[petsc-users] interpolate staggered grid values in parallel

[Jed Brown]

Bishesh Khanal <bisheshkh at gmail.com> writes:
> Ok, I now see that KSPGetSolution(ksp, &x) gives a GLOBAL vector in x and
> not a local vector; hence the runtime memory error above since I can't
> access ghost values in indices such as [i-1] wth the global vec.
> Was there any reason not to make this information explicit in the docs to
> prevent the confusion I had ? Or should it have been obvious to me and that
> I'm missing something here ?

Adding to Dave's comment, KSP has no concept of a "local vector".  That
is a DM concept.
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