Gurpreet Edited

Gurpreet Singh Kalsi

Principal Engineer,
Intel

About the Speaker

Gurpreet Singh Kalsi is a Principal Engineer in Intel’s Datacenter Group, specializing in large-scale system architecture, AI infrastructure, and hardware-software co-design. Over two decades at Intel, he has contributed to more than 10 revenue-generating silicon programs and led innovations spanning AI accelerators, GPU architectures, memory systems, and high-performance networking. He has held technical leadership roles across Intel and U.S. Government research programs, enabling scalable system connectivity through silicon photonics and co-packaged optics technologies. Gurpreet holds over 50 issued or submitted patents, has published more than 20 papers in leading IEEE venues, and is the lead author of BiFrost, a composable interconnect architecture for scalable AI systems.

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BiFrost: A Composable, Resilient Interconnect Network Architecture for Scalable AI Systems

Overview

AI scaling is increasingly limited by communication, memory, and system complexity. BiFrost is a composable interconnect architecture that unifies communication across chiplets, packages, and large-scale systems. A scalable FatTree fabric, shared address space, and packet-address compute engine enable software-transparent resource composition, while adaptive routing and dynamic remapping provide resilience under failures. BiFrost demonstrates how a unified fabric can simplify AI system design, improve scalability and programmability, and enable the next generation of composable AI infrastructure.

Key Points

  • Unified Composable Fabric: BiFrost introduces a single interconnect architecture that spans chiplets, packages, and large-scale systems, enabling compute, memory, and accelerators to be composed into a unified resource pool.
  • Software-Transparent Shared Memory: A novel Packet Address Compute (BF-PAC) engine provides a shared address space across distributed resources, preserving software compatibility while enabling flexible system composition.
  • Built-In Resilience at Scale: BiFrost integrates adaptive routing and dynamic memory remapping, allowing systems to continue operating efficiently in the presence of network and memory failures.