The performance of a vector processor accessing vectors is strongly dependent on the conflicts produced in the memory subsystem. These conflicts delay the work of the functional units. The concurrent memory access of several vector streams causes inter-conflicts between the references of the different vector streams. In a memory system where several memory modules are mapped in every bus (compl...

One of the biggest challenges facing modern computer architects is overcoming the memory wall Technology trends dictate that the gap between processor and memory performance is widening Even though good cache behavior mitigates this problem to some extent memory latency remains a critical performance bottleneck in modern high performance processors Al though current high speed systems have impr...

In this paper, we describe TOGAPS, a TestabilityOriented Genetic Algorithm for Pipeline Synthesis. The input to TOGAPS is an unscheduled data flow graph along with a specification of the desired pipeline latency. TOGAPS generates a register-level description of a datapath which is near-optimal in terms of area, meets the latency requirement, and is highly testable. Genetic search is employed to...

To harvest increasing levels of ILP while maintaining a fast clock, clustered microarchitectures have been proposed. However, the fast clock enabled by clustering comes at the cost of multiple cycles to communicate values among clusters. A chief performance limiter of a clustered microarchitecture is inter-cluster communication between instructions. Specifically, inter-cluster communication bet...

Standard analyses of neurophysiologically evoked response data rely on signal averaging across many epochs associated with specific events. The amplitudes and latencies of these averaged events are subsequently interpreted in the context of the given perceptual, motor, or cognitive tasks. Can such critical timing properties of event-related responses be recovered from single-trial data? Here, w...

Wireless sensor networks are expected to be used in a wide range of applications from environment monitoring to event detection. The key challenge is to provide energy efficient communication; however, latency remains an important concern for many applications that require fast response. In this paper, we address the important problem of minimizing average communication latency for the active f...

Failure detectors are fundamental building blocks in distributed systems. Multi-node failure detectors, where the detector is tasked with monitoring N other nodes, play a critical role in overlay networks and peer-to-peer systems. In such networks, failures need to be detected quickly and with low overhead. Achieving these properties simultaneously poses a difficult tradeoff between detection l...

Nowadays main infrastructure-as-a-service (IaaS) systems have been widely exploiting the template-based VM creation and template caching techniques to reduce the startup latency of user VM and service response time. Because the new VMs created from the templates do not always have the same software system as needed, further reconfigurations, that is, installing the missing software components a...

Aim To compare morphologic variations of occipital sulci patterns in patients with schizophrenia and migraine headache regarding gender and laterality using magnetic resonance imaging (MRI) and visual evoked potentials (VEPs) as well as damage of visual pathway in patients with schizophrenia. Methods This study included 80 patients. Brain scans and visual evoked potential responses recorded ove...