Hello! I built GMSH-2.6.1 with options: Ann Bamg Bfgs Blas Blossom Chaco
DIntegration Dlopen FlTree Fltk GMP Gmm Have64BitSizeT Jpeg Kbipack
Lapack MPI MathEx Mesh Metis Mmg3d Mpeg NativeFileChooser Netgen OSMesa
OneLab OpenGL OptHom PETSc Parser Plugins Png Post RTree SLEPc Solver
Tetgen(1.5) Voro3D Zlib.
I have a file:
----------
cl = 0.25;
R = 1;
P_c = newp; Point (P_c) = {0, 0, 0, cl};
P_sm = newp; Point (P_sm) = {0, R, 0, cl};
temp_mas[] = Rotate {{ 0, 0, 10},{0, 0, 0}, -2*Pi/3} { Duplicata {
Point{P_sm}; } };
P_s1 = newp; P_s1 = temp_mas[0];
temp_mas[] = Rotate {{ 0, 0, 10},{0, 0, 0}, 2*Pi/3} { Duplicata {
Point{P_sm}; } };
P_s2 = newp; P_s2 = temp_mas[0];
Circ_s_1 = newreg; Circle (Circ_s_1) = {P_s1, P_c, P_s2};
Circ_s_2 = newreg; Circle (Circ_s_2) = {P_s2, P_c, P_sm};
Circ_s_3 = newreg; Circle (Circ_s_3) = {P_sm, P_c, P_s1};
line_loop_s = newreg; Line Loop (line_loop_s) = {Circ_s_1,
Circ_s_2, Circ_s_3};
Surface_s = newreg; Plane Surface (Surface_s) = {line_loop_s};
ee = 0;
tt[] = Extrude {0, 0, 2} {Surface{Surface_s};};
For kk In {2:4}
side[ee] = tt[kk];
ee++;
EndFor
in_vol = tt[1];
Surface_en = tt[0];
/*
R_ex = 5*R;
P_c_ex = newp; Point (P_c_ex) = {0, 0, -5, cl};
P_sm_ex = newp; Point (P_sm_ex) = {0, R_ex, -5, cl};
temp_mas[] = Rotate {{ 0, 0, 10},{0, 0, 0}, -2*Pi/3} { Duplicata {
Point{P_sm_ex}; } };
P_s1_ex = newp; P_s1_ex = temp_mas[0];
temp_mas[] = Rotate {{ 0, 0, 10},{0, 0, 0}, 2*Pi/3} { Duplicata {
Point{P_sm_ex}; } };
P_s2_ex = newp; P_s2_ex = temp_mas[0];
Circ_s_1_ex = newreg; Circle (Circ_s_1_ex) = {P_s1_ex, P_c_ex,
P_s2_ex};
Circ_s_2_ex = newreg; Circle (Circ_s_2_ex) = {P_s2_ex, P_c_ex,
P_sm_ex};
Circ_s_3_ex = newreg; Circle (Circ_s_3_ex) = {P_sm_ex, P_c_ex,
P_s1_ex};
line_loop_s_ex = newreg; Line Loop (line_loop_s_ex) = {Circ_s_1_ex,
Circ_s_2_ex, Circ_s_3_ex};
Surface_s_ex = newreg; Plane Surface (Surface_s_ex) = {line_loop_s_ex};
ee = 0;
tt[] = Extrude {0, 0, 12} {Surface{Surface_s_ex};};
For kk In {2:4}
side_ex[ee] = tt[kk];
ee++;
EndFor
ex_vol = tt[1];
Surface_ex_en = tt[0];
*/
esp = newreg; Surface Loop (esp) = {Surface_s,Surface_en,
/*Surface_s_ex, Surface_ex_en, side_ex[],*/ side[]};
bv = newreg; Volume(bv) = {esp};
air_vol = newreg;
Physical Volume (air_vol)= {bv};
-----------------
If I use the command "gmsh example.geo -3 -optimize_netgen" with this
file, that all good, but if I uncomment the second part of the file
(delete two "/* */" areas), the gmsh crashes with message "Segmentation
fault (core dumped)". See log:
----------
gmsh compound.geo -3 -optimize_netgen
Info : Running 'gmsh compound.geo -3 -optimize_netgen' [1 node(s),
max. 1 thread(s)]
....
....
Info : 0.95 - 1: 0
Info : total error: 0
Info : Optimizing volume 46
Info : CalcLocalH: 12839 Points 51211 Elements 19804 Surface Elements
Info : Remove Illegal Elements
Info : 763 illegal tets
Info : SplitImprove
Info : badmax = 5.14894e+35
Segmentation fault
-----------
Also, if I use MMG3D the gmsh crashes too in any case:
-----
Info : 13998 points 0 edges and 19804 faces in the final mesh
-- MMG3d, Release 4.0 c (July 20, 2010)
Copyright (c) LJLL/IMB, 2010
Jeu 26 avr 2012 18:59:04 CEST
-- MESH QUALITY 55459
AVERAGE QUALITY 2.2162
BEST ELEMENT QUALITY 1.0053
WORST ELEMENT QUALITY 20.7485
WORST ELEMENT 29349 (29349) 12717 12268 7876 13953
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MODULE MMG3D-LJLL/IMB : 4.0 c (July 20, 2010) ANISO
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MAXIMUM NUMBER OF POINTS (NPMAX) : 1000000
MAXIMUM NUMBER OF TRIANGLES (NTMAX) : 700000
MAXIMUM NUMBER OF ELEMENTS (NEMAX) : 7000000
** WARNING: -18484 NON-BOUNDARY TRIANGLES : SEVERAL SD CONSIDERED
(19144 660)
## memory alloc problem (hash)
*** glibc detected *** gmsh: free(): invalid next size (normal):
0x0000000002c49ef0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x7ec96)[0x7fc56a137c96]
/usr/lib/libmmg3dlib4.0.so(M_free+0x4d)[0x7fc56ce9cb4d]
/usr/lib/libmmg3dlib4.0.so(MMG_seedTria+0x1ea)[0x7fc56ce9a3ba]
/usr/lib/libmmg3dlib4.0.so(MMG_markBdry+0x2e1)[0x7fc56ce9a741]
/usr/lib/libmmg3dlib4.0.so(MMG_mmg3dlib+0x3b9)[0x7fc56cebce39]
gmsh(_Z13refineMeshMMGP7GRegion+0xfdb)[0x7b4d5b]
gmsh(_Z18MeshDelaunayVolumeRSt6vectorIP7GRegionSaIS1_EE+0x1409)[0x796e09]
gmsh(_Z12GenerateMeshP6GModeli+0xf06)[0x72cfe6]
gmsh(_ZN6GModel4meshEi+0x9)[0x642a29]
gmsh(_Z9GmshBatchv+0x237)[0x556617]
gmsh(main+0x6c)[0x54c74c]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fc56a0da76d]
gmsh[0x555e81]
---
or:
----
Info : 387 points 0 edges and 660 faces in the final mesh
-- MMG3d, Release 4.0 c (July 20, 2010)
Copyright (c) LJLL/IMB, 2010
Jeu 26 avr 2012 18:59:04 CEST
-- MESH QUALITY 1223
AVERAGE QUALITY 1.6383
BEST ELEMENT QUALITY 1.0241
WORST ELEMENT QUALITY 5.9574
WORST ELEMENT 836 (836) 333 266 220 254
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MODULE MMG3D-LJLL/IMB : 4.0 c (July 20, 2010) ANISO
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MAXIMUM NUMBER OF POINTS (NPMAX) : 1000000
MAXIMUM NUMBER OF TRIANGLES (NTMAX) : 700000
MAXIMUM NUMBER OF ELEMENTS (NEMAX) : 7000000
9 INSERTED 42 REMOVED 38 FILTERED
-- MESH QUALITY 947
AVERAGE QUALITY 2.1583
BEST ELEMENT QUALITY 1.0246
WORST ELEMENT QUALITY 6.7119
WORST ELEMENT 977 (740) 56 331 335 371
-- RESULTING EDGE LENGTHS 641
AVERAGE LENGTH 1.2642
SMALLEST EDGE LENGTH 0.1170 312 96
LARGEST EDGE LENGTH 2.8640 335 88
EFFICIENCY INDEX 0.7482
0.71 < L < 1.41 353 55.07 %
-- ANISOTROPIC RATIO OBTAINED 947
AVERAGE RATIO 3.4648
SMALLEST RATIO 1.2476
LARGEST RATIO 13.3372
ELEMENT 969 (733) 56 335 156 371
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
END OF MODULE MMG3D
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
Info : MMG3D succeeded (ITER=0) 355 vertices 947 tetrahedra
-- MMG3d, Release 4.0 c (July 20, 2010)
Copyright (c) LJLL/IMB, 2010
Jeu 26 avr 2012 18:59:04 CEST
-- MESH QUALITY 947
AVERAGE QUALITY 2.1583
BEST ELEMENT QUALITY 1.0246
WORST ELEMENT QUALITY 6.7119
WORST ELEMENT 740 (740) 56 303 307 341
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MODULE MMG3D-LJLL/IMB : 4.0 c (July 20, 2010) ANISO
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
MAXIMUM NUMBER OF POINTS (NPMAX) : 1000000
MAXIMUM NUMBER OF TRIANGLES (NTMAX) : 700000
MAXIMUM NUMBER OF ELEMENTS (NEMAX) : 7000000
-- MESH QUALITY 947
AVERAGE QUALITY 2.1518
BEST ELEMENT QUALITY 1.0246
WORST ELEMENT QUALITY 6.7119
WORST ELEMENT 740 (736) 56 303 307 341
-- RESULTING EDGE LENGTHS 641
AVERAGE LENGTH 1.6228
SMALLEST EDGE LENGTH 0.1316 344 341
LARGEST EDGE LENGTH 4.5027 242 102
EFFICIENCY INDEX 0.7014
0.71 < L < 1.41 264 41.19 %
-- ANISOTROPIC RATIO OBTAINED 947
AVERAGE RATIO 3.4552
SMALLEST RATIO 1.2476
LARGEST RATIO 13.3372
ELEMENT 733 (729) 56 307 144 341
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
END OF MODULE MMG3D
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
Info : MMG3D succeeded (ITER=1) 355 vertices 947 tetrahedra
## SEGMENTATION FAULT. STOP
----------
What I doing wrong?
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