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Archive for the ‘PhysX Drivers’ Category

Official Nvidia position on hybrid ATI+NV PhysX configurations

with 22 comments

Nvidia_logo

Back again on banned ATI+Nvidia PhysX configurations situation.  Initially, all the hype was based on e-mail from customer care support, while Nvidia official motives were undisclosed.  In order to bring some clarity, we’ve asked Nvidia for commentaries a while ago and finally recieved some answers:

PhysXInfo: Is it true that PhysX capabilities of NVIDIA GPUs and/or Ageia PPUs are disabled with newest drivers when a Non-NVIDIA (AMD) graphics card is present in the system?
Nvidia: It is true that running an NVIDIA GPU for PhysX with an AMD GPU for graphics is not a supported configuration. This mode was inadvertently turned on in a beta version of our Win7 drivers and on some older XP drivers. AMD does not support PhysX for their customers, and we don’t QA this configuration. With no QA, it is risky to run this configuration so we removed this capability in a recent driver release.

PhysXInfo: Can you please explain to us what factors have led to such decision?
Nvidia: Today NVIDIA’s GPU and PhysX drivers are interconnected to optimize performance. In the future we expect this interdependence to deepen. This alone makes it difficult to support a third party GPU.

In order to make sure our customers have a great experience, we QA every release of our PhysX or Graphics drivers by testing approximately 14 NVIDIA GPUs for graphics processing with 8 GPUs for PhysX processing on 6 common platforms with 6 OS’s using 6 combinations of CPU and memory. This is over 24000 possible configurations. While we don’t test every possible combination, it should be clear that the work and cost to NVIDIA is substantial. AMD does not support PhysX for their customers. Adding AMD GPUs would significantly increase the necessary work and cost for NVIDIA. We prefer to invest in inventing new technologies that give our customers great new experiences.

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Written by Zogrim

October 9th, 2009 at 10:44 am

ATI + PhysX ban: even Ageia PPUs are affected ?

with 14 comments

ppu_banned

Following Geeks3D report on that recent driver update disables PhysX hardware acceleration not only for Nvidia GPUs, but for Ageia PPUs as well (if non-Nvidia graphics card is present in the system) we’ve desided to perform small investigation.

Test methodology is simple enough: we’ll use certain sample from PhysX SDK 2.8.1 Build 13 to identify if Ageia PPU is working and initializing properly with different PhysX drivers on several systems with Nvidia and ATI GPUs.

Used PhysX System Software – 8.09.04 (last one with direct PPU support) and newest 9.09.0814 installed above 8.09.04 (PPU won’t be recognised on pure 9.09.0814 drivers)

GeForce System #1 – GTX275 + Ageia PPU

ppu_080904 ppu_09090814

PhysX driver 8.09.04                                                         PhysX driver 9.09.0814

GeForce System #2 – GTX295 + Ageia PPU (thanks to JeGX from Geeks3d)

physx-cloth--ageia-ppu-hw-mode-80904+9090814-geforce-gtx-295

PhysX driver 9.09.0814

As you can see, in both cases Ageia PPU was recognised properly by the system, and hardware acceleration is working too (test applications indicates that both scene and cloth simulations are running in hardware)

What will happen if we’ll try same scenario, but now with ATI GPU installed in the system ?

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Written by Zogrim

September 30th, 2009 at 4:20 pm

Posted in PhysX Drivers, PhysX Hardware

Tagged with , ,

PhysX System Software 9.09.0914

with one comment

nvidia-physx

New 64-bit ready version of PhysX System Software is released. It contains updated .dlls for SDK 2.8.1 and runtimes for new SDK 2.8.3.

Another feature – installation paths are changed now, so all vital libraries and files are stored in “..\Program Files\NVIDIA Corporation\PhysX” folder instead of “..\Program Files\AGEIA Technologies” – this also makes PhysX drivers more compatible with Windows 7 OS.

Yon can download newest PhysX 9.09.0914 driver from our server, or just wait until it appears at nvidia website.

Mirror Link: Rapidshare

Written by Zogrim

September 22nd, 2009 at 9:51 pm

Posted in PhysX Drivers

Tagged with

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