Panmnesia Announces Sample Availability of PCIe 6.0/CXL 3.2 Fabric Switch, The Industry’s First Fabric Switch Silicon Fully Implementing the CXL 3.2 Standard with Port-Based Routing (PBR) Support
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Panmnesia Inc. (Panmnesia), a pioneering company in link solution for AI infrastructure, announced the sample availability of its PCIe 6.0/CXL 3.2 Fabric Switch, the industry’s first CXL switch silicon to support port-based routing (PBR). The company is currently in the process of providing switch silicon samples to early access partners.
Panmnesia’s switch is a hybrid solution that supports both PCIe Gen 6 and CXL 3.2 protocols on a single chip, while maintaining full backward compatibility with all previous PCIe and CXL generations. Fully implemented in strict accordance with the CXL 3.2/PCIe 6.0 specifications, it ensures complete standards compliance and seamless interoperability across all defined subprotocols. The switch can also operate in PBR mode and hierarchy-based routing (HBR) mode.
With support for these flexible routing options and a full-stack optimized architecture based on Panmnesia’s proprietary PCIe/CXL controller, the switch enables customers to build a truly composable architecture that reduces CAPEX and OPEX while delivering high performance for large-scale workloads that require multiple devices to operate seamlessly together — including AI applications such as Deep Learning Recommendation Models (DLRM), Large Language Models (LLMs), and Retrieval-Augmented Generation (RAG), as well as HPC workloads like Message Passing Interface (MPI)-based scientific simulations.
“Today, we are excited to unveil our PCIe 6.0/CXL 3.2 Fabric Switch silicon sample,” said Dr. Myoungsoo Jung, CEO of Panmnesia. “We believe that this will be a meaningful milestone in our journey to redefine end-to-end AI infrastructure with our industry partners.”
Panmnesia’s PCIe/CXL Fabric Switch – Key Highlights
Even as demand for large-scale AI models remains high and continues to grow, companies are deploying massive numbers of accelerators in parallel to deliver higher-performance AI services. In this environment, interconnect technologies that can connect more devices and enable efficient communication among them are becoming more critical. Panmnesia’s Fabric Switch meets this demand by offering the following differentiated features, allowing numerous devices in data centers and HPC environments to operate together as if they were a single, large-scale accelerator:
- Unified Fabric without Manual Setup or Static Hierarchy:
Wherever they’re plugged in, Panmnesia’s Fabric Switches — which support port-based routing — form a self-organizing, topology-agnostic fabric that makes AI clusters to operate as a single unified accelerator.
- Scalable Expansion without Relying on Slow Networks:
Panmnesia’s Switches can interconnect thousands of devices across multiple racks without incurring long network latency, thanks to support for cascading which enables multi-switch interconnection.
- Accelerated Communication among Devices:
Supporting PCIe Gen6 data rates (64 GT/s), the Fabric Switches accelerate bulk data transfers. They also support all CXL subprotocols — CXL.cache, CXL.mem, and CXL.io — ensuring cache coherency across devices, thereby eliminating unnecessary data copies.
- Ultra-Low-Latency Data Access within Clusters:
Panmnesia’s Fabric Switches reduce overall data-access latency within clusters by minimizing hops through a high-fan-out architecture and lowering internal processing latency via the integration of Panmnesia’s CXL controller, featuring double-digit nanosecond latency.
Additional Panmnesia Products: CXL/PCIe Controllers and Custom Silicon Solutions
The same low-latency controller technology is also available as standalone CXL/PCIe controllers — delivering industry-leading double-digit-nanosecond round-trip latency. The CXL 3.2 / PCIe 6.0 controllers are silicon-proven, and customers can request variants designed for memory, accelerator, and CPU applications.
In addition to standard controller products, Panmnesia offers a custom silicon solution that enables customers to realize application-specific chips based on Panmnesia’s proprietary controller and design IP. Through this offering, customers can obtain fully customized chips optimized for their specific workloads and system architectures.
Availability
Panmnesia’s PCIe 6.0/CXL 3.2 Fabric Switch Silicon is out now and early access partners can request samples and pilot systems. Panmnesia’s PCIe 6.0/CXL 3.2 Controllers are silicon-proven. For more information about samples, products, and partnership, please contact through [email protected].
