Performance Architect, CPU Cluster
About the role
Tenstorrent is looking for a CPU Cluster Performance Architect to help shape the performance and scalability of our next‑generation CPUs. You’ll focus on how multiple CPU cores work together as a cluster — from cache hierarchies and coherent interconnects, to memory bandwidth and overall system behavior. This is a hands‑on architecture role for someone who enjoys using performance models and simulation to understand bottlenecks, explore tradeoffs, and influence decisions early in the design process. You’ll work closely with CPU architects, RTL designers, software and compiler teams, and system architects to understand workload behavior and turn performance insights into architectural improvements. If you enjoy looking at the entire cluster and how performance scales across cores, memory systems, and chiplets, this is an opportunity to have a significant impact. This role is remote, based out of North America. We welcome candidates at various experience levels for this role. During the interview process, candidates will be assessed for the appropriate level, and offers will align with that level, which may differ from the one in this posting.
Responsibilities
- Analyze and optimize CPU cluster performance, including cache hierarchies, interconnects, coherence, and memory access behavior.
- Build and use performance models and simulation environments such as Gem5 or equivalent to evaluate architectural concepts and identify performance opportunities.
- Study real workloads to understand bottlenecks related to cache misses, coherence traffic, memory bandwidth, latency, contention, and core‑to‑core communication.
- Lead architectural tradeoff studies across performance, scalability, bandwidth, latency, power, and implementation complexity.