[petsc-users] KSPSetUp with PETSc/MUMPS

[Constantin Nguyen Van]

Hi,

I'm a new user of PETSc and I try to use it with MUMPS functionalities 
to compute a nullbasis.
I wrote a code where I compute 4 times the same nullbasis. It does work 
well when I run it with several procs but with only one processor I get 
an error on the 2nd iteration when KSPSetUp is called. Furthermore when 
it is run with a debugger ( --with-debugging=yes), it works fine with 
one or several processors.
Have you got any idea about why it doesn't work with one processor and 
no debugger?

Thanks.
Constantin.

PS: You can find the code and the files required to run it enclosed.