Same WU takes more time in Lunatics (ATI) than only CPU ?


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Message boards : Number crunching : Same WU takes more time in Lunatics (ATI) than only CPU ?

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rob smithProject donor
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Message 1286567 - Posted: 22 Sep 2012, 8:24:21 UTC

Currently this cruncher is only showing you have the lunatics application installed for the CPU, and nothing for the GPU.


How come??? I installed Multibeam for ATI dude.


You did it correctly, I read it wrongly

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Message 1286570 - Posted: 22 Sep 2012, 8:29:22 UTC - in response to Message 1286567.
Last modified: 22 Sep 2012, 8:32:08 UTC

But no one can explain WHY i am having that error? Its because of being a APU Processor?
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Message 1286579 - Posted: 22 Sep 2012, 8:53:55 UTC

There are a few reasons for a computer to give the "can't create output file" type errors - here are a few of them
Disk is full.
User allocation of disk space is consumed.
User does not have create/write permission for the data directory.
The "create file" operation fails due to computer glitch.
Anti-virus software gets in the way

There are more, but these are the most common.

One common problem is that the "user" running BOINC/S@H does not have the correct permissions. This will show up as EVERY task failing with this error message, it can be prevented at installation time by doing the installation "for all users", not jut the one that is doing the installation.
Another one that is quite similar in its appearance is the AV software getting in the way - exclude the BOINC/project directories from the AV checking, and make sure BOINC/S@H applications are allowed to write (some AV software allows stopping applications writing non-temporary files)
User allocation is a funny one, because it can be transient - a user deletes a load of files, they go to the waste bin, but for a short time they appear twice against that user's allocation. (I don't use allocations, to prevent this problem).
Hard disk full - self explanatory really!
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Message 1286590 - Posted: 22 Sep 2012, 9:47:07 UTC

I am given up on this pc :(
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Message 1286634 - Posted: 22 Sep 2012, 12:58:25 UTC

I have to say expecting a dual 1GHz CPU, with a "built in" ATI HD6290 GPU to be anything other than "prosaic" is being a bit of an optimist.
I'd guess (based on the performance of my 2.7GHz, 6 core AMD) that an astopulse would take about six hours on the CPU, and something similar on the GPU (running Lunatics, not stock).

One question - is this processor being used as an add-on to a bigger system, or is it in a standalone PC?
(Silly me - I've just looked at the AMD website - its a notebook processor, so it certainly won't set the fields ablaze with its performance, indeed the lack of information on the AMD site suggests it has had a "chequered history", unlike its logical predecessor, the C-50, it has vanished from the product schedules)
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Message 1286829 - Posted: 22 Sep 2012, 21:52:43 UTC

21-09-2012 01:50:58 | | ATI GPU 0: Loveland (CAL version 1.4.1417, 256MB, 223MB available, 88 GFLOPS peak)
21-09-2012 01:50:58 | | OpenCL: ATI GPU 0: Loveland (driver version CAL 1.4.1417 (VM), device version OpenCL 1.1 AMD-APP-SDK-v2.4 (650.9), 256MB, 223MB available)

Try to update to a newer ATI/AMD GPU driver !
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Message 1286865 - Posted: 23 Sep 2012, 0:02:26 UTC - in response to Message 1286829.

But this one http://setiathome.berkeley.edu/show_host_detail.php?hostid=6755411 has a low GPU and it works o why this one doesnt????
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Message 1286894 - Posted: 23 Sep 2012, 2:26:00 UTC

23-09-2012 03:23:09 | | OpenCL: ATI GPU 0: What this means?

Original line: 23-09-2012 03:23:09 | | OpenCL: ATI GPU 0: Loveland (driver version CAL 1.4.1741 (VM), device version OpenCL 1.1 AMD-APP-SDK-v2.4 (650.9), 256MB, 223MB available)

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Message 1286920 - Posted: 23 Sep 2012, 3:31:11 UTC - in response to Message 1286865.

But this one http://setiathome.berkeley.edu/show_host_detail.php?hostid=6755411 has a low GPU and it works o why this one doesnt????

Possibly because that one has 512MB GPU RAM available while your C-60 system only has 256MB assigned to be used by the GPU, and only 768MB of system RAM left for the OS and other things.

Raistmer's C-60 also only has 256MB assigned to the GPU and runs the OpenCL apps successfully, but it has considerably more system RAM than yours and is running a full version of Win7 rather than the starter edition. I don't know those differences are significant, but they could be.
Joe

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Message 1286933 - Posted: 23 Sep 2012, 4:22:30 UTC - in response to Message 1286920.
Last modified: 23 Sep 2012, 4:38:28 UTC

Ok but i cant even install lunatics because of this error. I will install only Boinc. Thanks everyone
Ps: and if i change memory settings?
Ps2: i just found that buffer cache was set to 1000 days WTF.
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Message 1287009 - Posted: 23 Sep 2012, 10:09:44 UTC

The period_interations_num only concerns to GPU?
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Message 1287011 - Posted: 23 Sep 2012, 10:49:56 UTC - in response to Message 1287009.

The period_interations_num only concerns to GPU?

It's only for the r390 ATI OpenCL MB app,

Claggy

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Message 1287193 - Posted: 23 Sep 2012, 18:59:30 UTC - in response to Message 1287009.

The period_interations_num only concerns to GPU?


Yes, only to OpenCL MultiBeam app.

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Message 1287210 - Posted: 23 Sep 2012, 20:19:36 UTC - in response to Message 1287193.

Thanks Claggy and Raistmer for your help. It s sad having a GPU that doesnt work :(. I will install lunatics and then use "no gpus" cmd to turn a usable gpu in to a UNSUABLE one!!!!!!!!!!!!!! Damn
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Message 1287252 - Posted: 23 Sep 2012, 23:33:10 UTC - in response to Message 1287210.

You could upgrade the RAM, 750Mb to run Windows 7 and anything else is not a lot, then you could probably adjust BIOS settings to give the GPU more memory,

Claggy

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Message boards : Number crunching : Same WU takes more time in Lunatics (ATI) than only CPU ?

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