Hi,

I am running several projects via my BOINC account manager. I have two that I consider the most important, and some others which I've set up to download only when there is a lack of work from the other projects.

My question is this: Is there a way to set up BOINC so that I only download additional work for specific projects? For example, if there is a shortage of work for GPUGrid, PrimeGrid will get work. However, I don't want this project to get any more work than the tasks it is currently running. I would ideally like to have GPUGrid running with a queue of work, and Primegrid there only as a short-term backup.

Is this at all possible? Thank you.

2/5/2017 11:03:01 AM | GPUGRID | Requesting new tasks for NVIDIA GPU
2/5/2017 11:03:02 AM | GPUGRID | Scheduler request completed: got 0 new tasks
2/5/2017 11:03:02 AM | GPUGRID | No tasks sent
2/5/2017 11:03:02 AM | GPUGRID | Project has no tasks available
2/5/2017 11:03:12 AM |  | Resuming GPU computation
2/5/2017 11:03:28 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:10:25 AM | World Community Grid | Started upload of FAH2_000955_zinc01827161_000002_0015_015_0_r1774778434_7
2/5/2017 11:10:25 AM | World Community Grid | Started upload of FAH2_000955_zinc01827161_000002_0015_015_0_r1774778434_17
2/5/2017 11:10:28 AM | World Community Grid | Sending scheduler request: To send trickle-up message.
2/5/2017 11:10:28 AM | World Community Grid | Not requesting tasks: don't need (CPU: job cache full; NVIDIA GPU: job cache full)
2/5/2017 11:10:29 AM | World Community Grid | Finished upload of FAH2_000955_zinc01827161_000002_0015_015_0_r1774778434_7
2/5/2017 11:10:29 AM | World Community Grid | Finished upload of FAH2_000955_zinc01827161_000002_0015_015_0_r1774778434_17
2/5/2017 11:10:30 AM | World Community Grid | Scheduler request completed
2/5/2017 11:13:50 AM |  | Resuming GPU computation
2/5/2017 11:13:57 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:14:31 AM | World Community Grid | Computation for task MCM1_0130125_2692_0 finished
2/5/2017 11:14:31 AM | World Community Grid | Starting task MCM1_0130125_2695_1
2/5/2017 11:14:33 AM | World Community Grid | Started upload of MCM1_0130125_2692_0_r1858493874_0
2/5/2017 11:14:34 AM | World Community Grid | Finished upload of MCM1_0130125_2692_0_r1858493874_0
2/5/2017 11:26:37 AM |  | Resuming GPU computation
2/5/2017 11:31:12 AM | PrimeGrid | Computation for task pps_sr2sieve_98533487_0 finished
2/5/2017 11:31:14 AM | PrimeGrid | Started upload of pps_sr2sieve_98533487_0_0
2/5/2017 11:31:15 AM | PrimeGrid | Finished upload of pps_sr2sieve_98533487_0_0
2/5/2017 11:31:16 AM | PrimeGrid | Sending scheduler request: To report completed tasks.
2/5/2017 11:31:16 AM | PrimeGrid | Reporting 1 completed tasks
2/5/2017 11:31:16 AM | PrimeGrid | Requesting new tasks for NVIDIA GPU
2/5/2017 11:31:17 AM | PrimeGrid | Scheduler request completed: got 1 new tasks
2/5/2017 11:31:20 AM | PrimeGrid | Starting task pps_sr2sieve_98535125_1
2/5/2017 11:34:55 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:35:20 AM |  | Resuming GPU computation
2/5/2017 11:36:01 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:41:50 AM |  | Resuming GPU computation
2/5/2017 11:43:23 AM | World Community Grid | Computation for task MCM1_0130124_9399_0 finished
2/5/2017 11:43:23 AM | World Community Grid | Starting task MCM1_0130125_1694_0
2/5/2017 11:43:25 AM | World Community Grid | Started upload of MCM1_0130124_9399_0_r2029710950_0
2/5/2017 11:43:26 AM | World Community Grid | Finished upload of MCM1_0130124_9399_0_r2029710950_0
2/5/2017 11:45:28 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:45:57 AM |  | Resuming GPU computation
2/5/2017 11:50:58 AM |  | Suspending GPU computation - computer is in use
2/5/2017 11:52:07 AM | World Community Grid | General prefs: from World Community Grid (last modified 22-Dec-2016 12:30:19)
2/5/2017 11:52:07 AM | World Community Grid | Host location: none
2/5/2017 11:52:07 AM | World Community Grid | General prefs: using your defaults
2/5/2017 11:52:07 AM |  | Reading preferences override file
2/5/2017 11:52:07 AM |  | Preferences:
2/5/2017 11:52:07 AM |  | max memory usage when active: 16364.18MB
2/5/2017 11:52:07 AM |  | max memory usage when idle: 29455.53MB
2/5/2017 11:52:07 AM |  | max disk usage: 56.62GB
2/5/2017 11:52:07 AM |  | max CPUs used: 7
2/5/2017 11:52:07 AM |  | don't use GPU while active
2/5/2017 11:52:07 AM |  | suspend work if non-BOINC CPU load exceeds 25%
2/5/2017 11:52:07 AM |  | (to change preferences, visit a project web site or select Preferences in the Manager)

I'm not sure if you have done this already but if you set a project's resource share to zero it becomes a "backup" project. BOINC fetches work from backup projects only when it has run out of work and can't get anything from primary projects.

I've done that back when Milkyway had problems sending out enough work. I set E@H to 0% and it only downloaded 2 tasks to run 2x at once if there was no MW tasks to crunch.

If you want some other ratio of work try to adjust the % for each project.