Hi,
I am using h-refinement in my analysis, which uses the mesh function
routines to compute the value of the function in the interior of an element.
All of my elements in the original mesh (before any refinements) are squares
(quad4).
For the most part everything works out fine without any issues.
Occasionally, however, I will get an error in the inverse_map() like this. I am
particularly perplexed by the hmin() size of 10^-11.
The size of my elements before refinement is hmin() = .015 and I allow a max
of 4 refinements in any element. Would there be any reason to expect an hmin of
order 10^-11 in this case?
Thanks,
Manav
WARNING: At least one element took more than 10 iterations to converge in
inverse_map()...
Rerun in devel/dbg mode for more details.
ERROR: Newton scheme FAILED to converge in 21 iterations in element 16514 for
physical point = (x,y,z)=( 0.27, 0.2775, 0)
Elem Information
id()=16514, processor_id()=2
type()=QUAD4
dim()=2
n_nodes()=4
0 Node id()=13234, processor_id()=4294967295, Point=(x,y,z)=( 0.27,
0.2775, 0)
DoFs=
1 Node id()=604, processor_id()=2, Point=(x,y,z)=(0.271875, 0.2775,
0)
DoFs=(0/0/13470) (0/1/13471) (0/2/13472) (0/3/13473) (0/4/13474)
(0/5/13475) (2/0/2245) (3/0/2245)
2 Node id()=13235, processor_id()=4294967295, Point=(x,y,z)=(0.271875,
0.2775, 0)
DoFs=
3 Node id()=13233, processor_id()=4294967295, Point=(x,y,z)=( 0.27,
0.2775, 0)
DoFs=
n_sides()=4
neighbor(0)=nullptr
neighbor(1)=nullptr
neighbor(2)=nullptr
neighbor(3)=nullptr
hmin()=9.89829e-11, hmax()=0.001875
volume()=1.85593e-13
active()=1, ancestor()=0, subactive()=0, has_children()=0
parent()=672
level()=4, p_level()=0
refinement_flag()=DO_NOTHING
p_refinement_flag()=DO_NOTHING
DoFs=
Exiting...
[2] src/fe/fe_map.C, line 1905, compiled Apr 20 2019 at 20:02:41
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