimizations) and ESSEX II…
cs.MS2018
Chebyshev Filter Diagonalization on Modern Manycore Processors and GPGPUs
Moritz Kreutzer, Georg Hager, Dominik Ernst +3
Chebyshev filter diagonalization is well established in quantum chemistry and quantum physics to compute bulks of eigenvalues of large sparse matrices. Choosing a block vector impl…