[petsc-dev] Line search
Mark Adams
mfadams at lbl.gov
Wed Feb 15 08:39:25 CST 2017
I am getting a lot of time in line search. see below. This is what I see
with view:
SNESLineSearch Object: 1 MPI processes
type: basic
maxstep=1.000000e+08, minlambda=1.000000e-12
tolerances: relative=1.000000e-08, absolute=1.000000e-15,
lambda=1.000000e-08
maximum iterations=1
Shouldn't my line search time be tiny?
SNESSolve 1 1.0 1.3222e-01 1.0 2.87e+08 1.0 2.7e+02 4.5e+03
0.0e+00 14 50 8 9 0 14 50 8 9 0 590811
SNESFunctionEval 2 1.0 1.2035e-01 1.0 2.87e+08 1.0 2.7e+02 4.5e+03
0.0e+00 13 50 8 9 0 13 50 8 9 0 648067
SNESJacobianEval 1 1.0 7.8297e-04 4.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00 0 0 0 0 0 0 0 0 0 0 0
SNESLineSearch 1 1.0 1.2040e-01 1.0 2.87e+08 1.0 2.7e+02 4.5e+03
0.0e+00 13 50 8 9 0 13 50 8 9 0 647734
KSPGMRESOrthog 1 1.0 6.4087e-0413.4 2.24e+03 1.0 0.0e+00 0.0e+00
0.0e+00 0 0 0 0 0 0 0 0 0 0 952
KSPSetUp 1 1.0 3.5691e-04 1.8 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00 0 0 0 0 0 0 0 0 0 0 0
KSPSolve 1 1.0 1.1965e-02 1.1 4.49e+05 1.0 0.0e+00 0.0e+00
0.0e+00 1 0 0 0 0 1 0 0 0 0 10199
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