Here's the press release from October with all the permanent partners listed.
http://www.theacc.com/genrel/100312aae.html
The ACC will continue to play an 18-game conference schedule with the addition of Notre Dame. The scheduling model will be based on a two-partner format.
Each year, teams will play every league opponent at least once with the two partners playing home and away annually. In addition to the four annual games against partners, the remaining 14 conference games will feature home and away games with two rotating opponents and five home-only games and five road-only games.
The two-primary-partner format preserves competitive balance and builds upon traditional rivalries while providing the opportunity to create new ones.
Boston College - Notre Dame and Syracuse
Clemson - Florida State and Georgia Tech
Duke - North Carolina and Wake Forest
Florida State - Clemson and Miami
Georgia Tech - Clemson and Notre Dame
Maryland - Pitt and Virginia
Miami - Florida State and Virginia Tech
North Carolina - Duke and NC State
NC State - North Carolina and Wake Forest
Notre Dame - Boston College and Georgia Tech
Pitt - Maryland and Syracuse
Syracuse - Boston College and Pitt
Virginia - Maryland and Virginia Tech
Virginia Tech - Miami and Virginia
Wake Forest - Duke and NC State
Following the regular season, the ACC Tournament format will continue to feature all league members. The Tournament will begin with three games on Wednesday, followed by four games on Thursday and Friday, two semifinals on Saturday and the championship game on Sunday. The top four seeds will continue to receive byes into Friday's quarterfinal round.
In the annual ACC/B1G Challenge, the decision was made to include the 12 teams with the best RPI from the previous year.