automatic code parallelization and optimization

... 18.3.3.2 Integrated Sensing and Decision Support 378 18.4 Summary 379 References 379 Chapter 19 Automatic Code Parallelization and Optimization 381 Nadya ... 19.3 Automatic Parallelization Approaches: A Taxonomy 384 19.4 Maps and Map Independence 385 19.5 Local Optimization in an Automatically Tuned Library 386 19.6 Compiler and ... techniques and prototypes for surface surveillance, laser systems, active and passive adaptive array processing, integrated sensing and decision support, undersea warfare, and embedded hardware and...

Ngày tải lên: 08/03/2016, 11:34

... Several more powerful codes that require iterative decoding have recently become popular Turbo codes use multiple encoders The input data is encoded by two convolutional encoders, each of which ... decoding units, one for each code The two decoders are operated iteratively At each iteration, the two decoders swap likelihood estimates of the decoded bits; each decoder uses the other’s likelihoods ... style encoder (The MPEG-2 standard is the basis for digital television broadcasting in the United States.) The encoder makes use of the DCT and variable-length coding It adds motion estimation and...

Ngày tải lên: 08/03/2016, 11:34

... (2006, Chap 1), Karniadakis and Kirby (2003, Sect 2.2.6), Rauber and Rünger (2013, Chap 2) and Dowd and Severance (1998, Chap 3) 6 Standard Concepts of High Performance and Scientific Computing ... PBLAS and SCALAPACK the following types of matrices are known: in-core dense matrix (value 1) used here only (narrow band and tridiagonal matrices (value 501), narrow band and tridiagonal right-hand-side ... the meaning changes for other matrix types, i.e narrow band and tridiagonal matrices , narrow band and tridiagonal right-hand-side matrices and out-of-core dense matrices As only in-core dense matrices...

Ngày tải lên: 25/11/2015, 13:27

... manuscript BT and RR gathered and interpreted clinical data LM and KJ performed the FISH analysis and interpreted the data AZ and SB performed statistical analysis and helped to format and interpret ... into three categories: overexpressed (frequency 3+ and 4+), expressed (frequency 1+ and 2+) and undetected (frequency 0) Time to recurrence and overall survival were measured as months from the ... in water, and dehydrated in 70%, 85%, and 100% ethanol The slides were hybridized with the 3color FISH probe solutions in a HYBrite™ automated codenaturation oven (Abbott Molecular) and then immersed...

Ngày tải lên: 10/08/2014, 22:20

... discursive practices, events and texts, and (b) wider social and cultural structures, relations and processes; to investigate how such practices, events and texts arise out of and are ideologically ... Christina: Bold and Italic - The rabbi: Italic - Mr von Braumer: regular and underlined - Mrs von Braumer: Italic and underlined - Benjamin and Christina: Bold and Underlined - Mr and Mrs von Braumer: ... with studying and analyzing written and spoken texts to reveal the discursive sources of power, dominance, inequality and bias It examines how these discursive sources are maintained and reproduced...

Ngày tải lên: 02/03/2015, 14:22

... Tagaya et al The compilers provide advanced automatic optimization features including automatic vectorization and automatic parallelization, partial and conditional vectorization, index migration, ... full compile and link functionality FORTRAN90/SX offers automatic vectorization and parallelization applied to standard portable Fortran95 codes In addition to the listed advanced optimization ... FORTRAN and C as well as C++ compilers with a high level of automatic vectorization and parallelization Distributed memory parallel systems require use of programmer coded message passing and associated...

Ngày tải lên: 15/12/2013, 13:15

... [5, 6] with promising results We use two LB MHD codes, a previously used 2D code [7, 1] and a more recently developed 3D code In both cases, the codes simulate the behavior of a conducting fluid ... 3D code, the effects of bank conflicts are minimal Table LBMHD2D and LBMHD3D bank conflict time (as percentage of real time) shown for a range of concurrencies and grid sizes on ES and SX-8 Code ... the ratio of communication and computation remains constant The inter-node parallelization implements domain decomposition and MPI for message passing Computation and communication are completely...

Ngày tải lên: 24/12/2013, 19:15

... for LES and SGS modelling are given in Lesieur and M´tais (1996); Domaradzki and Adams (2002); Meneveau and Katz (2000); e Piomelli (2001) and in the recent text books by Sagaut (2005) and Geurts ... core operation Hv common for both the Lanczos and the PCG algorithms and present the parallelization including data partitioning, the communication, and the overlap strategy 4.1 Core Operation: ... method and the PCG method with the TA method for huge Hamiltonian matrices is presented in Table and Table shows the system configurations, specifically, the numbers of sites and fermions and the...

Ngày tải lên: 24/12/2013, 19:15

... multi-field and multiscale problems, structural and fluid dynamics, shape and topology optimization, material modeling and finite element technology The code is parallelized using MPI and runs on ... transitional/turbulent flows and the effect of aliasing errors In R Friedrich, B J Geurts, and O M´tais, editors, Direct and Large-Eddy Simulation V, pages 65–72 Kluwer, e Dordrecht, The Netherlands, 2004b P ... such large-scale optimization problems in design and engineering 1.1 Existing Tools for Parameter Investigation Studies Tools like Nimrod [1] and Ilab [1] enable parameter sweeps and jobs, running...

Ngày tải lên: 24/12/2013, 19:15

... been the German and French research centers DLR and ONERA, the university of Stuttgart and the helicopter manufacturer Eurocopter Within the CHANCE project, the flow solvers of DLR and ONERA have ... different code structure, where the Chimera-part contains many integer operations and non-vectorized if-branches, whereas the flow solution procedure has a simple code structure, is well vectorized and ... high-resolution boiler model The optimization parameters “OFA damper setting”, “CCOFA damper setting”, and “Tilting Angle” Fig Evaluation functions for a NOx versus C in Ash optimization Please purchase...

Ngày tải lên: 24/12/2013, 19:15

... ′ , w′ and p′ per grid point and time level No extra equations for viscous terms and chemical reaction need to be considered since these terms can be found on the RHS of the APE system and are ... solving the momentum and continuity equations, the turbulence quantities are calculated and a new turbulence viscosity is gained The k and εequations are also linearised and solved with BICGSTAB2 ... with the standard k – ε model leads to a steady state solution It forms a recirculation region in the center and keeps it steady On the other hand applying the extended k – ε of Chen and Kim small...

Ngày tải lên: 24/12/2013, 19:15

... transport, and discuss the system of equations and the algorithm for its solution that are employed in this code We also report first benchmark results from this code on an SGI Altix and a NEC ... possible to restart and continue the simulation run after an interruption A library offers functions for reading and writing these files and thereby a common interface 2.3 Algorithm and Data Structure ... kernels of its right-hand side, with the moments J and H, for which estimates are obtained from a solution of the system of moment equations (2–3), (6) and (7) With the right-hand side known, the...

Ngày tải lên: 24/12/2013, 19:15

... research and design practice But still, as shown by some examples below, an adequate understanding is lacking and the computational practice is fraught with controversy, misunderstanding and misuse ... viscous and buffer layers, approximately located at y + < 10 and 10 < y + < 70, respectively) and the core flow (whose description and location depends significantly on the flow geometry), and that ... or patterned Starting from climate research and weather prediction, covering aeronautics and automotive engineering, chemical and machine engineering, and nowadays penetrating into high Please...

Ngày tải lên: 24/12/2013, 19:15

... numerical scheme, based on the previous compressible IAG code, as well as a hybrid parallelization, consisting of MPI and shared memory parallelization, has been implemented This allows its application ... transformation in the x-y plane hybrid parallelization consisting of MPI and shared memory parallelization applicable to a wide range of problems: sub-, trans- and supersonic To increase the performance ... µs per grid-point To evaluate the quality of the parallelization, speedup and efficiency are taken into account Again 30000 timesteps are computed and the grid size of each domain is those mentioned...

Ngày tải lên: 24/12/2013, 19:15

... gradient bands, HPLC analysis revealed that a- and b-phycocyanins Ó FEBS 2002 are the most abundant components Their presence is particularly prevalent in the heavier bands (bands 3–5), and it is ... four main blue bands were observed, plus a faint blue band at the top The first band, corresponding to the smaller complexes, was faintly colored, the second was the most colored and the more abundant, ... hydrophilic proteins such as linkers and a significant amount of a- and b-phycocyanins, and only traces of the allophycocyanins On the contrary, HPLC analysis of bands 2–5 revealed that linker proteins...

Ngày tải lên: 08/03/2014, 16:20

... current situation of teaching and learning prelistening stage at Nguyen Gia Thieu high school, the students’ preferences for pre-listening activities and the teachers’ and the students’ comments ... 41 4.2.2 Using pre-listening activities appropriately and flexibly Part three: Conclusion Conclusion Limitations and Suggestions References Appendix ... Chapter Findings and recommendations for implementing pre-listening activities 4.1 Major findings 4.1.1 The current situation of teaching and learning pre-listening...

Ngày tải lên: 19/03/2015, 10:37

... states This type of probability FSM is first utilized in Q-coder, and adopted in QM coder and MQ coder Compared to Q-coder, QM coder, and MQ coder, the representative LPS probability values need not ... CABAC stands for Context-based Adaptive Binary Arithmetic Coding Although Qcoder [52], QM coder [53], and MQ coder [54]of previously image coding standards are also binary arithmetic coders with ... encode SE of 4×4 block quantized transform coefficients, and Exp-Golomb coding is applied to encode other MB-level and high level SEs For the Main and High profiles targeting at high bit-rate and...

Ngày tải lên: 10/09/2015, 15:50

... Critical Care Vol 13 No Sand et al patients [3] Recent data on IMEs is sparse, often based on a single airline and a short time period, and is not correlated to revenue passenger ... and classified different categories of medical and surgical emergencies Only events that actually happened in the air after take-off and before landing were included rpk values were also obtained ... most of them inconsistently, which would seem to indicate that legislation for mandatory standardised documentation and the establishment of an international registry is needed [12] Flying on commercial...

Ngày tải lên: 25/10/2012, 10:31