The HPS Simulations web site is temporarily offline due to technical issues. We hope to have them resolved soon.
In the meantime, for any problems or questions, please email the HPS Support Center at:

We sincerely apologize for the inconvenience this outage is causing, and appreciate your patience and support while we get it worked out.

Update 20 Feb: We are still rebuilding the server, which has suffered a sequence of multiple hardware failures. Due to the extensive nature of the rebuilding process, we do not have an estimated time for completion. And again, thank you for your patience as we get back online.