-bigadv, Set yourself up BIG, a users guide

FrEaKy

[H] Movie and TV Show Review Guy
Joined
Jan 31, 2003
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Things to know before you start attempting to do -bigadv

Some ideas on Bargain builds can be found in this thread.

(A wealth of other FAQ can be found here, written by Kassen)

1) To use -bigadv flag you will need an 8CPU core or better computer.
The cores can be virtual, so running on an i7 or a dual-quad core Xeon/Opteron setup should work.

1b) It is possible to run on a 4 core box, but the CPU must be overclocked to or over 4GHz in order to make the 4 day bonus deadline.

1c) Possible speeds to make it per CPU

2) The bigadv client will need 4.5GB or more ram to run, so a system with 6GB or more is recommended.

3) The client can be run on a 64bit Linux install or through a 8 core VM using VMWare Player 3.0 with 64-bit Windows OS

3b) If your system requires virtualization to be turned on through the bios to use more than 1 core, make sure you do so.

3c) If you plan on running 16 or 32 CPU cores OR MORE, than a 64-bit Linux install will be your only option in doing so, there is no free VM that will run with this many CPU cores at this time.

#note# With 4x 8 core VM's in Windows OS, there is a potential of 45K PpD, 32 cores on a Linux install, possibility of 85k PpD. Bonus calculator

4) In order to do -bigadv a passkey is required.

4b) In order to attain a passkey, please go here

5) You will not see the bonus kick in until after you complete 10 SMP units. (This is for verification purposes from Stanford)

5b) You need to have completed 10 Core A2 based SMP units against your passkey before you can get start getting a bonus. They can be normal SMP units or they can be -bigadv units but they must be recorded against your passkey

5c) You will notice a long pause at the end before the WU uploads at completion, this is a normal process, do not reset your client.

6) -bigadv WU's have a 4 day deadline.

6b) 2.7 days to make the 50K cutoff, 4 days for the 25K cutoff.

6c) To check and see if you will make the deadline, if a normal SMP WU is faster than 6.5K PpD, you should be able to make the deadline, obviously, the higher the better.

7) The WU's have an upload size of 95MB or more, this could make an upload time of 30-40 minutes on slower connections and will take an additional couple minutes to half an hour to clean up the work files at the end of the run. So add an addition hour to the end of the WU completion before you receive your next WU.

Link to foxtrotniner's -bigadv backup script

Installing the -bigadv client with Finstall for Linux;

Installing the bigadv client with Finstall.

I always use Finstall to install the FaH client on Linux.
Its quick and easy.
Code:
curl -O http://ra.vendomar.ee/~ivo/finstall
chmod +x finstall
./finstall smp
If curl does not work try .........
Code:
wget http://ra.vendomar.ee/%7Eivo/finstall
More Info on Finstall.

Once you have configured the client, make sure to add passkey, shut it down as you need to do a clouple more tweaks.
First:- you need to ddownload and drop in the new fah6 from http://www.stanford.edu/~kasson/folding/osx/fah6
If you dont do this you get a bad argument message when you add the -bigadv flag.

Second:- You need to change the default flags the client starts with.
Open the FaH file with an editor and find the line .....
Code:
 FAH_default_flags="-smp -verbosity 9"

If your just running standard work-unit change it to .......
Code:
FAH_default_flags="-smp X -verbosity 9"
Where X is the number of cores you want it to run on.
It can either be the number of cores on your computer or the number minus one if you want to save a core for something else.

If your running bigadv then change it to ......
Code:
FAH_default_flags="-smp X -bigadv -verbosity 9"

If you want to install the client as a service just run .....
Code:
./installService

To start, stop and restart the client use ........
Code:
CD ~/foldingathome
To change to the folding directory.
Then.......
Code:
./folding start
./folding stop
./folding restart
To start,stop, restart it.

Luck .................. :D

Installing a VM client; (This is being updated continuously over at eVGA forums, so this information may no longer be up to date, I will try and refresh it as it is updated there.)

Quoted from linuxrouter on evga.com/forums
This thread is dedicated to folding bigadv in VMware. Below is a screenshot of 7-core SMP folding of bigadv in Windows XP x64 using VMware 3.0 Player.



The TPF with 7-core folding is 34:52 with my i7 @ 3.8 GHz.

There are examples of systems, PPD, and bonus points at this forum thread:

http://foldingforum.org/viewtopic.php?f=55&t=11314

To calculate bonus points and PPD based on TPF, go here:

Bonus Point Calculator:
http://www.linuxforge.net/bonuscalc.php

Leaving one core unused is probably not the worst idea if GPU folding at the same time. This leaves a virtual core over for the GPU clients and other system resources.

Image and instructions

As requested, I have compressed a copy of my Linux image consisting of the necessary fah client. This image is for bigadv units and the bigadv folding requires an i7 or dual socket setup consisting of 8 or more cores. At least 6GB total memory is necessary. The bigadv Windows VMware folding is experimental and stability is unknown. Make sure your system, CPU, and memory are completely stable and all temps under load are normal before trying out these bigadv units. Also make sure your operating system has enough available resources including memory. This can be checked in Windows task manager. This image can also be used to run the regular 1920 pt Core A2 work units.

The image can be download here:


Linux FAH Image v0.7 (7z - 34.1MB) ; http://folding.braindancer.net/linuxrouter/VMWare-FAH-0.7.7z

Linux FAH Image v0.6 (Mirror 1) (Zip - 60.1MB) ; http://hotfile.com/dl/22198169/1abd201/VMWare-FAH-0.6.zip.html
Linux FAH Image v0.6 (Mirror 2) (Zip - 60.1MB) ; http://folding.braindancer.net/linuxrouter/VMWare-FAH-0.6.zip
Linux FAH Image v0.6 (Mirror 2) (7z - 37.2MB) ; http://folding.braindancer.net/linuxrouter/VMWare-FAH-0.6.7z
Linux FAH Image v0.6 (Torrent) (Zip - 60.1MB) ; http://drop.io/vmwarefah06

Linux FAH Image v0.4 (Mirror 1) ; http://hotfile.com/dl/18563526/e72bb21/VMWare-FAH-0.4.zip.html
Linux FAH Image v0.4 (Mirror 2) ; http://folding.braindancer.net/linuxrouter/VMWare-FAH-0.4.zip

Thanks to wb488641 and braindancer for providing file mirror locations. Thanks to gotspeed for making the torrent.

VMWare Player Download

VMWare Player 3.0:
http://downloads.vmware.com/d/details/player_3_0/ZGp0YmQlJSpiZGVkZA==

Folding backup scripts provided by TheCrazyCanuck (see further down the thread for more info)

Folding backup scripts:
http://www.evga.com/folding/files/FAH_SMP_BACKUP_v0_1.rar

Thanks to Shane @ EVGA for hosting the file and thanks to TheCrazyCanuck for spending the time writing the backup scripts and instructions.

Utilities

Qfix - Linux 64-bit build:
http://www.linuxforge.net/fah/img/qfix/qfix
Source:
Link 1: http://linuxminded.xs4all.nl/mirror/www.boston.quik.com/rph/fah.html
Link 2: http://linuxminded.nl/?target=software-qd-tools.plc#qd.c

7-Zip offers much better compression options than using Zip. The compression program can be found here:

7-zip:
http://www.7-zip.org/

Installation

1) Install VMWare Player 3.0 - default options

2) Download and unzip the image. Put the file anywhere you like as long as there is at least 4GB free storage.

3) Startup VMWare Player

4) Click File - Open a Virtual Machine

5) Go to the location where you put the image and double click on the Linux64_FAH.vmx file.

6) The VMX file is preconfigured to use 8 processors and 3600MB memory. Before starting the VM machine, you have the option to "Edit virtual machine settings" and adjust RAM. 3600MB seemed to work okay for me but you may want to allocate more memory just to make sure the client has what it needs. Double click on the name "Linux64_FAH" to start the virtual machine.

7) Wait for Linux to boot. You will see a command prompt. Just above, there are instructions on how to setup FahMon. The system will attempt to get an IP by DHCP and will tell you that IP address.

8) Login with the following:

FAH Login: fah
Password: fah1234

9a) This step is for web-based configuration. If you would rather configure with the fah6 client then skip this step and go to 9b.

When you first boot up the virtual machine it will tell you the HTTP address. The format should be:

http://ip/

where IP is the IP address assigned to the virtual machine.

Enter your username, team id, and passkey here. Optionally, you can change the hostname or enable auto-startup for the fah client with v0.6. Click submit when finished. You must reboot with the command reboot if you change the hostname or enable auto-startup for the changes to take effect.

To get a passkey:
http://fah-web.stanford.edu/cgi-bin/getpasskey.py

When you have done that, shutdown the web service with this command (unless you plan to use the web logs):

v0.4 or newer:

web disable

V0.2-0.3:

/etc/rc.d/rc.httpd stop; chmod 644 /etc/rc.d/rc.httpd

This will save some memory and also close down the web port for security.

Start fah6 with this command in the virtual machine:

./fah6 -bigadv -smp 7

9b) Command line configuration:

With this configuration, the web interface is not being used so this service can be turned off with this command:

v0.4 or newer:

web disable

v0.2-0.3:

/etc/rc.d/rc.httpd stop; chmod 644 /etc/rc.d/rc.httpd

To startup and configure the folding client:

./fah6 -bigadv -smp 7

For configuration, you will need your login, team (33), and passkey. To get a passkey:

http://fah-web.stanford.edu/cgi-bin/getpasskey.py

The only two options I change from default is I select "big" for the unit size when prompted and I enable advmethods under Advanced Options when prompted.

10) (Optional)

8-core bigadv folding may be possible if you allocate enough memory to the virtual machine. At least 4600MB will need to be allocated, if not more. Make sure that Windows has enough resources before trying this. Thanks goes to brentpresley over at foldingforum.org for the tip on setting a greater memory allocation to the virtual machine.

./fah6 -bigadv -smp 8

It is also possible to run the smaller 1920 pt work units via this system (replace with 8 with however many cores you like and your system supports):

./fah6 -smp 8

11) (Optional) With v0.6, you can now view the folding log file via the web:

http://IP/log.php

Additional Information and Configuration Options


Bonus point requirements

1) At least 10 Core A2 work units must be completed. (1920 or 25403 pt units qualify)
2) At least 80% of Core A2 work units must be completed in time.
3) A passkey must be used.

GNU License

The Linux image software is covered under the GNU General Public License Version 2:
http://www.gnu.org/licenses/gpl.html

ChangeLog

VMware Linux Folding ChangeLog:
http://www.linuxforge.net/fah/vmware-changelog.html

Folding backup scripts and instructions provided by TheCrazyCanuck

TheCrazyCanuck



These files will allow you to backup your FAH contents to your Windows machine every hour. Those of you who have real servers to backup files just tweak the username, password, and location accordingly. These files also take care of backing up the ramdrive if you happen to use it. The reason why you would want to backup every hour is because if the FAH client restarts early then you might loose days worth of work that is either not backed up or has been backed up and replaced by another backup.

The hourly backups also resync the clock just in case it was drifting over time. I give you the option of starting up the client with a RAM disk using what Linuxrouter has provided and I give you instructions on how you can retain those contents since they are volatile.

*Disclaimer: I expect anyone who uses this to read the instructions and not complain to me if they loose a WU because they were too lazy to follow instructions. I also take no responsibility for anything you manage to bugger up on the host or VM.*

View original IP configuration information

If you missed the original configuration information including the IP address, FahMon setup, and web configuration address, then you can run this command to see that information again:

info

Solution for client error "Could not connect to Primary Assignment Server for ID" (Credit to pgmoney for solution)

The virtual machine needs an IP on the network in order to access the Internet and the folding servers. If on startup the IP is missing in the notification, then this configuration change may give the virtual machine access to the network.

1) Open VMWare and select Linux64_FAH but do not start the virtual machine
2) Click "Edit virtual machine settings"
3) Click on Network Adapter
4) Change Network Connection from Bridged to NAT
5) Click OK and start the virtual machine

Shutting down or restarting

To shutdown the virtual machine, run this command:

shutdown -h now

To reboot the virtual machine, run this command:

reboot

Multiple Consoles

The image supports opening multiple consoles at once (max 6). Simply hit ALT+F2 through F6 and login. Then you can run other commands while folding at the same time.

Sample Configuration Screenshots

Config Screenshot 01:
http://www.linuxforge.net/fah/vmware-fah-config.jpg
Config Screenshot 02:
http://www.linuxforge.net/fah/webconfig03.jpg

-- Advanced Options --


SSH / Screen Session Setup (Optional)

For those familiar with SSH, there is also the option to access the virtual machine and FAH client remotely.

Only do this if you are familiar with SSH and feel that your network is adequately secure.

To enable SSH:

chmod 755 /etc/rc.d/rc.sshd; /etc/rc.d/rc.sshd start

You can now SSH into the virtual machine using the fah login. Make sure your network is secure first. I would highly recommend setting a new password for the fah account to something more secure using the command: passwd fah. Alternatively, setup a key pair. Use your favorite SSH client. I use Putty in Windows and OpenSSH in Linux.

Setup a screen session:

screen -R -D -S fah

Startup FAH:

./fah6 -bigadv -smp 7

Detach from screen session:

CTRL A + D

Reconnect to the screen session at a later time:

screen -rx fah

Using this method you can login to your virtual machine from another system on the same network or from another site if your network is configured for remote access (VPN) and then join into the screen session again to monitor your FAH client.

Ramdisk (v0.4 or greater)

v0.4 has support for setting up a Ramdisk. There is a script called buildramfs that you can run to set up the Ramdisk. This script creates a Ramdisk with a default size of 750000K to accommodate the bigadv work files. It also automatically copies the files from the work folder and mounts the Ramdisk to the work folder. You will need at least 500MB of available memory and allocated to the virtual machine for these files. The Ramdisk does grow and uses in memory what it needs up to the file system size. The script takes one argument of size where you can specify another size instead of the default 750000K.

Only do this if you have the available memory, have an adequate backup plan, and feel comfortable working with Linux. You will want to backup your files somewhere. These are several options you might consider:

1) Setup a batch file in Windows that copies the work folder and queue.dat file to the host OS on a scheduled time interval using scheduled tasks.
2) Mount a Windows shared folder in Linux using CIFS and copy the files to the Windows shared folder using a Cronjob.
3) Copy the files to a location on the Linux file system of your choosing using a Cronjob.
4) Copy the files manually.

Increase the resolution for the virtual machine

The default resolution is 1024x768x16 for the virtual machine. To set a higher resolution, on first boot when the red LILO bootloader shows up, hit the tab key. You only have 3-seconds to hit the tab key. Enter the following:

2.6.32.2-intel vga=0x346

This will set the resolution to 1600x1200x32 so that you can see a greater amount of information in the virtual machine at once. A couple other options:

0x344 - 1280x1024x32
0x355 - 2048x1536x32

Old Forum Thread

Link to old forum thread:
http://www.evga.com/forumsarchive/tm.asp?m=100994828

Information added from the following threads;
http://www.hardforum.com/showthread.php?t=1476242
http://www.hardforum.com/showthread.php?t=1467934
https://www.evga.com/forums/tm.aspx?m=4464

Contributors; Pocatello, Tigerbiten, nitrobass24, Tobit, Kendrak and newxperiment

*If anything is missing or incorrect, let me know I will fix it asap on this top link*

Add more as it comes my way! :)
 
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Change the team number
Posted via [H] Mobile Device
 
5) You will not see the bonus kick in until after you complete 10 SMP units with -bigadv (This is for verification purposes from Stanford)

Some elaboration is in order here. You need to have completed 10 Core A2 based SMP units against your passkey before you can get start getting a bonus. They can be normal SMP units or they can be -bigadv units but they must be recorded against your passkey.
 
At the beginning of the post, I'd put in a link to the official -bigadv FAQ which also outlines the background of this trial program. It was written by Kasson, one of the developers, and contains quite a bit of info. It can be found here:

http://foldingforum.org/viewtopic.php?t=10697
 
Very nice.

After you get the last few things hammerd out, PM Xil and he will add it to the sticky.
 
will need 4.5GB or more ram to run
It's something like 1.1gb per 2 threads.

winAFC tutorial would be nice too, for people who use their i7, if you mention no slow down in games, we'll get more and more ppl! :)
 
It's something like 1.1gb per 2 threads.

winAFC tutorial would be nice too, for people who use their i7, if you mention no slow down in games, we'll get more and more ppl! :)

Just set priority to low. I don't see a need to go wrangling with 8 threads trying to get everything to play nice.

Just kick the VM to the bottom of the heap and go on as normal.

However, playing a games for extened periods could make you miss the bonus time frame.
 
You can actually use the regular WinAFC tutorial from the Notfred client's setup guide if you absolutly need it, but if you set the VM's client to low priority (as Kendrak stated) than you will not need to worry if you decide to game a bit here and there.
 
Just set priority to low. I don't see a need to go wrangling with 8 threads trying to get everything to play nice.

In task manager? Either way it should be mentioned in the guide.

Maybe some info about i7 clocks x Ghz= y ppd, safe temps, recommended hardware, how to stress test for ram/cpu first.

Threads keep popping with these questions.
 
In task manager? Either way it should be mentioned in the guide.

Maybe some info about i7 clocks x Ghz= y ppd, safe temps, recommended hardware, how to stress test for ram/cpu first.

Threads keep popping with these questions.

No, you want to set idle inside the VM file with the two lines of code (same as the refreshed SMP guide) That way on a reboot you don't have to reset everything.

I like you idea of a aprox ppd for the speed. the problem is everytime we get a new core or WU those numbers get shot to hell.

Now a way a getting your CPU -bigadv stable without corrupting a bunch of WU and wasting time... that needs looked into.
 
5) You will not see the bonus kick in until after you complete 10 SMP units with -bigadv (This is for verification purposes from Stanford)

I believe you only need to complete 10 smp WUs, not bigadv specific ones. When i started up at the beginning of the month, i cranked out 10 SMP -big and then switched to -bigadv and got all the bonus.
 
I will see what I can find out, but im trying to crunch a new -bigadv on a Q9550, which is hell right now. If someone with an i7 can message me with the information or thread it, we can link it here for sure.

Stickied now.
 
I believe you only need to complete 10 smp WUs, not bigadv specific ones. When i started up at the beginnign of the month, i cranked out 10 SMP -big and then switched to -bigadv and got all the bonus.

Yup, you dont need -bigadv units, just normal SMP units. I will fix this.
 
well approximate -bigadv numbers let's say:

[email protected] under native linux, ramdrive, etc = 32k ppd
[email protected] vmware -smp 8 = 26k ppd
[email protected] vmware -smp 8 = 24k ppd
[email protected] vmware -smp 8 = 22k ppd
[email protected] vmware -smp 7 = 21k ppd
xeon, opterons, etc

I'm pulling some numbers out of my ass tho lol

Yeah about stress test, I'm no oc guru but : 1) loosen ram timings and speed 11-11-11-28-3 1000mhz, set high voltages 1.43vcore. 2) find max BLCK stable with linx 3) lower voltages until crashing then add a bit more and keep ram a bit loose (don't think you'll lose much points) 4) stress test 24h linx, memtest 5) try running -smp 8 24h. 6) Then, start running -bigadv :p
 
I believe you only need to complete 10 smp WUs, not bigadv specific ones. When i started up at the beginning of the month, i cranked out 10 SMP -big and then switched to -bigadv and got all the bonus.


From the thread and the Folding forum.


Q: Do I have to fold 10 of these work units within the deadline before qualifying for bonuses, or does the bonus system take prior performance into account?
A: The bonus system is linked to passkeys. If you have been folding A2 work units under a passkey, you should have have a prior performance record.
 
just a word to concider for those of us who don't have i7 machines.

they suggest 6500PPD minimum
my Q9650 OCed to 4.15Ghz gets about 6300 PPD
based on that to get 6500, a Q9650 needs to clock around 4.28GHz
good luck to anyone hitting that (tho I'll try sometime)

based on completing a 25403 in 4 days, thats 6351 PPD. This is about as close to the wire as you can get and still see a bonus. Bonus calc says 43999.29 Points at 10999.82 PPD, or 4648.82 PPD more than what you would have had.

6351 PPD works out to be a minium clock of 4180
 
That's great to get 10k out of a s775 rig, but that is one heck of an OC and not much room to play with on the deadline.
 
So, I've got my sig rig off of WCG and am going to attempt some Big WUs in a Linux VM.

I cleared out my FoldingAtHome Folder and did a fresh install from finstall. I changed the default fah_config file to requst big WUs and also replaced the FaH6 binary with the one that Mikey976 poined to just above. I also did install as a service.

When I try to start, it says FAILURE. There is no additional info and no log indicating there was an error. Any thoughts on where to start researching this? I uninstalled Workstation so I can't create a new Linux VM.
 
Any thoughts on where to start researching this? I uninstalled Workstation so I can't create a new Linux VM.

I would just start at the basics by removing all the new flags and seeing if you can start a standard SMP work-unit.
If it works add the smp X flag where X is the number of cores you want it to run on.
If that works add the bigadv flag, the flag won't do anything untill you start a new work-unit.

Also did you run Finstall with the smp flag ??

Ps. you do have a passkey on that client ??

Luck ............. :D
 
ran finstall with SMP flag. Passkey is set (checked client.cfg file). No parameters in fah_config file and still no joy.

I just reran finstall. When configuring, it shows "Memory,in MB, to indicate (1 available)" I have the VM configured for 6GB and system monitor is showng 5.7GB (400MB for swap). Shouldn't this be showing a much larger number?
 
The client has a slight glitch when it trys to detect a large amout of memory.
One of my bigadv clients has it still set as 999 from doing standard work-units andits running fine.
Just set it by hand to 4999 in the config section or by editing the client.cfg file

Luck ........... :D
 
can you configure the client? ie: (./fah6 -configonly)?

if not make sure you (chmod -x fah6) which makes the fah6 binary executable, i forgot to do that myself.
 
problem solved. issue was binary linked in 22 above. For some reason or another, it was only 303K byes versus 1.1MB when downloaded via the link in folding forum.

It is running now and we'll check to see where we are in an hour or so.

edit: so should it pull down a normal WU first and then it will at some point grab a big WU? It is currently running a normal WU at about 7250 PpD.
 
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Here's a question... there is an abundance of used servers on eBay, and there are a few IBM servers from the Pentium 4 days, with eight 3.0GHz (or more) single core Xeons for around $200 last I checked. I have access to a rack at work, that I can throw it on and just use their internet connection and power to keep it running 24/7, and set up SSH on it and all that jazz. The only thing is, I was wondering if those would be any good at -bigadv folding? There probably isn't much experience out there with this particular architecture, and I know the P4 architecture was almost a flop, however if it does the job for ~$250 that would be a killer deal. I would have to add more RAM to it, but is this even worth it?

Thanks
 
The only thing is, I was wondering if those would be any good at -bigadv folding?
They'd be useless.. it wouldn't work at all. bigadv's require several cores to crunch on with 8 cores being the ideal and have tight deadlines. Some folks are coming very close to meeting the deadlines with quad cores overclocked to 4.3 to 4.5 GHz but I can't think of anyone actually doing it on a regular basis. You need at least 8 cores in a single box to properly crunch -bigadv. Pentium 4's and single core Xeons would be worthless to this project.
 
They'd be useless.. it wouldn't work at all. bigadv's require several cores to crunch on with 8 cores being the ideal and have tight deadlines. Some folks are coming very close to meeting the deadlines with quad cores overclocked to 4.3 to 4.5 GHz but I can't think of anyone actually doing it on a regular basis. You need at least 8 cores in a single box to properly crunch -bigadv. Pentium 4's and single core Xeons would be worthless to this project.

Well there are 8 processors, making 8 cores total. Not sure if they are hyperthreaded as well.
 
Well there are 8 processors, making 8 cores total. Not sure if they are hyperthreaded as well.
Ahh, I mis-read. Yeah, they might work if they had enough RAM in them. I have two empty racks, pick one up and let us know how it works. =) If they are 3.0GHz P4's with HT that'd be 16 cores and it might just work. Y
 
I'll have to wait for the bid to get closer to ending, it still has 5 days to go. I'm hoping it's one of those things that is un-noticed lol. I also noticed it does not have rails, and will need 2 "scalability cables" in order to use all 8 cores.
 
I'd like to know if that ends up working. Power bill wouldn't be fun, but you save a bunch on hardware costs.
 
8 single-core Netburst Xeons will probably still be slower than a single i7 with HT enabled, assuming they are at the same speeds. I doubt that it would work too well.
 
Kendrak, that's the beauty of having a rack at work :-D I wouldn't buy these if I didn't have access to a rack and power at work. My company doesn't pay for power usage at our building, so it's no big deal, and since Folding uses relatively little network traffic, it's not really a hassle to him to have servers running there (within reason) as long as they aren't a security threat.

So I have a few choices that I found so far:

IBM xSeries 445 with 8 3GHz P4-era Xeons. Problems with this one - price could go up before bid is over, only 2GB of RAM, will need "scalability cables" to run all processors which are not included, and no rails are included (which I know from experience get expensive). (currently bid at $202.50)

Sun Fire v40z with 4 dual-core 2.4GHz Opteron 850s, and 16GB of RAM. Rails included. (buy it now at $339.99)

I know that those Pentium 4 cores weren't that great for their time, but I don't know how Opterons from roughly the same time stack up against them. Any personal experience? The Sun system would be cheaper to get running at full capacity than the IBM so I would probably go that route, but he seller is apparently not around until Jan 4.
 
Dual-core Opterons will be Athlon 64-based and should perform a fair amount better than P4s. That machine also comes with 16GB of RAM, which is a big advantage since finding 16GB worth of DDR for a reasonable price isn't very easy nowadays. For the first machine, I have a feeling you'd end up spending as much as you paid for the thing initially just to get it up and running in a state suitable for running -bigadv folding, and even after that it would still probably do worse than the Opteron rig.
 
Ah piss, I just looked into it deeper and found that the Opteron 850 is a single-core CPU. There are some others that have dual-core CPUs, but I'm not sure if there is an upgrade path there (probably as fast as it got from what I could see)
 
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Ah piss, I just looked into it deeper and found that the Opteron 850 is a single-core CPU. There are some others that have dual-core CPUs, but I'm not sure if there is an upgrade path there (probably as fast as it got from what I could see)
All legacy quad-socket Opteron systems should be upgradeable to dual-core processors excluding cases of proprietary architecture I may not be familiar with. This will most likely be S-940 and that is definitively upgradeable to dual-core processors, which are relatively cheap nowadays. I have a dual socket-940 system and it originally had two uni-core processors that I upgraded to dual-cores a couple of years later.
 
Thanks for the heads up Apollo. I priced out a Phenom II system using this processor

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727

And it cost me about $600. Which is a little more than what it would cost for one of those Sun servers with dual core processors put in (maybe less, who knows?). Plus being brand new components, I'm sort of feeling that route a little better, only problem is that wouldn't really be up to -bigadv folding.
 
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