Dear readers, I want to solve the following generalized eigenvalue problem in parallel:
http://www.phys.ethz.ch/~cmay/binaryoutput.tgz (gnu zipped tar of the binaryoutput you get using -eps_view_binary) I know the approximate value of the lowest eigenvalues I'm interested in, so I'm using shift-and-invert with the following options: -eps_type krylovschur -st_type sinvert -st_shift -0.228 -eps_ncv 32 -eps_nev 16 -eps_tol 1e-10 However, when I use multiple CPUs, I cannot see any speedup. I am not sure whether this is a problem of the matrix or of my system. Can anybody please have a look? Thanks Christian
