Interprocess communication (IPC) is ubiquitous in today’s computing world. One of the simplest mechanisms for IPC is shared memory. We present a system that enhances the System V IPC API to support distributed shared memory by using speculations. Speculations provide performance improvements by enabling rollback of overly optimistic speculative executions. The paper describes a speculative tota...

Transactional Memory (TM) is a synchronization model for parallel programming which provides optimistic concurrency control. Transactions can run in and are only serialized case of conflict. In this article we use hardware TM (HTM) to implement an speculative barrier (SB) replace the lock-based...

This article assays geographical research into nuclear cultures, and cognate conversations in atomic heritage, toxic waste studies, memory landscape as one way to develop the notion of memory. In doing so, we survey how geographers social scientists have sought think communicate things through three specific modes: archival, aesthetic, speculative. Our central argument is that provides a theore...