Weather Research and Forecasting (WRF) Cluster Performance – Two-Socket Servers

Configuration Information:

2 x AMD Opteron™ processors Model 6276 in Supermicro H8DGT server, 64GB (8 x 8GB DDR3-1600) memory, SuSE Linux® Enterprise Server 11 SP1 64-bit, x86 Open64 4.2.5.2-1 Compiler Suite, OMPI 1.5.3
Compiler Flags: -O3 -HP -march=bdver1 -mavx -mfma4 -DpgiFortran -OPT:unroll_size=256 -LNO:blocking=off -LANG:copyinout=off -GRA:prioritize_by_density=on -CG:load_exe=1 -WOPT:sib=on -OPT:Olimit=50000

2 x AMD Opteron™ processors Model in Supermicro H8DGT server, 64GB (8 x 8GB DDR3-1600) memory, SuSE Linux® Enterprise Server 11 SP1 64-bit, x86 Open64 4.5.2 Compiler Suite, OMPI 1.6.0
Compiler Flags: -HP -march=bdver1 -mavx -mfma4 -ipa -OPT:Olimit=50000 -g -O2

2 x Intel Xeon processors Model E5-2690 in Supermicro X9DRT-HIBFF server, 64GB (8 x 8GB DDR3-1600) memory, SuSE Linux® Enterprise Server 11 SP2 64-bit, Intel Professional Compiler v12.1.3, OMPI 1.6.0, Hyper-Threading disabled, Turbo Boost Technology enabled
Compiler Flags: Default compiler flags for ICC

Footnotes