This PR (modified from #489) adds GPU support for multipass interpolations.
Co-authored-by: ulrikeyang <ulrikey@rzansel61.coral.llnl.gov>
Co-authored-by: Ulrike Yang <yang11@llnl.gov>
Co-authored-by: ulrikeyang <ulrikey@rzansel41.coral.llnl.gov>
Co-authored-by: ulrikeyang <ulrikey@rzansel19.coral.llnl.gov>
Co-authored-by: ulrikeyang <ulrikey@rzansel16.coral.llnl.gov>
Co-authored-by: ulrikeyang <ulrikey@rzansel46.coral.llnl.gov>
Co-authored-by: Paul T. Bauman <ptbauman@gmail.com>
Co-authored-by: Ruipeng Li <coe0141@redwood.cm.cluster>