[petsc-users] ksp/examples/tutorials/Ex2.c: good with with-debugging but error without-debugging

[Mengda Wu]

Hi all,

    I just compiled the debugged and optimized versions of petsc-3.1-p7.
Both are successful. I am running on Windows Vista 64bit machine.
The C/C++ compiler is cl.exe from visual studio 2005 (64 bit) and no FORTRAN
compiler is used. BLAS/LAPACK
support comes from Intel MKL-10.1.3.028 (under em64t\lib). No MPI is used.

   The debugged petsc was configured with:
   $ ./config/configure.py --with-cc='cl' --with-fc=0  --with-cxx='cl'
--with-mpi=
0
--with-blas-lapack-lib=[mkl_intel_lp64.lib,mkl_intel_thread.lib,mkl_core.lib
,libiomp5mt.lib] -CFLAGS='-MDd -W3 -Z7' -CXXFLAGS='-MDd -W3 -Z7'

   The optimized petsc was configured with:
   $ ./config/configure.py --with-cc='cl' --with-fc=0  --with-cxx='cl'
--with-mpi=
0 --with-debugging=0
--with-blas-lapack-lib=[mkl_intel_lp64.lib,mkl_intel_threa
d.lib,mkl_core.lib,libiomp5mt.lib]  -CFLAGS='-MD -wd4996 -O2' -CXXFLAGS='-MD
-w
d4996 -O2'

   When I run ksp/examples/tutorials/Ex2.c. The result with debugged petsc
is
=================================================================
   Norm of error 0.000156044 iterations 6
=================================================================

   However, there are errors with the optimized petsc with the output as
follows:
=================================================================
[0]PETSC ERROR: --------------------- Error Message
----------------------------
--------
[0]PETSC ERROR: Nonconforming object sizes!
[0]PETSC ERROR: Mat mat,Vec y: global dim 56 57!
[0]PETSC ERROR:
----------------------------------------------------------------
--------
[0]PETSC ERROR: Petsc Release Version 3.1.0, Patch 7, Mon Dec 20 14:26:37
CST 20
10
[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:
D:\Develop\Test\PETSc\petsc-3.1-p7\src\ksp\ksp\examples\tutorial
s\ex2.exe on a cygwin-c- named CVBRL-38 by mengda Mon Jan 17 00:35:15 2011
[0]PETSC ERROR: Libraries linked from
/cygdrive/d/Develop/Test/PETSc/petsc-3.1-p
7/cygwin-c-opt/lib
[0]PETSC ERROR: Configure run at Sun Jan 16 23:34:25 2011
[0]PETSC ERROR: Configure options --with-cc=cl --with-fc=0 --with-cxx=cl
--with-
mpi=0 --with-debugging=0
--with-blas-lapack-lib="[mkl_intel_lp64.lib,mkl_intel_t
hread.lib,mkl_core.lib,libiomp5mt.lib]" -CFLAGS="-MD -wd4996 -O2"
-CXXFLAGS="-MD
 -wd4996 -O2" --useThreads=0
[0]PETSC ERROR:
----------------------------------------------------------------
--------
[0]PETSC ERROR: MatMult() line 1888 in
src/mat/interface/D:\Develop\Test\PETSc\P
ETSC-~1.1-P\src\mat\INTERF~1\matrix.c
[0]PETSC ERROR: main() line 146 in
src/ksp/ksp/examples/tutorials/D:\Develop\Tes
t\PETSc\PETSC-~1.1-P\src\ksp\ksp\examples\TUTORI~1\ex2.c

This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
=================================================================

   I am wondering what problems may lead to the errors. Please let me know
if you need more
information.

Thanks,
Mengda
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