The PPS (Sieve) will be pausing soon. When the current buffer empties and all outstanding work has been completed and validated, we'll be switching applications from ppsieve to tpsieve. This will allow for combined sieving of both +1 and -1 forms. For more information, please see this <b><a href="http://www.primegrid.com/forum_thread.php?id=2799" rel="nofollow">thread</a></b>.

We hope to resume in less than a week.