Table 3 Speed and energy cost of inference with ACE2 and the physics-based SHiELD model

From: ACE2: accurately learning subseasonal to decadal atmospheric variability and forced responses

Model

Simulated years per day

Energy cost per simulated year [Wh]

Hardware

ACE2

1500

11.2

1 NVIDIA H100-80GB-HBM

C24 SHiELD

22.1

300

54 cores on 1 AMD EPYC 7H12

C96 SHiELD

11.4

8250

864 cores on 14 AMD EPYC 7H12

  1. ACE2 and C96 SHiELD both have about 1° horizontal resolution while C24 SHiELD has about 4° resolution but is still more than an order of magnitude more energy-intensive than ACE2.