On high performance computing in geodesy

... and global matrix int colInGlobalMat ( int cl ) const ; int rowInGlobalMat ( int rl ) const ; void posInLocalMat ( int r , int c , int & rl , int & cl , int & rowProcIdx , int & colProcIdx ) ... , int fromRank =0 , int offset = ) ; void collectOnRank ( int onRank , Matrix & Ajoint ) ; // computing routines manly referencing SCALAPCK PBLAS functions // different multiplications including ......

Ngày tải lên: 25/11/2015, 13:27

... High Performance Computing in Science and Engineering ’10 Wolfgang E Nagel r Dietmar B Kröner Michael M Resch r Editors High Performance Computing in Science and Engineering ’10 Transactions ... shown in the figure The LUMO is of D and the 18 HOMO of P symmetry showing again a DESC with ns = and explaining the large HOMO-LUMO gaps The splitting...

Ngày tải lên: 01/06/2014, 09:18

... 10 High- Performance Computing in Remote Sensing have been directed towards the incorporation of high- performance computing (HPC) models to remote sensing missions In this chapter, an ... imaging in remote sensing 11 © 20 08 by Taylor & Francis Group, LLC 12 High- Performance Computing in Remote Sensing is a good example of the computational requirem...

Ngày tải lên: 12/08/2014, 03:20

... Mean 541 .8 3.0 592.9 35.2 0.39 Min Max 3 74. 6 1 140 .3 2.9 3.0 390.6 1 341 .4 31.8 39.9 0.05 0. 74 94 High- Performance Computing in Remote Sensing many gigabytes in size) ORASIS, like most linear mixing ... N-FINDR ORASIS N-FINDR 111 128 140 77 24 80 78 82 47 21 32 57 60 32 53 51 48 31 19 © 2008 by Taylor & Francis Group, LLC 92 High- Performance Computing in Rem...

Ngày tải lên: 12/08/2014, 03:20

... for high- performance computing in many ongoing and planned remote sensing missions [3, 11] To address the need for cost-effective and innovative algorithms in this emerging new area, this chapter ... scores are slightly increased with regard to those obtained for HeteroCOM © 2008 by Taylor & Francis Group, LLC 146 High- Performance Computing in Remote Sensing TABLE...

Ngày tải lên: 12/08/2014, 03:20

... Corn-EW Corn-NS Corn-CleanTill Corn-CleanTill-EW Corn-CleanTill-NS Corn-CleanTill-NS-Irrigated Corn-CleanTilled-NS? Corn-MinTill Corn-MinTill-EW Corn-MinTill-NS Corn-NoTill Corn-NoTill-EW Corn-NoTill-NS ... 1 58. 48 157.97 1 58. 63 1 58. 68 180 .23 180 .15 1 78. 81 185 .82 184 .96 185 .14 180 .23 187 .15 204. 08 201.71 201.46 199.51 1 98. 88 193.45 196.05 226.41 225.79 226.79 226.41 221.2...

Ngày tải lên: 12/08/2014, 03:20

... of peer-to-peer computing, Internet computing, high- throughput computing, distributed supercomputing, or ubiquitous computing 9. 4.3 End-User Tools Thus far, we have described the service-oriented ... 184 9. 1 High- Performance Computing in Remote Sensing Introduction The concept of distributed computing has been around since the development of networks and many computer...

Ngày tải lên: 12/08/2014, 03:20

... Group, LLC 248 High- Performance Computing in Remote Sensing r The many different actors involved Science is becoming increasingly international and interdisciplinary, resulting in an increased total ... organizations, avoiding © 2008 by Taylor & Francis Group, LLC 250 High- Performance Computing in Remote Sensing duplication, and has increased the cooperation and coor...

Ngày tải lên: 12/08/2014, 03:20

... Group, LLC 342 High- Performance Computing in Remote Sensing Cross Track Sample Wavelength Figure 14. 6 Depiction of the spectral cross-track and spectral-IFOV uniformity for a uniform imaging spectrometer ... valuable information from existing AVIRIS measurements © 2008 by Taylor & Francis Group, LLC 348 High- Performance Computing in Remote Sensing 14. 3 Objectives a...

Ngày tải lên: 12/08/2014, 03:20

... three remote sensing data formats: pixel-by-pixel processing for BIP formats, line-by-line processing for BIL formats, and band-by-band processing for BSQ formants In the pixel-by-pixel fashion, ... 398 High- Performance Computing in Remote Sensing detection and discrimination This technique is developed for our proposed algorithm, called the constrained linear discriminant a...

Ngày tải lên: 12/08/2014, 03:20

... 420 High- Performance Computing in Remote Sensing In summary, GPU makers will continue the battle for dominance in the consumer gaming industry, producing a competitive environment with rapid innovation ... a stateof-the-art GPU, as well as on an older (3-year-old) system in order to account for © 2008 by Taylor & Francis Group, LLC 442 High- Performance Computing in...

Ngày tải lên: 12/08/2014, 03:20

... common expression elimination, code motion, exponentiation optimization, optimization of masked operations, loop unrolling, loop fusion, inline subroutine expansion, conversion of division to ... optimization features including automatic vectorization and automatic parallelization, partial and conditional vectorization, index migration, loop collapsing, nested loop vectorization, conversions,...

Ngày tải lên: 15/12/2013, 13:15

... thread synchronisation), yielding low performance on small domains and saturation at high performance on large domains For the pipeline-parallel (SGI Altix) 3-D implementation a maximum performance ... originally developed for high- performance vector computers such as CRAY, NEC or Fujitsu, it achieves high vectorization ratios (> 99.8%) In the context of vectorization, thr...

Ngày tải lên: 24/12/2013, 19:15

... equilibrium condition, the conventional Fermi-Golden rule dealing the electron-phonon coupling thus does not work Under such a non-equilibrium condition, the real-time propagation must be treated ... electronic excitations [5] In addition to the ‘real-time propagation’ of electrons [4], we treat ionic motion within Ehrenfest approximation [6] Since ion dynamics requires typical simulation tim...

Ngày tải lên: 24/12/2013, 19:15

... good portion of the theoretical peak performance on the vector machine Block operations are not only efficient on vector systems, but also on scalar architectures [9] The results of matrix vector ... 1.3 Vector Optimization To achieve high performance on a vector architecture there are three main variants of vectorization tuning: – compiler flags – compiler directives – c...

Ngày tải lên: 24/12/2013, 19:15