Posted on 10/04/2007 9:20:01 AM PDT by texas booster
The PandeGroup has all been very excited about the great turnout of FAH donors over the last few weeks, allowing FAH to go over a petaflop. The PS3's have been cranking out some very useful scientific results due to the new scientific software present in v1.2. The PS3's are so fast, we've been looking at the results sometimes 2x to 3x a day (instead of a couple times a month). If all goes well, we're hoping to write up these results soon (maybe a few weeks) for peer reviewed publication.
It's also interesting to think about what we want to do post-petaflop. One idea we have is to make the calculation even more accurate. With the methods we have in mind, this normally would slow us down quite a bit (say 10x slowdown), but on the PS3, it's likely that we may get a lot of that for free, as the memory access is the challenging part and in many ways with that now addressed, we may get more flops for free.
This really changes how we think of the economy of doing these calculations and is pushing us to more and more accurate models. One upshot for FAH is that this would drive the PS3's GFLOP rate (now typically 35 GFLOPS on a new GB WU) even higher, closer to the peak. Since the peak is something like 200 for the Cell, we still have a lot of room to possibly grow (although it's unclear how close one can get to the theoretical peak -- my guess is that 70 to 90 per PS3 may be the max for us). Nevertheless, even 70-90 would mean FAH would start getting close to 2 Petaflops!
-- Vijay Pande
It seemed to install and appears to be running.
If anyone knows how to get the 5.91 version I would like to know in case the beta6 ver has any of the reported problems.
TIA
Position 66 to 46 in two weeks. Top ten here we come... ;-)
Man, I officially don’t like the fah6 in Linux.
It is not faster, it is slower by a lot. Either that or the individual steps take a lot more processing because where I often had 20 min between steps I now have 40 or more.
Furthermore they are assigning me work units that take 1 1/2 days to process and giving me 206 points for it ... with the fah 5.x version I worked that hard and got 1760.
I think the options (such as -verbosity 9) have changed too because although there is some data, the table at the end that show time, gflops etc. is missing.
I know .. for the greater good, for the greater good, for the greater good ...
btw; if the date in your virtual world is prior to 10/1/07 they don’t force you to change.
I am thinking of a little time travel.
You could complete more folding by installing the regular console version on each of the cores and just let them fold. Be sure to set the Machine ID = 1, 2, 3, 4 as needed for each core.
The 1760 points is for an SMP project. Is it possible that you are running the non-SMP kernal instead?
Other than that, it looks like the v6 beta is supposed to fold at the same speed at the v5.04 beta 5. It’s possible that the projects have changed, but it doesn’t seem that they are much different.
After posting I had a couple of blue screens with my 64bit dual machine.
I decided to stop running the VMWare w/Linux and load the windows SMP client. There is a 5.91 version as well as the v6 beta.
I have it (the 5.91) running now and it runs 4 instances of the program in two cpu’s (I don’t understand that) but it installed. It is set to run as a console version.
I am using Vista so the bat file you have to run first during the install must be run as an administrator (right-click and choose...). I had to edit the bat file to put the path to the executables that are run in it (a fact not mentioned in the instructions) but after that it is humming along.
I believe there is only one 64bit Linux distribution and it is SMP. That’s as far as I can figure at this point... no matter I am not running it anymore.
I am using time travel on the box that still runs Linux in VMWare. It is only the virtual machine, not the Windows that is in the past.
Now if I can only keep it all straight.
lrenh has doubled his output, probably by dropping in SMP folding onto many servers. Way to go!
It looks like we are getting additional folders, even without new threads. Thanks to all for helping the newbies start folding.
Now that XeniaSt has passed me, I am folding with no one chasing me.
I managed to crack the top 100 on my one year anniversary.
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Thanks to texas booster's help.
I've got the Mac OS X SMP running on 2 machines.
One is the Mac Pro w/ 4 cores each @ 2.66 Ghz.
Also on an iMac w/ 2 cores @ 2.0Ghz.
In addition I run an XP under VMware Fusion on the Mac Pro.
I'm looking forward to next week when Mac OS X is upgraded to Leopard and a true 64 bit Unix operating system.
I anticipate increased output if the SMP runs in 64 bit code.
OBTW the Mac SMP instances all run as Nice
so there is no impact to steaming video or any other application.I watch their progress on Terminal using the command Top
A DIY supercomputer for folding at home
Help! My computer turned in a unit 2-3 days ago, and is unable to download new work. It connects to the assignment server successfully, but it then gives me an “attempt to get work failed” message. Suggestions?
Look in the f@Hlog.txt and lets see what the exact message is. Is there an exact IP address that it is trying to reach?
I understand that there was a network problem a couple of weeks ago. I’ll check the servers later.
This is the latest attempt:
Waiting before retry.
[16:04:11] + Attempting to get work packet
[16:04:11] - Connecting to assignment server
[16:04:11] - Successful: assigned to (171.64.122.131).
[16:04:11] + News From Folding@Home: Welcome to Folding@Home
[16:04:11] Loaded queue successfully.
[16:04:13] - Error: Attempt #13 to get work failed, and no other work to do.
Waiting before retry.
http://www.folding-community.org/
Does not come up. I’ll keep an eye on it until I connect. It is on a different server than the assignment servers, but this doesn’t look good.
I tried to open that page about 20 minutes ago and got that same message. Thanks for your help!
On opening http://www.folding-community.orgI got this message
Fehler 403 ist aufgetreten :-( Filename: /kunden/usr/local/apache/share/cgi-bin/error403.1.html
;)
GOOD LUCK !!!
Don’t “LOL” the dfwddr thing, It’ll work, trust me.
:q
Reboot and see if that triggers a download. I know you are not running W*ndows, but sometimes it works.
Otherwise erase everything but the F@H exe and the config file. It will reload with a reinstall.
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