This paper makes the following contributions: It proposes a new methodology for quantifying remote memory access contention on hardware DSM multiprocessors. The most valuable aspect of this methodology is that it assesses the overhead of contention on real parallel programs running on real hardware. The methodology uses as input the number of accesses from each node of the DSM to each page in m...

Consolidation of remote memory enhances immediate early genes induction (IEGs), augments the expression of the pre-synaptic growth associated protein-43 (GAP-43), and increases the density and size of dendritic spines in anterior cingulate (aCC) and infra-limbic (ILC) cortices. Remote memory extinction, however, does not uniformly alter consolidation-induced structural changes. In the aCC, the ...

Sub-microsecond network and memory latencies require fast user-level access to local and remote storage. While user-level access to local storage has been demonstrated recently, it does currently not extend to serverless parallel systems in datacenter environments. We propose direct user-level access to remote storage in a distributed setting, unifying fast data access and high-performance remo...

This paper presents remote store programming (RSP). This paradigm combines usability and efficiency through the exploitation of a simple hardware mechanism, the remote store, which can easily be added to existing multicores. Remote store programs are marked by fine-grained and one-sided communication which results in a stream of data flowing from the registers of a sending process to the cache ...

The time-limited role of the medial temporal lobe (MTL) in human long-term memory is well known. However, there is still no direct neuroimaging evidence to confirm it. In this fMRI study, nine subjects were scanned while asked to recall the places they visited more than seven years ago (remote memories); and the places they visited recently (recent memories). We observed robust and dominant MTL...

BACKGROUND Computer-supported neural network models have been subjected to diffuse, progressive deletion of synapses/neurons, to show that modelling cerebral neuropathological changes can predict the pattern of memory degradation in diffuse degenerative processes such as Alzheimer's disease. However, it has been suggested that neural models cannot account for more detailed aspects of memory imp...

This paper describes an e cient implementation of MPI on the Memory-Based Communication Facilities; Memory-Based FIFO is used for bu ering by the library, and Remote Write for communication with no bu ering. The Memory-Based Communication Facilities are software-based communication mechanisms, with o -the-shelf Ethernet hardware. They provide low-cost and highly-functional primitives for remote...

Specialized, transient data services are playing an increasingly prominent role in data-intensive scientific computing. These services offer flexible, on-demand pairing of applications with storage hardware using semantics that are optimized for the problem domain. Concurrent with this trend, upcoming scientific computing and big data systems will be deployed with emerging non-volatile memory (...

Multithreading is known be e ective for tolerating communication latency in distributed-memory multiprocessors. Two types of support for multithreading have been used to date including software and hardware. This paper presents the impact of multithreading on performance through empirical studies. In particular, we explicate the performance di erence between software support and hardware suppor...

Transient epileptic amnesia (TEA) is a recently recognised form of epilepsy of which the principle manifestation is recurrent, transient episodes of isolated memory loss. In addition to the amnesic episodes, many patients describe significant interictal memory difficulties. Performance on standard neuropsychological tests is often normal. However, two unusual forms of memory deficit have recent...