nutils v7.2 "hiyamugi"
start Thu Feb 9 22:47:02 2023
hole radius exact up to L2 error 9.16e-17
project
projection type: lsqr
solve
solving 60 dof system to machine precision using arnoldi solver
constructing direct preconditioner
peak memory use 216k
residual decreased by 15.8 orders using 0 krylov vectors
residual decreased by 0.2 orders using 1 krylov vectors
residual decreased by 0.0 orders using 2 krylov vectors
solver returned with residual 3e-17
constrained 60/60 dofs, error 0.00e+00/area
optimize
constrained 12/120 dofs
optimum value 0.00e+00
optimize
solve
solving 18 dof system to machine precision using arnoldi solver
constructing symmetric direct preconditioner
peak memory use 148k
residual decreased by 15.8 orders using 0 krylov vectors
residual decreased by 0.1 orders using 1 krylov vectors
residual decreased by 0.0 orders using 2 krylov vectors
solver returned with residual 2e-17
constrained 30/120 dofs
optimum value 9.74e-08
solve
solving 90 dof system to machine precision using arnoldi solver
constructing direct preconditioner
peak memory use 327k
residual decreased by 15.6 orders using 0 krylov vectors
residual decreased by 0.1 orders using 1 krylov vectors
solver returned with residual 2e-16
loop _sample_X 88%
RuntimeWarning: singular matrix In /usr/local/lib/python3.9/dist-packages/nutils/warnings.py:17
stressxx.png
errors: L2=9.49e-05, H1=2.86e-03
finish Thu Feb 9 22:47:05 2023