[HPGMG Forum] Execution heterogeneity

Jed Brown jed at jedbrown.org
Wed Apr 30 17:52:30 UTC 2014


Brian Van Straalen <bvstraalen at lbl.gov> writes:

> I’m wondering where users can insert heterogeneity in the
> execution…which seems a big coming issue.

You mean unavoidable/unpredictable divergence between vector lanes (such
as appears with iterative solves in Riemann solvers, material models,
etc)?  I wrote my thoughts on that here:

  https://hpgmg.org/fe/#linear-or-nonlinear

I'd love to hear ideas about how to incorporate this into a benchmark.
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