<div class="gmail_quote">On Fri, Aug 31, 2012 at 10:06 PM, Matthew Knepley <span dir="ltr"><<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div id=":3dm">True, but the backtrace also shows that comm = 0x0 on the call to KSPCreate(), which<div>leads me to believe that your petsc4py has not initialized PETSc, and therefor not</div><div>initialized PETSC_COMM_WORLD.</div>
</div></blockquote></div><br><div>Could catch, maybe PetscFunctionBegin() should check that PETSc has been initialized.</div>