ok thanks for catching this Mike - I just gave it a try and the new IPA
propagated scalars into this function, which allowed for constant folding
of the indexing expressions, and effectively hid the underlying issue. With
disabled IPA, I'm able to reproduce this issue. Interestingly, it only
shows
this might indeed be an robustness issues of rmm which is a replication
based matrix multiply operator. I'll have a look. For the meantime, you can
increase your driver memory (you currently run w/ 1GB driver, resulting in
700MB local memory budget) to something like 10GB. This would allow a
