log in
1) Message boards : News : A new look (Message 3431)
Posted 6 Apr 2015 by Profile Jack.Harris
MindModeling is now sportin' a new fresher look.
Thanks to Nathan for this mobile-friendly update.
-- Jack
2) Message boards : Number crunching : HumMod (Message 3372)
Posted 10 Feb 2015 by Profile Jack.Harris
I have contacted the modeler regarding this issue and suspended creation of new work creatiountil we have this resolved.

Sorry for the inconvenience and thanks for the help.
Jack
3) Message boards : Number crunching : Server down (Message 3344)
Posted 20 Jan 2015 by Profile Jack.Harris
Filled up a partition last night.
Things should be flowing again
Jack
4) Message boards : News : Hails and Farewells (Message 3335)
Posted 17 Jan 2015 by Profile Jack.Harris
Farewells:
First off, we are sad to announce that Tom has had a great job offer and has recently left the MindModeling development team. However, Tom's love for the project has not changed and will be transitioning to 'volunteer contributor/moderator' status. You may still see him on the forums from time to time.

Tom has been an extremely valued team member: leading efforts on both server-side and client-side programming as well as being our primary support to our volunteer contributors. His presence has been (and will be) greatly missed, but we are excited for Tom in his new job.

All The Best and Happy Crunching Tom!

Hails:
We would like to welcome and introduce two new members of the MindModeling team: Brandon and Nathan.
Brandon has taken over the responsibility of being primary support to our volunteer contributors, so you'll see him popping up on the news feed and in the forum.
Nathan has taken over a lot of our (internal and external) website design and feature development.

We are very excited to have these two programmers on board!

--Jack
5) Message boards : News : CogSci 2014! (Message 3259)
Posted 7 Aug 2014 by Profile Jack.Harris
CogSci 2014, the annual meeting of the cognitive science society, held its 36th annual meeting this year in Quebec City, Canada

The theme was:
"Cognitive Science Meets Artificial Intelligence: Human and Artificial Agents in Interactive Contexts"

Many MindModeling researchers were both presenting their research and interacting with other cognitive scientists from all other the world at this event.

You can visit Cognitive Science Society's website here: http://cognitivesciencesociety.org/conference2014/index.html.

Or checkout the conference's proceedings (hosted by MindModeling.org) here:
http://mindmodeling.org/cogsci2014/
-
6) Message boards : Number crunching : Linux Application fails - Native Python v2.7 Application v1.05 (sse2) (Message 2685)
Posted 28 Oct 2013 by Profile Jack.Harris
The 7za executable dynamically links to libc.so.6
my bet is that your system does not have /lib/libc.so.6

There is a chance symlinking /lib/libc.so.6 to your current version of libc may make things work

(sudo ln -s /lib/libc.so.yourversion /lib/libc.so.6)

you might actually find it here:
/lib/x86_64-linux-gnu/libc.so.6
or
/lib/i386-linux-gnu/libc.so.6

ldconfig should look in these locations and find the dynamically linked library libc.so.6 but for some reason it isn't

here is a few helpful link about libc and multi-arch support in ubuntu (Linux Mint 64-bit system is a derivative of Ubuntu so it may have also been moved)
http://askubuntu.com/questions/40416/why-is-lib-libc-so-6-missing

Let us know how it goes,
Jack
7) Message boards : Number crunching : Problems with 591 series (Message 2612)
Posted 3 Sep 2013 by Profile Jack.Harris
When we originally timed a single simulation of 591 it took 40 mins (much longer than most of our simulations).
On top of that, there seemed to be a lot of variability in the runtimes of this batch of work.
The mean simulation ended up taking 1 hours and 7 mins with some taking much longer.

Thanks to everyone who contributed to completing the 591 job -- we are currently working on a methodology that can break up these larger simulations into smaller chunks and reintegrate the results on the server. This feature (automatic sampling) would allow for a much finer grain level of checkpointing for volunteers and actually make things easer for the modelers as well. Unfortunately, there is a good bit of heavy lifting that needs to be done on the server code to accommodate it.

Hopefully, we should have it done in the next 3 weeks.

Jack
8) Message boards : Number crunching : Getting no tasks, no error message in event log. (Message 2580)
Posted 5 Aug 2013 by Profile Jack.Harris
dqualls,

You are correct - we do not have a 32-bit version of the Linux application currently compiled.
Sorry about that -- 64-bit only

Jack
9) Message boards : Number crunching : BitDefender claims you're infected with MIDAS3 (Message 2495)
Posted 25 Feb 2013 by Profile Jack.Harris
Thanks Ivanst for the information.
Well look into the MIDAS3 signature to see what could be causing the false-positives.
Weird!
Jack
10) Message boards : Science : LSF Integration (Message 2481)
Posted 16 Feb 2013 by Profile Jack.Harris
This is probably too old to matter, but if anyone wants to get a copy of these scripts PM me.
We are integrated with LSF, PBS and LL batch systems.

The scripts submit boinc instances for a given amount of time and then sends commands to abort any workunits not finished a little before the time expires. The script will then reschedule more jobs if it had to abort anything.

Jack
11) Message boards : Number crunching : cant change password (Message 2364)
Posted 20 Oct 2012 by Profile Jack.Harris
PM sent

We are planning on moving from 'server_stable' to the 'trunk' version of the BOINC server code in the near future. Hopefully this will resolve the issue about accounts created via BOINC-Wide teams.
-Jack
12) Message boards : News : New 1.89 Windows App Released (Message 2281)
Posted 15 Oct 2012 by Profile Jack.Harris
I recommend resetting the project /twice/
That seems to help when this issue crops up.

13) Message boards : News : New 1.89 Windows App Released (Message 2278)
Posted 15 Oct 2012 by Profile Jack.Harris
The 1.89 application actually shares a lot of files that were used by the 1.88 application so as to minimize the bandwidth requirement needed to deploy the new application. The only file that is actually different is the wrapper executable (mm_wrapper_1.14_windows_intelx86.exe; old version is 1.13).
--Jack
14) Message boards : News : L'Alliance Francophone takes first position and is ready to show their real strength (Message 2276)
Posted 14 Oct 2012 by Profile Jack.Harris
And thank you -- your crunching power is already being missed.
15) Message boards : News : New 1.89 Windows App Released (Message 2226)
Posted 11 Oct 2012 by Profile Jack.Harris
A new 1.89 Windows application was released today which removes a bug causing a workunit to possibly hang at 100% complete for up to 2 hours on some Windows systems before finishing. This improved application as already produced a 25-30% average performance improvement compared to the 1.88 application.

Also, congratulations to tempo for being the first cruncher to accumulate over 3 million credit on the MindModeling project.
Excellent!
--Jack
16) Message boards : Number crunching : 60+ hours... is this normal? (Message 2225)
Posted 11 Oct 2012 by Profile Jack.Harris
The new 1.89 windows app released today improves on the watch dog feature inside of our application. It removes the issue where a job gets to 100% and hangs until the 2.5 hour mark is reached. Programs completing 100% of the simulations in the workunit are forcefully terminating after 1 minute if they do not gracefully exit on their own. We have already seen on average a 25% improvement across windows hosts from 1.88 to 1.89 on Windows.
--Jack
17) Message boards : News : Congratulations are in order (Message 2224)
Posted 2 Oct 2012 by Profile Jack.Harris
hl just joined the 1M total credit club!

Furthermore, tempo has been crunching away and has become only the second person in MM history to pass the 2M total credit mark.

Great job and thanks for the help!
--Jack
18) Message boards : News : Record Setting Week (Message 2222)
Posted 1 Oct 2012 by Profile Jack.Harris
This week recorded our top 7 best crunching days in MM history.

In that time there were 9 completed cognitive model explorations and our latest version of the very large 'Change Signal' job is now 25% of the way complete.

Milestones:
- tempo became the next member the 1M total credit club
- GATE became the first 2M credit cruncher for the project
- L'Alliance Francophone has become the #1 team in terms of both RAC and Total Credit
- Project passed the 4 TFlop mark

Thanks Everyone -- Let's keep crunching!
-Jack
19) Message boards : Number crunching : Compute errors (Message 2221)
Posted 1 Oct 2012 by Profile Jack.Harris
The Windows Error
Details about the Windows Error for our CCL application on some Windows boxes:
> Error of type CCL::SIMPLE-FILE-ERROR: File exists : "C:/ProgramData/BOINC/slots/"
> While executing: CREATE-DIRECTORY, in process listener(1).
app exit status: 0xffffffff
22:49:20 (3684): called boinc_finish

The problem seems to manifest itself if the host is running Deep Freeze .
The current working theory about why this could be happening is that the Deep Freeze application makes use of a minifilter driver to produce the equivalent of a UNIONFS/RAM-overlay file system in Windows.
Unfortunately, this operation of intercepting IO operations is interacting badly with our Clozure Common Lisp application when it attempts to interact with the filesystem.

Now that we have a working theory we will try to reproduce, isolate and fix this issue.
20) Message boards : Number crunching : Compute errors (Message 2220)
Posted 28 Sep 2012 by Profile Jack.Harris
1) We would be very interested in working directly with anyone experiencing the first issue.
> Error of type CCL::SIMPLE-FILE-ERROR: File exists : "C:/ProgramData/BOINC/slots/"
We have not been able to reproduce the issue on any of our systems.
Details about the system configurations where this issue occurs may be helpful. Offline testing of potential test environments directly with us would also be helpful (PM me if anyone is interested in helping us in that way). Our current ideas about the issue revolve around latency in write data to the drive (perhaps the drives may be SAN disks) -- in that case some sleep logic may help -- or maybe the issue may be permissions related.
More research on this issue is required.

2) This issue is caused by the fact that the system has a kernel that is too old to run the binary. You may be able to fake a system into working since the actual function call is to a very basic function 'strcat'
cd /lib/x86_64-linux-gnu/
ln -s /lib/x86_64-linux-gnu/libc.so.[whatever number you have -- 4? 5?] libc.so.6

Hope this helps someone,
Jack


Next 20

Main page · Your account · Message boards


Copyright © 2020 MindModeling.org