Nvidia 350.xx with opencl 1.2

It seems that a lot of GPU problems revolve around specific versions of drivers. Though NVidia has their own support structure, you can often learn from information reported by others who fold.

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Nvidia 350.xx with opencl 1.2

Postby DemonfangArun » Sat Apr 04, 2015 10:17 pm

just came across this today and installed it, sofar nothing appears to have broken from it and gtx960 is chewing through 10475s at same speed as it was before.
the big reason for me posting this is to see if anyone over at pande wants to check if the opencl bug has been finally fixed, because regardless of ppd, it would be nice to have things running efficiently without workarounds.

link to article: http://www.anandtech.com/show/9139/nvid ... 12-support

download link (scroll down past all the broken css nonsense): https://nvidia.custhelp.com/app/answers ... ver-350.05
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Re: Nvidia 350.05 with opencl 1.2

Postby bruce » Sun Apr 05, 2015 12:38 am

The OpenMM/FAHCore developers are in close contact with developers at both NVidia and AMD and my guess is that their back-channel communications carry a lot more information about the FAH specific bug that have limited forward progress of FAHCore_1* than you or I (or anandtech, for that matter) have access to. In spite of the lack of announcements from Stanford, I have no doubt that the Developers continue to develop/test/optimize the critical issues that limit progress on the GPU front.

As far as your report is concerned, are you implying that 10475 was touched by the applicable bug so you detected that something changed? It's my impression Projects which DONOT use the critical feature(s) are the only ones distributed to FAH Donors so we have no way to test a potential fix, while Projects which DO use those features are tested and retested in the Pande Lab. The developers must be staying on top of the issue(s) and when they have something, they'll start distributing it.

As far as 350.05 is concerned, NVidia specifically mentions crashes in the Frostbite engine and says nothing about crashes in OpenMM so my hunch is that it's strictly a game-oriented fix, not a Stream Computing oriented fix.
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Re: Nvidia 350.05 with opencl 1.2

Postby DemonfangArun » Sun Apr 05, 2015 1:06 am

bruce wrote:As far as your report is concerned, are you implying that 10475 was touched by the applicable bug so you detected that something changed?


that was more a quick "i updated to this (from what i can tell alpha) driver version and nothing has broken in the process" (from the little amount of stuff i've done today). my reason for mentioning 10475 was also because it is a core 18 project, and i'm running it on hardware that is impacted by the bug. this is easily recognized by roughly 1/3 the ppd of a core 17 wu run on the same hardware, whereas on something like a gtx660 i have normally seen a modest 15-20% difference across core17 and 18 projects, as is to be expected.

that out of the way, i mainly posted to get attention of this out there, since it's going to a new opencl version the bug might have gotten fixed, hence the entire reason for posting (i don't play any games that were affected by it). however the potential for the opencl update to include a fix for the opencl bug that causes the performance drop for all (iirc) core18 wus on windows is definitely worth making a "hey, this driver might have fixed this issue with core18" post.

just my two cents.
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Re: Nvidia 350.05 with opencl 1.2

Postby Breach » Sun Apr 05, 2015 4:18 pm

Great news & many thanks for the info!
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Re: Nvidia 350.05 with opencl 1.2

Postby EXT64 » Mon Apr 06, 2015 11:46 am

Demonfang - if you are referring to the Maxwell OpenCL bug (that required a patch to core 18 so it wouldn't crash on Maxwells, but killed performance), that was fixed in a previous but recent driver and the FahCore was modified to include a check for recent drivers. If new enough drivers are found then it removes the workaround and runs at full speed. Is your 960 not getting comparable PPD to Core 17 projects on that 10475?
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Re: Nvidia 350.05 with opencl 1.2

Postby DemonfangArun » Mon Apr 06, 2015 3:45 pm

EXT64 wrote:Demonfang - if you are referring to the Maxwell OpenCL bug (that required a patch to core 18 so it wouldn't crash on Maxwells, but killed performance), that was fixed in a previous but recent driver and the FahCore was modified to include a check for recent drivers. If new enough drivers are found then it removes the workaround and runs at full speed. Is your 960 not getting comparable PPD to Core 17 projects on that 10475?


that is the very bug i was referring to, of which i question the fixing of it
i'll put it this way: my gtx660 (which i stuffed back in for folding alone) is getting more ppd, by a good amount, compared to my 960 running the same core 18 project. with core 17 i normally see ~150-170k ppd if i let it run nonstop, right now on 10477 i'm seeing ~43k ppd
if someone could chime in with proper ppd for a 960 running 10477 with 1392 or thereabouts boost clock (this is just what my asus card came at).

logfile:
Code: Select all
   Line 1092: 08:13:03:WU00:FS01:Connecting to 140.163.4.234:8080
   Line 1093: 08:13:03:WU02:FS01:Download complete
   Line 1094: 08:13:04:WU02:FS01:Received Unit: id:02 state:DOWNLOAD error:NO_ERROR project:10477 run:0 clone:20 gen:38 core:0x18 unit:0x0000003f538b3dba548b1c0b151c46a2
   Line 1095: 08:13:04:WU02:FS01:Starting
   Line 1096: 08:13:04:WU02:FS01:Running FahCore: "C:\Program Files (x86)\FAHClient/FAHCoreWrapper.exe" "C:/Users/Demonfang Arun/AppData/Roaming/FAHClient/cores/web.stanford.edu/~pande/Win32/AMD64/NVIDIA/Fermi/beta/Core_18.fah/FahCore_18.exe" -dir 02 -suffix 01 -version 704 -lifeline 2808 -checkpoint 27 -gpu 0 -gpu-vendor nvidia
   Line 1097: 08:13:04:WU02:FS01:Started FahCore on PID 6356
   Line 1098: 08:13:04:WU02:FS01:Core PID:7792
   Line 1099: 08:13:04:WU02:FS01:FahCore 0x18 started
   Line 1100: 08:13:05:WU02:FS01:0x18:*********************** Log Started 2015-03-30T08:13:05Z ***********************
   Line 1101: 08:13:05:WU02:FS01:0x18:Project: 10477 (Run 0, Clone 20, Gen 38)
   Line 1102: 08:13:05:WU02:FS01:0x18:Unit: 0x0000003f538b3dba548b1c0b151c46a2
   Line 1103: 08:13:05:WU02:FS01:0x18:CPU: 0x00000000000000000000000000000000
   Line 1104: 08:13:05:WU02:FS01:0x18:Machine: 1
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   Line 1108: 08:13:06:WU02:FS01:0x18:Reading tar file core.xml
   Line 1109: 08:13:06:WU02:FS01:0x18:Digital signatures verified
   Line 1110: 08:13:06:WU02:FS01:0x18:Folding@home GPU core18
   Line 1111: 08:13:06:WU02:FS01:0x18:Version 0.0.3
   Line 1112: 08:13:09:WU00:FS01:Upload 4.99%
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   Line 1117: 08:13:29:WU02:FS01:0x18:Completed 0 out of 5000000 steps (0%)
   Line 1118: 08:13:29:WU02:FS01:0x18:Temperature control disabled. Requirements: single Nvidia GPU, tmax must be < 110 and twait >= 900
   Line 1119: 08:13:33:WU00:FS01:Upload 25.68%
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   Line 1137: 08:15:08:WU00:FS01:Server responded WORK_ACK (400)
   Line 1138: 08:15:08:WU00:FS01:Final credit estimate, 31349.00 points
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   Line 2793: 21:21:47:WU02:FS01:0x18:Completed 3200000 out of 5000000 steps (64%)
   Line 2806: 21:30:14:FS01:Shutting core down
   Line 2807: 21:30:14:WU02:FS01:0x18:WARNING:Console control signal 1 on PID 7792
   Line 2808: 21:30:14:WU02:FS01:0x18:Exiting, please wait. . .
   Line 2809: 21:30:15:WU02:FS01:0x18:Lost lifeline PID 6356, exiting
   Line 2810: 21:30:15:WU02:FS01:0x18:ERROR:103: Lost client lifeline
   Line 2811: 21:30:15:WU02:FS01:0x18:Folding@home Core Shutdown: CLIENT_DIED
   Line 2812: 21:30:15:WU02:FS01:FahCore returned: INTERRUPTED (102 = 0x66)
   Line 2843: 21:36:40:WU02:FS01:Starting
   Line 2844: 21:36:40:WU02:FS01:Running FahCore: "C:\Program Files (x86)\FAHClient/FAHCoreWrapper.exe" "C:/Users/Demonfang Arun/AppData/Roaming/FAHClient/cores/web.stanford.edu/~pande/Win32/AMD64/NVIDIA/Fermi/beta/Core_18.fah/FahCore_18.exe" -dir 02 -suffix 01 -version 704 -lifeline 2808 -checkpoint 27 -gpu 0 -gpu-vendor nvidia
   Line 2845: 21:36:40:WU02:FS01:Started FahCore on PID 12844
   Line 2846: 21:36:40:WU02:FS01:Core PID:12624
   Line 2847: 21:36:40:WU02:FS01:FahCore 0x18 started
   Line 2869: 21:36:41:WU02:FS01:0x18:*********************** Log Started 2015-03-30T21:36:40Z ***********************
   Line 2870: 21:36:41:WU02:FS01:0x18:Project: 10477 (Run 0, Clone 20, Gen 38)
   Line 2871: 21:36:41:WU02:FS01:0x18:Unit: 0x0000003f538b3dba548b1c0b151c46a2
   Line 2872: 21:36:41:WU02:FS01:0x18:CPU: 0x00000000000000000000000000000000
   Line 2873: 21:36:41:WU02:FS01:0x18:Machine: 1
   Line 2874: 21:36:41:WU02:FS01:0x18:Digital signatures verified
   Line 2875: 21:36:41:WU02:FS01:0x18:Folding@home GPU core18
   Line 2876: 21:36:41:WU02:FS01:0x18:Version 0.0.3
   Line 2877: 21:36:41:WU02:FS01:0x18:  Found a checkpoint file
   Line 2886: 21:37:03:WU02:FS01:0x18:Completed 3125000 out of 5000000 steps (62%)
   Line 2887: 21:37:03:WU02:FS01:0x18:Temperature control disabled. Requirements: single Nvidia GPU, tmax must be < 110 and twait >= 900
   Line 2923: 21:43:22:WU02:FS01:0x18:Completed 3150000 out of 5000000 steps (63%)
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   Line 3917: 05:21:03:WU00:FS01:Connecting to 171.67.108.200:80
   Line 3918: 05:21:03:WU00:FS01:Assigned to work server 140.163.4.234
   Line 3919: 05:21:03:WU00:FS01:Requesting new work unit for slot 01: RUNNING gpu:0:GM206 [GeForce GTX 960] from 140.163.4.234
   Line 3920: 05:21:03:WU00:FS01:Connecting to 140.163.4.234:8080
   Line 3921: 05:21:04:WU00:FS01:Downloading 2.31MiB
   Line 3922: 05:21:10:WU00:FS01:Download 86.73%
   Line 3923: 05:21:11:WU00:FS01:Download complete
   Line 3924: 05:21:11:WU00:FS01:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR project:10476 run:0 clone:68 gen:104 core:0x18 unit:0x00000095538b3dba53f381372e2ce579
   Line 3925: 05:21:12:WU02:FS01:0x18:Saving result file logfile_01.txt
   Line 3926: 05:21:12:WU02:FS01:0x18:Saving result file checkpointState.xml
   Line 3927: 05:21:14:WU02:FS01:0x18:Saving result file checkpt.crc
   Line 3928: 05:21:14:WU02:FS01:0x18:Saving result file log.txt
   Line 3929: 05:21:14:WU02:FS01:0x18:Saving result file positions.xtc
   Line 3930: 05:21:15:WU02:FS01:0x18:Folding@home Core Shutdown: FINISHED_UNIT
   Line 3931: 05:21:16:WU02:FS01:FahCore returned: FINISHED_UNIT (100 = 0x64)
   Line 3932: 05:21:16:WU02:FS01:Sending unit results: id:02 state:SEND error:NO_ERROR project:10477 run:0 clone:20 gen:38 core:0x18 unit:0x0000003f538b3dba548b1c0b151c46a2
   Line 3933: 05:21:16:WU02:FS01:Uploading 9.76MiB to 140.163.4.234
   Line 3934: 05:21:16:WU02:FS01:Connecting to 140.163.4.234:8080
   Line 3935: 05:21:16:WU00:FS01:Starting
   Line 3936: 05:21:16:WU00:FS01:Running FahCore: "C:\Program Files (x86)\FAHClient/FAHCoreWrapper.exe" "C:/Users/Demonfang Arun/AppData/Roaming/FAHClient/cores/web.stanford.edu/~pande/Win32/AMD64/NVIDIA/Fermi/beta/Core_18.fah/FahCore_18.exe" -dir 00 -suffix 01 -version 704 -lifeline 2808 -checkpoint 27 -gpu 0 -gpu-vendor nvidia
   Line 3937: 05:21:16:WU00:FS01:Started FahCore on PID 11224
   Line 3938: 05:21:16:WU00:FS01:Core PID:13924
   Line 3939: 05:21:16:WU00:FS01:FahCore 0x18 started
   Line 3940: 05:21:17:WU00:FS01:0x18:*********************** Log Started 2015-03-31T05:21:17Z ***********************
   Line 3941: 05:21:17:WU00:FS01:0x18:Project: 10476 (Run 0, Clone 68, Gen 104)
   Line 3942: 05:21:17:WU00:FS01:0x18:Unit: 0x00000095538b3dba53f381372e2ce579
   Line 3943: 05:21:17:WU00:FS01:0x18:CPU: 0x00000000000000000000000000000000
   Line 3944: 05:21:17:WU00:FS01:0x18:Machine: 1
   Line 3945: 05:21:17:WU00:FS01:0x18:Reading tar file state.xml
   Line 3946: 05:21:17:WU00:FS01:0x18:Reading tar file system.xml
   Line 3947: 05:21:17:WU00:FS01:0x18:Reading tar file integrator.xml
   Line 3948: 05:21:17:WU00:FS01:0x18:Reading tar file core.xml
   Line 3949: 05:21:17:WU00:FS01:0x18:Digital signatures verified
   Line 3950: 05:21:17:WU00:FS01:0x18:Folding@home GPU core18
   Line 3951: 05:21:17:WU00:FS01:0x18:Version 0.0.3
   Line 3952: 05:21:22:WU02:FS01:Upload 4.48%
   Line 3953: 05:21:28:WU02:FS01:Upload 8.96%
   Line 3954: 05:21:32:WU00:FS01:0x18:Completed 0 out of 5000000 steps (0%)
   Line 3955: 05:21:32:WU00:FS01:0x18:Temperature control disabled. Requirements: single Nvidia GPU, tmax must be < 110 and twait >= 900
   Line 3956: 05:21:34:WU02:FS01:Upload 13.45%
   Line 3957: 05:21:40:WU02:FS01:Upload 17.93%
   Line 3959: 05:21:46:WU02:FS01:Upload 22.41%
   Line 3960: 05:21:52:WU02:FS01:Upload 26.89%
   Line 3961: 05:21:58:WU02:FS01:Upload 31.38%
   Line 3962: 05:22:04:WU02:FS01:Upload 35.86%
   Line 3963: 05:22:10:WU02:FS01:Upload 40.34%
   Line 3964: 05:22:16:WU02:FS01:Upload 44.82%
   Line 3965: 05:22:22:WU02:FS01:Upload 49.31%
   Line 3967: 05:22:28:WU02:FS01:Upload 53.79%
   Line 3968: 05:22:34:WU02:FS01:Upload 57.63%
   Line 3969: 05:22:40:WU02:FS01:Upload 62.11%
   Line 3970: 05:22:46:WU02:FS01:Upload 66.60%
   Line 3971: 05:22:52:WU02:FS01:Upload 71.08%
   Line 3972: 05:22:58:WU02:FS01:Upload 75.56%
   Line 3973: 05:23:04:WU02:FS01:Upload 80.04%
   Line 3974: 05:23:10:WU02:FS01:Upload 83.89%
   Line 3976: 05:23:16:WU02:FS01:Upload 88.37%
   Line 3977: 05:23:22:WU02:FS01:Upload 92.85%
   Line 3978: 05:23:28:WU02:FS01:Upload 97.33%
   Line 3979: 05:23:39:WU02:FS01:Upload complete
   Line 3980: 05:23:39:WU02:FS01:Server responded WORK_ACK (400)
   Line 3981: 05:23:39:WU02:FS01:Final credit estimate, 37951.00 points
   Line 3982: 05:23:39:WU02:FS01:Cleaning up
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DemonfangArun
 
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Re: Nvidia 350.05 with opencl 1.2

Postby DemonfangArun » Mon Apr 06, 2015 9:11 pm

ok, found the issue. new core version works great...after i force the client to download it >.>

i think someone somewhere didn't update the WS to trigger downloading a new core version that has the code that looks for newer drivers :!:

on that note, getting ~131k on 10477, about 20% below average points but certainly more than the crappy 45k or so i was getting, so i'll take it.

also of note, i HATE windows when it cannot be bothered to put gpu indices in the right order, gpu 0 with an opencl index of 1 and gpu 1 with an opencl index of 0 :roll:
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Re: Nvidia 350.05 with opencl 1.2

Postby 7im » Mon Apr 06, 2015 9:58 pm

It's like the United Nations of slot ordering, no one can agree on a fixed definition! Windows? Driver? Motherboard position? OpenCL index? CUDA index?
How to provide enough information to get helpful support
Tell me and I forget. Teach me and I remember. Involve me and I learn.
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Re: Nvidia 350.05 with opencl 1.2

Postby DemonfangArun » Mon Apr 06, 2015 10:17 pm

7im wrote:It's like the United Nations of slot ordering, no one can agree on a fixed definition! Windows? Driver? Motherboard position? OpenCL index? CUDA index?


that gave me a good laugh :lol:
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Re: Nvidia 350.05 with opencl 1.2

Postby EXT64 » Wed Apr 08, 2015 12:41 am

Yeah, that is what I was worried about Demonfang - by chance did you notice if it was a new Core Version #? Periodically I delete all my cores, just to make sure there isn't a sneaky core update hiding :D
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Re: Nvidia 350.05 with opencl 1.2

Postby DemonfangArun » Wed Apr 08, 2015 12:58 am

EXT64 wrote:Yeah, that is what I was worried about Demonfang - by chance did you notice if it was a new Core Version #? Periodically I delete all my cores, just to make sure there isn't a sneaky core update hiding :D


yep, it was on 0.0.3 and after wiping cores folder (since it has a haphazard folder structure) it retrieved 0.0.4 and immediately started chewing along full speed (comparatively). still doesn't change that the client, especially with beta flag set, should be more proactive about checking for new cores (perhaps this could be added in the future? check once a day if any new core versions exist).

that aside, as stated before, ppd seems low on core18 vs core 17 units:
core17: ~160k average
core18: ~135k average
but as with beta, i still chalk this up to either approximation of value and fix later and focus on getting science done, or further core optimizations that have yet to be realized (or most likely both). that said, i tend to use points as a relative measure of work getting done (as i think others do) and seeing lower than optimal (in this case ~170k ppd) points tells me my card is not being as efficiently utilized as it could be (i always factor in 5% just for normal variances, and it's below 95% of 170k). all that said, at least it's not core15 >.> :lol:

oh, and yes, i have been running folding nonstop for a few days bar some fumbling around with slots from the aforementioned indices clusterf*** and some wu's getting dumped as a result >.>
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Re: Nvidia 350.05 with opencl 1.2

Postby bruce » Wed Apr 08, 2015 1:37 am

DemonfangArun wrote:
EXT64 wrote:yep, it was on 0.0.3 and after wiping cores folder (since it has a haphazard folder structure) it retrieved 0.0.4 and immediately started chewing along full speed (comparatively). still doesn't change that the client, especially with beta flag set, should be more proactive about checking for new cores (perhaps this could be added in the future? check once a day if any new core versions exist).


The WU is responsible for specifying the minimum version of the core. If you have version 0.0.3 on your system (or nothing) and a WU specifies that it requires 0.0.4, a new core will be downloaded. If the WU specifies that it only requires 0.0.3, a new core will not be downloaded, even if it is on the server. It's the responsibility of the project owner to adjust his project so that the WUs specify the required core. The client doesn't keep track of any of that information, other than to read the information from inside the WU and dispatch the specified core, downloading it if necessary.
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Re: Nvidia 350.05 with opencl 1.2

Postby 7im » Wed Apr 08, 2015 2:07 pm

Bruce is right about when the client pulls a new core. I would add that if the 0.0.4 version of the core is still in beta status, the researcher is NOT going to update the minimum core version requirement in the existing projects to force the new core to download on unsuspecting donors.

It is then up to beta testers to trigger the download manually. However, a well planned researcher could release a new beta project with the new core requirement. Depends on timing I guess, confidence in the new core version, etc.
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nVidia Driver 350.12 -- OpenCL 1.2

Postby Grendel » Mon Apr 13, 2015 7:28 pm

nVidia released 350.12 today, from the release notes:

OpenCL 1.2
Added support for OpenCL 1.2. The OpenCL 1.2 drivers are based on the published Khronos Specification and are expected to pass the Khronos Conformance Testing Process. Current conformance status can be found at http://www.khronos.org/conformance.

Kepler and Maxwell GPUs are supported, including the following: [GT 640 to GeForce GTX TITAN X]


Will OpenCL 1.2 be supported out-of-the-box by the current cores 17 & 18 ? Trying to figure out if I should even consider replacing 327.23 on my folders (reluctant to touch running systems that are spread all over the place...)

Edit: Thanks for merging my post. Thread slipped right by me... :)
Last edited by Grendel on Tue Apr 14, 2015 2:42 am, edited 1 time in total.
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Re: nVidia Driver 350.12 -- OpenCL 1.2

Postby bruce » Mon Apr 13, 2015 9:33 pm

A FAHCore that uses OpenCL requires a certain minimum version. If the Pande Group needs a feature that's only in 1.2, they'll need to rewrite the core to use that feature and then find a way to restrict it to machines that have that driver, so NO, the existing cores won't start using it out-of-the-box.

On the other hand, if 1.2 happens to fix some bugs that were in the previous version, you'll benefit from that.
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