Novel Composable and Scaleout Architectures Using Compute Express Link

Compute Express Link (CXL) is an open industry standard interconnect offering caching and memory semantics on top of PCI-Express. In addition to providing high-bandwidth and low-latency connectivity between host processor and accelerators, smart network interface card, and memory expansion devices, it also enables resource pooling across multiple systems for scalable, power-efficient, and cost-effective computing. This article delves into a novel composable and scaleout architecture to enable large-scale systems at rack level and beyond with pooled and shared heterogeneous memory and heterogenous compute resources using CXL interconnect.