You're right, but in fact the files Make.common and libmesh_config didnt change before and after the re-run of configure. It seems though that I have to use the same compiler for petsc and libmesh. How do I know which of gcc or g++ is used for each of them, because the two compilers are possible for both in their Makefile.
Thanks Stephane -----Message d'origine----- De : John Peterson [mailto:[EMAIL PROTECTED] Envoyé : mercredi 5 mars 2008 16:38 À : TCHOUANMO Stephane DOCTORANT Cc : [email protected] Objet : Re: nonlinear solver in libmesh library On Wed, Mar 5, 2008 at 8:17 AM, TCHOUANMO Stephane DOCTORANT <[EMAIL PROTECTED]> wrote: > Hi, > > Im back again with the petsc non linear solver in Libmesh. I'm trying to > make it run under a Red Hat WS 4. > First I installed one of the last different versions of Petsc (2.3.3, 2.3.2 > and 2.3.1) in the Libmesh directory and it worked. After that, I changed the > "Make.common" in Libmesh to enable the option package Petsc, giving infos > about the version, minor-major, petsc-arch and petsc-dir. Then I got into > "libmesh.config" to define petsc as a solver to be used by setting: "#define > HAVE_PETSC 1". Finally I configured Libmesh and compiled it with the > sequences: "./configure" and "make". OK, that is a problem: Once you re-run configure, you blow away any changes you might have made to Make.common or libmesh_config.h. Those 2 files are auto-generated during the configure process. -J Everything went well and the file "libmesh.so" got created. > Now Im trying to run a basic example given in Libmesh like "ex3". When I > lauch "make run", I get a warning and one error which are: > > ------------------------------------------------------------------------------------------------------- > > /home/tchouanm/libmesh-lma/contrib/tecplot/lib/i686-pc-linux-gnu/tecio.a(tecxxx.o)(.text+0x1a7): > In function `tecini': > : warning: the use of `mktemp' is dangerous, better use `mkstemp' > > /home/tchouanm/libmesh-lma/lib/i686-pc-linux-gnu_opt/libmesh.so: undefined > reference to `std::basic_istream<char, std::char_traits<char> > >::ignore()@GLIBCXX_3.4.5' > collect2: ld returned 1 exit status > make: *** [ex3] Erreur 1 > > ------------------------------------------------------------------------------------------------------- > > It seems like there's something wrong in "libmesh.so" but I cant understand > why. What's the cause of the "undefined reference..." ? > > Thank's a lot for your help. > Regards, > > Stephane. > > > > -----Message d'origine----- > De : John Peterson [mailto:[EMAIL PROTECTED] > Envoyé : jeudi 21 février 2008 17:20 > À : TCHOUANMO Stephane DOCTORANT; [email protected] > Objet : nonlinear solver in libmesh library > > Hi, > > Yes, we have run the PETSc nonlinear solver before. Before we can > help you, it seems you will need to ask a specific question, provide > the exact error messages you are getting (translated to English where > appropriate) and also tell us what you have tried doing to fix the > problem so far. > > Also, I copied your email to the libmesh-users list. This is the best > place to get answers (better than just asking 1 of the developers) and > it automatically archives the discussions so they can potentially help > out others later. > > -J > > TCHOUANMO Stephane DOCTORANT writes: > > Hi John, > > > > Once again I'm coming back to you to have some infos on Libmesh. > > Have you ever tried to run the non linear solver PETSC or any other > > nonlinear solver in Libmesh? I know that the code is supposed to > > work with PETSC's non linear solver and tried to make it run in > > vain. So I was wondering if you had experienced it in the past so > > you could help me out. I have errors basically on MPI in Libmesh > > and I really don't understand what the deal with PETSC is. Do you > > have any idea about running PETSC in the code? > > > > Thanks a lot. > > > > Stéphane > > > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
