Posts by Keck_Komputers

1) Message boards : Number crunching : No Work for PPC? (Message 58350)
Posted 2 Jan 2009 by Profile Keck_Komputers
For example, LHC has such requirements for precision in comparison of results that they support very few architectures ... because of this difficulty. We even saw, from time to time differences and difficulties comparing from AMD to Intel in the early days (if memory serves).

Your memory is correct. Eventually they had to provide their own math libs and bypass the standard libs to get results that matched cross platform.
2) Message boards : Number crunching : Result duration correction factor? (Message 56770)
Posted 8 Nov 2008 by Profile Keck_Komputers

934880 Core 2 Duo @ 2.0 Ghz: 51.49 credits for 10,547.06 seconds
934895 Turion x2 @ 1.6 Ghz: 22.25 credits for 10,147.02 seconds.


Those numbers look pretty close to normal to me. The core 2 architecture is one of the most efficient out there right now. Plus there is a substantial clock speed difference as well. I expect you will find similar differences at your other projects once you have some returned tasks, excluding SETI if you use optimised applications.
3) Questions and Answers : Windows : minirosetta_1.3: I WANT MY PROCESSOR BACK! (Message 55946)
Posted 22 Sep 2008 by Profile Keck_Komputers
Even though it uses 100% of the CPU the app will normally get out of the way gracefully when another task needs the CPU. The main exception to this rule is if your machine does not have enough memory and it has to make use of the swap file.
4) Questions and Answers : Windows : Why cant i see the screensaver? (Message 55704)
Posted 12 Sep 2008 by Profile Keck_Komputers
Hmmm... that must be a Vista thing then. On XP, you can see the graphic with either Rosetta application. Over time, more and more of the tasks will be running Mini, so it won't matter.

Partially a vista thing and partially an install mode thing. Vista is a bit more secure so getting any pre-V6 graphics to work is problematic. If you install V6 with only the screensaver/compatibility mode selected you can get graphics from both types on most XP systems. However this is not a recommended install mode, BOINC will only run when you are logged in and you are more susceptible to rouge apps.
5) Questions and Answers : Windows : Why cant i see the screensaver? (Message 55687)
Posted 11 Sep 2008 by Profile Keck_Komputers
If you are running a version 6 client that is the expected behavior. The mini apps are version 6 compliant, but the regular rosetta apps are not.
6) Message boards : Number crunching : granted credit < 10% of claimed credit (Message 55274)
Posted 25 Aug 2008 by Profile Keck_Komputers
This project does seem to grant a bit low, but within 10% of the average. However if what I remember of how credit works here is correct, it is the other projects that need to make adjustments. This project takes the average of what is claimed per model for each type of task then grants it per model. The first few tasks returned of a given type can vary widely but after a few thousand are returned it is probably closer to what the credit should be than any other project.
7) Message boards : Number crunching : latest official release of 6.2.16 and no graphics (Message 55049)
Posted 12 Aug 2008 by Profile Keck_Komputers
uninstalled and reinstalled this version from the web. downloaded a new copy of it from the server just in case.

Result is still NO GRAPHICS on 5.98 work.

What up with this?

The 5.98 rosetta app has not been updated to work with the new graphics API. The minirosetta app will work though.
8) Message boards : Number crunching : Installing double OS (Message 54625)
Posted 23 Jul 2008 by Profile Keck_Komputers
Shouldn't be any problems. Ubuntu should install a new boot loader that will allow you to choose which OS to use when you boot up. You may even be able to share some files between the OSs.
9) Message boards : Number crunching : USERS WANT CRUNCH ON GPU WITH CUDA!!! (Message 54469)
Posted 13 Jul 2008 by Profile Keck_Komputers
GPUs are not always good for distributed computing. They typically sacrifice accuracy for speed, DC projects usually need maximum accuracy. Most GPUs are only capable of working with single precision floats, the projects usually need double precision.

Contacting Stanford probably would not help. I don't think they hold any critical information. They just had the man-hours to adapt a subset of their research for ATI GPUs.

BOINC is moving forward with making it easier for projects to use non-CPU resources. However the projects still have to develop the programs to use them. In most cases this will be harder than developing applications for linux or windows.
10) Message boards : Rosetta@home Science : No Graphics (Message 53409)
Posted 28 May 2008 by Profile Keck_Komputers
I have also had this problem with the mini apps. I have been hesitant to report it since I am using the test versions of the client.
11) Message boards : Cafe Rosetta : beta? (Message 53030)
Posted 13 May 2008 by Profile Keck_Komputers
RALPH is for alpha testing. Some things need a bit more testing so you see a few beta tasks from time to time.
12) Message boards : Number crunching : AMD64 machine removed from Rosetta - mostly errors - few credits (Message 52995)
Posted 11 May 2008 by Profile Keck_Komputers
One thing that you may be missing is the 32bit compatability libs. This project does not actually have a 64bit app so all tasks will error out if you do not have those libs installed. These libs are not normally installed on the ubuntu 64bit distro but can be added through the normal package manager.
13) Message boards : Number crunching : Credit from rosetta@home in not appearing (Message 51991)
Posted 17 Mar 2008 by Profile Keck_Komputers
Since it sounds like you have multiple IDs, do the following (it does take time for BAM's servers to get it right, like a couple of weeks!):

Make sure you have all projects on a single computer (or at least some overlap involving all projects).
Make sure all your projects have the same user name (which it sounds like you already have).

I had this same problem before, and it did take time for it to finally get resolved. BAM will makeup all the credit, so don't worry. Patience is virtue! :)

The user name does not matter. You need to have all the email addresses the same and in lowercase.
14) Message boards : Number crunching : What does TARGET CPU RUNTIME really do? (Message 51825)
Posted 6 Mar 2008 by Profile Keck_Komputers
The setting has no effect on the science. Each task here is composed of multiple searchs starting from a (semi-)random number. The target runtime just sets how many of those starting points you begin from. It will always perform at least one full search so if you set it too low it will run long enough to finish the first one.
15) Message boards : Number crunching : Not getting enough work... (Message 51806)
Posted 5 Mar 2008 by Profile Keck_Komputers
OK, i set my settings to:

Connected to internet Every 7 days
Request 1.5 days of additional work.

It's only downloading an extra 3-4 WUs at a time and when it finishes one it downloads another one. I can't seem to get it to download a whole bunch at once like I want it to.

It's a Core 2 Duo machine and right now it's processing 2 WUs and has 3 on deck. It goes through one every couple hours so it should have more like 100 on deck...

If you swap those settings you will probably get more work. Any 'connect' over 4 will begin decreasing the maximum number of tasks you can have on hand at this project. The deadline here is 10 days so about 40% of that is the maximum queue you can reliably maintain.
16) Message boards : Number crunching : Ubuntu "boinc" user (Message 51440)
Posted 17 Feb 2008 by Profile Keck_Komputers
May I post here? I need help. I installed ubuntu in one of my computers as a dual boot with my Win XP PRO. My intention is to see if I could run Boinc w/ rosetta@home in ubuntu. Unfortunately I failed. Can not install boinc. So I unplug the sata drive where I installed ubuntu. Now I can not boot my Win XP. I am not knowlegeable with linux. I hope someone can help. The only way I can boot on my Win XP os is to reconnect the ubuntu sata drive and select from thew dual booting menu Microsft Windows XP. Thank you very much. joseps

The best way is to use the synaptic package manager to install the BOINC client and BOINC manager packages. Once installed then you can use the manager to attach to whatever projects you like.
17) Message boards : Number crunching : variable run time (Message 51144)
Posted 3 Feb 2008 by Profile Keck_Komputers
Each time you change the run time setting it will confuse the scheduler on your hosts. I would advise setting it to the longer time and leaving it there.
18) Message boards : Number crunching : do you get credit for work returned after deadline has passed? (Message 51143)
Posted 3 Feb 2008 by Profile Keck_Komputers
Sometimes you still get credit for them it depends on the project setup. On this project I would normally wait a few days before aborting.
19) Message boards : Number crunching : Why no R@h work downloading? I also run SETI (Message 50821)
Posted 19 Jan 2008 by Profile Keck_Komputers
While BorgVampire's suggestion will work it is not really a good practice. When you force BOINC to download tasks like that it makes it take that much longer to settle into a more predictable rhythm.

Ingleside gave a very good explanation. One thing to remember is that when you change your queue size it can take up to double the longer setting for things to settle down.
20) Message boards : Number crunching : still unable to merge (Message 50179)
Posted 30 Dec 2007 by Profile Keck_Komputers
It appears that the oldest created host is LOST when merging.

It would have been nice after the merge to have the hosts show the ORIGINAL create/join date rather than the most recent.

It has always been that way. There is less chance of problems this way than trying to save the old number.

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