Molecular Dynamics (LAMMPS) 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 -OPT:Ofast -OPT:rsqrt=2 -march=bdver1 -mavx -mfma4

2 x AMD Opteron™ processors Model 6380 in Supermicro H8DGT server, 64GB (8 x 8GB DDR3-1600) memory, SuSE Linux® Enterprise Server 11 SP2 64-bit, GCC 4.7.0 Compiler, OMPI 1.5.3
Compiler Flags: -O3 -freciprocal-math -march=bdver1 -mavx -mfma4

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+knem 0.9.8, Hyper-Threading disabled, Turbo Boost Technology enabled
Compiler Flags: -O3 -fno-alias -ip -unroll0 -no-prec-div

The results above are based on measurements in AMD labs as of October 16, 2012. Pricing reflects planned AMD 1kU tray pricing and Intel 1kU tray pricing on www.intel.com as of October 16, 2012, and is subject to change.