-To add backfill slots to your execute node that is using a single partitionable slot. Use the following config.
+{subsubsection: Audience}
+If you have a HTCondor pool that is configured to use Partitionable slots and you wish to run Folding@home as backfill jobs on those machines using the recipe
+{wiki: HowToConfigureFoldingAtHome here}
+
+{subsubsection: Strategy}
+We will set up a set of backfill static slots that share the resources of the primary partitionable slot, but use those resources only then primary slot is idle or partially idle.
+
+We then will use HTCondor's "fetch work" configuration to run a script for each backfill slot that periodically generates a job classad for Folding@Home work. Those jobs will have a retirement time of 0 so that they can be pre-empted when the primary slot wants to use the resources. These jobs will all be run by a dedicated local user named *backfill* and will run at a fixed directory for each slot. This allows the Folding@home software to save progress periodically and then resume that work later if it is preempted.
+
+
+The configuration fragment below can be customized by modifying =BackfillCpusPerSlot=, =BackfillMemoryPerSlot= =FAH_Owner=, =FAH_HOME= and =FAH_Executable= configuration variables near the top of the file.
-This config adds a set of static slots, that will only run Folding@Home via workfetch, and only run jobs when the partitionable slot is not using the resources.
{snip: pslot_backfill_folding_at_home.config}
# Configuration to add Static backfill slots running Folding@Home to a HTCondor execute
