Astera Labs First to Demonstrate End-to-End PCIe over Optics for GPU Clusters Across the Data Center
June 11 2024 - 8:00AM
Business Wire
Company extends its PCIe connectivity
leadership to increase GPU cluster scale and utilization in
disaggregated AI and cloud infrastructure
Astera Labs (Nasdaq: ALAB), a global leader in
semiconductor-based connectivity solutions for AI and cloud
infrastructure, today unveiled the industry’s first demonstration
of end-to-end PCIe® optical connectivity to provide unprecedented
reach for larger, disaggregated GPU clusters. The company’s
breakthrough technology for PCIe over optics expands its widely
deployed, field-tested Aries family of Smart DSP Retimers and Smart
Cable Modules™ (SCMs) for Active Electrical Cables (AECs) to
deliver robust PCIe and CXL® connectivity in chip-to-chip,
box-to-box, rack-to-rack, and now row-to-row topologies throughout
the data center.
Casey Morrison, Chief Product Officer, Astera Labs, said,
“GPU clusters are growing in size to handle the expanding
complexities of AI workloads within disaggregated cloud
infrastructure. We’re proud to broaden our PCIe leadership once
again by demonstrating robust PCIe links over optical interconnects
between GPUs, CPUs, CXL memory devices, and other PCIe endpoints.
This breakthrough expands our Intelligent Connectivity Platform to
allow customers to seamlessly scale and extend high bandwidth, low
latency PCIe interconnects over optics including Active Optical
Cables in addition to copper-based AECs.”
Large AI models benefit from tightly clustering more GPUs over a
backend mesh network often using PCIe interfaces that are natively
found on GPUs. Larger GPU clusters must be distributed beyond a
single rack to meet power delivery and cooling requirements. PCIe
optical interconnects are essential to scale PCIe based GPU
clusters to multiple racks and rows, improve AI model performance,
and increase GPU utilization.
Alan Weckel, Co-Founder and Technology Analyst, The 650
Group, observed, “PCIe optical technology is a critical
development that will support hyperscalers to address the
high-speed connectivity demands of their AI and cloud
infrastructure, which are rapidly increasing in both scale and
complexity. As a leader in PCIe, Astera Labs’ end-to-end PCIe
connectivity over optical fiber represents a significant
breakthrough for the industry to deploy high bandwidth PCIe in AI
clusters at data center scale.”
Astera Labs’ new technology for PCIe over optics operates with
end-to-end PCIe link connectivity in compliance with current PCIe
specifications and is flexible to address future standards
requirements through software-enabled configurability. The company
is collaborating with leading optical cable suppliers to enable a
wide variety of industry standard form factors.
Nathan Brookwood, Research Fellow, Insight 64, noted,
“Optical interconnects are an important evolution for PCIe
architecture that will have a significant impact on a wide variety
of markets and applications that leverage the high bandwidth, low
latency connectivity standard. Astera Labs’ demonstration of its
new PCIe over optics solution is an impressive milestone that will
enable the industry to unlock even larger, more powerful AI
clusters in hyperscale and cloud data centers.”
Astera Labs’ COSMOS software suite has been enhanced to provide
link, fleet, and RAS management features over optical links,
delivering deep insights into every lane and link inside a cluster
to facilitate maximum uptime and optimal infrastructure
utilization. Customers already using Astera Labs’ Intelligent
Connectivity Platform will be able to seamlessly and transparently
enable optical interconnects.
Resources:
- First Demo of End-to-End PCIe Over Optics for GPU Clusters
Across the Data Center [Video]
- Extending Our Connectivity Leadership: Industry’s First
End-to-End PCIe over Optics Demo [Blog]
About Astera Labs
Astera Labs is a global leader in purpose-built connectivity
solutions that unlock the full potential of AI and cloud
infrastructure. Our Intelligent Connectivity Platform integrates
PCIe®, CXL®, and Ethernet semiconductor-based solutions and the
COSMOS software suite of system management and optimization tools
to deliver a software-defined architecture that is both scalable
and customizable. Inspired by trusted relationships with
hyperscalers and the data center ecosystem, we are an innovation
leader delivering products that are flexible and interoperable.
Discover how we are transforming modern data-driven applications at
www.asteralabs.com.
© Astera Labs, Inc. Astera Labs, and its stylized logo, are
trademarks of Astera Labs, Inc. or its affiliates. Other names and
brands may be claimed as the property of others.
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Joe Balich Joe.balich@asteralabs.com
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