Points drop off

Moderators: Site Moderators, FAHC Science Team

Re: Points drop off

Postby goodyca » Sat Jul 20, 2013 9:57 pm

I updated a computer from Fedora 18 to Fedora 19 on July 16th. This was a fresh install of Fedora 19. Fedora 18 was running kernel 3.9.9-201.fc18.x86_64 and Fedora 19 is running kernel 3.9.9-302.fc19.x86_64. The same version of fahclient was installed for both: fahclient-7.1.52-1.x86_64, and the client configuration is the same. Configuration information:

Code: Select all
*********************** Log Started 2013-07-20T11:16:24Z ***********************
11:16:24:************************* Folding@home Client *************************
11:16:24:    Website: http://folding.stanford.edu/
11:16:24:  Copyright: (c) 2009-2012 Stanford University
11:16:24:     Author: Joseph Coffland <joseph@cauldrondevelopment.com>
11:16:24:       Args: --child --lifeline 971 /etc/fahclient/config.xml --run-as fahclient
11:16:24:             --pid-file=/var/run/fahclient.pid --daemon
11:16:24:     Config: /etc/fahclient/config.xml
11:16:24:******************************** Build ********************************
11:16:24:    Version: 7.1.52
11:16:24:       Date: Mar 20 2012
11:16:24:       Time: 13:32:16
11:16:24:    SVN Rev: 3515
11:16:24:     Branch: fah/trunk/client
11:16:24:   Compiler: GNU 4.1.2 20080704 (Red Hat 4.1.2-46)
11:16:24:    Options: -std=gnu++98 -O3 -funroll-loops -mfpmath=sse -ffast-math
11:16:24:             -fno-unsafe-math-optimizations -msse2
11:16:24:   Platform: linux2 2.6.18-164.11.1.el5
11:16:24:       Bits: 64
11:16:24:       Mode: Release
11:16:24:******************************* System ********************************
11:16:24:        CPU: Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
11:16:24:     CPU ID: GenuineIntel Family 6 Model 45 Stepping 7
11:16:24:       CPUs: 8
11:16:24:     Memory: 7.72GiB
11:16:24:Free Memory: 7.34GiB
11:16:24:    Threads: POSIX_THREADS
11:16:24: On Battery: false
11:16:24: UTC offset: -5
11:16:24:        PID: 977
11:16:24:        CWD: /var/lib/fahclient
11:16:24:         OS: Linux 3.9.9-302.fc19.x86_64 x86_64
11:16:24:    OS Arch: AMD64
11:16:24:       GPUs: 1
11:16:24:      GPU 0: NVIDIA:1 G98 [GeForce 8400 GS]
11:16:24:       CUDA: Not detected
11:16:24:***********************************************************************
11:16:24:<config>
11:16:24:  <!-- FahCore Control -->
11:16:24:  <core-priority v='low'/>
11:16:24:
11:16:24:  <!-- Folding Slot Configuration -->
11:16:24:  <gpu v='true'/>
11:16:24:
11:16:24:  <!-- Network -->
11:16:24:  <proxy v=':8080'/>
11:16:24:
11:16:24:  <!-- Remote Command Server -->
11:16:24:  <command-allow v='127.0.0.1,192.168.48.0/24'/>
11:16:24:  <password v='********'/>
11:16:24:
11:16:24:  <!-- User Information -->
11:16:24:  <passkey v='********************************'/>
11:16:24:  <team v='439'/>
11:16:24:  <user v='goodyca'/>
11:16:24:
11:16:24:  <!-- Folding Slots -->
11:16:24:  <slot id='1' type='SMP'>
11:16:24:    <cpus v='-1'/>
11:16:24:  </slot>
11:16:24:</config>

Since the update, all projects have taken a significantly longer time to complete.

Project 8567 increased from 822 to 1134 minutes on average
Project 8702 increased from 124 to 175 minutes on average
Project 8704 increased from 690 to 962 minutes on average

Has anyone else seen a similar increase when upgrading to Fedora 19?

Any suggestions where to start looking for potential problems?
goodyca
 
Posts: 180
Joined: Sun Dec 02, 2007 1:36 pm

Re: Points drop off

Postby PantherX » Sat Jul 20, 2013 11:16 pm

By chance, are there any additional (new?) tasks running in the background which might result in a slowdown in SMP folding.
ETA:
Now ↞ Very Soon ↔ Soon ↔ Soon-ish ↔ Not Soon ↠ End Of Time

Welcome To The F@H Support Forum Ӂ Troubleshooting Bad WUs Ӂ Troubleshooting Server Connectivity Issues
User avatar
PantherX
Site Moderator
 
Posts: 6850
Joined: Wed Dec 23, 2009 10:33 am
Location: Land Of The Long White Cloud

Re: Points drop off

Postby goodyca » Sat Jul 20, 2013 11:51 pm

I haven't added any new tasks. The output from top indicates that fahclient is getting close to 100% of the CPU cycles.
goodyca
 
Posts: 180
Joined: Sun Dec 02, 2007 1:36 pm

Re: Points drop off

Postby PantherX » Sun Jul 21, 2013 1:26 am

At this point, I would suggest that it might be something changed in the kernel which might explain what you are seeing. If you want, can you please do a fresh installation again and see if the issue is still present? I am assuming that the power options are the same so the CPU isn't downclocking or something along those lines which would explain the increased time to complete the WU on the same hardware.
User avatar
PantherX
Site Moderator
 
Posts: 6850
Joined: Wed Dec 23, 2009 10:33 am
Location: Land Of The Long White Cloud

Re: Points drop off

Postby goodyca » Sun Jul 21, 2013 8:58 pm

I have found the problem. The CPU frequency is being reduced by thermal monitoring. When the CPU core temperatures reach about 60 degrees C, the frequency is reduced to about 1.1 GHz from 3.6 GHz. I haven't made any changes to the BIOS. This wasn't a problem with Fedora 18. I need to find out how to increase the temperature set point.
goodyca
 
Posts: 180
Joined: Sun Dec 02, 2007 1:36 pm

Re: Points drop off

Postby Jesse_V » Mon Jul 22, 2013 9:03 am

Is there a particular reason that you're sticking with 7.1.52? The current version is 7.3.6. Many bugs have been fixed, many feature requests implemented, though the controls have also changed. Upgrading won't affect your downclocking issue of course.

I wasn't aware that Fedora ran such a new kernel. 3.10 looks amazing.
F@h is now the top computing platform on the planet and nothing unites people like a dedicated fight against a common enemy. This virus affects all of us. Lets end it together.
Jesse_V
Site Moderator
 
Posts: 2851
Joined: Mon Jul 18, 2011 5:44 am
Location: Western Washington

Re: Points drop off

Postby goodyca » Mon Jul 22, 2013 4:28 pm

Jesse_V wrote:Is there a particular reason that you're sticking with 7.1.52? The current version is 7.3.6. Many bugs have been fixed, many feature requests implemented, though the controls have also changed.

I upgraded all four of my computers to 7.2.9 last October. After the upgrade, two of the four had a problem with FAHControl not being able to always communicate with FAHClient. The two upgrades with this communication problem were returned to version 7.1.52 and have not had any more issues.

After reading about the new interface for version 7.3.6 on this forum, I decided that I prefer the earlier versions.
goodyca
 
Posts: 180
Joined: Sun Dec 02, 2007 1:36 pm

Re: Points drop off

Postby 7im » Mon Jul 22, 2013 5:12 pm

goodyca wrote:
Jesse_V wrote:
After reading about the new interface for version 7.3.6 on this forum, I decided that I prefer the earlier versions.


Please give more details on what the new interface lacks? What's wrong with the newer layout? Constructive feedback is always welcomed. And if you don't express it, we can't make improvements. ;)
How to provide enough information to get helpful support
Tell me and I forget. Teach me and I remember. Involve me and I learn.
User avatar
7im
 
Posts: 10189
Joined: Thu Nov 29, 2007 5:30 pm
Location: Arizona

Re: Points drop off

Postby goodyca » Mon Jul 22, 2013 8:15 pm

goodyca wrote:I updated a computer from Fedora 18 to Fedora 19 on July 16th. This was a fresh install of Fedora 19. Fedora 18 was running kernel 3.9.9-201.fc18.x86_64 and Fedora 19 is running kernel 3.9.9-302.fc19.x86_64. The same version of fahclient was installed for both: fahclient-7.1.52-1.x86_64, and the client configuration is the same. Since the update, all projects have taken a significantly longer time to complete.

Project 8567 increased from 822 to 1134 minutes on average
Project 8702 increased from 124 to 175 minutes on average
Project 8704 increased from 690 to 962 minutes on average

I was able to solve this issue by changing the CPUfreq governor to "performance". The default Fedora 19 install sets the CPUfreq governor to "powersave". The default setting for Fedora 18 appears to be "ondemand".
goodyca
 
Posts: 180
Joined: Sun Dec 02, 2007 1:36 pm

Re: Points drop off

Postby PantherX » Mon Jul 22, 2013 11:00 pm

Thanks for informing us about that. Am sure that it will help donors in the future if they encounter this issue.
User avatar
PantherX
Site Moderator
 
Posts: 6850
Joined: Wed Dec 23, 2009 10:33 am
Location: Land Of The Long White Cloud

Previous

Return to V7.1.52 Windows/Linux

Who is online

Users browsing this forum: No registered users and 1 guest

cron