ET Workshop Fall 2012

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Fall Einstein Toolkit Workshop 2012

This workshop is intended for developers and users that are already familiar with the toolkit. The main goals revolve all around the future development, improvement and extension of the toolkit, so don't expect long talks or presentations, but heavy discussions and long hacking sessions.

Location and Time

The workshop will be organized at RIT, with more details to be added here later.

The time is noonish on Monday, the Oct 22nd, to noonish on Friday, the Oct 26th. We have booked the following rooms for the Workshop:

    Date 	        Start 	        End       	Room 	
10/22/2012   Mon 	12:00 PM 	6:00 PM 	Campus center 2650 (	
10/23/2012   Tue 	9:00 AM 	6:00 PM 	Campus center 2650 	
10/24/2012   Wed 	7:30 AM 	6:00 PM 	CSD Student Development Center (Building 55) room 1300 	
10/25/2012   Thu 	7:30 AM 	5:00 PM 	CSD Student Development Center (Building 55) room 1310 	
10/26/2012   Fri 	8:00 AM 	12:00 PM 	Campus center 2650 	

Note change of room for this Wednesday afternoon:

    Date 	        Start 	        End       	Room 	
10/24/2012   Wed 	2:30 AM 	6:30 PM         78-2130

A campus map may be found at Please visit the RIT website at for additional information on the campus. In case you get completely lost please stop by at the CCRG site (Building 74) or stop by the postdoc office on Building 78 room 1025. We can guide you all to the workshop rooms. Any problem, please call Bruno (585 451-6085) or Josh (585 455-9280).

There are several options for dining available in the Student Alumni Union (Building 4). Other options are the Global Village Cantina and Crossroads located in the Global Village and the Ctrl Alt Deli located in Golisano Hall (Building 70). Hours of operation are posted on the RIT website


RIT is approximately five miles from Greater Rochester International Airport (ROC).

By Air The Greater Rochester International Airport (ROC) is located at 1200 Brooks Ave., Rochester, NY, approximately four miles southwest of the city of Rochester. Rochester is serviced by Air Canada, AirTran, American Eagle/American Airlines, Delta, Jet Blue, United and US Airways. Their website is Ground transportation options from the airport include shuttle service, public buses, taxi, and rental cars.

The workshop hotel offers complimentary shuttle service to and from the airport. It is advised to book it in advance to avoid longer wait times.

Taxicabs are available through Advance Airport Taxi Service (585-235-3333). The taxi booth is located in front of the main terminal, center entranceway, lower level; rates are US$10.00 minimum to and from the airport, with US$2.50 for each additional passenger and US$3.00 per mile.

By Train Amtrak provides service to the city of Rochester. The train station is located at 320 Central Avenue, Rochester, NY 14605 (800-872-7245). Information on schedules and fares can be found at

By Bus: Bus service is offered by New York Trailways and Greyhound Bus Line. Both bus companies share a terminal at Midtown Plaza, which is located in downtown Rochester at 168 Cumberland St., Rochester, NY (585-232-5121). Information on schedules and fares can be found at and

By Car From the Airport: Turn right onto Brooks Avenue, then right onto Interstate 390 South. From 390, take the Scottsville Road exit and turn right. Drive for approximately three miles, then turn left onto Jefferson Road. Travel east for approximately one-half mile to the campus.

From Interstate 90: Take Exit 46 and proceed north on Interstate 390 to Exit 13 (Hylan Drive). Turn left on Hylan and continue north to Jefferson Road. Turn left on Jefferson and proceed west for approximately two miles to the campus.

Car Rental: There are five car rental agencies with offices at the Greater Rochester International Airport. For reservations with AVIS please dial toll-free 800-831-2847 or visit their website at For reservations with Hertz please dial toll-free 800-654-3131 or visit their website at For reservations with Budget please dial toll-free 800-527-0700 or visit their website at For reservations with National please call toll-free 877-222-9058 or visit their website at For reservations with Enterprise please call toll-free 800-325-8007 or visit their website at

Local Transportation

Taxi Service: Sentry Taxicab (585-235-7777; 800-taxicab (toll-free)) provides service throughout Monroe County 24 hours a day. This company provides taxicab service in both cars and vans which hold five to seven passengers.

Bus Service within Rochester: The airport and the city of Rochester are serviced by the Rochester Transit Service (RTS). Bus schedules are available at the Visitors Information Booth at the airport, can be obtained by calling RTS directly at 585-288-1700, or can be viewed by visiting the RTS website at The bus shelter at the airport is located on lower level roadway, east end of airport. RIT is also a stop on Route 24 of the RTS bus service. The current bus fare rate is US$1.


The conference hotel will be the Radisson Hotel Rochester Airport, which is located at the corner of RIT's campus. A group rate will be available ($94 single, $104 double, not including taxes), with the code being "einsteintoolkit". Using the RIT rate includes breakfast which is otherwise not included (and costs about $10 per day). There is a shuttle form the airport to/from the hotel, and a shuttle to campus, so cars will not be necessary.

Proposed Topics

Even with loose discussions and coding sessions some topic needs to be set to get something done. Some proposed things to work on are


  • Closed tickets: 35

Included in release:

  • MHD Testsuites for GRHydro code
  • Testsuites for EinsteinExact (analogous to testsuites for Exact)
  • inclusion of Trigger

Not (yet) included in release:

  • New scheduling in Cactus
  • Work on solver for cosmology (periodic boundaries, true AMR)
  • A-evolution for magnetic fields
  • Work on Con2Prim problems with MHD
  • New load balancing scheme in Carpet
  • Tested Google hangouts, but only with mixed results

MHD paper:

  • Bondi-infall on static Kerr-Schild
  • Working on problems with Bondi-infall with evolved spacetime

Discussion notes