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ATI and NV GPUs in same host

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Raistmer:
Host unreachable  :'(
It became very unstable... BSODs of non-standart look.
Usually it complains about some driver, but doesn't list not driver nor any addresses in memory to look for. So I even don't know about what driver it complains. Maybe Win7 would give some more info about problem, but only on next week  :-\

_heinz:
Hi,
V8-Xeon( D5400XS ) 4 full x16 slots
at first I had have
slot 3 Sapphire HD3870
I had have installed CAT10.5 and ATI Developer environment and could compile Open CL
all was working fine with this installation.
~~~~~~~~~~~~~~~~~~~~~~~
then I bought GTX470
I set it into
slot 0 GTX470
then I installed latest driver, Cuda and developer env.
I could not running both developer environments parallel.
Although both cards are detected by BOINC and worked, the dev environment for NVIDIA fails.
So I deinstalled all ATI stuff to bring the dev env for NVIDIA running.
I bought a second GTX470, removed the 3870 from slot 3 and set the GTX470 into slot 2
So I have now:
slot 0 GTX470
slot 2 GTX470
CUDA and NVIDIA dev environment works.
~~~~~~~~~~~~~~
I could not find a solution to run both developer environments.
my 2 cents
heinz

Raistmer:
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.
]

Claggy:

--- Quote from: Raistmer on 29 Oct 2010, 02:25:07 pm ---Today I had possibility to install Win7 x64 on host with dual PCIe slots.
Now it holds GSO9600 in first slot and HD4870 in another one.
But BOINC sees only first (NV) GPU.
What I already done:
1) attached monitor to both GPUs. I checked, both GPUs show desktop OK, Catalyst manager can be invoked (if ATI GPU connected to monitor too), that is, both GPUs work OK.
2) Installed latest drivers. 260.99 for NV and Cat 10.10 for ATi
3) added <use_all_gpus> option to cc_config. But this step is optional BOINC not only doesn;t use secondary GPU, it just doesn't see it (only GPU0 listed in message tab at startup).

BOINC 6.10.58 x64, running under user account (not service).

Any suggestions what it could be ? How to enable both GPUs for BOINC under Win7 x64, what I missed ?


--- End quote ---
When you had the Monitors connected, did you Extend the Desktop onto the second display?
(i just used the VGA connection, Monitor now just shows up as Default VGA Monitor, even when no monitor connected)

Claggy

Raistmer:
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?

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