There is no centrally booked accommodation.
There are two University of Edinburgh-operated hotels on the campus: The Scott and The Scholar, which conference attendees may wish to book. Code EVENT will give a discount of 15%. (The code has limited availability.)
The University also operates KM Hotel and Apartments. These are 20-minute walk from the venue, closer to the city centre. Code EVENT will give a discount of 15% on these too!
Other accommodation in Edinburgh may be booked using your favourite booking sites.