The bonus system is being tested on uniprocessor clients

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As you probably know, the SMP2 and bigadv sections of the project have been subject to a quick return bonus, where points are awarded on an exponentially increasing scale for fast returns of units.

The system is currently being tested on a limited number of uniprocessor projects with a view to potentially rolling it out to all uniprocessor projects too. Currently the only uniprocessor projects subject to the QRB are projects 10436 and 10437.

We must stress that this remains a test: with a project the size of Folding@home many unplanned complications are possible. The system may change so as to best reflect the scientific needs of the project.

Source: Vijay Pande's blog