Changes between Initial Version and Version 1 of MultiUserPriority

Timestamp:

Jan 10, 2013, 12:25:52 PM (12 years ago)

Author:

davea

Comment:

--

MultiUserPriority

@@ +1 @@
+= Prioritizing jobs in a multi-user project =
+
+By default, BOINC processes jobs in a roughly first-in, first-out order.
+If your project has multiple job submitters,
+this is probably not what you want:
+users who submits lots of jobs would get more than their share of the project's capacity.
+BOINC has a set of mechanisms that address this issue.
+To use them, do the following:
+
+== Set the desired quotas for job submitters ==
+
+Create a user account for each job submitter,
+and [MultiUser set their quotas].
+
+== Modify your job submission scripts or work generators ==
+
+Wherever you create jobs - e.g. [RemoteJobs web scripts for remote job submission]
+and [WorkGeneration work generators] - you must set the priority of the jobs
+as follows:
+
+ * Compute the total FLOP estimate (workunit.rsc_fpops_est)
+   of the set of jobs.
+ * Run '''adjust_user_priority''' to update and return the priority
+   of the submitter:
+{{{
+adjust_user_priority --user userID --flops X --app appname
+}}}
+   For example, in PHP:
+{{{
+$cmd = "cd ../../bin; ./adjust_user_priority --user $user->id --flops $flops --app $app->name";
+$x = system($cmd);
+if (!is_numeric($x) || (double)$x == 0) {
+   ... handle error
+}
+$priority = (double)$x;
+}}}
+
+ * Set job priorities.  For example, use the '''--priority''' option to '''create_work'''.
+   Also, if you're creating a batch, set batch.logical_end_time to the priority
+   (this is not used for scheduling, but is used in displaying batches on the web).
+
+== Use the right feeder options ==
+
+Run the feeder with the '''--priority_asc''' option.
+
+Note: currently this can't be used in combination with the --all_apps option,
+or with homogeneous redundancy.