ATI and NV GPUs in same host

[Claggy]

Desktop was extended automatically.
Actually, I attached single monitor with 2 inputs (DVI & D-sub) to both GPUs. DVI to GSO9600 and D-sub with DVI2D-sub to HD4870.
When I switched monitor inputs I've seen either usual desktop with taskbar or just empty desktop (secondary) with background picture and mouse cursor only.
Display properties in OS showed 2 monitors attached. IMHO it means that desktop was extended, right?

Sounds like it was extended automatically, i had to do it manually, but it was some time ago,
to check that they are Extended, right click on desktop, select 'Screen Resolution',  two Monitors should be shown, and the Multiple Displays selection should say 'Extend these Displays',

If offline ATI apps crash, and Boinc 6.10.58 says something about ATI SIGGEV violation (you might need to enable <coproc_debug>1</coproc_debug>  logging to see that),
then do my workaround, the only difference on my desktop is i lost some Aero effects.

Claggy

[_heinz]

Heinz, I running both SDKs just OK on host w/o NV GPU at all.
What part of SDK fails in you case? Profiler ? Or you can't build app ?
[Actually, I have both SDKs on my netbook too where no NV, no ATI - just intel's integrated video-chip.
And I can build both apps on this netbook in VS2008 too.
]

Good to know that this is possible, thank you very much.
I will try it again with latest dev env.
heinz

[Raistmer]

Finally I have both GPUs enabled under Windows x64:

11/3/2010 3:40:09 PM      NVIDIA GPU 0: GeForce 9600 GSO (driver version unknown, CUDA version 3020, compute capability 1.1, 368MB, 326 GFLOPS peak)
11/3/2010 3:40:09 PM      ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.838, 512MB, 1200 GFLOPS peak)

I had to physically  switch GPUs in PCIe slots making NV secondary and ATI primary (monitor now atached to ATI, NV works w/o any monitor atached) to get them work correctly.

[Ghost0210]

Finally I have both GPUs enabled under Windows x64:

11/3/2010 3:40:09 PM      NVIDIA GPU 0: GeForce 9600 GSO (driver version unknown, CUDA version 3020, compute capability 1.1, 368MB, 326 GFLOPS peak)
11/3/2010 3:40:09 PM      ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.838, 512MB, 1200 GFLOPS peak)

I had to physically  switch GPUs in PCIe slots making NV secondary and ATI primary (monitor now atached to ATI, NV works w/o any monitor atached) to get them work correctly.

Thats the only way I could get Boinc to see both of my GPU's as well
Not sure why they have to be in that config, but glad you got them working

[Frizz]

I had to physically  switch GPUs in PCIe slots making NV secondary and ATI primary (monitor now atached to ATI, NV works w/o any monitor atached) to get them work correctly.

This is what did the trick for me too (back in the day when I still had an ATI   ) ... I always thought all PCIe slots are equal (besides x16, x8, ... x1 lanes, etc.) ... and there is no such thing as primary and secondary. So I was wondering why ATI HAD to be in the first slot ...

[Raistmer]

My slots definitely not equal.
Secondary has much less x.. value. Don't remember how much, but smaller definitely.
I think immature ATI drivers can't deal with their own hardware if it not in first slot... 

[Claggy]

Updated my drivers to 260.99 and Catalyst 10.11, still had to use the workaround to get Boinc to see/use the HD5770,

Claggy