For many applications of scientific computing, reduction operations may cause a performance bottleneck. In this article, the performance of different coarseand fine-grained methods for implementing the reduction is investigated. Fine-grained reductions using atomic operations or fine-grained explicit locks are compared to the coarse-grained reduction operations supplied by OpenMP and MPI. The r...

Accumulative Roll-Bonding (ARB) is one of the more recently developed techniques capable of producing bulk ultra-fine grained (ufg) metals. There are still many aspects of the behavior of ufg metals that lacks an in-depth understanding, such as a generalized view of the factors that govern the cyclic deformation mechanism(s). This study aims to advance the understanding of the cyclic deformatio...

The cross-rolling is a new process that results in significant evolutions in microstructure of the metallic sheets. In this study, an aluminium 1050 sheet was rolled up to 95% reduction in cross directions for ten passes. The rolled samples were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The rolled samples possess a high dislocation density and ultra-fin...

Dependency parsing is a way of syntactic parsing and a natural language that automatically analyzes the dependency structure of sentences, and the input for each sentence creates a dependency graph. Part-Of-Speech (POS) tagging is a prerequisite for dependency parsing. Generally, dependency parsers do the POS tagging task along with dependency parsing in a pipeline mode. Unfortunately, in pipel...

Fine-grained materials are used to seal the microstructure and improve mechanical parameters of formed cement sheath. They in slurries designed casing columns at great depths geothermal boreholes thermal conductivity. Such additions shorten setting time transition from value initial final setting. This allows shortening needed bind slurry move on further work. Additionally, it helps eliminate p...

Entity Recognition (ER) is a key component of relation extraction systems and many other natural-language processing applications. Unfortunately, most ER systems are restricted to produce labels from to a small set of entity classes, e.g., person, organization, location or miscellaneous. In order to intelligently understand text and extract a wide range of information, it is useful to more prec...

Fine-grained multithreading can be used to hide longlatency operations encountered in parallel computers during remote memory access. Instead of using special processor hardware, the emulation of fine-grained multithreading on standard processor hardware is investigated. While emulation of coarse-grained multithreading is common in modern operating systems, in the fine-grained case research on ...

As a software system evolves, its test suite can accumulate redundancies over time. Test minimization aims at removing redundant test cases. However, current techniques remove whole test cases from the test suite using test adequacy criteria, such as code coverage. This has two limitations, namely (1) by removing a whole test case the corresponding test assertions are also lost, which can inhib...

We present a concurrent Completion procedure based on the use of a SOUR graph as data structure. The procedure has the following characteristics. It is asynchronous, there is no need for a global memory or global control, equations are stored in a SOUR graph with maximal structure sharing, and each vertex is a process, representing a term. Therefore, the parallelism is at the term level. Each e...

Using fiber laser welding technology, X80 pipeline steel welded joints with different heat inputs were obtained. Their microstructure, mechanical properties, and corrosion resistance (in NACEA solution saturated hydrogen sulfide) studied. Findings indicated that the increase in input, proportion of ferrite, strength, elongation, increased within a certain range sum martensite bainite hardness d...