{subsubsection: Audience} -If you have a HTCondor pool that is *not* configured to use Partitionable slots and you wish to run Folding@home as backfill jobs on those slots. +If you have a HTCondor pool that is *not* configured to use Partitionable slots and you wish to run Folding@home as backfill jobs on those slots using the recipe {wiki : HowToConfigureFoldingAtHome How to Configure Folding at Home} {subsubsection: Strategy} We will use HTCondor's "fetch work" configuration to run a script on each execute machine 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 by jobs sent from a Schedd. These jobs will all be run by a dedicated user named *backfill*, and the Startd will give negative RANK jobs from the *backfill* user.