2 Commits

Author	SHA1	Message	Date
Peter Boyle	5e370db6c5	Sizable improvement in multigrid for unsquared. ... 6000 matmuls CG unprec 2000 matmuls CG prec (4000 eo muls) 1050 matmuls PGCR on 16^3 x 32 x 8 m=.01 Substantial effort on timing and logging infrastructure	2015-07-24 01:31:13 +09:00
Azusa Yamaguchi	a8b9109cc8	multishift conjugate gradient added and a strong test: take a diagonal ... but non-identity matrix l1 0 0 0 .... 0 l2 0 0 .... 0 0 l3 0 ... . . . . . . . . . And apply the multishift CG to it. Sum the poles and residues. Insist that this be the same as the exactly taken square root where l1,l2,l3 >= 0.	2015-06-08 11:52:44 +01:00