Maxwell GPUs

[billford]

As long as they're identical, you can switch them and resume work. That would eliminate the slight chance that one is positioned in a hotter part of it's case than the other.

Hadn't thought of that... thanks.

[billford]

Something of a personal best today- NVidia drivers upgraded on 3 machines without breaking an OS Maybe I've finally got the hang of it...

It's a bit early to be sure, but the 355.11 drivers seem to be producing noticeably lower PPD than the old 346.35 ones. So maybe 7im was right, and that 350-upwards drivers are better because they're more stable.

Time will tell... I'll get the "feel" of them for a few days before putting the adv flag back thus inviting some of the heavier stuff.

Picked up some useful tips in this topic, many thanks to all

[58Enfield]

CUDA-Z "http://cuda-z.sourceforge.net/" will run on debian based linux, but seems to need cuda 5.0 or higher to install. I'm still running two gtx 650 Ti's on 304.128 drivers and the installer won't work on the associated cuda 3.0. The software provides three screens of info but no capability changes.

[billford]

CUDA-Z "http://cuda-z.sourceforge.net/" will run on debian based linux, but seems to need cuda 5.0 or higher to install.

I can manage the CUDA (5.2) but the Linux is Ubuntu based (Mint 17.2). Any chance it might work?

[davidcoton]

Ubuntu is Debian based (unless I've got things horribly wrong...).

[billford]

Ubuntu is Debian based (unless I've got things horribly wrong...).

Well if you have, so has Wikipedia

Thanks, I'll look into that later on when there's half a chance I'm awake!

At the moment I'm running nvidia-smi in a 30-second "watch" loop, and at least one Core-21 WU (a P10495) is running the card very close to it's power limit... although it hasn't (yet) fallen over.

[Duce H_K_]

I just wanna say 10495 is a really power eating monster. Consumption peaks over 116% (that's limit for my mod BIOS) & gaining only 308kppd on a GTX970. Linearly thinking, PPD could be closer to this

The new core 21 tends to push the hardware harder than we're used to. If your GPU quality are very different, one might be throttling more than the other (on Windows, GPU-Z gives the value which is called PerfCap reason).

In this state, PerfCap reason showed value PWR (or smth. like that). Clock was downgrading. ASIC Quality of my GPU is 73.1%. I don't know if it's bad or good, I just consider overclock acceptable for most WUs.

Code: Select all

*********************** Log Started 2016-03-10T22:56:06Z ***********************
22:56:06:      Website: http://folding.stanford.edu/
22:56:06:    Copyright: (c) 2009-2014 Stanford University
22:56:06:       Author: Joseph Coffland <joseph@cauldrondevelopment.com>
22:56:06:         Args: --gpu-index=1 --opencl-index=0
22:56:06:       Config: E:/Docbase/FaH-workdir/config.xml
22:56:06:******************************** Build ********************************
22:56:06:      Version: 7.4.4
22:56:06:         Date: Mar 4 2014
22:56:06:         Time: 20:26:54
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22:56:06:       Branch: fah/trunk/client
22:56:06:     Compiler: Intel(R) C++ MSVC 1500 mode 1200
22:56:06:      Options: /TP /nologo /EHa /Qdiag-disable:4297,4103,1786,279 /Ox -arch:SSE
22:56:06:               /QaxSSE2,SSE3,SSSE3,SSE4.1,SSE4.2 /Qopenmp /Qrestrict /MT /Qmkl
22:56:06:     Platform: win32 XP
22:56:06:         Bits: 32
22:56:06:         Mode: Release
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22:56:06:       CPU ID: AuthenticAMD Family 21 Model 16 Stepping 1
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22:56:06:       Memory: 3.46GiB
22:56:06:  Free Memory: 2.58GiB
22:56:06:      Threads: WINDOWS_THREADS
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22:56:06:   UTC Offset: 3
22:56:06:          PID: 2076
22:56:06:          CWD: E:/Docbase/FaH-workdir
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22:56:06:  CUDA Driver: 8000
22:56:06:Win32 Service: false
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23:06:16:<config>
23:06:16:  <!-- Folding Core -->
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23:06:16:  <core-priority v='low'/>
23:06:16:
23:06:16:  <!-- Folding Slot Configuration -->
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23:06:16:
23:06:16:  <!-- HTTP Server -->
23:06:16:  <allow v='0.0.0.0/0'/>
23:06:16:  <deny v='255.255.255.255/255.255.255.255'/>
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23:06:16:  <!-- Remote Command Server -->
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23:06:16:  <command-port v='7936'/>
23:06:16:  <password v='************'/>
23:06:16:
23:06:16:  <!-- Slot Control -->
23:06:16:  <pause-on-battery v='false'/>
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23:06:16:  <next-unit-percentage v='100'/>
23:06:16:
23:06:16:  <!-- Folding Slots -->
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23:06:16:    <gpu-index v='1'/>
23:06:16:    <client-type v='beta'/>
23:06:16:    <cuda-index v='1'/>
23:06:16:    <opencl-index v='1'/>
23:06:16:  </slot>
23:06:16:</config>
09:15:24:WU00:FS00:Connecting to 171.67.108.45:80
09:15:25:WU00:FS00:Assigned to work server 140.163.4.245
09:15:25:WU00:FS00:Requesting new work unit for slot 00: READY gpu:1:GM204 [GeForce GTX 970] from 140.163.4.245
09:15:26:WU00:FS00:Connecting to 140.163.4.245:8080
09:15:27:WU00:FS00:Downloading 5.14MiB
09:15:30:WU00:FS00:Download complete
09:15:30:WU00:FS00:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR project:10495 run:0 clone:40 gen:56 core:0x21 unit:0x000000448ca304f556ba62d48b9a325c
09:15:31:WU00:FS00:Starting
09:15:31:WU00:FS00:Running FahCore: C:\NO_UAC\FAHClient7/FAHCoreWrapper.exe E:/Docbase/FaH-workdir/cores/web.stanford.edu/~pande/Win32/AMD64/NVIDIA/Fermi/beta/Core_21.fah/FahCore_21.exe -dir 00 -suffix 01 -version 704 -lifeline 2076 -checkpoint 6 -gpu 1 -gpu-vendor nvidia -forceasm -twait=80
09:15:31:WU00:FS00:Started FahCore on PID 3196
09:15:31:WU00:FS00:Core PID:5024
09:15:31:WU00:FS00:FahCore 0x21 started
09:15:33:WU00:FS00:0x21:*********************** Log Started 2016-03-11T09:15:32Z ***********************
09:15:33:WU00:FS00:0x21:Project: 10495 (Run 0, Clone 40, Gen 56)
09:15:33:WU00:FS00:0x21:Unit: 0x000000448ca304f556ba62d48b9a325c
09:15:33:WU00:FS00:0x21:CPU: 0x00000000000000000000000000000000
09:15:33:WU00:FS00:0x21:Machine: 0
09:15:33:WU00:FS00:0x21:Reading tar file core.xml
09:15:33:WU00:FS00:0x21:Reading tar file system.xml
09:15:33:WU00:FS00:0x21:Reading tar file integrator.xml
09:15:33:WU00:FS00:0x21:Reading tar file state.xml
09:15:34:WU00:FS00:0x21:Digital signatures verified
09:15:34:WU00:FS00:0x21:Folding@home GPU Core21 Folding@home Core
09:15:34:WU00:FS00:0x21:Version 0.0.17
09:15:51:WU00:FS00:0x21:Completed 0 out of 5000000 steps (0%)
09:15:51:WU00:FS00:0x21:Temperature control disabled. Requirements: single Nvidia GPU, tmax must be < 110 and twait >= 900
09:18:02:WU00:FS00:0x21:Completed 50000 out of 5000000 steps (1%)
09:20:14:WU00:FS00:0x21:Completed 100000 out of 5000000 steps (2%)
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09:24:38:WU00:FS00:0x21:Completed 200000 out of 5000000 steps (4%)
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* * * * 10:34:35:WU00:FS00:0x21:Bad State detected... attempting to resume from last good checkpoint. Is your system overclocked? * * * *
10:36:51:WU00:FS00:0x21:Completed 1550000 out of 5000000 steps (31%)
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13:16:18:WU00:FS00:0x21:Completed 5000000 out of 5000000 steps (100%)
13:16:23:WU00:FS00:0x21:Saving result file logfile_01.txt
* * * * 13:16:23:WU00:FS00:0x21:Saving result file badstate-0.xml * * * *
13:16:29:WU00:FS00:0x21:Saving result file checkpointState.xml
13:16:32:WU00:FS00:0x21:Saving result file checkpt.crc
13:16:32:WU00:FS00:0x21:Saving result file log.txt
13:16:32:WU00:FS00:0x21:Saving result file positions.xtc
13:16:34:WU00:FS00:0x21:Folding@home Core Shutdown: FINISHED_UNIT
13:16:36:WU00:FS00:FahCore returned: FINISHED_UNIT (100 = 0x64)
13:16:36:WU00:FS00:Sending unit results: id:00 state:SEND error:NO_ERROR project:10495 run:0 clone:40 gen:56 core:0x21 unit:0x000000448ca304f556ba62d48b9a325c
13:16:36:WU00:FS00:Uploading 8.76MiB to 140.163.4.245
13:16:36:WU00:FS00:Connecting to 140.163.4.245:8080
13:16:45:WU00:FS00:Upload 40.68%
13:16:51:WU00:FS00:Upload 82.07%
13:17:04:WU00:FS00:Upload complete
13:17:04:WU00:FS00:Server responded WORK_ACK (400)
13:17:04:WU00:FS00:Final credit estimate, 52810.00 points

I'm glad new core was wise enough to ask me 'Did you play with overclocking?' Honestly I did.

Also, core 21 projects are often bigger (number of atoms) and the sanity checks take more time. Those sanity checks are performed on the CPU, so different CPUs might also be a reason that exacerbate the differences.

That's right. As i watched through recent time, smaller 0x21 core WUs eat 2 threads (36-50% of a quad), but the higher the atoms number - the higher cpu load on checkpoints.

[bruce]

... but the higher the atoms number - the higher cpu load on checkpoints.

That's to be expected. The calculations done on the CPU probably increase with the square of the atom count.