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Number crunching :
NVIDIA driver update 306.23
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Author | Message |
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Bill G Send message Joined: 1 Jun 01 Posts: 1282 Credit: 187,688,550 RAC: 182 |
I have been running driver 301.42 on my NVIDIA GeForce 8400GS probably since its release. When the update to driver 306.23 for this card was announced I upgraded. With this driver it will not run the 2 video cards (GPUs) that I have installed at the same time. I had been looking at the rather strange info I was getting regarding what was running on the card/s as I have, since running the optimizer and finding that I should be running 3 (0.33) which I recently changed to. I finally realized today that only one card was working. It is possible that the second card was working but only running one copy at one time. (I seem to remember seeing 4 running earlier). After a roll-back of the driver all is again working as it should. SETI@home classic workunits 4,019 SETI@home classic CPU time 34,348 hours |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
Boinc 7.0.28 to Boinc 7.0.36 have a Nvidia GPU memory reporting Bug, on some hosts it was the Total GPU Memory that was wrong, on some hosts it was the Available GPU Memory that was wrong, it probably was also more likely to show up in Cuda 5 drivers, if the Total GPU Memory is different between GPUs, then only the most capable is used, unless you do a cc_config.xml with <use_all_gpus> enabled, all the fixes are likely to be in Boinc 7.0.37 when its released. Changeset 26084 Changeset 26117 Claggy |
Bill G Send message Joined: 1 Jun 01 Posts: 1282 Credit: 187,688,550 RAC: 182 |
Both cards have identical memory (although it reports different speeds). I will wait for a upgraded BOINC before I try the new drivers again as all seems to be running just fine now. What really caught my attention was the fact that all my CUDA tasks seemed to be running High Priority. SETI@home classic workunits 4,019 SETI@home classic CPU time 34,348 hours |
Bill G Send message Joined: 1 Jun 01 Posts: 1282 Credit: 187,688,550 RAC: 182 |
Just noticed that my lowly GeForce 210's on another computer were down to only one showing. I rolled back the driver on that one and now I have 2 again..... SETI@home classic workunits 4,019 SETI@home classic CPU time 34,348 hours |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
Just noticed that my lowly GeForce 210's on another computer were down to only one showing. I rolled back the driver on that one and now I have 2 again..... And what did the Boinc startup messages report for those GPUs? Claggy |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14649 Credit: 200,643,578 RAC: 874 |
Just noticed that my lowly GeForce 210's on another computer were down to only one showing. I rolled back the driver on that one and now I have 2 again..... (It'll still be in stdoutdae.txt, no need to re-load the driver just to tell us that) |
Bojan Send message Joined: 28 Feb 04 Posts: 15 Credit: 12,006,153 RAC: 4 |
I have been running driver 301.42 on my NVIDIA GeForce 8400GS probably since its release. When the update to driver 306.23 for this card was announced I upgraded. With this driver it will not run the 2 video cards (GPUs) that I have installed at the same time. to fix your problem do that: 1. exit BOINC 2. go to ProgramData\Boinc directory 3. find cc_config file and edited it 4. find at the end line use_all_gpus>0</use_all_gpus> and change it to use_all_gpus>1</use_all_gpus> 5. save it cheers |
Bill G Send message Joined: 1 Jun 01 Posts: 1282 Credit: 187,688,550 RAC: 182 |
Just noticed that my lowly GeForce 210's on another computer were down to only one showing. I rolled back the driver on that one and now I have 2 again..... I do not know what it reported with the new driver. It now reports the correct number of cards. SETI@home classic workunits 4,019 SETI@home classic CPU time 34,348 hours |
mica Send message Joined: 14 Aug 10 Posts: 1 Credit: 392,207 RAC: 0 |
301.42 nvidia gpu0 ->- cuda23 gpu1 nvidia gpu1 ->- cuda23 gpu2 nvidia gpu2 ->- cuda23 gpu3 306.23 gpu0 gpu1 gpu2+ ==== ->- cuda23 gpu1 ????????????????? |
Mad Fritz Send message Joined: 20 Jul 01 Posts: 87 Credit: 11,334,904 RAC: 0 |
301.42 Tut mir leid, meine Glaskugel ist gerade kaputt... |
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