Rosetta: The Engine Behind Cray’s Slingshot Exascale-Era Interconnect

Re:Rosetta: The Engine Behind Cray’s Slingshot Exascale-Era ... by C1sc0cat on Wednesday May 06, 2020 @11:16AM (#23091887)

But with modelling having much more grunt allows you to use much better models for things like hydrodynamics modelling / weather simulations.

Which beats using a physical model and highspeed film projected onto a wall covered in graph paper and manually digitising data.

[ Parent | on HN ]

Re:Rosetta: The Engine Behind Cray’s Slingshot Exascale-Era ... by dekhn on Wednesday May 06, 2020 @11:20AM (#23091963)

if you can fit your model on a single GPU, do that, before parallelizing. Getting more grunt from tightly bound parallelism is one of the hardest problems in software engineering that there is. Weather prediction and climate modelling (two distinct fields in supercomputer) do qualify (you can't fit a high res model of earth in the ram of a single GPU).

[ Parent | on HN ]