Sparse matrix problems require a communication paradigm different from those used in conventional distributed-memory multiprocessors. We present in this paper how fine-grain communication can help obtain high performance in the experimental distributed-memory multiprocessor, EM-X, developed at ETL, which can handle fine-grain communication very efficiently. The sparse matrix kernel, Conjugate G...

in the present study, mechanical properties and low cycle fatigue behavior of a solid-solutionized aa6061 aluminum alloy produced by equal channel angular pressing (ecap) process were investigated. the grain refinement after two passes of ecap significantly increased the yield stress and ultimate tensile stress and decreased the ductility of the alloy. however, the improvement of low cycle fati...

Computer hardware is at the beginning of the multi-core revolution. While hardware at the commodity level is capable of running concurrent software, most software does not take advantage of this fact because parallel software development is difficult. This project addressed potential remedies to these difficulties by investigating graphical programming and fine-grain parallelism. A prototype sy...

An effect of rolling temperature on the mechanical properties and microstructural evolution of an Al-Mg-Si alloy was studied. The material was rolled up to a true strain of ∼0.7 at three different temperatures viz; room temperature, liquid propanol and liquid nitrogen. The liquid nitrogen rolled sample exhibited superior properties with a yield and tensile strength of 332 MPa and 364 MPa, respe...

The advancement of transmission electron microscopy has made it possible to analyze the metallographic structure of steel products on a nanoscopic scale, which leads to the detail understanding of microstructures such as fine precipitates and grain boundaries. The application of the characteristic technology to commercial steel products requires consistency in the structural analysis of steel f...

Progress: We have been investigating the use of dynamic cache resizing techniques for energy reduction. The idea of cache resizing is to match the active cache size with the current program cache usage requirements. When the cache usage is small, we can turn off parts of the cache. Neither active switching energy nor static leakage energy is dissipated in the part of the cache that is turned of...

This paper presents a new version of ALFA VER92], a ne grain dataaow machine. This machine uses the static dataaow execution model and is constituted by 128 clusters; each cluster groups 128 identical Functional Units (FU) with homogeneous I/O conditions. The peculiarity of this machine is the possibility to map directly part of dataaow graph programs in hardware for the simple FU design VER94b...

In this study, the cold rolling microstructure and static recrystallization mechanism of high strength titanium alloy Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe were systematically investigated. Results show that is mainly composed elongated deformed ? grains containing micro-shear bands. After annealing at 815 °C for 2 min, fine SRXed are observed, concentrated in band, grain boundary interior grain. The s...

Due to the condition of the original material, there are unavoidable flaws in this reproduction. We have made every effort possible to provide you with the best copy available. If you are dissatisfied with this product and find it unusable, please contact Document Services as soon as possible. ABSTRACT Simultaneous determination of the lamellar morphological length scale and the grain size of s...

Huge efforts have been invested in the last two decades to dissect the genetic bases of complex traits including yields of many crop plants, through quantitative trait locus (QTL) analyses. However, almost all the studies were based on linkage maps constructed using low-throughput molecular markers, e.g. restriction fragment length polymorphisms (RFLPs) and simple sequence repeats (SSRs), thus ...