… Approach: Expressive Memory We design Expressive Memory (XMem), a new rich crosslayer
interface that enables explicit expression and availability of key program semantics. XMem …

… ● Atoms describe data which is semantically similar ● Programs explicitly specify atoms
● Atoms are immutable ● Atoms can be mapped to memory or deactivated ● Each virtual …

… unifying cross-layer abstractions to bridge the semantic gap … to communicate key program
semantics from the application to … , we present Expressive Memory (XMem), a rich cross-layer …

… The cross-layer abstractions are narrow, in terms of the … Our recent work, called Expressive
Memory (XMem),8 shows … and requirements conveyed by a rich, expressive interface. The …

… with easy-to-use software library abstractions. (2) Metadata … techniques for QoS; and
lightweight techniques for memory … a richer set of cross-layer optimizations than prior work [164]. …

… technologies, or memory chips to enable high memory … to become richer and more expressive,
and to include rich and … , we describe and tac4le relevant cross-layer research, design, …

… An opportunity to explore is whether richer semantics of memory access patterns could also
… ], which are cross-layer programming abstractions for conveying memory semantics. The key …

… and its interface to become richer and more expressive, and to include rich and accurate …
Case for Richer Cross-layer Abstractions: Bridging the Semantic Gap with Expressive Memory…

… of pointer-chasing operations in memory that, as we demonstrate, … Expressiveness. To
express a diverse set of sparse matrix operations in any application, we need a rich cross-layer …

… be achieved, the OS has low visibility into rich fine-grained runtime memory behavior …
approach to memory virtualization that is inspired by the logical block abstraction used by solid-…