Hey all.

I just got a message from the server in my boinc manager that "an ATI GPU supporting double precision math is required. Does that mean that my GPU doesn't support it or that it's asking if anybody has one ?

It means your GPU does not support double precision, sorry.
http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units

As Swift said, your HD4600 is not supportive of double precision maths which is needed here for the level accuracy on mapping.

This link leads to the thread listing the ATI/AMD and nVidia GPUs supporting double precision.

If you read the thread from the bottom a number of posters will make additions to the GPU list.

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Go away, I was asleep

Maybe you can help me. I am also getting the same message, "An ATI GPU supporting double precision math is required."

I have an ATI FirePro V5800; driver 8.850.7.2000. However, BOINC reports it as a RADEON HD 5700 series (Juniper)

I know this card supports double precision math. Any ideas?

Thank you.

Hi DJ,

Try to download the "AMD Catalystâ„¢ Accelerated Parallel Processing (APP) Technology Edition" driver... If you are using Vista/7 64bits, here's the link for the driver: AMD Catalystâ„¢ Accelerated Parallel Processing (APP) Technology Edition
If you're using other OS, here's the page to go to select annother driver version: http://support.amd.com/us/gpudownload/windows/previous/10/Pages/radeon.aspx?os=Windows%20Vista%20-%2064-Bit%20Edition&rev=10.11

Make sure to uninstall your old driver and restart the computer, then, after restarting install the downloaded driver, also, after installing the new driver it doesn't require you to restart, but do it anyway...
With the old driver removed and new driver installed correctly, you should have now support of APP & OpenCL installed correctly.

If that doesn't work, you may look into the cc_config.xml-file, it contained the line:
<no_gpus>1</no_gpus>
which means that no GPU should be used (even if one was present) and thus reported that no GPU was found. If so, change that line to:
<no_gpus>0</no_gpus>
and the GPU will be detected.

Here are the config options: (http://boinc.berkeley.edu/wiki/Client_configuration)

If you don't have a cc_config.xml - file you can create one using notepad or a similar txt-editor and just put that one line in. You have to be careful to put in all the correct spaces ... look at the example below


<cc_config>
<options>
<no_gpus>0</no_gpus>
</options>
</cc_config>

Shut down BOINC-manager and restart it after the cc_config.xml-file is edited/created or deleted.

I hope this helps!
Best Regards,

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FirePro V5800 is Juniper XT (RV840) with CAD software support. So it is similar to a Radeon HD 5770 with lower core and memory clock so as to remain under the 75 watt PCI Express bus limit. Therefore it does not support double precision. Some AMD documentation states in error that it does support double precision.

http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=1505&nowrap=true#43973
http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2457&nowrap=true#51152
http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2457&nowrap=true#51194