WRF v3 - Performance on Intel® Xeon® processor E5570 (code-named Nehalem) 2.93 GHz vs. Intel Xeon processor E5472 (code-named Harpertown) in SGI Altix ICE 8200EX.

WRF is 2.28x on 32 cores, 1.95x on 128 cores and respectively 1.51x on 512 cores faster on Intel Xeon processor E5570 (code-named Nehalem) 2.93GHz vs Intel Xeon processor E5472 (code-named Harpertown) 3.0 in SGI Altix ICE 8200EX.

WRF v3 - Performance on Intel Xeon processor E5570 (code-named Nehalem) 2.93 GHz vs. Intel Xeon processor E5472 (code-named Harpertown) in SGI Altix ICE 8200EX.

WRF is 2.5x on 64 cores, 2.34x on 256 cores and respectively 2.21x on 512 cores faster on Intel Xeon processor E5570 (code-named Nehalem) 2.93GHz vs HTN 3.0 in SGI Altix ICE 8200EX . This is a higher resolution model and requires more memory bandwidth than the 12km Conus.

WRF v3 - Performance on Intel Xeon processor E5570 (code-named Nehalem) 2.93 GHz in Turbo mode vs. Intel Xeon processor E5472 (code-named Harpertown) in SGI Altix ICE 8200EX.

WRF is 2.55x on 64 and 256 cores, and respectively 2.55x on 512 cores faster on Intel Xeon processor E5570 (code-named Nehalem) 2.93GHz with Turbo ON vs Intel Xeon processor E5472 (code-named Harpertown) 3.0 in SGI Altix ICE 8200EX . This is a higher resolution model and requires more memory bandwidth than the 12km Conus.