[petsc-users] understanding the LSC preconditioner

Jed Brown jed at jedbrown.org
Fri Feb 24 08:22:53 CST 2017


David Nolte <dnolte at dim.uchile.cl> writes:

> At the moment it's not possible for me to rebuild python with the proper
> configuration for valgrind (--without-pymalloc --with-valgrind). I'm not
> sure how useful the output is now. I can't say I get it... you can find
> it in the attachment, if you want to take a look.

Oh, the joys of mixed-language memory debugging...

You can build PETSc and your code with -fstack-protector
-fsanitize=address to hopefully find the memory corruption.
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