The ultimate guide to work unit distribution on RALPH

Message boards : Feedback : The ultimate guide to work unit distribution on RALPH

To post messages, you must log in.

AuthorMessage
tralala

Send message
Joined: 12 Apr 06
Posts: 52
Credit: 15,257
RAC: 0
Message 1492 - Posted: 5 May 2006, 19:51:31 UTC

Hi guys,

I read a bit about the boinc system and found some interesting infos about possible work unit distribution. The two most teriffic features for RALPH are:

max_wus_to_send:
Maximum results sent per scheduler RPC.

min_sendwork_interval:
Minimum number of seconds to wait after sending results to a given host, before new results are sent to the same host.

I think with these two parameters one can stop the stockpiling effectively and reduce avg. return time dramatically;

max_wus_to_send: 1
min_sendwork_interval: 1h

This means every host gets only one WU per request and can ask for an additional WU only after an hour. This will lead to a more equal distribution of WU and prevent the first lucky hosts to grab each 20 WUs. It will still allow them to ask for another WU every hour though.

So if I were the work unit distributor of RALPH I would use the following parameters:

deadline: 5 days
daily quota: 10
max_wus_to_send: 1
min_sendwork_interval: 1h

What do you think? Let's discuss the best settings here and propose them to Rhiju after we agreed.
ID: 1492 · Report as offensive    Reply Quote
Profile feet1st

Send message
Joined: 7 Mar 06
Posts: 313
Credit: 116,623
RAC: 0
Message 1494 - Posted: 5 May 2006, 22:00:40 UTC

ID: 1494 · Report as offensive    Reply Quote
Profile JKeck {pirate}
Avatar

Send message
Joined: 16 Feb 06
Posts: 14
Credit: 153,095
RAC: 0
Message 1551 - Posted: 9 May 2006, 13:51:21 UTC

I think the quota should be lower, 2 or 4, other than that those look like good settings for a test project.
BOINC WIKI

BOINCing since 2002/12/8
ID: 1551 · Report as offensive    Reply Quote
Profile Astro

Send message
Joined: 16 Feb 06
Posts: 141
Credit: 32,977
RAC: 0
Message 1552 - Posted: 9 May 2006, 14:22:28 UTC

I think 4. It takes atleast 2 errors to start seeing a pattern, then others would be needed to narrow it down.
ID: 1552 · Report as offensive    Reply Quote

Message boards : Feedback : The ultimate guide to work unit distribution on RALPH



©2024 University of Washington
http://www.bakerlab.org