Hi all. I am just a newbie to Milkyway and BOINC in General. Reading through the posts I worked out why the Radeon 4850 did not work. I replaced that with a Nivida GTS 260 which did not work either, due to it only having a compute ability of 1.1.

I then tryed a GTX 295 which worked brilliantly. Read the two CUDA's on the card downloaded 24 WU's and we were off.

I then decided to add another five over two computers and now I am stuck. I just can't get it to read more than one card per computer.

Please what do I need to change to get two or three 295's working on the same board?

I am running BOINC client 6.6.36 for windows_86_64

Processor: 8 GenuineIntel Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz [Intel64Family 6 Model 30 Stepping 5]
Processor features: fpu tsc pae nx sse sse2 pni mmx
OS: Microsoft Windows Vista: Home Premium x64 Edition, Service Pack 1, 906.00.6001.00)
memory: 7.99 GB physical, 16.03 GB virtual
Disk: 97.66 GB Total, 78.97 GB free
Local time is UTC + 12 hours
CUDA device: GeForce GTX 295 9driver version 19038, compute ability 1.3, 896MB, est. 106GFLOPS)
CUDA device: GeForce GTX 295 9driver version 19038, compute ability 1.3, 896MB, est. 106GFLOPS)
Not using a proxy
No general preferences found - using BOINC defaults
Preferences limit memory usuage when active to 4090.55MB
Preferences limit memory when idle to 7362.99MB
Preferences limit disk usage to 100.00GB

Hi David
You might want to try an update of boinc to 6.10.3, I think it has better cuda support, which might get both cards working. Just a suggesstion. It can be had here http://boinc.berkeley.edu/dl/?C=M;O=D
Bruce

---

Thanks Bruce. I can now see two cards, but it appears to only runs one cuda from each card.

Here are start up details.

Starting BOINC client version 6.10.3 for windows_x86_64
log flags: task, file_xfer, sched_ops
Libraries: libcurl/7.19.4 OpenSSL/0.9.8k zlib/1.2.3
Data directory: E:\bonic data
Running under account David
Processor: 4 AuthenticAMD AMD Phenom(tm) II X4 965 Processor [AMD64 Family 16 Processor: 512.00 KB cache
Processor features: fpu tsc pae nx sse sse2 pni
OS: Microsoft Windows Vista: Home Premium x64 Edition, Service Pack 1, (06.00.6001.00)
Memory: 8.00 GB physical, 16.05 GB virtual
Disk: 400.39 GB total, 398.46 GB free
Local time is UTC +13 hours
NVIDIA GPU 0: GeForce GTX 295 (driver version 19038, CUDA version 2030, compute capability 1.3, 896MB, est. 106GFLOPS)
NVIDIA GPU 1: GeForce GTX 295 (driver version 19038, CUDA version 2030, compute capability 1.3, 896MB, est. 106GFLOPS)
No usable CAL devices found
Not using a proxy

And from the task list we get:

Running
Running
Running
Running ;All for the CPU cores which is good. But then
Running (0.19 CPU's + 1.00 NVIDEA GPU'S)
Running (0.19 CPU's + 1.00 NVIDEA GPU'S) ;Which is ok if we only had one card.
Ready to start
Ready to start
Ready to start ;etc. which is really bad. I suspect it is only seeing one cuda from each card on the MB. So I'm still stuck.
[/list]

Actually it is more likely that you are seeing the two GPUs on one card rather than one GPU on each of the cards.

For Vista the desktop probably needs to be extended to the second card for it to be "seen", or a monitor attached or dummy plug ... or all three ... :)

There are also issues with specific versions of the video drivers for the 64 bit versions of Vista on GPU Grid I know where they do not run reliably ...

Hi David
I'm sorry but that is the extent of my expertise, but there are a number of other crunchers here that are are far more knowledgable about computers than I am. Maybe someone else can help you out? Good luck!!!
Bruce ;-p

---

Hi Paul

Actually it is more likely that you are seeing the two GPUs on one card rather than one GPU on each of the cards.

On my old single core Athlon, in which I only installed one card, the start up file only shows one card, but the task list shows both cuda's on the card working.

That is why I came to the conclusion BOINC was now only seeing one cuda per card.

Interestingly enough, there is only a 15 second penalty on a 6:30 minute task on the 'old' computer, as opposed to the quad core.

If I was to start this project again I would probably go with a bunch of GTX 260's. Anyway I will install a third card and see if there is a difference. I needed a good excuse to try the 1200 watt power supply anyway!

Actually it is more likely that you are seeing the two GPUs on one card rather than one GPU on each of the cards.

On my old single core Athlon, in which I only installed one card, the start up file only shows one card, but the task list shows both cuda's on the card working.

In my system with two GTX295 cards I see 4 GPUs reported by BOINC... on the other systems I see the two GPUs (pair of GTX260s or the GTX280 and 9800GT set) ... so, BOINC should correctly report what it sees and what it is going to use.

In my system with two GTX295 cards I see 4 GPUs reported by BOINC... on the other systems I see the two GPUs (pair of GTX260s or the GTX280 and 9800GT set) ... so, BOINC should correctly report what it sees and what it is going to use.

This is most encouraging news, Paul.
What version of BOINC are you running?
Are your cards connected?
Any idea where I am going wrong?

Thanks for the help. At least I have hope now. I was starting to wonder if I had made a big expensive mistake.

In my system with two GTX295 cards I see 4 GPUs reported by BOINC... on the other systems I see the two GPUs (pair of GTX260s or the GTX280 and 9800GT set) ... so, BOINC should correctly report what it sees and what it is going to use.

This is most encouraging news, Paul.
What version of BOINC are you running?
Are your cards connected?
Any idea where I am going wrong?

Thanks for the help. At least I have hope now. I was starting to wonder if I had made a big expensive mistake.

I run XP Pro on my CUDA systems so I am not much help on one hand ...

On the other, on GPU Grid the most common issue with VISTA is that to "see" the cards you may have to trick the cards and Vista. There are also driver issues ... but first try to extend your desktop over all 4 GPUs in the video preferences ... Control Panel, Hardware and Sound, Personalization, Display settings I think is what you need. Other ways to get there are dummy VGA plus or attaching another monitor...

There are extensive discussion threads about this on GPU Grid ...

{edit - add}
I am running 6.6.28 (2), 6.6.33, 6.6.36 (Mac Pro), and 6.10.3 (Vista 32 Ultimate)

We now have 3 cuda's working but can't get the 4th cuda and we have done all the windows settings but can't get the 4th cuda any bright idea's?????????. and we have tried the cc_config.xml but with no luck.

here are the commands for the cc_config.xml
<cc_config>
<options>
<use_all_gpus>0</use_all_gpus>
</options>
</cc_config>

*note - are there any other codes that work. program exceptions etc.

We do have 4 monitors running with a desktop all over them, so we don't think it's a windows problem {on the other hand,we do have a huge problem getting the ASUS M4A79T Deluxe amd3 790 chipset mobo to recognize the third GTX 295, but will leave that for later}

Starting BOINC client version 6.10.3 for windows_x86_64
log flags: task, file_xfer, sched_ops
Libraries: libcurl/7.19.4 OpenSSL/0.9.8k zlib/1.2.3
Data directory: E:\bonic data
Running under account David
Processor: 4 AuthenticAMD AMD Phenom(tm) II X4 965 Processor [AMD64 Family 16 Model 4 Stepping 2]
Processor: 512.00 KB cache
Processor features: fpu tsc pae nx sse sse2 pni
OS: Microsoft Windows Vista: Home Premium x64 Edition, Service Pack 1, (06.00.6001.00)
Memory: 8.00 GB physical, 16.05 GB virtual
Disk: 400.39 GB total, 398.78 GB free
Local time is UTC +13 hours
NVIDIA GPU 0: GeForce GTX 295 (driver version 19038, CUDA version 2030, compute capability 1.3, 896MB, est. 106GFLOPS)
NVIDIA GPU 1: GeForce GTX 295 (driver version 19038, CUDA version 2030, compute capability 1.3, 896MB, est. 106GFLOPS)
NVIDIA GPU 2: GeForce GTX 295 (driver version 19038, CUDA version 2030, compute capability 1.3, 896MB, est. 106GFLOPS)

Use all GPUs has to be a 1 ...

<use_all_gpus>1</use_all_gpus>

You said implement DA's insane bug ...

If you have crashes you may need a different driver version. My recollection from the GPU Grid boards is that Vista 64 (and Win7 64) is more picky on the driver and the version that works can be different than what is used on Vista 32 ...

Check here

http://www.gpugrid.net/forum_thread.php?id=1091#10119

how triky is to run multiple 295s on the same computer.
I'd drop my 8 295 cards well sleeping inside a drawer finally!! :)

max

Hi. I'd take out the third card first to see if you now have enough power to run the remaining cards on the PCIe bus. Green lights on the card mean little, merely that some form of power is enough to drive some electronics, not that the card has enough power to actually operate. been there done that.

Also, check the bios version of your motherboard with Asus and verify that there are no issues solved regarding 4 GTXes in newer bios revisions.

Which power supplies do you have (make and model) and how are they (exact wiring, what goes where) connected to your graphics cards ? This is an essential part of the success.

Please do read the pointer to gpugrid. (and thanks for that max :) ).
regards, Hydro.

We do have 4 monitors running with a desktop all over them, so we don't think it's a windows problem {on the other hand,we do have a huge problem getting the ASUS M4A79T Deluxe amd3 790 chipset mobo to recognize the third GTX 295, but will leave that for later}

---

Team Bletchley Park.

I read in one of the forums that windows vista won't see over 5 GPU's. So if you have three 295 GTX's:
1) two GPU's
2) two GPU's
3) two GPU's
Vista would see one GPU on the third 295 GTX.

I don't remember which forum Nvidia or Boinc has a long thread about this. You might want to do a search in the forums.

I read in one of the forums that windows vista won't see over 5 GPU's. So if you have three 295 GTX's:
1) two GPU's
2) two GPU's
3) two GPU's
Vista would see one GPU on the third 295 GTX.

I don't remember which forum Nvidia or Boinc has a long thread about this. You might want to do a search in the forums.

Yes they have a problem with the drivers on Vista/Win7 (XP is fine)... They finally will be working on a fix...

This is probably the thread you are referring to :) : 4 x GTX-295: CUDA only sees 5 x GPU


Pat

I read in one of the forums that windows vista won't see over 5 GPU's. So if you have three 295 GTX's:
1) two GPU's
2) two GPU's
3) two GPU's
Vista would see one GPU on the third 295 GTX.

I don't remember which forum Nvidia or Boinc has a long thread about this. You might want to do a search in the forums.

Yes they have a problem with the drivers on Vista/Win7 (XP is fine)... They finally will be working on a fix...

This is probably the thread you are referring to :) : 4 x GTX-295: CUDA only sees 5 x GPU


Pat

That is the problem I had with three 295's,I could not get past five Cuda's at once. In the end I took one out of each machine and brought three 260 cards.

So now I will (one still under construction) have three i7 machines, each with two 295's and one 260, or five cuda's in each. Not as elegant as three 295's each, in two machines, but hey, it works. It also has the benefit of another 8 cores for CPDN and Cosmo.

Thanks to Cluster Physik, my 4850 x 2 card now does more work than the five cuda's in any single i7 box! Will probably have more issues when my 5870 x 2 card arrives (next month?), maybe, according to my supplier.

I wish MW would increase the WU download limit to 12 per core
Hell, Seti will happily give me 70 at a time,and they run up to 3 hours each.