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drummers-lowrise
11) Message boards : Number crunching : CW GPU Sieve crashes (Message 31322)
Posted 4633 days ago by Dirk Broer
My GTX260 has now returned 14 healthy ones and a fair number of duds
12) Message boards : Number crunching : CW GPU Sieve crashes (Message 31304)
Posted 4634 days ago by Dirk Broer
My tasks all error out:

<core_client_version>6.10.58</core_client_version>
<![CDATA[
<message>
Maximum elapsed time exceeded
</message>
<stderr_txt>
--pmin=106908200000000 from command line overrides pmin=1000000001 from `input'
Sieve started: 106908200000000 <= p < 106908260000000
Thread 0 starting
Detected GPU 0: GeForce GTX 260
Detected compute capability: 1.3
Detected 24 multiprocessors.
Unhandled Exception Detected...
- Unhandled Exception Record -
Reason: Breakpoint Encountered (0x80000003) at address 0x771F22A1
Engaging BOINC Windows Runtime Debugger...

13) Message boards : Proth Prime Search : ATI WUs ending with error ? (Message 28924)
Posted 4679 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.
14) Message boards : Proth Prime Search : ATI WUs ending with error ? (Message 28919)
Posted 4679 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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