Does anyone use multi gpu on one machine on linux?

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Metod, S56RKO:

--- Quote from: sunu on 08 Jul 2009, 05:28:38 am ---
--- Quote from: Metod, S56RKO on 08 Jul 2009, 05:11:21 am ---Any idea? I've got a dual-GPU GF9800 GX2 and I'm wondering if I can make it play nice ...

--- End quote ---
Have you tried it? What problems do you have?

--- End quote ---

I'm trying .. hard ;-) It actually seems to me that I'm plagued with the same problem as described in this post: http://lunatics.kwsn.net/linux/seti-mb-cuda-for-linux.150.html#msg19175 - also Ubuntu 9.04 etc. I seem to recall similar error messages, but I can't check right now ... SAH server seems to have some functionality temporarily disabled. Anyway, here's the link to host's results: http://setiathome.berkeley.edu/results.php?hostid=4994295.

I was wondering if there's some special magic when machine's got more than one GPU...

sunu:
I assume that you've setup everything correctly? Please check my posts carefully here and here. Do a ldd in your cuda app and post your xorg.conf and xorg.0.log.

Metod, S56RKO:

--- Quote from: sunu on 08 Jul 2009, 08:12:36 am ---I assume that you've setup everything correctly? Please check my posts carefully here and here. Do a ldd in your cuda app and post your xorg.conf and xorg.0.log.

--- End quote ---

Here's the state of the matter:

* I've compiled kernel 2.6.30.1, albeit using configuration from Ubuntu 9.04 stock kernel
* I've installed (and made sure that driver gets used) nvidia 185.18.14 driver and cuda toolkit
* I've installed latest BOINC client 6.6.36
I can't get seti CUDA to work. Example of errored WU is this: http://setiathome.berkeley.edu/result.php?resultid=1297997619

Quite the same stuff with a WU from GPUgrid.net ( http://www.gpugrid.net/result.php?resultid=947630 ).

Libraries:

--- Code: ---$ ldd projects/setiathome.berkeley.edu/setiathome-CUDA-6.08.x86_64-pc-linux-gnu
linux-vdso.so.1 => (0x00007fffe0193000)
libcufft.so.2 => /usr/local/cuda/lib/libcufft.so.2 (0x00007f4fd1bd7000)
libcudart.so.2 => /usr/local/cuda/lib/libcudart.so.2 (0x00007f4fd1997000)
libcuda.so.1 => /usr/lib/libcuda.so.1 (0x00007f4fd14ca000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f4fd11bd000)
libm.so.6 => /lib/libm.so.6 (0x00007f4fd0f38000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00007f4fd0d1c000)
libc.so.6 => /lib/libc.so.6 (0x00007f4fd09aa000)
libdl.so.2 => /lib/libdl.so.2 (0x00007f4fd07a6000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f4fd058e000)
librt.so.1 => /lib/librt.so.1 (0x00007f4fd0386000)
libz.so.1 => /lib/libz.so.1 (0x00007f4fd016e000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4fd1ef2000)

$ ls -l /usr/local/cuda/lib/
total 24536
lrwxrwxrwx 1 root root 17 2009-07-06 14:41 libcublasemu.so -> libcublasemu.so.2
lrwxrwxrwx 1 root root 19 2009-07-06 14:41 libcublasemu.so.2 -> libcublasemu.so.2.2
-rwxr-xr-x 1 root root 4745456 2009-07-06 14:41 libcublasemu.so.2.2
lrwxrwxrwx 1 root root 14 2009-07-06 14:41 libcublas.so -> libcublas.so.2
lrwxrwxrwx 1 root root 16 2009-07-06 14:41 libcublas.so.2 -> libcublas.so.2.2
-rwxr-xr-x 1 root root 18684568 2009-07-06 14:41 libcublas.so.2.2
lrwxrwxrwx 1 root root 14 2009-07-06 14:41 libcudart.so -> libcudart.so.2
lrwxrwxrwx 1 root root 16 2009-07-06 14:41 libcudart.so.2 -> libcudart.so.2.2
-rwxr-xr-x 1 root root 261304 2009-07-06 14:41 libcudart.so.2.2
lrwxrwxrwx 1 root root 16 2009-07-06 14:41 libcufftemu.so -> libcufftemu.so.2
lrwxrwxrwx 1 root root 18 2009-07-06 14:41 libcufftemu.so.2 -> libcufftemu.so.2.2
-rwxr-xr-x 1 root root 272896 2009-07-06 14:41 libcufftemu.so.2.2
lrwxrwxrwx 1 root root 13 2009-07-06 14:41 libcufft.so -> libcufft.so.2
lrwxrwxrwx 1 root root 15 2009-07-06 14:41 libcufft.so.2 -> libcufft.so.2.2
-rwxr-xr-x 1 root root 1153304 2009-07-06 14:41 libcufft.so.2.2

--- End code ---

Now, as GPUgrid app exhibits same error seems that it's some configuration of Ubuntu kernel that kicks in ... I'll re-compile kernel when I find some time (which will not happen in next couple of weeks).

'till then.

sunu:
Please follow my post here to the letter

Kunin:
I followed your post, but it's still only using one of my cards, I have two GTX 260 NOT in SLI.

I placed a copy of the cuda app in /bin, all the drivers are installed and using BOINC 6.6.20 (6.6.36 wouldn't work at all).

The one that is running says: "Running (0.04 CPUs, 2 CUDA)" for the Status.

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