Zoidberg is part of the HPC Cluster in name and location only. It's treated as mostly separate, and can be used outside of Slurm. Zoidberg is by far the most powerful HPC node as well, potentially the most powerful machine in the entire CSL.
SuperMicro 1U 4 GPU SuperServer
Intel(R) Xeon(R) E5-2630 v2 @ 2.60GHz
4x NVIDIA Tesla K80
2x 250GB RAID 1
Zoidberg currently has a workstation IP and is plugged into the workstation VLAN by means of a long ethernet cable because the networking to the HPC cluster is broken ("it's fine if they can't DHCP" no it friggin isn't "well if they don't have static IPs then they're mis-managed" seriously?? also static IPs didn't seem to work anyway).