Cosmology@home - Calculated RAC for CPUs
In the past months I noticed regular requests from Gridcoin team members on Steemit, looking for the RAC output of their systems to determine which Gridcoin project to crunch.
This gave me the idea to gather information for all whitelisted BOINC projects and calculate per CPU the RAC (Recent Average Credit) and potential earnings.
Cosmology@home
In this episode I am presenting an overview of 1,100 CPUs with the calculated RAC and daily earnings for Cosmology@home. I have only included those CPUs for which I have gathered sufficient information based on sample set of 17,500+ hosts and 2,000,000+ work-units.
After reviewing 14 whitelisted projects, Cosmology@home is currently on position 5 and as such an above average earning project for CPUs (see table below).
I have also added the average RAC for the included CPUs to show the difference in points distribution per project and as you can see above, there is no correlation between system RAC and earnings between projects.
Info on Github
Due to the large number of CPUs and projects, I have stored the output separately on Github. The main file can be downloaded in Excel format or OpenDocument format.
The file contains the following worksheets:
- Worksheet 1: Average daily earnings per project
- Worksheet 2: Daily Gridcoin earnings per CPU for all projects
- Worksheet 3 to 16: CPU calculated RAC and GRC earnings per project
- Worksheet 17: Threads per CPU
- Worksheet 18: GRC per 1k RAC for each project
I will continue to update the file with more projects and refresh the earnings so it is best to download the latest version from Github.
Average daily earnings per project
In case you don’t know your CPU, you will likely achieve the maximum earnings for your system by selecting one of the first projects in table on the first worksheet (see also table above). Don’t confuse the numbers in the table with actual earnings, it is merely an index to compare the earnings potential between projects. Obviously, the project ranking will change when computing power is shifting across projects so I will continue to update the table to reflect this.
The ranking of projects is established in the following way:
- Select those CPUs which have results in all projects (this applies to 324 CPU types at the moment)
- With the selected CPU types calculate the average earnings for each project
- Sort the projects from highest to lowest average daily earnings
Calculated RAC
I used the following formula to calculate the system RAC:
Breakdown of the formula:
- Σ points of sample set, is the amount of points credited by the project for the returned results
- Σ time of sample set, is the total time it took to process all returned WUs
- Σ CPU threads, is the number of CPU cores x CPU threads.
Three assumptions as part of these calculations:
- Multithreading is enabled in the BIOS
- The calculated RAC is based on running one BOINC project, 24/7 on all cores
- The higher the number of gathered WUs per CPU, the more accurate the RAC value
Previous episodes
The table below presents a summary of all projects introduced so far including high-level details per project.
Project | CPUs | Hosts | WUs | Information |
---|---|---|---|---|
Asteroids@home | 1,303 | 19,462 | 2,885,452 | Raw data p1 (Size: 21 MB), Raw data p2 (Size: 17 MB) |
Citizen Science Grid | 1,118 | 14,368 | 1,657,693 | Raw data (Size: 24 Mb) |
Cosmology@Home | 1,092 | 17,758 | 2,124,977 | Raw data p1 (Size: 16 MB), Raw data p2 (Size: 12 MB) |
Enigma@home | 746 | 3,775 | 2,143,679 | Raw data (Size: 17 Mb) |
LHC@Home | 1,279 | 17,727 | 2,189,428 | Raw data p1 (Size: 14 MB), Raw data p2 (Size: 15 MB) |
NFS@home | 1,016 | 56,273 | 1,666,526 | Raw data (Size: 19 Mb) |
Numberfields@home | 1,009 | 20,885 | 1,542,956 | Raw data (Size: 23 Mb) |
PrimeGrid | 931 | 9609 | 2,030,902 | Raw data p1 (Size: 20 MB), Raw data p2 (Size: 25 MB) |
Rosetta@home | 1,585 | 57,240 | 2,042,631 | Raw data p1 (Size: 18 MB), Raw data p2 (Size: 17 MB), Raw data p3 (Size: 19 MB) |
SETI@home | 1,747 | 122,277 | 2,213,442 | Raw data p1 (Size: 20 MB), Raw data p2 (Size: 24 MB), Raw data p3 (Size: 19 MB) |
SRBase | 640 | 6,997 | 1,732,240 | Raw data (Size: 15 Mb) |
theSkyNet POGS | 1,155 | 13,046 | 2,285,013 | Raw data p1 (Size: 8 MB), Raw data p2 (Size: 19 MB) |
TN-Grid | 905 | 9,468 | 2,238,497 | Raw data (Size: 21 Mb) |
Yoyo@home | 953 | 6,617 | 1,704,412 | Raw data (Size: 17 Mb) |
Data source: BOINC project websites
Where do you get your data from?
Sorry if this has been asked before i'm kinda curious. Also maybe we could help pitch in if you want.
All data is obtained directly from the various project websites. I have written a small tool to extract the information from the webpages. When there are enough work-units I compile the information you now find on github, using Excel and pivot tables.
Because it is a sequential process, you can't really help but I appreciate that you offer it!
Would be great to get these data in real time...
It is one of the things I'm considering. My initial thoughts would be to build something like http://wuprop.boinc-af.org/ and provide calculated RAC and GRC earnings.
I know there are already several people here on Steemit including @sc-steemit who have developed tools in this area so we could nicely combine the efforts, I hope.
A helpful post for the future
Thank you, I hope it can be of use in making it easier selecting Gridcoin whitelisted projects.