Software-implementations of shared memory are still far behind the performance of hardware-based shared memory implementations (HW-DSM) and are not viable options for most fine-grain shared memory applications. The major source for their inefficiency comes from the cost of interrupt-based asynchronous protocol processing, not from the actual network latency. As the raw hardware latency of inter...

This paper examines simultaneous multithreading, a technique permitting several independent threads to issue instructions to a superscalar's multiple functional units in a single cycle. We present several models of simultaneous multithreading and compare them with altemative organizations: a wide superscalar, a fine-grain multithreaded processor, and single-chip, multiple-issue multiprocessing ...

Locking is a standard technique in distributed computing and database systems used to ensure data integrity by prohibiting concurrent conflicting updates on shared data objects. Internet-based collaborative systems are a special class of distributed applications which support human-to-human interaction and collaboration over the Internet. In this paper, a novel optional and responsive fine-grai...

A processor for the adaptation of the coefficients in high throughput adaptive equalizers will be presented. The accumulation operation fundamental basis of the adaptation process is split into two steps: A fine-grain carry-save accumulation with timesharing factor 2 collects the products of estimated error and input symbols over a blocklength of 16 input symbols and operates at twice the symbo...

A theoretical model is suggested which describes the yield stress dependence on grain size in fine-grained materials, based upon competition between conventional dislocation slip, grain boundary diffusional creep (Coble creep) and triple junction diffusional creep. In the framework of the model, the contribution of diffusional creep mechanisms to plastic deformation increases with reduction of ...

Coating plays a significant role in surface engineering, which leads to the improvement of the mechanical and metallurgical properties of products. It also brings about economic benefits thanks to the cost savings of the improved properties of the surface of a product in particular. Friction surfacing is a relatively new way to create a homogeneous, fine-grained coating with amended resistance ...

Clusters of workstations have become a cost-effective means of performing scientific computations. However, large network latencies, resource sharing, and heterogeneity found in networks of clusters and Grids can impede the performance of applications not specifically tailored for use in such environments. A typical example is the traditional fine grain implementations of Krylov-like iterative ...

Autoradiographic techniques for use with the electron microscope have been developed and considerably improved in recent years. A review of this historical development is given by Meek and Moses (14), and a theoretical analysis of the problems involved by Pelc (17) and Caro (4). In this paper, we describe a method for preparing autoradiographic specimens, using a new, fine-grained emulsion and ...

Autoradiographic techniques for use with the electron microscope have been developed and considerably improved in recent years. A review of this historical development is given by Meek and Moses (14), and a theoretical analysis of the problems involved by Pelc (17) and Caro (4). In this paper, we describe a method for preparing autoradiographic specimens, using a new, fine-grained emulsion and ...

Cloud cover can influence numerous important ecological processes, including reproduction, growth, survival, and behavior, yet our assessment of its importance at the appropriate spatial scales has remained remarkably limited. If captured over a large extent yet at sufficiently fine spatial grain, cloud cover dynamics may provide key information for delineating a variety of habitat types and pr...