Computer industry has adopted multi-threaded and multi-core architectures as the clock rate increase stalled in early 2000’s. It was hoped that the continuous improvement of single-program performance could be achieved through these architectures. However, traditional parallelizing compilers often fail to effectively parallelize general-purpose applications which typically have complex control ...

Hardware (HW) security issues have been emerging at an alarming rate in recent years. Transient execution attacks, particular, pose a genuine threat to the of modern computing systems. Despite advances, understanding intricate implications microarchitectural design decisions on processor remains great challenge and has caused number update cycles past. This papers addresses need for new approac...

We propose a new programmable concurrency control framework called speculative nondeterminism for real time, “open” and distributed agents. In this framework, dynamic and concurrent agent programs affect each other through a centralized store which represents shared resources. Our framework has novel programming constructs which allows an agent to speculate against the future by multiple exclus...

Data dependencies between instructions greatly impede instruction-level parallelism. Recently two hardware techniques – Value Prediction and Value Reuse – have been proposed to overcome the limits imposed by data dependencies. We introduce a new hardware scheme for exploiting speculative value reuse by using value prediction. We propose a new microarchitecture which uses value prediction to pro...

Speculative design is an emerging rhetorical strategy in design practices and research to raise public awareness in social agendas that have been little explored. As a stream of this type of research, we propose speculative visualization that aims to achieve speculative design by utilizing techniques from data visualization and graphic design. Specifically, speculative visualization represents ...

We present an in-kernel disk prefetcher which uses speculative execution to determine what data an application is likely to require in the near future. By placing our design within the operating system, we provide several benefits compared to the previous application-level design. Not only is our system easier to implement and deploy, but by handling page faults as well as traditional file-acce...

We present an in-kernel disk prefetcher which uses speculative execution to determine what data an application is likely to require in the near future. By placing our design within the operating system, we provide several benefits compared to the previous application-level design. Not only is our system easier to implement and deploy , but by handling page faults as well as traditional file-acc...