Hi guys,
I am have been using Gmsh for an year or so with very good results (and I am
very grateful to the developers for the wonderful work).
Recently, I switched to version 2.6 (from 2.5) and I found that for some of the
models the meshing time is much increased.
The main reason for this is the large amount of output that Netgen generates.
Basically, Netgen outputs loads of the following Info:
…
Info : Freezone:
Info : (0, 0, 0)
Info : (1.2, -5.5e-17, -3.1e-17)
Info : (-0.45, 1, 2.9e-18)
Info : (-2.3, 1.2, -0.31)
Info : (-0.54, 0.74, -0.1)
Info : (-0.96, 0.74, -0.1)
Info : (-0.38, 0.38, -0.1)
Info : Mapping found!!: Rule Tetrahedron Vis a Vis Point with 3 edges (1)
Info : 3 1 2 7
Info : 3 = 3
…
Here are some results for one of the models:
Gmsh 2.5 -> ~ 6 sec
Gmsh 2.6 with output redirected to file à ~ 11 sec
Gmsh 2.6 with output redirected to /dev/nullà ~ 8 sec
Gmsh 2.6 with manually editingcontrib/Netgen/nglib_gmsh.cpp by commenting line
75 (//testout = new ostream(new mystreambuf());) and un-commenting line 66
(testout = new ofstream ("test.out");) à ~ 5 sec
So basically, in this case, the extra verbosity from netgen makes the mesher
take twice as much.
I have other cases where the increase is much larger.
My question (and wish) is: would it be possible to connect this output to the
Gmsh verbosity argument (-v)?
I would be quite happy to (at least try to) add this functionality myself
should somebody tell me how could I get access the verbosity value from
contrib/Netgen/nglib_gmsh.cpp .
Thanks in advance,
Serban
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