Re: [petsc-users] KSPSetUp with PETSc/MUMPS

[Barry Smith]

First run with valgrind http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind On May 25, 2016, at 2:35 AM, Constantin Nguyen Van <constantin.nguyen....@openmailbox.org> wrote: 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.