GEOS-5 Run-Time Characteristics for Ganymed 4.0

Revision as of 04:29, 22 September 2014 by Mathomp4 (talk | contribs) (Scaling for Cubed-Sphere Version at C180 (1/2 deg): Change sizes for small-layout)

Performance at various resolutions

Results for a 10-day AMIP-Style simulation at 72 levels using MERRA2 GOCART aerosols and running Ganymed-4_0 on Sandy Bridge CPUs
Resolution CPUs (typical) WallClock Time (Hours) CPU Time (Hours) Data Volume (Gbytes) Notes
C48 (2-deg) 96 Highly depends on fields saved
C90 (1-deg) 96 Highly depends on fields saved
C180 (0.5-deg) 384 Highly depends on fields saved
C360 (0.25-deg) 864 Highly depends on fields saved
c720 (14-km) 1536 Highly depends on fields saved
c1440 (7-km) Highly depends on fields saved
c2880 (3.5-km) Highly depends on fields saved

Scaling for Cubed-Sphere Version at C180 (1/2 deg)

Layout NX Layout NY Total PEs Total Time (hrs) Dynamics Time Physics Time Dynamics Percent Physics Percent
6 40 240 1.49 0.34 1.15 23.02% 76.98%
8 48 384 0.61 0.15 0.46 24.58% 75.42%
12 72 864 0.35 0.12 0.22 35.18% 64.82%