Posts by Beyond
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1) Message boards : Number crunching : More CPU use since last week (Message 53429)
Posted 26 Feb 2012 by Profile Beyond
With your computers hidden it's pretty hard to offer help.
2) Message boards : Number crunching : Updates not happening automatically (Message 53425)
Posted 25 Feb 2012 by Profile Beyond
For years we've been asking for more control over the number of WUs that can be downloaded by particular projects. Instead, 7.x gives us less control than ever. Why take control away from the users and projects? What's the real agenda driving these changes?
3) Message boards : Number crunching : Updates not happening automatically (Message 53421)
Posted 25 Feb 2012 by Profile Beyond
They made changes to updating/refills for 7.X.X, and has resulted in different behaviour than (generally) in 6.X.X.

Basicly, with 7.X.X perceptions need to shift a little. Refills are more strictly controlled by the software, and less scope for manual downloads accumulating large caches. MW has its own limiter of course - 40 per GPU - but that still is caught under the whole overarching refill mechanism in 7.X.X

It will tend to run down cache (not always, just beaware it can leave it somewhat late!) until the last minute, and then refill. So, at the least sit back and let it do it thing, dont apply expectations of 6.X.X behaviour, it will not happen. The other change behaviourily, is - by in large - it now tends to download one or two WU at a time, not a big wack of them at once (MWs are short so you get lots of those in one go). Again, dont try to fight it (you'll lose rofl), let it do its thing. For example a dry machine on startup left overnight is rewarded with a full cache when you get up :)

There are still problems with aspects of the work fetch, but take on board the two behavioural changes above, as they are the most misunderstood, and nothing is wrong as such, the software is working "as designed" - just that its designed differently in V7.X.X

I'm usually an early adopter of new BOINC versions but so far I've heard many negatives regarding BOINC 7.x. Are there any positives? 6.12.41 & 6.12.43 seem to run with no real issues.
4) Message boards : Number crunching : More CPU use since last week (Message 53420)
Posted 25 Feb 2012 by Profile Beyond
Hello,

I see now MW is using 0.98 CPU + 1 ATI, last week it was only 0.45 CPU.
Has something changed?

Hard to say for sure since your computers are hidden but this happened to me when the open_cl app arrived. The fix was to update the ATI drivers to 12.1.
5) Message boards : Number crunching : OpenCL video card assignment issue (Message 53381)
Posted 22 Feb 2012 by Profile Beyond
I run both a GTX470 and AMD6970 in the same machine. I use the nvidia for SETI(or others when not working) and the AMD for MW. However with the new opencl WU's they are getting assigned to the nvidia card and the 6970 sits idle. Is there a way to not download the opencl wu's or is there another way to solve this issue?

I delayed switching one of my machines over after reading about this but today took the plunge, upgraded the ATI drivers to 12.1 (Win7-64) and switched MW to use the automatic open_cl app. I'm using BOINC 6.12.43 and it works fine, running MW on the HD5870 and HD4770 cards while crunching PG on the GTX460. So far no hitches at all.

Now added an app-info.xml to run 2x WUs and that works fine too.
6) Message boards : Number crunching : OpenCL video card assignment issue (Message 53376)
Posted 22 Feb 2012 by Profile Beyond
I run both a GTX470 and AMD6970 in the same machine. I use the nvidia for SETI(or others when not working) and the AMD for MW. However with the new opencl WU's they are getting assigned to the nvidia card and the 6970 sits idle. Is there a way to not download the opencl wu's or is there another way to solve this issue?

I delayed switching one of my machines over after reading about this but today took the plunge, upgraded the ATI drivers to 12.1 (Win7-64) and switched MW to use the automatic open_cl app. I'm using BOINC 6.12.43 and it works fine, running MW on the HD5870 and HD4770 cards while crunching PG on the GTX460. So far no hitches at all.
7) Message boards : Number crunching : Validate Error (Message 52769)
Posted 1 Feb 2012 by Profile Beyond
In some cases the stderr from BOINC is truncated or missing completely. I think I mostly fixed the problem for future updates

I've been watching the invalid count and it seems to cycle. When the invalids on one machine goes up so do the others. They also seem to go down more or less in sync. Could it be a problem with the way some WUs are formed? Could you also post a fixed ATI .exe version so we can test it with an app_info.xml?
8) Message boards : Number crunching : 79XX Dont Run II (Message 52768)
Posted 1 Feb 2012 by Profile Beyond
There is a new Version of the ASUS GPU Tweak Utility out - ASUS GPU Tweak V2.0.3, it is very good, and well worth a download. The link below is for the utility on 7970 cards. It may work on other cards despite the title on the main screen, I have no idea.

They have also folded into it GPU-Z. The result is a neat collection of tools, combining some of the Afterburner and GPU-Z functionality. The tool set is not as extensive as Afterburner, but its close .... real nice. Not had a chance to test thoroughly yet, but so far so good.

It's supposed to work with all cards. Tried it on one machine. Even in advanced mode it detected only 1 GPU out of 2. Any change in settings caused a reboot. Exiting the program caused a reboot. When it ran the Dimes client wouldn't. Uninstalling worked at least. Not even close to ready for prime time. Stick to Afterburner. BTW Zy, could you also PM me with your AB hints you mentioned above? Thanks!
9) Message boards : Number crunching : Validate Error (Message 52748)
Posted 30 Jan 2012 by Profile Beyond
Thanks for that. I didn't know my system was hidden. How do I unhide it? I'm off-line a lot as I have to use a dongle at the moment due to no phone line.
Cheers. Paul

In your account page go to: "Preferences for this project - MilkyWay@Home preferences" and set:
"Should MilkyWay@Home show your computers on its web site?" to "yes"
10) Message boards : Number crunching : Validate Error (Message 52722)
Posted 29 Jan 2012 by Profile Beyond
Can anyone tell me why over half of my large Milkyway@home v0.88 uploads have validate errors? They are 21, 28 and 42 thousand runtimes each so its rather disappointing to see them fail like that. Thanks.

Might take a stab at it but your computers are hidden. Validate errors are a problem here though and seem to be climbing again :(
11) Message boards : Number crunching : 79XX Dont Run (Message 52714)
Posted 28 Jan 2012 by Profile Beyond
In the users pc's over there it now says: "CAL Tahiti (3072MB) driver: 1.4.1658" for his gpu!

<core_client_version>7.0.12</core_client_version>
<stderr_txt>
Collatz Conjecture v3.06 for OpenCL
Based on the AMD Brook kernels by Gipsel
Device 0
Device Vendor Advanced Micro Devices, Inc.
Name Tahiti
Driver version CAL 1.4.1658 (VM)
Version OpenCL 1.1 AMD-APP (851.6)
Start 2373716052793973516648
Checking 824,633,720,832 numbers
Threads 256
Numbers/Kernel 4,194,304
Kernels/Reduction 256
Numbers/Reduction 1,073,741,824
Reductions/WU 768
Highest Steps 1,829 for 2373716052868342915369
Total Steps 418,663,445,214,577
GPU time 1,082.99 seconds
CPU time 0.998406 seconds
Total time 1,083.49 seconds

Looks like it's (the 7970) about 30% faster than the 5850 and 20% faster than the 5870 at this point with the OpenCl app. Now if someone can get a CAL app going...
12) Message boards : Number crunching : 79XX Dont Run (Message 52702)
Posted 28 Jan 2012 by Profile Beyond
Sure is good to have someone (else) on the bleeding edge :)

I dont mind the bleeding bit ...... its hemorrhaging that gets tedious .... I leave the latter to extreme overclock lunatics, and those insane freaks who play with LN2.
I have never understood the attraction of the latter .... its so freakin dangerous its unreal, they are mental, its the only conclusion I can come up with :) Regards Zy

Not sure what OCing with LN2 proves, but humans like to push the limits: a game like so many others we play. Similar to top fuel dragsters I guess.
13) Message boards : Number crunching : 79XX Dont Run (Message 52697)
Posted 28 Jan 2012 by Profile Beyond
It blue screened after my last post

Sure is good to have someone (else) on the bleeding edge :)
14) Message boards : Number crunching : 79XX Dont Run (Message 52648)
Posted 26 Jan 2012 by Profile Beyond
Whether they will release for XP is anybodys guess

I'd guess yes but that's just a guess...
15) Message boards : Number crunching : 79XX Dont Run (Message 52571)
Posted 18 Jan 2012 by Profile Beyond
What I'm doing:
I've got the DVI input of my monitor hooked up to the Sandy Bridge GPU and running all normal stuff, videos, light games etc. The ATI is connected to the VGA port (don't have a display port cable..), so windows keeps it active, and is crunching. I'm only disturbing it for demanding games.. occasionally.

The problem:
If I want to play a game on the ATI all I'd have to do is stop BOINC GPU and start it, Virtu will push the output to the IGP. However, I also have to adjust the clocks: core down, memory up. And this is what's not working: in my standard config (IGP @ DVI as main display) I can't set the clocks on the ATI. ATI Tray Tools doesn't find the card (says no ATI present), the MSI Tool crashes, Trixx seems to work but doesn't actually change anything.

What I do now is switching the primary desktop, switching to the VGA input on my screen, changing the clocks, replacing the primary desktop and switching back to DVI. Rather cumbersome.. Any further ideas? Best regards, MrS

What I'd do: disable the SB IGP. Don't see what you're gaining by using it except more heat. Other than that..
16) Message boards : Number crunching : 79XX Dont Run (Message 52566)
Posted 18 Jan 2012 by Profile Beyond
Wow, nice answer Zy. Tells us more about the 7970 cards for sure.
17) Message boards : Application Code Discussion : Problems with AMD Catalyst 11.11 (Message 52552)
Posted 17 Jan 2012 by Profile Beyond
Other projects are utilizing my 6870 just fine just so ya know. Thanks for the option to be able to help in this project! :) Also let me know if I just need to wait for a new Milkyway update too.

See this thread, GPU Requirements:

http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2457
18) Message boards : Number crunching : 79XX Dont Run (Message 52535)
Posted 16 Jan 2012 by Profile Beyond
I'm also using ATI Tray Tool because it's about the only tool which lets me downclock as far as I want. And I'm usually driving my display from the Intel GPU integrated into the CPU (no screen lag), unfortunately ATI Tray Tools doesn't detect my AMD at all this way. Are there any other tool which can do both, downclock (~50%) and detect / set all GPUs? MrS

Not sure what you mean, doesn't detect the AMD GPU cards or an AMD IGP? I disable the IGPs as they're' too slow to be of use and run too hot anyway. I don't use any Intel CPUs at this point (except my 3.5 year old core2 duo notebook that's been running at 100% CPU since I bought it) but there's no lag at all on any of my AMD systems as long as I put --gpu-target-frequency 105 in the cmdline when running 2x MW. None of the other projects need any special parameters and no lag there either.
19) Message boards : Number crunching : Help finalizing video card selection (Message 52525)
Posted 15 Jan 2012 by Profile Beyond
They are 28nm cards and therefore far far more power efficient than previous series by an order of magnitude in comparison to what has been normal in cards so far.

That would be a factor of 10. A bit generous ;)
Might be that high if GCN is a huge improvement over VLIW for some app (probably GPUGrid), but not for something which runs well on VLIW (e.g. MW, Collatz, Moo).

I'm thinking generally around a 2x speed bump, which is a lot. Pretty much what we saw when going from the 55nm 48xx (4770 excluded) to the 40nm 58xx. The change from the 58xx to the 69xx (both 40nm) was minimal and mixed.
20) Message boards : Number crunching : 79XX Dont Run (Message 52524)
Posted 15 Jan 2012 by Profile Beyond
But in Afterburner you can't downclock the RAM by much.. as it would be efficient for MW. I even asked them some time ago to somehow let people adjust the lower clock limit, to make their tool more useful. They said, it wouldn't be in the spirit of Afterburner.. MrS

I'm currently running Ray Adams ATI Tray Tools to control the ATI GPU clocks and Afterburner to control NV and the fans. It works but would be nice to have only 1 tool.


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