Member
I have a question, depending on the answer I may have a nightmare I want you to help me out of. Can a HD 3000 series (Non-OpenCL and Single Precision) crunch Einstein or SETI? Willing to modify config files and/or install a custom app if required. I know I got my HD 3870s to crunch Milkyway long after it became "OpenCL only" by doing that.
Seeker of the exit clause
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I'm not confident about it, but I'd expect the answer to be no on both counts.
WUProp results show only collatz, Milkyway and Moo for the HD 3850 for example:
http://wuprop.boinc-af.org/results/c...Radeon+HD+3850
Dig into the WUProp results some more and you may find better answers.
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Member
Collatz is not something I am interested in, and Milkyway will not as it's only a single precision "card", here is to hoping Windoze will play nicer with me if I disable the on-board video. Also not sure how accurate WUProp is, as it seems to group all Windows releases together. I heard way back when 7 came out that it's overhead lowered credits per day by as much as 15%, only one of the many reasons I stuck with XPx64 until six months ago. Honestly, I miss it, it ran so much smoother than 7 without all the stupid tweaks like disabling graphics driver timeout and such. I made the switch because it became a pain getting OpenCL set up correctly, among a few other things seldom used by the general population. Using an OS that few ever used, and is older than recent collage grads, I held out as long as I could.
Last edited by SuicideCabbage; 01-13-2016 at 11:11 AM.
Senior Post Whore
As far as I can make it out, you want to crunch with the onboard GPU that comes with the chipset of an AM3 board, beit either Einstein or Seti.
The out-of-box Einstein apps all want OpenCL for Ati/AMD, so your best chance is digging in their forums to seen whether someone has an app you can still use with Ati Stream/Brook+.
Seti@Home with the HD3800 should be possible under Win7, IMHO. They are switching to a new version (v8) however, and this may be end of the line for the HD3000, seti-wise.
Note that Linux support for the HD3000 series is dwindling also. You can not run present kernels with it and are bound to old versions.
Windows support for the HD4000 series is crap too, a few weeks ago Windows 10 de-installed OpenCL 1.0 for my HD 4770...
Last edited by Dirk Broer; 01-13-2016 at 12:58 PM.
Member
I mean if the transistors are there, why let them rot right? I know it's a lousy ~50 GFLOPs, but it doesn't cost anything! The issue I have been running into, is when Windows finally acknowledges the GPUs exist, I lose OpenCL across the entire system, including CPU. I also cannot see either GPU under CCC, honestly for what I am going to lose, and it seems that may be less than I thought if I can't crunch a project I want to on it, I may as well disable the on-board and see if Windoze feels like honoring the HD 6970.
EDIT: Trust me, it wasn't my choice to get a board with integrated graphics, it was acquired free from a friend who upgraded, the HD 6970, which is the real reason I am trying to get this computer crunching, was purchased second hand.
Last edited by SuicideCabbage; 01-13-2016 at 01:00 PM.
Senior Post Whore
You'd need the AMD legacy driver for the HD 3800, and even better would be an old ati-driver.
But if the system also has a HD 6970.......bugger the HD 3000!
I have laid-off my HD 3850 and HD 3870 months ago...too much Watts for what's it worth.
They might get a 3rd or 4th life in a retro-gaming machine...
Last edited by Dirk Broer; 01-13-2016 at 04:12 PM.
Member
Sure enough, disabled the on-board, and everything went smooth as could be. My question now is I have it set as I do my 5830s, 2 Einstein, 2 Milkyway, and 1 SETI at a time. I will watch the numbers and play with it over the next few days, unless someone already knows the optimal number of units for the 6970.
Senior Post Whore
The main parameters for the capability of a GPU are the amount of shaders and the amount of RAM. The shaders do the work and they need RAM to do it.
A HD 6970 has more shaders than a HD 5830 (1536 vs 1120), and it generally comes with double the amount of GDDR5 RAM too (2 GB vs 1 GB).
That RAM also runs at a higher speed (5500 MHz vs 4000 MHz), so it has a greater Bandwidth too (176000 MB/sec vs 128000 MB/sec).
There is a downside to the HD 6970 however (as Terry already found out before you): it is rather power hungry.
You do not need to heat the room [the HD 6970 is in] while crunching...
Member
Two units for Einstein max out the CPU feeder core, four units for Milkyway, up from two on the 5830s seems to be most efficient, and still playing with SETI, however it looks like one at a time is the way to go. On to the next order of business, anyone care to assist me with installing 32-bit libraries under Fedora so I can crunch CEP2?
Senior Post Whore
From the BOINC wiki: su -c 'yum install compat-libstdc++-296.i686 compat-libstdc++-33.i386 compat-libstdc++-33.x86_64'Originally Posted by SuicideCabbage
About maxing out Einstein: You did try to change the settings on this page I hope, and not through an app_config.xml file?
Last edited by Dirk Broer; 01-15-2016 at 04:32 PM.
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