Selection of Good Lattice Points Utilizing a Cluster
نویسندگان
چکیده
A Message Passing Interface (MPI) cluster has been used for an extensive parallel search for rank-1 lattice rules using the LLL-Spectral Test [4, 9, 13]. Our parallel search implements the traditional normalization method [6] as well as a new normalization strategy which is proposed in [3]. The resulting lattice parameters of the parallel searches are stored in a database and distributed via a Web-based application server. We shortly introduce the main concepts concerning lattice rules and the spectral test. The concepts for parallelization are explained and some results of exhaustive parallel searches for good lattice points conclude the article.
منابع مشابه
گروه‌بندی لاین‌های گندم و گزینش گروهی آن‌ها در شرایط دیم
Increasing grain yield is the most important goal in any breeding program. Since yield is a complex trait and involves several quantitative components with low inheritance, its direct evaluation is not usually sufficient and therefore it is suggested that its components be investigated instead. The objective of this study was grouping 60 inbred lines along with four check cultivars of wheat fro...
متن کاملExtended RetroauricularTemporal Flap with Conchal Cartilage for Alar or Columellar Reconstruction
Abstract Background: The retroauricular-temporal or Washio flap has been introduced for reconstruction of partial nose and cheek defects, and has many advantages. We decided to evaluate the extended use of this technique in order to repair full thickness nasal defects. Methods: Superficial temporal and retroauricular arteries are identified with Doppler flowmetry. Selection points A, B, C and ...
متن کاملSpatial statistics for lattice points on the sphere I: Individual results
We study the spatial distribution of point sets on the sphere obtained from the representation of a large integer as a sum of three integer squares. We examine several statistics of these point sets, such as the electrostatic potential, Ripley's function, the variance of the number of points in random spherical caps, and the covering radius. Some of the results are conditional on t...
متن کاملHigh Tibial Osteotomy: A Systematic Review and Current Concept
High tibia osteotomy is a common procedure in orthopedic surgery. A precise overview on indications, patients selection, pre-operative planning, surgical technique, methods of fixation, and complications have been presented. This paper focused on the points that should be considered to achieve good long-term outcomes. High tibia osteotomy is a common procedure in orthopedic surgery. A precise o...
متن کاملLattice Boltzmann Simulation of Nanofluids Natural Convection Heat Transfer in Concentric Annulus (TECHNICAL NOTE)
Abstract This study is applied Lattice Boltzmann Method to investigate the natural convection flow utilizing nanofluids in a concentric annulus. A numerical strategy presents for dealing with curved boundaries of second order accuracy for both velocity and temperature fields. The fluid between the cylinders is a water-based nanofluid containing different types of nanoparticles: copper (Cu), a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005