Michael Sprecher wrote:
> I bought myself two Radeon HD5770, together they are as fast as one HD5870
> but I saved ~60€ :)
> After some tweaks I finally got one graphiccard to crunching numbers with a
> speed around 320 chains/s.
> Must the second card used as extended monitor to get there calculating? Will
> try it this evening.
> As far as I know ATI Stream should automatically detect and use multiple
> GPUs.
> I will post my experience later this week on the mailinglist and maybe the
> wiki (if it's desired).
>
> Regards
> Michael
>
Nice. Please remember to verify the generated data, either through a
ticket, or if there is a need for it, I can make a CPU driven
verification tools.
Currently the ATI code does not support multiple devices, however it
should be easy to do so. The brook+ API has some straight forward calls
to do this:
Device* getDevices (const char* deviceType, unsigned int* count);
Device* useDevices (Device* devices, unsigned int count,
unsigned int* oldDeviceCount);
Your cards could either work together, or separately in 2 table
generations. I think working together is the best option.
I will have to write some more code to enable this feature, and it would
be nice if someone with multiple cards could work with me on this.
regards,
Frank
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