The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Workshop: 2nd International Workshop on RESource DISaggregation in High Performance Computing (RESDIS)
Authors: Myoungsoo Jung (Korea Advanced Institute of Science and Technology (KAIST))
Abstract: Compute express link (CXL) has recently attracted significant attention thanks to its excellent hardware heterogeneity management and resource disaggregation capabilities. Even though there is yet no commercially available product or platform integrating CXL 2.0/3.0 into memory pooling, it is expected to make memory resources practically and efficiently disaggregated much better than ever before.
In this lecture, we will argue why existing computing and memory resources require a new interface for cache coherency and demonstrate how CXL can put the different types of resources into a disaggregated pool. As a use case scenario, this lecture will show two real system examples, building a CXL 2.0-based end-to-end system that directly connects a host processor complex and remote memory resources over CXL's memory protocol and a CXL-integrated storage expansion system prototype. At the end of the lecture, we introduce a set of hardware prototypes designed to support the future CXL system (CXL 3.0) as our ongoing project.