GEOS-5 Run-Time Characteristics: Difference between revisions

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! scope="col" | CPUs (typical)
! scope="col" | CPUs (typical)
! scope="col" | WallClock Hours
! scope="col" | WallClock Hours
! scope="col" | CPU Hours
! scope="col" | CPU Hours (Westmere)
! scope="col" | Data Volume (typical)
! scope="col" | Data Volume (typical)
! scope="col" | Notes
! scope="col" | Notes
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|48
|48
|0.25 hours/10-Days
|0.25 hours/10-Days
|2.75 hours/10-Days
|12 hours/10-Days
|3 Gb/10-Days
|3 Gb/10-Days
|Highly depends on fields saved
|Highly depends on fields saved
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|96
|96
|0.5 hours/10-Days
|0.5 hours/10-Days
|6 hours/10-Days
|48 hours/10-Days
|13 Gb/10-Days
|13 Gb/10-Days
|Highly depends on fields saved
|Highly depends on fields saved
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|384
|384
|1 hour/10-Days
|1 hour/10-Days
|11.5 hours/10-Days
|384 hours/10-Days
|52 Gb/10-Days
|52 Gb/10-Days
|Highly depends on fields saved
|Highly depends on fields saved
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|768
|768
|4.75 hours/10-Days
|4.75 hours/10-Days
|55.5 hours/10-Days
|3648 hours/10-Days
|288 Gb/10-Days
|288 Gb/10-Days
|Highly depends on fields saved
|Highly depends on fields saved

Revision as of 13:07, 4 May 2012

Application (AMIP-Style simulation, climatology aerosols) Resolution CPUs (typical) WallClock Hours CPU Hours (Westmere) Data Volume (typical) Notes
GEOS-5 AGCM (Ganymed Tag, FV Lat/Lon Dynamical Core) b72 (2-deg) 48 0.25 hours/10-Days 12 hours/10-Days 3 Gb/10-Days Highly depends on fields saved
GEOS-5 AGCM (Ganymed Tag, FV Lat/Lon Dynamical Core) c72 (1-deg) 96 0.5 hours/10-Days 48 hours/10-Days 13 Gb/10-Days Highly depends on fields saved
GEOS-5 AGCM (Ganymed Tag, FV Lat/Lon Dynamical Core) d72 (0.5-deg) 384 1 hour/10-Days 384 hours/10-Days 52 Gb/10-Days Highly depends on fields saved
GEOS-5 AGCM (Ganymed Tag, FV Lat/Lon Dynamical Core) e72 (0.25-deg) 768 4.75 hours/10-Days 3648 hours/10-Days 288 Gb/10-Days Highly depends on fields saved
GEOS-5 AGCM (Ganymed Tag, FV Cubed-Sphere Dynamical Core) c720 x 72L (14-km) 1350 8 hours/10-Days 10800/10-Days 832 Gb/10-Days Highly depends on fields saved
GEOS-5 AGCM (Ganymed Tag, FV Cubed-Sphere Dynamical Core) c1440 x 72L (7-km) 4000 22 hours/10-Days 88000/10-Days 3328 Gb/10-Days Highly depends on fields saved


Scaling for GEOS-5 (10 Days @ 1/2-deg)

FV-Cubed: C180 x 72L => 180 x 1080 x 72 = 194400 x 72


FV-Cubed: C180 x 72L => 180 x 1080 x 72 = 194400 x 72
Layout NX Layout NY Total PEs Total Time (hrs) Dynamics Time Physics Time Dynamics Percent Physics Percent
6 36 216 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%


FV-LatLon: d72 => 576 x 361 x 72 = 207936 x 72
Layout NX Layout NY Total PEs Total Time (hrs)
6 36 216 1.72
8 48 384 1.21
12 72 864 0.72


Layout Scaling Comparison for GEOS-5 FV-LatLon (10 Days @ 1/2-deg)

FV-LatLon: d72 => 576 x 361 x 72 = 207936 x 72
Layout NX Layout NY Total PEs Total Time (hrs)
4 96 384 1.59
6 64 384 1.17 <= Sweet Spot
8 48 384 1.21
12 32 384 1.20
16 24 384 1.27
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