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Message boards : Graphics cards (GPUs) : Application 6.48 for Windows

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Profile [AF>HFR>RR] Jim PROFIT
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Message 3079 - Posted: 17 Oct 2008 | 9:20:45 UTC

I was surprise to see this application this morning, and no thread on the forum!

But after an upload, i don't receive another WU with this application.
So maybe this was an error!

I saw that this appliation use almost 50% of one core also.

GDF, can you tell me why i had this application?

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Message 3080 - Posted: 17 Oct 2008 | 9:34:32 UTC - in response to Message 3079.

I also had a workunit get done with v6.48 yesterday.
However the other 5 that have downloaded since then are all v6.45.

CPU usage was a lot higher, Task manager showed 20% cpu usage (25% being 100% on 1 core), and also took longer to do the workunit.
Time per step was 54.227 ms compared to the normal of 50.955 ms
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Message 3087 - Posted: 17 Oct 2008 | 15:06:52 UTC
Last modified: 17 Oct 2008 | 15:30:26 UTC

I have two of them. One is waiting to be processed by a 8800GT, the other one is now being processed by a GTX280 and the CPU load is about 50% of one CPU core (25% total load) (Intel Core 2 Duo 8500 no OC.) I'll report results when it be completed.

EDIT: I have estimated processing speed of the 6.48 unit being procesed (GTX280 OC: clock 697, shaders 1500, mem stock) and it gives me: one WU in 5.7 Hours (about 30% faster).

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Message 3089 - Posted: 17 Oct 2008 | 15:58:50 UTC - in response to Message 3087.
Last modified: 17 Oct 2008 | 16:01:15 UTC

I had put some out to compute with the new application for testing.
Now, it is the default one. It's also less cpu friendly than the old one but it should faster. Blame Windows, on Linux it is still 2%.

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Message 3090 - Posted: 17 Oct 2008 | 16:55:02 UTC

GDF, thank you for your work :)


..testing 1st 6.48 app-WU - will report after this one...

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Message 3091 - Posted: 17 Oct 2008 | 22:14:25 UTC

Just perfect...


http://www.ps3grid.net/result.php?resultid=85504

..same performance as the Linux app ... :-)


CPU Load @ Windows XP w/ SP3 and Q9550 @ 1-2 %


Great!

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Message 3092 - Posted: 17 Oct 2008 | 22:42:00 UTC

With a GTX280 on a Phenom Quad 9950 BE at 2.6 GHz under Vista 64 bit the 6.48 is using 15% of the CPU power, thats ca. 60% of the power of one core.
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Message 3095 - Posted: 18 Oct 2008 | 5:24:01 UTC - in response to Message 3092.

With a GTX280 on a Phenom Quad 9950 BE at 2.6 GHz under Vista 64 bit the 6.48 is using 15% of the CPU power, thats ca. 60% of the power of one core.


Same here with an Intel Q9300, GTX 260 and Vista 64.
A few times to compare -

Windows 6.45 - 43-45ms/step
Linux 6.47 - ~32 ms/step
Windows 6.48 - 34.2 ms/step for the first WU

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Message 3096 - Posted: 18 Oct 2008 | 5:49:43 UTC - in response to Message 3095.

Hi ...

First 6.48 WU - ran in a little over 7 hours, with a step time of 30ms on my system - Vista32, Q6600 and GTX260. Lots of CPU usage though - about the same 60% use of a single CPU as seen by other posters.

P.

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Message 3097 - Posted: 18 Oct 2008 | 6:59:12 UTC

@GDF

how did you/your team managed the warps? My G92 has just a estimated time of 36700s overclocked 8800GT 256 MB @ 720/1800/800.
Is your new Application detecting the Cuda-Hardware and how does it makes the difference? Because the difference between GT200 and G92 is denotative, concerning the amount of registers and active warps per multicore (set of 8 streamprocessors).

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Message 3098 - Posted: 18 Oct 2008 | 7:14:09 UTC

Hi GDF.
The new 6.48 App is just awesome!

The first WU with 6.48 took ~6.6h on my GTX260 (time per step: 27.91)
With the 6.45 it took ~8.5h (time per step: 36.05)

The CPU load is ~30% on one Core - seems OK for me.


Great job!!!



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Message 3099 - Posted: 18 Oct 2008 | 8:15:21 UTC

There is no big difference between my GTX260 and GTX280.

GTX280 Vista64 Clock rate: 1404000 khz, Time per step: 28.564 ms, WU: 24279.624 s
GTX260 XPPro64 Clock rate: 1242000 khz, Time per step: 28.580 ms, WU: 24292.703 s

Both running under Boincmanager 6.3.14 the application 6.48.

The GTX280 has 240 shader and is running with 1404000 khz, the GTX260 has 192 shader is only running with 1242000 khz. The difference in time per WU should be bigger.
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Message 3102 - Posted: 18 Oct 2008 | 9:28:35 UTC - in response to Message 3099.
Last modified: 18 Oct 2008 | 9:28:48 UTC

Do you have the new GTX260 with 216 shaders?

gdf

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Message 3104 - Posted: 18 Oct 2008 | 9:59:05 UTC - in response to Message 3098.

Hi,

i have no luck with application 6.48. Last night i set up a Windows XP64 box with a 9800, newest (cuda)driver from NVIDIA, Boinc 6.3.14.

I always got this (means that all tasks are marked with a "computation error"):

18-Oct-2008 02:04:27 [PS3GRID] Computation for task ec11646-GPUTEST4-2-10-acemd_2 finished
18-Oct-2008 02:04:27 [PS3GRID] Output file ec11646-GPUTEST4-2-10-acemd_2_1 for task ec11646-GPUTEST4-2-10-acemd_2 absent
18-Oct-2008 02:04:27 [PS3GRID] Output file ec11646-GPUTEST4-2-10-acemd_2_2 for task ec11646-GPUTEST4-2-10-acemd_2 absent
18-Oct-2008 02:04:27 [PS3GRID] Output file ec11646-GPUTEST4-2-10-acemd_2_3 for task ec11646-GPUTEST4-2-10-acemd_2 absent
18-Oct-2008 02:04:27 [PS3GRID] Starting eN15112-GPUTEST3-8-10-acemd_0
18-Oct-2008 02:04:27 [PS3GRID] Starting task eN15112-GPUTEST3-8-10-acemd_0 using acemd version 648
18-Oct-2008 02:04:29 [PS3GRID] Started upload of ec11646-GPUTEST4-2-10-acemd_2_0
18-Oct-2008 02:04:33 [PS3GRID] Computation for task eN15112-GPUTEST3-8-10-acemd_0 finished
18-Oct-2008 02:04:33 [PS3GRID] Output file eN15112-GPUTEST3-8-10-acemd_0_1 for task eN15112-GPUTEST3-8-10-acemd_0 absent
18-Oct-2008 02:04:33 [PS3GRID] Output file eN15112-GPUTEST3-8-10-acemd_0_2 for task eN15112-GPUTEST3-8-10-acemd_0 absent
18-Oct-2008 02:04:33 [PS3GRID] Output file eN15112-GPUTEST3-8-10-acemd_0_3 for task eN15112-GPUTEST3-8-10-acemd_0 absent
18-Oct-2008 02:04:33 [PS3GRID] Starting Ku31408-GPUTEST4-3-10-acemd_0
18-Oct-2008 02:04:33 [PS3GRID] Starting task Ku31408-GPUTEST4-3-10-acemd_0 using acemd version 648
18-Oct-2008 02:04:34 [PS3GRID] Finished upload of ec11646-GPUTEST4-2-10-acemd_2_0
18-Oct-2008 02:04:35 [PS3GRID] Started upload of eN15112-GPUTEST3-8-10-acemd_0_0
18-Oct-2008 02:04:39 [PS3GRID] Finished upload of eN15112-GPUTEST3-8-10-acemd_0_0
18-Oct-2008 02:04:39 [PS3GRID] Computation for task Ku31408-GPUTEST4-3-10-acemd_0 finished
18-Oct-2008 02:04:39 [PS3GRID] Output file Ku31408-GPUTEST4-3-10-acemd_0_1 for task Ku31408-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 02:04:39 [PS3GRID] Output file Ku31408-GPUTEST4-3-10-acemd_0_2 for task Ku31408-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 02:04:39 [PS3GRID] Output file Ku31408-GPUTEST4-3-10-acemd_0_3 for task Ku31408-GPUTEST4-3-10-acemd_0 absent
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Message 3105 - Posted: 18 Oct 2008 | 9:59:36 UTC
Last modified: 18 Oct 2008 | 10:01:03 UTC

I received the same errors on the new 6.48 Application, I rebooted which usually stops any errors but it still got them so I set the Box to NNW for now ... ???

18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-LICENSE
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-COPYRIGHT
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_1
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_2
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_3
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-grama.ionized.pdb
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-grama.ionized.psf
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-parameters
18-Oct-2008 05:20:06 [PS3GRID] Started download of yHI3867-GPUTEST4-3-GPUTEST4
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-LICENSE
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-COPYRIGHT
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_1
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_2
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_3
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-grama.ionized.pdb
18-Oct-2008 05:20:06 [PS3GRID] Started download of ss30338-GPUTEST3-5-grama.ionized.psf
18-Oct-2008 05:20:07 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-LICENSE
18-Oct-2008 05:20:07 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-COPYRIGHT
18-Oct-2008 05:20:07 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_3
18-Oct-2008 05:20:07 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-GPUTEST4
18-Oct-2008 05:20:07 [PS3GRID] Finished download of ss30338-GPUTEST3-5-LICENSE
18-Oct-2008 05:20:07 [PS3GRID] Finished download of ss30338-GPUTEST3-5-COPYRIGHT
18-Oct-2008 05:20:07 [PS3GRID] Started download of ss30338-GPUTEST3-5-parameters
18-Oct-2008 05:20:07 [PS3GRID] Started download of ss30338-GPUTEST3-5-GPUTEST3
18-Oct-2008 05:20:08 [PS3GRID] Finished download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_3
18-Oct-2008 05:20:08 [PS3GRID] Finished download of ss30338-GPUTEST3-5-GPUTEST3
18-Oct-2008 05:20:09 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-parameters
18-Oct-2008 05:20:09 [PS3GRID] Finished download of ss30338-GPUTEST3-5-parameters
18-Oct-2008 05:20:12 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_1
18-Oct-2008 05:20:12 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-yHI3867-GPUTEST4-2-10-acemd_2
18-Oct-2008 05:20:12 [PS3GRID] Finished download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_1
18-Oct-2008 05:20:14 [PS3GRID] Finished download of ss30338-GPUTEST3-5-ss30338-GPUTEST3-4-10-acemd_2
18-Oct-2008 05:20:15 [PS3GRID] Finished download of ss30338-GPUTEST3-5-grama.ionized.pdb
18-Oct-2008 05:20:23 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-grama.ionized.pdb
18-Oct-2008 05:20:24 [PS3GRID] Finished download of yHI3867-GPUTEST4-3-grama.ionized.psf
18-Oct-2008 05:20:25 [PS3GRID] Starting yHI3867-GPUTEST4-3-10-acemd_0
18-Oct-2008 05:20:26 [PS3GRID] Starting task yHI3867-GPUTEST4-3-10-acemd_0 using acemd version 648
18-Oct-2008 05:20:27 [PS3GRID] Computation for task yHI3867-GPUTEST4-3-10-acemd_0 finished
18-Oct-2008 05:20:27 [PS3GRID] Output file yHI3867-GPUTEST4-3-10-acemd_0_0 for task yHI3867-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 05:20:27 [PS3GRID] Output file yHI3867-GPUTEST4-3-10-acemd_0_1 for task yHI3867-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 05:20:27 [PS3GRID] Output file yHI3867-GPUTEST4-3-10-acemd_0_2 for task yHI3867-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 05:20:27 [PS3GRID] Output file yHI3867-GPUTEST4-3-10-acemd_0_3 for task yHI3867-GPUTEST4-3-10-acemd_0 absent
18-Oct-2008 05:20:32 [PS3GRID] Finished download of ss30338-GPUTEST3-5-grama.ionized.psf
18-Oct-2008 05:20:33 [PS3GRID] Starting ss30338-GPUTEST3-5-10-acemd_0
18-Oct-2008 05:20:33 [PS3GRID] Starting task ss30338-GPUTEST3-5-10-acemd_0 using acemd version 648
18-Oct-2008 05:20:34 [PS3GRID] Computation for task ss30338-GPUTEST3-5-10-acemd_0 finished
18-Oct-2008 05:20:34 [PS3GRID] Output file ss30338-GPUTEST3-5-10-acemd_0_0 for task ss30338-GPUTEST3-5-10-acemd_0 absent
18-Oct-2008 05:20:34 [PS3GRID] Output file ss30338-GPUTEST3-5-10-acemd_0_1 for task ss30338-GPUTEST3-5-10-acemd_0 absent
18-Oct-2008 05:20:34 [PS3GRID] Output file ss30338-GPUTEST3-5-10-acemd_0_2 for task ss30338-GPUTEST3-5-10-acemd_0 absent
18-Oct-2008 05:20:34 [PS3GRID] Output file ss30338-GPUTEST3-5-10-acemd_0_3 for task ss30338-GPUTEST3-5-10-acemd_0 absent

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Message 3106 - Posted: 18 Oct 2008 | 10:09:36 UTC - in response to Message 3105.

I received the same errors on the new 6.48 Application


The output of Stoffelstasks shows the "incorrect function" error, whereas you get "<message> - exit code -1073741819 (0xc0000005)</message>]]>". Don't know what that means though.

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Message 3107 - Posted: 18 Oct 2008 | 10:26:53 UTC
Last modified: 18 Oct 2008 | 10:27:15 UTC

CPU Time down from about 3000 seconds to 40

GPU time up from 31.000 up to 35.000

NOT Acceptable.

GTX 260, Vista 64 Bit SP1, Boinc 6.3.14

see here for an example result
http://www.ps3grid.net/workunit.php?wuid=60790

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Message 3108 - Posted: 18 Oct 2008 | 10:47:41 UTC - in response to Message 3102.
Last modified: 18 Oct 2008 | 10:50:44 UTC

Do you have the new GTX260 with 216 shaders?

gdf


Yes, you're right. Just checked with GPU-Z, it's a GTX260² with 216 Shaders.
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Message 3109 - Posted: 18 Oct 2008 | 11:00:52 UTC
Last modified: 18 Oct 2008 | 11:03:56 UTC

Well, the new 6.48 WUs are fine for me:

GTX280 OC: clock: 697; shaders: 1500; mem: stock
Windows Vista Home Premium 32 bits
CPU: Intel Core 2 Duo 8500 3.16 (stock clock)

Before (6.45) (a fast one):
# Time per step: 28.998 ms
# Approximate elapsed time for entire WU: 24648.684 s

Now (6.48)
# Time per step: 23.334 ms
# Approximate elapsed time for entire WU: 19833.684 s

As you can see, the new one goes 24% faster and you have to take into account that I have posted one of my best speeds in 6.45. If I use a slower one:

Before (6.45) (a slow one):
# Time per step: 30.281 ms
# Approximate elapsed time for entire WU: 25738.960 s

Then, the new one goes 30% faster.

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Message 3110 - Posted: 18 Oct 2008 | 11:28:21 UTC - in response to Message 3107.

CPU Time down from about 3000 seconds to 40

GPU time up from 31.000 up to 35.000

NOT Acceptable.

GTX 260, Vista 64 Bit SP1, Boinc 6.3.14

see here for an example result
http://www.ps3grid.net/workunit.php?wuid=60790


The WU you're linking to was crunched with 6.45, not 6.48. You're currently getting times between 37 and 41 ms/step.. which will surely improve once you get 6.48-WUs.

Regarding CPU-usage: you had a unit with ~40s before. On my machine CPU time increases to ~1h if I use it interactively, otherwise I get times in the tens of seconds.

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Message 3111 - Posted: 18 Oct 2008 | 12:06:54 UTC - in response to Message 3106.
Last modified: 18 Oct 2008 | 12:07:47 UTC

I received the same errors on the new 6.48 Application


The output of Stoffelstasks shows the "incorrect function" error, whereas you get "<message> - exit code -1073741819 (0xc0000005)</message>]]>". Don't know what that means though.

MrS


It may have something to do with both Stoffel & my card being older ones, his being a 9800 & mine a 8800GT. I have 2 other Box's with GTX 260's both the 216 Shader variety type that are Processing the 6.48's just fine in under 7 hr's time ... :)

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Message 3112 - Posted: 18 Oct 2008 | 12:25:19 UTC - in response to Message 3111.

My point is that you both are getting different errors, not the same - despite of what the BOINC manager output says (it can only report the symptom, not the cause). So while you could be correct that the new client may have a problem with older hardware, I expect that this would be a special problem and not a general one. Otherwise we should be seeing many more user complaints.

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Message 3121 - Posted: 18 Oct 2008 | 16:38:37 UTC - in response to Message 3099.

There is no big difference between my GTX260 and GTX280.

GTX280 Vista64 Clock rate: 1404000 khz, Time per step: 28.564 ms, WU: 24279.624 s
GTX260 XPPro64 Clock rate: 1242000 khz, Time per step: 28.580 ms, WU: 24292.703 s

Both running under Boincmanager 6.3.14 the application 6.48.

The GTX280 has 240 shader and is running with 1404000 khz, the GTX260 has 192 shader is only running with 1242000 khz. The difference in time per WU should be bigger.



The GTX280 times should be ~10-15% faster -- it seems they are a little bit to slow. The speed of the 260 is ok (if it´s a stock GTX260² with 216 shaders)


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Message 3122 - Posted: 18 Oct 2008 | 17:29:03 UTC - in response to Message 3121.

The GTX280 times should be ~10-15% faster -- it seems they are a little bit to slow.


It was only a single WU anyway, wasn't it?

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Message 3123 - Posted: 18 Oct 2008 | 18:21:49 UTC - in response to Message 3122.


It was only a single WU anyway, wasn't it?

MrS


Yeas. Meanwhile I have 3 crunched on the GTX280, here the values:

Clock rate: 1296000 kilohertz # Time per step: 28.124 ms WU: 23905.296 s
Clock rate: 1404000 kilohertz # Time per step: 28.564 ms WU: 24279.624 s
Clock rate: 1296000 kilohertz # Time per step: 27.046 ms WU: 22989.391 s

The clockrate in the second WU is manual set to a higher value, also the memory and the shader. Looks like the WUs are very different in the length.

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Message 3125 - Posted: 18 Oct 2008 | 18:45:16 UTC - in response to Message 3123.
Last modified: 18 Oct 2008 | 18:46:23 UTC

a 280 normally clocked is around 24ms on linux. I don't know why your 280 is slower. Next applications will print also the number of shaders. All the wus have the same length, although this is going to change soon.

gdf

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Message 3131 - Posted: 18 Oct 2008 | 21:48:55 UTC

Unfortunately 6.45 is a rather significant step backwards for me:

App 6.45: 78.143ms, minutes usage of CPU, run with realtime priority
App 6.48: 87.283ms, ~40% of 1 core, run with standard low priority

As it is now 6.48 runs MORE SLOWLY on my Opteron 165/8800GT while USING MORE CPU time than 6.45. I'm running the next WU using realtime priority to see what difference that makes, which appears to be using up ~80% of 1 core.

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Message 3132 - Posted: 18 Oct 2008 | 21:59:20 UTC

I have two 8800GT's, with only one 6.48 result in so far. Given the lack of a large enough sample, I can't make any conclusions yet. However, it appears this WU completed about 13% faster than 6.45's using the same drivers. The CPU usage did increase from 1-2% to about 19% on that core (Q6600, so using about 75% of that core instead of only 5%).

I'll certainly take this increase in performance, if it holds up over the long run. Good job!

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Message 3133 - Posted: 18 Oct 2008 | 22:24:24 UTC - in response to Message 3111.

I received the same errors on the new 6.48 Application


The output of Stoffelstasks shows the "incorrect function" error, whereas you get "<message> - exit code -1073741819 (0xc0000005)</message>]]>". Don't know what that means though.

MrS


It may have something to do with both Stoffel & my card being older ones, his being a 9800 & mine a 8800GT. I have 2 other Box's with GTX 260's both the 216 Shader variety type that are Processing the 6.48's just fine in under 7 hr's time ... :)


I did a Reboot & Project Reset early this morning on the Box giving the Error's and running a 8800GT OC. I was finally able to get a couple of PS3 Wu's a few Minutes ago and 1 of the Wu's did start up & run 20 or so seconds before the other Project (Poem) took back over and started running it's Wu's in Priority Mode (roll's eyes) so I'll have to wait until the PS3 Wu decides to start back up again ...

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Message 3135 - Posted: 19 Oct 2008 | 0:35:43 UTC

A general remark for everyone: be careful with statements like "the new client is xx% faster/slower" based on a single result. On my machine I've seen times between 70 and 52 ms/step with application 6.45 (average ~62 ms), so I'd say the time can vary significantly.

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Message 3141 - Posted: 19 Oct 2008 | 8:54:02 UTC

My first 6.48-WU resulted in an error, and I'm pretty sure it was almost finished, but I don't know exactly, it was in the night time as it broke.
I'm a bit disappointed about the increased cpu-usage of this version, it's way too much again.
I will watch that a bit more now, I hope the next WU finishes normally.
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Message 3143 - Posted: 19 Oct 2008 | 9:57:40 UTC

My first 6.48 WU is being crunched right now, so far no problems (9800GTX+, 177.13, 6.3.10, XP SP2) and cpu usage is a fairly constant 16-17% of 25% (quad core). BUT I'm seeing an increase in GPU temperature by ~2°C, which hopefully means that the higher CPU usage buys me better GPU utilization, which would really be worth it.

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Message 3145 - Posted: 19 Oct 2008 | 10:08:54 UTC

I've now nine of the 6.48 WUs crunched on my GTX280 and GTX260 cards and so far found no problems. The performance is much better than with the 6.45 and the 6.43, only 6:20h instead over 8 hours calculation time. The CPU utilization is higher (~15% of the power of one Quad CPU, ~60% of the power of one core), but I don't use a ncpus=5 entry, so this is not important for me. The temperature of the GPU is a little bit higher, but not so high as with the 6.43.
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Message 3153 - Posted: 19 Oct 2008 | 13:09:55 UTC

Actual the first 6.48 WU is running on my 8800GT. There is the CPU utilization much higher then on my GTX260 or GTX280 cards. It's also on a Phenom Quad CPU (9850 BE). The workload is about 20% of the CPU, that's 80% of the core. It's a higher load as I thought.
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Message 3158 - Posted: 19 Oct 2008 | 16:18:51 UTC - in response to Message 3135.

A general remark for everyone: be careful with statements like "the new client is xx% faster/slower" based on a single result. On my machine I've seen times between 70 and 52 ms/step with application 6.45 (average ~62 ms), so I'd say the time can vary significantly.

MrS

The time varies because it is measured in ELAPSED time, from start to finish including pauses/slowdowns by other task/programs (GPU waits for CPU to poll it) and boinc itself, if it moves the task to waiting to run and the task is left in memory, the elapsed time keeps counting. May happen in other cases, that is the only one I know for sure as I observed it happen and recorded GPU time reflected 5 extra hours in the time and a poorer ms/step.

You cannot compare 6.45 shown GPU elapsed times to 6.43 and before which was CPU time, not necessarily reflecting the true GPU time used.

---

Now that being said, I've only compared two results on one Windows x86 host for 6.48 on 8800GT-640Mhz stock speed. I see a large increase in CPU time from about 1 hour to 12 hours, CPU usage from 2-4% to 38-40%. GPU elapsed time decreased some, about 2000s or 33min at most from most previous 6.45 tasks, so now they run 15.75hours elapsed GPU time. The 6.45 were mostly in the range of 68ms at the low end, the two 6.48's are 66.55 and 66.6ms. This is running the task at low priority as determined by boinc, not using ncpus+1. NVIDIA driver 178.13, and buggy client 6.3.14. I did just upgrade the driver to 178.24 after those two ran.

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Message 3161 - Posted: 20 Oct 2008 | 3:07:50 UTC

WELL DONE!

Boinc 6.3.14 running 5 tasks, with ps3 6.45 and the latest Nvidia .24 drivers used to average 40 - 45 ms time per step on a stock GTX 280.

http://www.ps3grid.net/result.php?resultid=85965
http://www.ps3grid.net/result.php?resultid=86350

Last 2 results gave a 29 ms and 27 ms crunch on the new 6.48 app.

Still running 5 tasks considering I've noticed that the timings are minimal if running 4 or 5 tasks.

Bottom line, after much tweaking with drivers & boinc releases, I blame the old near zero cpu app for the slow time per steps, the older app gave me lower steps, and this app is giving even lowest.

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Message 3179 - Posted: 20 Oct 2008 | 22:17:20 UTC
Last modified: 20 Oct 2008 | 22:23:28 UTC

Hardware:
- QX9770 4GHz
- 3x 280GTX 650MHz

Software:
- XP32
- 178.24
- 6.3.14
- 6.48

Over 30 WU done successfuly with 6.48.

Compare to old app:
- Ca. 10% faster
- Ca. 30% more CPU usage
- Until now absolutely stable - no any problems.

Really god job!


Btw, with my 3x280 I would like to ask for more than 10WU/daily quota. 12 is minimum for me :)
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Message 3190 - Posted: 21 Oct 2008 | 8:42:31 UTC

Hi!
After reading about relatively low completition times here, I just had to abort my first WU, as it stuck at 57.822% (IIRC) with 24+h runtime. I must admit, that I had several system crashes during computation of said WU, however unrelated to WU itself. My second WU is at 60+% with ~7h elapsed. All are 6.48, computer is Q9450 stock speed, 2G 1600MHz DDR3 @ 1600MHz, XFX 8800GT XXX (factory overclocked 670/1950).

Greetings,

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Message 3192 - Posted: 21 Oct 2008 | 11:35:33 UTC - in response to Message 3190.

An update to my previous comparison between 6.45 and 6.48. This is from my last post:

App 6.45: 78.143ms, minutes usage of CPU, run with realtime priority
App 6.48: 87.283ms, ~40% of 1 core, run with standard low priority

I've since been running with realtime priority again, and got 69.xxxms for 4 WU's run on 8800GT's in WinXP. The CPU usage has gone up to 80-100% of 1 core when run at realtime priority.

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Message 3199 - Posted: 21 Oct 2008 | 17:38:27 UTC

AiDec,

I took a look at your results and I see two things: most 6.45 WUs needed 33 - 37 ms/step, a few 32 or 31 and some over 40 ms. With 6.48 most WUs are between 24 and 27 ms/step. How did you arrive at 10%?

And your GPU clock is changing a lot in the recent WUs. Did you take this into account when looking at the results?

MrS
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Message 3211 - Posted: 21 Oct 2008 | 20:20:59 UTC - in response to Message 3199.

After a few rendered wus: 24500 sec instead of 31500, CPU Util about 15-16% (q6600 3.4 GHZ)

Impressing! Thanks for that increase (about 23-25%) for the gtx260

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Message 3213 - Posted: 22 Oct 2008 | 6:54:21 UTC - in response to Message 3199.

AiDec,

I took a look at your results and I see two things: most 6.45 WUs needed 33 - 37 ms/step, a few 32 or 31 and some over 40 ms. With 6.48 most WUs are between 24 and 27 ms/step. How did you arrive at 10%?

And your GPU clock is changing a lot in the recent WUs. Did you take this into account when looking at the results?

MrS




Yes.

Steps:
6.45 without OC (that`s why ca. 33-34 ms)
6.45 OC (28-30 ms)
6.48 OC (24-27 ms)

I think it`s little bit more clear now :).


And additional explanation (based on old 6.45):

If I`m crounching with 3x280 then steps approx(!): 1st-32ms, 2nd-34ms, 3rd-40ms. Also sometimes I`m using just 2xGPU or 1xGPU to crunch when I`m playing games and sometimes I`m setting SLi. Don`t try to look at all WU`s, just some of them are `clear crunched` and I think I know which of them I should use to check new app`s performance :).
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Message 3384 - Posted: 26 Oct 2008 | 18:18:24 UTC

9600gso stock, 6.3.10 client, q6600, 3 cpu tasks, one core reserved for GPU

6.45: 89ms/iter, 222.5 cpu sec
6.48: 86ms/iter, 61112 cpu sec

analysis: since I dedicated a core to the GPU, the minor GPU improvement only costs me a bit of heat. However, if I were using the last CPU core for something else, as one does in 6.3.17, 5% improvement in GPU performance for 300 times the CPU might not be worth it on low end cards.

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Message boards : Graphics cards (GPUs) : Application 6.48 for Windows

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