Frank <[email protected]> writes: > Hi, > > I am thinking of solving a linear equations, whose coefficient matrix > has 27 nonzero diagonal bands(diagonal dominant). Does any body have any > idea about how this will perform? Do you have any recommendation about > which solver to choose?
How far away from the diagonal are those bands, as a function of the grid size (if relevant)? http://scicomp.stackexchange.com/a/880/119 http://scicomp.stackexchange.com/a/869/119 > I have solved a 11 nonzero diagonal bands matrix equation with > "boomeramg", which is 50% solwer than 7 nonzero diagonal bands. This doesn't mean much of anything. Send -log_summary if you have performance questions. Why does the subject of this email say "dense"?
pgp9rPuxLl2RQ.pgp
Description: PGP signature
