Hyak is part of the University of Washington's cyberinfrastructure plan to support world-class research in every department.
Hyak is an ecosystem of high-performance compute (HPC) clusters and supporting infrastructure (e.g., data management, computational training, scientific consulting).
Acknowleding our Pacific Northwest heritage, Hyak means "fast" in Chinook jargon. Counting 1, 2, and 3 translates to "ikt", "mox", and "klone" in this local trading language.
The numbers are cluster names corresponding to the generation of Hyak cluster deployed. We are currently on the 3rd generation cluster for Hyak.

Component | Details |
---|
Cluster | ikt |
Service | October 2010 — June 2020 |
OS | CentOS 6 |
Compute | 8,008 CPU cores [Broadwell] |
Accelerators | 47 GPU cards [Tesla M2075] |
Interconnect | 10 Gbps [Myri-10G Myrinet] |
Topology | Non-blocking 1-layer fat tree |
Storage | 1.0 PB GPFS |
Namesake | Ikt = 1 in Chinook jargon. 1st Hyak cluster (now retired). |

Component | Details |
---|
Cluster | mox |
Service | June 2018 — January 2025 |
OS | CentOS 7 |
Compute | 18,376 CPU cores [Cascade Lake] |
Accelerators | 112 GPU cards [Turing] 20 Xeon PHI |
Interconnect | 100 Gbps [OPA100 Omnipath] |
Topology | Non-blocking 1-layer fat tree |
Storage | 1.0 PB GPFS |
Namesake | Mox = 2 in Chinook jargon. 2nd Hyak cluster. Still active but frozen. |

Component | Details |
---|
Cluster | klone |
Service | January 2021 — Present |
OS | Rocky 8 |
Compute | 44,184 CPU cores [AMD Genoa, Intel Cascade Lake, Intel Ice Lake] |
Accelerators | 954 GPU cards [Turing, Ampere, Hopper] |
Interconnect | 100 Gbps [HDR100 Infiniband] |
Topology | 3:1 blocking 2-layer fat tree |
Storage | 2.7 PB GPFS |
Namesake | Klone = 3 in Chinook jargon. Current active Hyak cluster. |