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  Thread: Work Available

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erich56
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Re: Work Available
ARP are readily available, but not necessarily immediately. Maybe in a few minutes.

sorry that I disagree -
since I could spare some time, I tried to download ARP tasks by manually pushing the "update" button in BOINC every 3-4 minutes, over a time span of almost 3 hours.
without success :-(
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[Edit 1 times, last edit by erich56 at Aug 8, 2021 2:09:24 PM]
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Mike.Gibson
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England
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Re: Work Available
erich56

I have heard of up to an hour but 3 hours is excessive. It is possible that you have just been unlucky enough to have miss the release of batches.

What are your profile settings? I note that you don't have an ARP badge. Is this the first time you have tried to download ARP? Is your profile set to receive ARP? How large a cache do you have?

What messages do you get when you update? Please copy your event log for an attempted update and post here.

ARP is different from any other projects in that each unit relates to a specific patch of Sub-Saharan Africa and to 2 days of weather. They can't produce the next 2 day generation until the previous one has been validated for that patch. The next generation is produced about 10 minutes after the previous one is validated.

We are returning about 18,000 results per day and there can only be 71,218 available at any one time, so 4 days supply on crunchers machines. However, some hold larger caches unnecessarily, slowing down the process.

Mike
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erich56
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Re: Work Available
hello Mike,

so far, this PC hast processed 2 or 3 ARP WUs within the past days. Only a few days ago I set my profile to download ARP.
I set the cache to 2 days, and by an app_config.xml I set to process 3 tasks simultaneously (on a 4-core processor).
For all other sub-projects, this procedure has worked well over all the years. For projects other than WCG as well.

The message I get when trying to update is as follows:

08.08.2021 16:35:45 | World Community Grid | No tasks sent
08.08.2021 16:35:45 | World Community Grid | No tasks are available for Africa Rainfall Project
08.08.2021 16:35:45 | World Community Grid | Für die gewählten Anwendungen ist keine Arbeit verfügbar.
08.08.2021 16:35:45 | World Community Grid | Tasks for NVIDIA GPU are available, but your preferences are set to not accept them
08.08.2021 16:35:45 | World Community Grid | Tasks for AMD/ATI GPU are available, but your preferences are set to not accept them
08.08.2021 16:35:45 | World Community Grid | Tasks for Intel GPU are available, but your preferences are set to not accept them
08.08.2021 16:35:45 | World Community Grid | Project requested delay of 121 seconds
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knreed
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Re: Work Available
At the bottom of the profile page for there is a section called "Project Limits". The limit for African Rainfall Project is set to the default value of 1. If you change that to a larger limit you will be able to get more than 1 job at a time.
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erich56
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Re: Work Available
At the bottom of the profile page for there is a section called "Project Limits". The limit for African Rainfall Project is set to the default value of 1. If you change that to a larger limit you will be able to get more than 1 job at a time.

oh oh - I did not catch this before :-(
Many thanks for your help; I changed the figure to read 3, and right away I received two WUs in addition :-(

(too bad that the BOINC message always was wrong, when saying that there are not tasks available).
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Mike.Gibson
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Re: Work Available
erich56

Leave your cache at 3, but change app_config.xml to 2. ARP is very intensive at checkpoints. The recommendation is for a maximum of half total threads. OPN & MCM can be on the other threads at the same time.

As you are a newbie to ARP, you should also be aware of the fact that these checkpoints occur every 12.5% and if you shut down your machine or reboot, you will lose all crunching since the last checkpoint, which might be several hours. This does not happen if you 'sleep' or 'hibernate'.

Mike
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erich56
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Re: Work Available
@Mike - many thanks for your hints smile
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knreed
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Re: Work Available
Latest stats:

Average Generation: 81.6
Pace (average time to complete a generation): 4.05 days

first_indexed       generation num_units_currently_on_generation num_units_completed_last_day 
------------------- ---------- --------------------------------- ---------------------------- 
2019-10-01 22:26:53 000                                                                       
2019-10-30 18:58:54 001        6                                                              
2019-12-08 11:56:25 002                                                                       
2020-01-12 02:02:34 003                                                                       
2020-02-08 03:43:00 004                                                                       
2020-02-24 06:27:42 005                                                                       
2020-03-09 17:38:25 006                                                                       
2020-03-17 08:44:19 007                                                                       
2020-03-23 20:52:24 008                                                                       
2020-04-01 14:39:46 009                                                                       
2020-04-12 08:29:32 010                                                                       
2020-04-21 02:41:36 011                                                                       
2020-05-02 03:16:28 012                                                                       
2020-05-10 13:29:40 013                                                                       
2020-05-22 10:46:51 014                                                                       
2020-06-02 21:07:48 015                                                                       
2020-06-20 20:53:08 016                                                                       
2020-07-01 12:31:12 017                                                                       
2020-07-09 18:39:23 018                                                                       
2020-07-18 16:08:31 019                                                                       
2020-07-26 16:32:08 020                                                                       
2020-08-08 15:15:22 021                                                                       
2020-08-19 00:49:10 022                                                                       
2020-08-24 07:02:09 023                                                                       
2020-08-30 05:56:33 024                                                                       
2020-09-04 11:35:58 025                                                                       
2020-09-09 17:27:07 026                                                                       
2020-09-15 06:25:11 027                                                                       
2020-09-20 10:01:14 028                                                                       
2020-09-25 22:07:49 029                                                                       
2020-10-02 07:08:22 030                                                                       
2020-10-07 17:55:57 031                                                                       
2020-10-14 16:25:19 032                                                                       
2020-10-18 20:05:40 033                                                                       
2020-10-25 15:34:22 034                                                                       
2020-10-31 22:55:26 035                                                                       
2020-11-04 06:29:28 036                                                                       
2020-11-12 06:33:47 037                                                                       
2020-11-17 09:21:26 038                                                                       
2020-11-24 13:47:28 039        2                                 2                            
2020-11-30 07:44:02 040        3                                 1                            
2020-12-07 20:20:00 041        1                                                              
2020-12-13 18:26:56 042                                                                       
2020-12-20 00:33:11 043        2                                 1                            
2020-12-25 22:27:11 044        4                                 2                            
2021-01-01 07:57:34 045        4                                 3                            
2021-01-07 18:08:33 046        6                                                              
2021-01-15 02:41:00 047        3                                 1                            
2021-01-22 20:25:40 048        6                                 5                            
2021-01-28 10:53:04 049        5                                 5                            
2021-02-03 14:32:54 050        6                                 3                            
2021-02-09 03:20:45 051        4                                 4                            
2021-02-16 14:14:47 052        4                                 7                            
2021-02-22 01:22:20 053        10                                2                            
2021-02-28 10:29:30 054        6                                 1                            
2021-03-06 18:23:14 055        5                                 6                            
2021-03-12 10:16:29 056        7                                 4                            
2021-03-17 08:30:15 057        7                                 5                            
2021-03-23 06:08:46 058        14                                2                            
2021-03-29 22:39:10 059        2                                 9                            
2021-04-05 05:01:38 060        15                                5                            
2021-04-10 21:09:07 061        8                                 6                            
2021-04-16 23:20:59 062        10                                9                            
2021-04-22 07:50:06 063        13                                7                            
2021-04-28 23:02:38 064        13                                5                            
2021-05-04 04:45:55 065        11                                5                            
2021-05-09 14:11:18 066        6                                 6                            
2021-05-16 14:55:41 067        13                                4                            
2021-05-23 15:02:08 068        8                                 6                            
2021-05-26 06:43:43 069        20                                7                            
2021-05-29 18:38:55 070        16                                10                           
2021-06-03 15:46:15 071        23                                9                            
2021-06-11 23:13:21 072        14                                9                            
2021-06-15 11:54:58 073        13                                12                           
2021-06-22 00:30:34 074        20                                13                           
2021-06-27 11:56:43 075        27                                14                           
2021-07-02 15:06:05 076        31                                31                           
2021-07-08 20:49:12 077        78                                58                           
2021-07-14 07:30:06 078        317                               233                          
2021-07-18 14:21:26 079        2218                              1267                         
2021-07-20 23:37:16 080        6195                              1454                         
2021-07-23 21:00:51 081        7395                              1716                         
2021-07-27 02:27:09 082        7330                              1644                         
2021-07-29 02:04:50 083        5677                              1171                         
2021-07-30 14:32:48 084        3553                              662                          
2021-08-03 02:15:23 085        1629                              318                          
2021-08-05 08:06:31 086        659                               96                           
2021-08-08 05:34:18 087        190

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pwhidden
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USA
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Re: Work Available
Thanks Kevin,

Good signs that we are working down the lagging work units:

Generation 37 and 38 complete. Added 1 new generation.

8/6/21 data: Gen 37 to 78 had 1332 completed in the last day.
8/10/21 data: Gen 39 to 79 had 1779 completed in the last day.
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Dayle Diamond
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Re: Work Available
Maybe for the next month's update, we can push a notification to ARP contributors to set their queues to a quarter of the day minimum plus a quarter of the day maximum?

We can improve upon the four day pace without adding additional processing power.
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