Workstations are located in various rooms, among those BA2200, BA2210, BA2220, BA2240, BA3175, BA3185, BA3195, BA3200. Typical workstation names are
squidxx.teach.cs.toronto.edu where xx is 01 to 07
b2200-xx.teach.cs.toronto.edu where xx is 01 to 18
b2210-xx.teach.cs.toronto.edu where xx is 01 to 50
b2220-xx.teach.cs.toronto.edu where xx is 01 to 50
b2240-xx.teach.cs.toronto.edu where xx is 01 to 14
b3175-xx.teach.cs.toronto.edu where xx is 01 to 24
b3185-xx.teach.cs.toronto.edu where xx is 01 to 24
b3195-xx.teach.cs.toronto.edu where xx is 01 to 24

You need the IP addresses, to run MPI processes.

Regarding uniformity, it is a good idea to use similar type workstations.
1. Systems in 3185 3195 2200 2240: about 100 systems with Intel(R) Xeon(R) W-1390P @ 3.50GHz (8 cores) and 64GiB memory.
2. Systems in 2210 2220 3200: about 100 systems with AMD Ryzen 5 PRO 8600GE w/ Radeon 760M Graphics (6 cores) and 30GiB of memory.