NVIDIA has released the new WHQL version of the PhysX System Software. The PhysX System Software is included with all latest ForceWare graphics drivers but if you don’t have a GeForce graphics card, you have to install the PhysX System Software to use PhysX based applications such as PhyswX FluidMark. PhysX hardware acceleration is available for all GeForce 8-series, 9-series and 200-series GPUs with a minimum of 256MB dedicated graphics memory.
Download: PhysX System Software Version 8.09.04
In this article, Guru3D explains how to use Multi-GPU with NVIDIA PhysX under Windows XP and Vista. There are 3 ways to use GeForce GPU with PhysX:
- Standard – one GPU renders both graphics + PhysX (not ideal as you’ll need a lot of GPU horsepower).
- SLI mode – have two GPUs render both graphics + PhysX (SLI motherboard required)
- Multi-GPU mode – GPU1 renders graphics and GPU2 renders PhysX (SLI motherboard not required)
Now the trick to use Multi-GPU mode with Vista:
Now there’s a thing you will need to be aware of in the Multi GPU mode, it’s actually a Vista limitation but a second monitor must be attached to enable PhysX running on the second GeForce GPU. You must extend your Windows Vista desktop onto that monitor.
To bypass that issue, most monitors have a standard VGA and a DVI connector, right? Just use both. This limitation is related to the Windows Vista display driver model (WDDM). This limitation does not exist in Windows XP. In NVIDIA’s upcoming drivers, they will be offering a workaround to improve the experience for Windows Vista users.
With a single card or two cards in SLI mode you will not have this problem.
FudZilla has done some tests with PhysX FluidMark and has found that GeForce PhysX implementation is highly CPU dependant. I will try to look at this phenomenon (there is certainly something to improve with a better multithreading support). I hope the problem comes from FluidMark and not from GeForce PhysX….
Ecco fatto amici, NVIDIA has released the PhysX PowerPack. What is the PhysX PowerPack? Simply a new ForceWare driver version 177.83 followed by 8 PhysX demos.
The pack is available here: PhysX PowerPack @ NVIDIA – 2781Mb.
Here are two demos from this pack:
NVIDIA PhysX technology Fluid Demo
The primary purpose of the NVIDIA PhysX technology Fluid Demo is to illustrate Smooth Particle Hydrodynamics (SPH). The demo contains two different scenes, the Outdoor and the Logo Scene.
I must say the log scene part is rather impressive: the fluid simulation is really and if you switch the fluid rendering from textured quads (I think it’s that) to polygonal spheres, you can see fluid equations in action!
Finally, the new PhysX System Software is here and should work with most GeForce 8, 9 and GTX 200 series cards.