[petsc-users] Petsc has generated inconsistent data - Divide by zero!

TAY wee-beng zonexo at gmail.com
Fri Jul 8 08:26:16 CDT 2011 

Hi Jed,

Sorry for the insufficient information. I am solving the NS eqns, fluids.

The full error output is:

[0]PETSC ERROR: --------------------- Error Message 
----------------------------
--------
[0]PETSC ERROR: Petsc has generated inconsistent data!
[0]PETSC ERROR: Divide by zero!
[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: 
C:\Obj_tmp\ibm2d_high_Re_wo_hypre_RK3\Debug\ibm2d_high_Re_wo_hyp
re.exe on a petsc-3.1 named EXPERIEN-33372E by Administrator Fri Jul 08 
14:11:50
  2011
[0]PETSC ERROR: Libraries linked from 
/cygdrive/c/Libs/petsc-3.1-p7_win32_cvf/li
b
[0]PETSC ERROR: Configure run at Thu Feb 10 02:42:16 2011
[0]PETSC ERROR: Configure options --with-cc="win32fe cl" 
--with-fc="win32fe f90"
  --download-f-blas-lapack=1 --with-mpi-dir=/cygdrive/c/Libs/MPICH2/ 
--prefix=/cy
gdrive/c/Libs/petsc-3.1-p7_win32_cvf --with-debugging=1 --useThreads=0
[0]PETSC ERROR: 
----------------------------------------------------------------
--------
[0]PETSC ERROR: KSPSolve_BCGS() line 75 in 
src/ksp/ksp/impls/bcgs/C:\Codes\PETSC
-~1.1-P\src\ksp\ksp\impls\bcgs\bcgs.c
[0]PETSC ERROR: KSPSolve() line 396 in 
src/ksp/ksp/interface/C:\Codes\PETSC-~1.1
-P\src\ksp\ksp\INTERF~1\itfunc.c
[0]PETSC ERROR: --------------------- Error Message 
----------------------------
--------
[0]PETSC ERROR: Petsc has generated inconsistent data!
[0]PETSC ERROR: Divide by zero!
[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: 
C:\Obj_tmp\ibm2d_high_Re_wo_hypre_RK3\Debug\ibm2d_high_Re_wo_hyp
re.exe on a petsc-3.1 named EXPERIEN-33372E by Administrator Fri Jul 08 
14:11:50
  2011
[0]PETSC ERROR: Libraries linked from 
/cygdrive/c/Libs/petsc-3.1-p7_win32_cvf/li
b
[0]PETSC ERROR: Configure run at Thu Feb 10 02:42:16 2011
[0]PETSC ERROR: Configure options --with-cc="win32fe cl" 
--with-fc="win32fe f90"
  --download-f-blas-lapack=1 --with-mpi-dir=/cygdrive/c/Libs/MPICH2/ 
--prefix=/cy
gdrive/c/Libs/petsc-3.1-p7_win32_cvf --with-debugging=1 --useThreads=0
[0]PETSC ERROR: 
----------------------------------------------------------------
--------
[0]PETSC ERROR: KSPSolve_BCGS() line 75 in 
src/ksp/ksp/impls/bcgs/C:\Codes\PETSC
-~1.1-P\src\ksp\ksp\impls\bcgs\bcgs.c
[0]PETSC ERROR: KSPSolve() line 396 in 
src/ksp/ksp/interface/C:\Codes\PETSC-~1.1
-P\src\ksp\ksp\INTERF~1\itfunc.c
[0]PETSC ERROR: --------------------- Error Message 
----------------------------
--------
[0]PETSC ERROR: Petsc has generated inconsistent data!
[0]PETSC ERROR: Divide by zero!
[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: 
C:\Obj_tmp\ibm2d_high_Re_wo_hypre_RK3\Debug\ibm2d_high_Re_wo_hyp
re.exe on a petsc-3.1 named EXPERIEN-33372E by Administrator Fri Jul 08 
14:11:50
  2011
[0]PETSC ERROR: Libraries linked from 
/cygdrive/c/Libs/petsc-3.1-p7_win32_cvf/li
b
[0]PETSC ERROR: Configure run at Thu Feb 10 02:42:16 2011
[0]PETSC ERROR: Configure options --with-cc="win32fe cl" 
--with-fc="win32fe f90"
  --download-f-blas-lapack=1 --with-mpi-dir=/cygdrive/c/Libs/MPICH2/ 
--prefix=/cy
gdrive/c/Libs/petsc-3.1-p7_win32_cvf --with-debugging=1 --useThreads=0
[0]PETSC ERROR: 
----------------------------------------------------------------
--------
[0]PETSC ERROR: KSPSolve_BCGS() line 75 in 
src/ksp/ksp/impls/bcgs/C:\Codes\PETSC
-~1.1-P\src\ksp\ksp\impls\bcgs\bcgs.c
[0]PETSC ERROR: KSPSolve() line 396 in 
src/ksp/ksp/interface/C:\Codes\PETSC-~1.1
-P\src\ksp\ksp\INTERF~1\itfunc.c
[0]PETSC ERROR: --------------------- Error Message 
----------------------------
--------
[0]PETSC ERROR: Petsc has generated inconsistent data!
[0]PETSC ERROR: Divide by zero!
[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: 
C:\Obj_tmp\ibm2d_high_Re_wo_hypre_RK3\Debug\ibm2d_high_Re_wo_hyp
re.exe on a petsc-3.1 named EXPERIEN-33372E by Administrator Fri Jul 08 
14:11:50
  2011
[0]PETSC ERROR: Libraries linked from 
/cygdrive/c/Libs/petsc-3.1-p7_win32_cvf/li
b
[0]PETSC ERROR: Configure run at Thu Feb 10 02:42:16 2011
[0]PETSC ERROR: Configure options --with-cc="win32fe cl" 
--with-fc="win32fe f90"
  --download-f-blas-lapack=1 --with-mpi-dir=/cygdrive/c/Libs/MPICH2/ 
--prefix=/cy
gdrive/c/Libs/petsc-3.1-p7_win32_cvf --with-debugging=1 --useThreads=0
[0]PETSC ERROR: 
----------------------------------------------------------------
--------
[0]PETSC ERROR: KSPSolve_BCGS() line 75 in 
src/ksp/ksp/impls/bcgs/C:\Codes\PETSC
-~1.1-P\src\ksp\ksp\impls\bcgs\bcgs.c
[0]PETSC ERROR: KSPSolve() line 396 in 
src/ksp/ksp/interface/C:\Codes\PETSC-~1.1
-P\src\ksp\ksp\INTERF~1\itfunc.c
  u,v exploded!

Hope this helps.

Yours sincerely,

TAY wee-beng


On 8/7/2011 2:37 PM, Jed Brown wrote:
> On Fri, Jul 8, 2011 at 07:27, TAY wee-beng <zonexo at gmail.com 
> <mailto:zonexo at gmail.com>> wrote:
>
>     I am trying to solve the momentum equation.
>
>
> fluids, solids, particles?
>
>     The 1st time step was ok, but at the 2nd, the error message is:
>
>     Petsc has generated inconsistent data - Divide by zero!
>
>
> Always send the full error output.
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