dolfin team mailing list archive

[Matthew Knepley <knepley@xxxxxxxxxxx>]

Faheem Mitha <faheem@xxxxxxxxxxxxx> writes:
> Hi,
>
> I modified the PETSc build.
>
> However, I have now encountered another problem. Here are steps to reproduce:
>
> 1) Install PETSc using my Debian package.
>
> 2) Compile DOLFIN against this package, using
>
> ./configure --with-petsc-dir=/usr/lib/petsc-2.2.1
>
> 2) When I try running the demos (in src/demos) in the DOLFIN source tree, I get link errors, which appear to be that
> something thinks that the PETSc libraries are still where they were built, namely
>
> /usr/local/src/petsc/petsc/petsc-2.2.1/debian/tmp/usr/lib/petsc-2.2.1/
>
> I'm not sure what is causing this problem or how to resolve it. The easist thing would be if one of the DOLFIN
> developers could repeat the above steps to reproduce the problem.

  If you use dynamic libraries with PETSc, then the load paths are compiled in (you can
redirect them with command-line arguments, but this is the default). Thus, moving them
from the directory into which the package installs them breaks the load. There a couple
ways to fix this. I will think about it (since I have to leave for dinner now).

     Matt

> Thanks.                                                         Faheem.
>
>
> *************************************************************************
> sarge1-root)faheem@io:/usr/local/src/dolfin/dolfin-0.5.7/src/demo/fem$ ./dolfin-fem
> Reading mesh from file "tetrahedron.xml.gz".
> Computing mesh connectivity:
>    Found 4 nodes
>    Found 1 cells
>    Created 6 edges
>    Created 4 faces
>    Sorting mesh entities locally.
> Initializing PETSc (ignoring command-line arguments).
> --------------------------------------------------------------------------
> Petsc Version 2.2.1, Patch 42, Released August, 18, 2004
> See docs/changes/index.html for recent updates.
> See docs/troubleshooting.html for hints about trouble shooting.
> See docs/index.html for manual pages.
> -----------------------------------------------------------------------
> unknown on a linux-gnu named io by faheem Tue Jul  5 21:39:04 2005
> Libraries linked from /usr/local/src/petsc/petsc/petsc-2.2.1/lib/libg_c++/linux-gnu
> -----------------------------------------------------------------------
> [0]PETSC ERROR: PetscInitialize_DynamicLibraries() line 64 in src/sys/src/dll/reg.c
> [0]PETSC ERROR: Unable to open file!
> [0]PETSC ERROR: Unable to locate PETSc dynamic library
> /usr/local/src/petsc/petsc/petsc-2.2.1/debian/tmp/usr/lib/petsc-2.2.1/lib/libg_c++/linux-gnu/libpetsc
>   You cannot move the dynamic libraries!
>   or remove USE_DYNAMIC_LIBRARIES from ${PETSC_DIR}/bmake/$PETSC_ARCH/petscconf.h
>   and rebuild libraries before moving!
> [0]PETSC ERROR: PetscInitialize() line 446 in src/sys/src/objects/pinit.c
> [0]PETSC ERROR: ClassRegLogGetClass() line 290 in src/sys/src/plog/classLog.c
> [0]PETSC ERROR: Invalid argument!
> [0]PETSC ERROR: Invalid object cookie 0!
> [...]
>
>
>

-- 
"Failure has a thousand explanations. Success doesn't need one" -- Sir Alec Guiness