1) Message boards : News : New CPU Application for testing (Message 38519)
Posted 17 days ago by Profile robertmiles
I got one of the test applications for CPUMD.

http://www.gpugrid.net/result.php?resultid=13209824
http://www.gpugrid.net/workunit.php?wuid=10166393

Now at 0.442% progress (occasionally increasing by about 0.002%), 06:43:9 elapsed, 2930:20:57 estimated remaining.

Running high priority. Using 3 CPU cores, the maximum I allow BOINC to use on that computer.

If the estimated time to completion is anything close to accurate, I probably won't allow any more of these to run on that computer.

Running under 64-bit Windows Vista.
2) Message boards : Graphics cards (GPUs) : Maxwell now (Message 38058)
Posted 37 days ago by Profile robertmiles
Something I'm having trouble finding: How well do the new cards using PCIE3 work if the motherboard has only PCIE2 sockets?
3) Message boards : Graphics cards (GPUs) : Maxwell now (Message 38057)
Posted 37 days ago by Profile robertmiles
Time to replace my trusty GTX 460, which has been GPUGrid-ing for years! At ~£100 the GTX 750Ti fits my budget nicely but I need some guidance.

1. Is the power feed only from the mobo enough for 24/7 or should I go for one with a 6-pin connection?
2. One fan or two?
3. WHICH 750Ti do you recommend?

I installed a pair of 750Ti cards in my computer yesterday and tried to run GPUGRID. No go, instant fail within a couple seconds.

This quote is from January. I hope the problem has been fixed!


Something you didn't mention: If possible, get one that blows the hot air out of the case rather than blowing it around within the case. That should reduce the temperature for both the graphics board and the CPU, and therefore make both of them last longer.
4) Message boards : Number crunching : Problem with 8.41? (Message 37712)
Posted 70 days ago by Profile robertmiles
I don't see any particular problem running 8.41 (longs only) on my Win7 64-bit machine on two GTX 750 Ti's (CUDA 6.0). As previously stated in the earlier discussion, it is likely your GTX 560 is overclocked or just too hot, or maybe has failing memory, but that is less common.
http://www.gpugrid.net/results.php?hostid=173205


8.41 (shorts) worked properly on my 64-bit Windows 7 computer with a GT 440 until the fan on the GT 440 started failing. This appears to be a problem specific to Windows Vista.

I have not found any program for changing the clock rate on the GTX 560, so how could I overclock it? 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?
5) Message boards : Number crunching : Problem with 8.41? (Message 37702)
Posted 72 days ago by Profile robertmiles
Looks like I'll have to set GPUGRID on No new tasks for a while. 8.41 only wastes CPU and GPU time on my Windows Vista computer, and the graphics board is failing on my Windows 7 computer.
6) Message boards : Number crunching : Problem with 8.41? (Message 37676)
Posted 74 days ago by Profile robertmiles
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.


Heatsink cleaned. Fan Running. Software for adjusting the fan speed is automatic, with no user input. No software found for adjusting the GPU clock or the GPU voltage. Now running at about 72°C.

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.


The GT440 fan was running when I started this, but then failed during the attempted cleaning. GT440 heat sink unreachable for cleaning. GPU use by BOINC disabled on that computer is disabled until I can do more.

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.


Yes. Yes.
7) Message boards : Number crunching : Problem with 8.41? (Message 37673)
Posted 74 days ago by Profile robertmiles
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.

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.

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?

8) Message boards : Number crunching : Problem with 8.41? (Message 37672)
Posted 74 days ago by Profile robertmiles
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.

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.

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?

9) Message boards : Server and website : Boinc client (Message 37625)
Posted 75 days ago by Profile robertmiles
I've seen that the BOINC manager will not download any CPU workunits if it has found a usable GPU but does not have any GPU workunits. You might add another project offering GPU workunits, but with a resource share of 0, if you want the computer to keep running workunits even when it cannot get any from GPUGRID.

POEM@Home seems to be the one with aims most similar to those of GPUGRID.

10) Message boards : Server and website : Upload Problems (Message 37622)
Posted 75 days ago by Profile robertmiles
The entire staff on vacation?


I'd expect most of them to be away from the project on Sundays. There might not be any there who know how to free any disk space without creating problems that are even worse.

An additional hard disk for the server is fairly cheap, but would they need to buy something else (such as a hard drive cabinet) in order to allow the server to use it? They might mention the price they would have to pay in order to add a terabyte or so of hard drive space to the server, and then ask for donations to pay for this.

They should, however, tell the server to extend the deadlines of all workunits still in progress by approximately the length of the upload outages.

Downloading workunits MIGHT help free some disk space, so you should probably keep on downloading and running workunits as long as you have enough hard drive space on your computers to store the output files of the workunits - unless the problem on the server gets bad enough to prevent any more downloads.


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