The 5970 is only supported in single-GPU mode.
Will this be fixed on the HD 6990 so that both GPU's on the card are usable and supported in OpenCL.
People have been asking about this since the 5970 dual-GPU support was removed/broken nearly a year ago.
Is there any ETA for this yet?
on anadatech they use a luxrender to test GPU. and they measure same performace than 6970. but it can be just wrong configuration.
In SDK 2.4 (coming very soon) this will be fixed on both the 5xxx and 6xxx series cards.
Very good news
The dual cards are compelling because they double the compute power per PCIe slot(power supply issues aside).
The number of usable x16 PCIe slots are a limiting factor in most cases(2 in most 2U blades.)
Now SDK 2.4 is available, but in "system requirements" HD 5970 still says "single gpu mode". Is a mistake in the page or multigpu support will be again "in an upcomming release"?
By the way: HD 6990 is not listed in the device list. This means that is not supported?
I recall seeing in the programming guide that devices with multiple GPUs aren't supported (i.e., only one GPU works with OpenCL currently).
I have just tested 3x HD6990s on ubuntu 10.10 + ccc11.3 + SDK2.4 with Luxmark v1.0.
It "almost" works which means I can see that the prog assigns kernels to the 6 GPUs but at the very last stage before it can show the score, the window freezes to grey...
Well, I suppose multiple GPUs does work under Ubuntu after some fine tunning
Unfortunately we are not able to claim multigpu support for this release. We are trying hard to make it available as soon as possible.
Although you might be able to see some progress for your multigpu kernels, official support will only come in another future release.
Is a new SDK release going to contain a fix or is it now Catalyst where changes of this type occur?
hm only windows catalyst contain OpenCL. so will you update SDK for Linux or include OpenCL into Linux catalyst also?
just answer if there will be update for Linux is enough.