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drummers-lowrise
11) Message boards : Proth Prime Search : ATI WUs ending with error ? (Message 28924)
Posted 3610 days ago by Dirk Broer
OpenCL is supported onyl from HD4xxx.
Also, double precision here doesn't matter anything.


I know OpenCL is only fully supported from the HD4xxx series. I mention the double precision and MilkyWay@Home to prove that a HD3870 is a quite capable cruncher, and that a CAL+/Stream application could get my card to work for PrimeGrid as well. Even other Ati cards might benefit from a CAL+/Stream application.

If support of OpenCL is a prerequisite, a HD3870 should not get WUs.
12) Message boards : Proth Prime Search : ATI WUs ending with error ? (Message 28919)
Posted 3610 days ago by Dirk Broer
I have a ti HD3870 and use it mainly for MilkyWay@Home, as it supports double precision and can crunch a WU MilkyWAy faster than my GTX260.
For some reason PrimeGrid can not see the device and all my WUs for PrimeGrid end up in error. A 3870 has 320 Unified Shaders, but they do not show up in CPU-Z. Main problem with the 3870 seems to be that it does not support OpenCL.
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