Hi All i'm currently running SMP with 4 CPUs and would like to understand if any user out there tried >4 CPUs with SMP version for actual application? and what is the scaling performance?

Yes, and have seen up to 3.5X speed up with 8 CPU's.

Melissa have you tested with actual application? what kind of physic is involved?

The performance of the SMP code varies depending on the models activated. We've benchmarked FLOW-3D on a dual/quad Intel Harpertown 2.8 GHz Xeon 5462 w/1600 FSB using 8 processors. All simulations continued scaling out to 8 processors and the scaling ranged from 1.3x for an axi-symmetric noozle simulation with about 150,000 cells to 3.4x for a shallow water simulation of a reservoir.

Other simulations run on 8 processors: Fuel Sloshing, isothermal, GMRES pressure solver, 2 million cells: 3.1x High Pressure Die Casting, explicit heat transfer, GMRES pressure solver: 2.85x Lost Foam Casting, implicit heat transfer, 250,000 cells, 2.63x

John Thanks for inputs and feedback. But have you tried it with GMO + turbulent model? since GMO is program to run in serial so would like to understand if any benefit to run with 8 cores SMP. Thanks.

The GMO model is not parallelized at this time so you will not see a significant speedup when GMO is active. Turbulence will not affect the scaling however.

John Thanks for the inputs and btw can you send me your SMP case study report for reference?

Sure, send me an email at john@flow3d.com and I'll send it to you.