Dear All, I tried to run a simple mesh refinement from command line, it diddn't work.
I first run gmsh cubic.geo -3 -optimize -saveall then gmsh -refine cubic.msh I got error messages like ...... Warning : We don't have a valid parameter on curve 693-694 Warning : We don't have a valid parameter on curve 694-695 Warning : We don't have a valid parameter on curve 695-696 Warning : We don't have a valid parameter on curve 696-697 Warning : We don't have a valid parameter on curve 697-698 Warning : We don't have a valid parameter on curve 698-699 Warning : We don't have a valid parameter on curve 699-700 Warning : We don't have a valid parameter on curve 700-701 Warning : We don't have a valid parameter on curve 701-702 Warning : We don't have a valid parameter on curve 702-703 Warning : We don't have a valid parameter on curve 703-704 Warning : We don't have a valid parameter on curve 704-5 ...... Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot compute parametric coordinates on discrete face Error : Cannot evaluate point on discrete face [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger [0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/petsc-as/documentation/troubleshooting.html#Signal[0]PETSC ERROR: or try http://valgrind.org on linux or man libgmalloc on Apple to find memory corruption errors [0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run [0]PETSC ERROR: to get more information on the crash. [0]PETSC ERROR: --------------------- Error Message ------------------------------------ [0]PETSC ERROR: Signal received! [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Petsc Release Version 3.0.0, Patch 7, Mon Jul 6 11:33:34 CDT 2009 [0]PETSC ERROR: See docs/changes/index.html for recent updates. [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting. [0]PETSC ERROR: See docs/index.html for manual pages. [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: ./gmsh on a umfpack-c named math by luos Thu Jun 23 01:27:04 2011 [0]PETSC ERROR: Libraries linked from /home/geuzaine/src/petsc-3.0.0-p7/umfpack-cxx-opt/lib [0]PETSC ERROR: Configure run at Mon Jul 27 22:43:37 2009 [0]PETSC ERROR: Configure options --with-debugging=0 --with-scalar-type=complex --with-clanguage=cxx --with-shared=0 --with-mpi=0 --with-x=0 --with-fortran=1 --with-umfpack=1 --download-umfpack=ifneeded [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: User provided function() line 0 in unknown directory unknown file Aborted (core dumped) The following is my cubic.geo xmin=-300; xmax=-xmin; ymin=-300; ymax=-ymin; zmin=-300; zmax=-zmin; cl=10; Point(1)={xmin,ymin,zmin,cl}; Point(2)={xmax,ymin,zmin,cl}; Point(3)={xmax,ymax,zmin,cl}; Point(4)={xmin,ymax,zmin,cl}; Point(5)={xmin,ymin,zmax,cl}; Point(6)={xmax,ymin,zmax,cl}; Point(7)={xmax,ymax,zmax,cl}; Point(8)={xmin,ymax,zmax,cl}; Line(1)={1,2}; Line(2)={2,3}; Line(3)={3,4}; Line(4)={4,1}; Line(5)={1,5}; Line(6)={2,6}; Line(7)={3,7}; Line(8)={4,8}; Line(9)={5,6}; Line(10)={6,7}; Line(11)={7,8}; Line(12)={8,5}; Line Loop(1)={1,2,3,4}; Line Loop(2)={9,10,11,12}; Line Loop(3)={4,5,-12,-8}; Line Loop(4)={2,7,-10,-6}; Line Loop(5)={1,6,-9,-5}; Line Loop(6)={-3,7,11,-8}; Plane Surface(1)={1}; Plane Surface(2)={2}; Plane Surface(3)={3}; Plane Surface(4)={4}; Plane Surface(5)={5}; Plane Surface(6)={6}; Surface Loop(1)={1,4,2,3,5,6}; Volume(1)={1}; Please let me know what went wrong. Thanks. ST
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