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World Community Grid Forums
Category: Completed Research
Forum: Discovering Dengue Drugs - Together - Phase 2 Forum
Thread: DDDT-2 Work Unit distribution updated |
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Thread Status: Active Total posts in this thread: 121
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GIBA
Ace Cruncher Joined: Apr 25, 2005 Post Count: 5374 Status: Offline |
Since A and B and C are having different deadlines I suspect there being 3 feeds that also caters for testing if a device is eligible for A or B or C. Interesting. 
Cheers ! GIB@
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Ingleside
Veteran Cruncher Norway Joined: Nov 19, 2005 Post Count: 974 Status: Offline Project Badges: 
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Since A and B and C are having different deadlines I suspect there being 3 feeds that also caters for testing if a device is eligible for A or B or C. It's unlikely variable deadlines has anything to do with this, since if this was the case you could get 10+ similar messages in other BOINC-projects... But DDDT2 uses 2 different app_id, and with multiple applications with no available work you'll get the message once for each applicatiion. If C-type will add a 3rd. app_id I've no idea...  "I make so many mistakes. But then just think of all the mistakes I don't make, although I might." |
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uplinger
Former World Community Grid Tech Joined: May 23, 2005 Post Count: 3952 Status: Offline Project Badges: 
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Yes, there are currently 2 applications for DDDT-2. This is why two different messages. We have one for type A work units, since they are large and unique. B and C use the same.
-Uplinger |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
OK, the app is the difference, there being a difference. Can the message be adapted to say, "No A", "No B/C"?
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WCG
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X-Files 27
Senior Cruncher Canada Joined: May 21, 2007 Post Count: 391 Status: Offline Project Badges: 
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There's another thing I notice in BOINC, "Average turnaround time". We can add this creteria for #1. For sure, with this added, we can fast track the type c's.
----------------------------------------edit: taken from here. <reliable_max_avg_turnaround>secs</reliable_max_avg_turnaround> snip... NOTE: this mechanism can be used to preferentially send ANY job, not just retries, to fast/reliable hosts. To do so, set the workunit's priority to reliable_on_priority or greater.   [Edit 2 times, last edit by X-Files 27 at Mar 8, 2010 1:53:28 AM] |
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knreed
Former World Community Grid Tech Joined: Nov 8, 2004 Post Count: 4504 Status: Offline Project Badges: 
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OK, the app is the difference, there being a difference. Can the message be adapted to say, "No A", "No B/C"? The name of the project included in the message is the name of the project (i.e. it will show up in the task list and elsewhere). I have altered the name of the projects to be: Discovering Dengue Drugs - Together - Phase 2 Discovering Dengue Drugs - Together - Phase 2 (Type A) Type A are now clearly identified and the one not clearly labeled will be for the B and C type workunits |
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knreed
Former World Community Grid Tech Joined: Nov 8, 2004 Post Count: 4504 Status: Offline Project Badges:
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There's another thing I notice in BOINC, "Average turnaround time". We can add this creteria for #1. For sure, with this added, we can fast track the type c's. edit: taken from here. <reliable_max_avg_turnaround>secs</reliable_max_avg_turnaround> snip... NOTE: this mechanism can be used to preferentially send ANY job, not just retries, to fast/reliable hosts. To do so, set the workunit's priority to reliable_on_priority or greater. We are already ready using that feature (which we contributed). Type A workunits have a base priority of 10 and sent only to reliable hosts (the cut of on priority for reliable hosts is 10 for WCG). They have a deadline of 20 days but since they are being sent to reliable hosts the deadline is 40% of the original value so it is sent as 8 days. Type B workunits have a base priority of 1 which means they will be distributed ahead of Type C workunits. They have a 7 day deadline (resends will have a 2.8 day deadline). Type C workunits have a base priority of 0. They have a 10 day deadline (resends will have a 4 day deadline). Our config.xml settings that are relevant to the reliable feature are: <reliable_max_error_rate>0.002</reliable_max_error_rate> <reliable_max_avg_turnaround>172800</reliable_max_avg_turnaround> <reliable_reduced_delay_bound>0.4</reliable_reduced_delay_bound> <reliable_on_priority>10</reliable_on_priority> <reliable_priority_on_over>10</reliable_priority_on_over> |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 2982 Status: Offline Project Badges: 
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OK, the app is the difference, there being a difference. Can the message be adapted to say, "No A", "No B/C"? The name of the project included in the message is the name of the project (i.e. it will show up in the task list and elsewhere). I have altered the name of the projects to be: Discovering Dengue Drugs - Together - Phase 2 Discovering Dengue Drugs - Together - Phase 2 (Type A) Type A are now clearly identified and the one not clearly labeled will be for the B and C type workunits Hi Kevin, thanks for that - it certainly makes things a little clearer. If my understanding is correct, does this mean that the B/C 'pot' is checked first, before the 'A' types? If so, I'm a little surprised, as, due to the trickle effect, I'd have thought that it would have been more urgent to distribute the A's (to the reliable hosts) first, before the B's and C's. Edit: Actually, if I remember reading somewhere, I think the "Resend queue" (which of course, these "A"'s will be), is checked first, then the Beta WU queue (neither of which, would display a message if empty), then the normal queues. Thus, in this scenario, the A's would get distributed before the B/C types.  [Edit 1 times, last edit by gb009761 at Mar 8, 2010 2:30:29 PM] |
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X-Files 27
Senior Cruncher Canada Joined: May 21, 2007 Post Count: 391 Status: Offline Project Badges:
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thanks knreed, its good to know this stuff.
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GIBA
Ace Cruncher Joined: Apr 25, 2005 Post Count: 5374 Status: Offline |
OK, the app is the difference, there being a difference. Can the message be adapted to say, "No A", "No B/C"? The name of the project included in the message is the name of the project (i.e. it will show up in the task list and elsewhere). I have altered the name of the projects to be: Discovering Dengue Drugs - Together - Phase 2 Discovering Dengue Drugs - Together - Phase 2 (Type A) Type A are now clearly identified and the one not clearly labeled will be for the B and C type workunits Thank you.
Cheers ! GIB@
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