1) Message boards : Number crunching : Single Precision/ Double Precision (Message 37727)
Posted 5 days ago by Profile Retvari Zoltan*
Would it currently be better if I allot more double precision computing performance (lowering single precision) on my two EVGA (/NVIDIA) Titan Black Superclocked cards in the NVIDIA Control Panel?

No.
Hope that helps :)
2) Message boards : Number crunching : BitCoin Utopia went crazy credit-wise (Message 37716)
Posted 7 days ago by Profile Retvari Zoltan*
Cobblestones mean NOTHING.

This is true only in the sense of you can't exchange your BOINC credits (=cobblestones) to anything in the real world.
But within the BOINC world Cobblestones have meaning and also have purpose.
This is very easy to see. Just take a look at this "Number crunching" topic sorted by most views first.

topic views BitCoin Utopia went crazy credit-wise 28489 ATI vs NVIDIA GPUs 25508 Milkyway@home on ATI cards 23329 Specs of the GPUGRID 4x GPU lab machine 17388 Credit per € / $ 17082 BOINC 6.12.26 released 11324 CUDA Benchmark tool 10467

Change in the credits awarded for whatever reason trigger events in the real world. This is not a problem until the change in the credits awarded aligns with the aim of the credit system, that is to motivate crunchers to support science. But in my opinion Bitcoin Utopia f**ked up the whole credit system in exchange of $4210,4 (see the pictures I've attached at the bottom). As this project awards credit for BitCoin (not for crunching power - which is I think in "violation" of present BOINC "rules") and they awarded 543,960,595,953 credits so far for that amount of money, anyone can calculate an exchange rate between real world currency and BOINC credits (which is insane). With that exchange rate, anyone can make a "reverse" calculation of how much money their credits worth in the real world (very very little). So BitCoin Utopia broke the rule of "you can't exchange your BOINC credits (=cobblestones) to anything in the real world." aka
Cobblestones mean NOTHING.

However - after all - it is our fault, as most of the crunchers won't donate money directly to their favorite project.
It would be fair if the money donations would be kept apart from BOINC credits, as they were kept apart until BitCoin Utopia showed up, so BitCoin Utopia should not award any credits, but their miners should be showed as money donors at the project's homepages. Moreover as this project is a BOINC project, it would be fair if they would give money to all active BOINC projects, however to agree in the proportion of this money between the projects would be a much harder debate.








3) Message boards : Number crunching : Problem with 8.41? (Message 37715)
Posted 7 days ago by Profile Retvari Zoltan*
I have not found any program for changing the clock rate on the GTX 560, so how could I overclock it?

I use and recommend MSI Afterburner for that purpose.

Cleaning the heatsink on the GTX 560 reduced its temperature but did not help this problem. If the GTX 560 has failing memory, why don't I see a similar problem with GPU workunits from several other BOINC projects?

From all BOINC projects GPUGrid has the most advanced application for nVidia GPUs. It's using the latest CUDA API (6.0), so it can utilize the GPU to its full capability, while other projects can't (although the GPU usage could show more than 90% under other projects also).
4) Message boards : Number crunching : Problem with 8.41? (Message 37675)
Posted 11 days ago by Profile Retvari Zoltan*
Summary of my 8.41 runs:

The 50 or so workunits on my x64 Windows Vista computer with a GeForce GTX 560 all gave error -97 and Error while computing, regardless of whether they were long or short, with one exception that gave Completed and validated.

Your GTX 560 gets above 85°C very quickly, that is too hot for that card at 1660MHz (830MHz core). Probably the card's heatsink needs to be cleaned and its fan should be checked and its RPM should be increased, or / and the GPU clock should be reduced (then the GPU voltage should be reduced also). You should increase the airflow into the case, remove the side of this PC if you can do that.

The 10 or so on my x64 Windows 7 computer with a GeForce GT 440 all gave Completed and validated, except for one that is still In progress; all short.

This card is even in worse condition than your other card, as it gets above 95°C. It's gonna get broken very soon if you don't improve its cooling.
This is a miracle that it can finish tasks successfully at all.

Does this mean that I need to set the Windows 7 computer to No new tasks for GPUGRID until you have a newer version of this application ready?

I think you mean the Windows Vista computer. However the 8.41 application is fine, the root of the problem is that your cards get very hot.
5) Message boards : Server and website : Upload Problems (Message 37610)
Posted 12 days ago by Profile Retvari Zoltan*
I installed Windows 8.1 this morning. First job was to install BOINC and connect to GPUGrid. Got a long and it's processing. But...

I have two GPUs, both seen by Device Manager, but I cannot get another WU after many "update" commands.

Is this due to the current problem or must I do something to get a second?

This is a different problem.
Possibly you can resolve this by creating a line containing <use_all_gpus>1</use_all_gpus> under the <options> section of the cc_config.xml file on your host.
See this post.
6) Message boards : Server and website : Upload Problems (Message 37597)
Posted 13 days ago by Profile Retvari Zoltan*
Someone please make some space on the server.

2014. 08. 16. 22:21:01 GPUGRID Started upload of e2s356_e1s863f335-SANTI_marsalWTbound2-30-32-RND8784_0_9
2014. 08. 16. 22:21:01 GPUGRID Started upload of I4R44-SDOERR_BARNA5-12-100-RND6142_0_9
2014. 08. 16. 22:21:03 GPUGRID [error] Error reported by file upload server: Server is out of disk space
2014. 08. 16. 22:21:03 GPUGRID [error] Error reported by file upload server: Server is out of disk space
2014. 08. 16. 22:21:03 GPUGRID Temporarily failed upload of e2s356_e1s863f335-SANTI_marsalWTbound2-30-32-RND8784_0_9: transient upload error
2014. 08. 16. 22:21:03 GPUGRID Backing off 40 min 29 sec on upload of e2s356_e1s863f335-SANTI_marsalWTbound2-30-32-RND8784_0_9
2014. 08. 16. 22:21:03 GPUGRID Temporarily failed upload of I4R44-SDOERR_BARNA5-12-100-RND6142_0_9: transient upload error
2014. 08. 16. 22:21:03 GPUGRID Backing off 2 min 15 sec on upload of I4R44-SDOERR_BARNA5-12-100-RND6142_0_9
7) Message boards : Graphics cards (GPUs) : Similar with GTX780 2GB 384Bit GDDR3 (Message 37575)
Posted 17 days ago by Profile Retvari Zoltan*
Someone have try this?

http://www.ebay.ca/itm/Similar-GTX780-2GB-384Bit-GDDR3-PCI-Express-2-0x16-Video-Graphics-Card-Hot-/171379870764

This card is a fake. Its PCB looks like an old card's PCB, so probably its BIOS is hacked to show a recent model number.
Here is the post about the another fake card.
8) Message boards : GPUGRID CAFE : The milestone thread (Message 37555)
Posted 23 days ago by Profile Retvari Zoltan*
Congratulations to Stoneageman on passing over 6 billion credits for the first time in GPUGrid's history!
... and to me on passing 3.5 billion credits for the second time in GPUGrid's history :)
9) Message boards : Number crunching : Bonus not credited - SANTI_marsalWTbound2 (Message 37542)
Posted 25 days ago by Profile Retvari Zoltan*
... Not sure it's relevant but this work unit 9925247 was crunched also by another user a few days before, and returned very close to deadline when it had been already reassigned to my host

This is relevant, as it's a known bug in the bonus system:
When the first host doesn't return the result within 5 days the workunit gets reissued to the second host. If the first host returns the result before the second host, the server accepts it, but the bonus is cancelled, as the result wasn't returned within 24 (48) hours. When the second host returns the same result, it won't receive bonus, as it has already been cancelled by the first host. However, if the second host returns the result before the first, it will receive the bonus. There's no other resolution for this bug.

10) Message boards : Number crunching : Test application for CPU MD (Message 37466)
Posted 32 days ago by Profile Retvari Zoltan*
V8.45 is Windows only at the moment.
You don't have to do anything, the new version is automatically donwloaded, when it becomes available for your OS.
You can check it on the applications page.


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