Generating sequential code from parallel code

1988 ◽  
Author(s):  
J. Ferrante ◽  
M. Mace ◽  
B. Simons
Keyword(s):  
Sequential Code ◽  
Parallel Code

A GUI for Parallel Code Generation

1994 ◽  
pp. 69-79 ◽  
Author(s):  
Mark R. Gilder ◽  
Mukkai S. Krishnamoorthy ◽  
John R. Punin
Keyword(s):  
Code Generation ◽  
Parallel Code

Architecting an autograder for parallel code

2014 ◽  
Author(s):  
Razvan Carbunescu ◽  
Aditya Devarakonda ◽  
James Demmel ◽  
Steven Gordon ◽  
Jay Alameda ◽  
...  
Keyword(s):  
Parallel Code

scholarly journals FFT Splitting for Improved FPGA-Based Acquisition of GNSS Signals

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Jérôme Leclère ◽  
Cyril Botteron ◽  
René Jr. Landry ◽  
Pierre-André Farine
Keyword(s):  
Processing Time ◽  
Satellite System ◽  
Fpga Implementation ◽  
Probability Of Detection ◽  
Navigation Satellite ◽  
Code Search ◽  
Parallel Code ◽  
Memory Reduction ◽  
Straightforward Solution ◽  
Global Navigation Satellite

With modern global navigation satellite system (GNSS) signals, the FFT-based parallel code search acquisition must handle the frequent sign transitions due to the data or the secondary code. There is a straightforward solution to this problem, which consists in doubling the length of the FFTs, leading to a significant increase of the complexity. The authors already proposed a method to reduce the complexity without impairing the probability of detection. In particular, this led to a 50% memory reduction for an FPGA implementation. In this paper, the authors propose another approach, namely, the splitting of a large FFT into three or five smaller FFTs, providing better performances and higher flexibility. For an FPGA implementation, compared to the previously proposed approach, at the expense of a slight increase of the logic and multiplier resources, the splitting into three and five allows, respectively, a reduction of 40% and 64% of the memory, and of 25% and 37.5% of the processing time. Moreover, with the splitting into three FFTs, the algorithm is applicable for sampling frequencies up to 24.576 MHz for L5 band signals, against 21.846 MHz with the previously proposed algorithm. The algorithm is applied here to the GPS L5 and Galileo E5a, E5b, and E1 signals.

SLADS: a parallel code for direct simulations of scattering of large anisotropic dense nanoparticle systems

2017 ◽  
Vol 50 (3) ◽  
pp. 951-958 ◽  
Author(s):  
Sen Chen ◽  
Juncheng E ◽  
Sheng-Nian Luo
Keyword(s):  
Analytical Solutions ◽  
Small Angle ◽  
Real Space ◽  
Small Angle Scattering ◽  
Two Dimensional ◽  
X Ray ◽  
X Ray Scattering ◽  
Angle Scattering ◽  
Parallel Code ◽  
Diffraction Patterns

SLADS(http://www.pims.ac.cn/Resources.html), a parallel code for direct simulations of X-ray scattering of large anisotropic dense nanoparticle systems of arbitrary species and atomic configurations, is presented. Particles can be of arbitrary shapes and dispersities, and interactions between particles are considered. Parallelization is achieved in real space for the sake of memory limitation. The system sizes attempted are up to one billion atoms, and particle concentrations in dense systems up to 0.36. Anisotropy is explored in terms of superlattices. One- and two-dimensional small-angle scattering or diffraction patterns are obtained.SLADSis validated self-consistently or against cases with analytical solutions.

Structural and Mechanical Properties of a Simulated Nickel Nanophase

1995 ◽  
Vol 400 ◽  
Author(s):  
G. D’Agostino ◽  
H. Van Swygenhoven
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Local Minimum ◽  
Minimum Energy ◽  
Perfect Crystal ◽  
Atomic Level ◽  
Dynamic Evolution ◽  
Plastic Behaviour ◽  
Simulated Sample ◽  
Parallel Code

AbstractThe present paper is aimed at studying the physics of a nickel nanophase at the atomic level. A dense polycrystal has been designed by ideally growing many nano-crystals from randomly distributed seeds and truncating them through a Voronoi construction. The sample has been brought to thermodynamic equilibrium and quenched to its local minimum energy thus leading to a mechanically stable system. The dynamic evolution has been simulated by means of classical molecular dynamics employing a Finnis-Sinclair interactive potential. Owing to the large number of atoms required, a parallel code has been developed. Elastic and plastic behaviour of the simulated sample has been compared with that of a perfect crystal. Evidence of an enhanced plastic behaviour has been observed when severe tensile stresses are applied.

scholarly journals Control rod drop transient analysis with the coupled parallel code pCTF-PARCSv2.7

2016 ◽  
Vol 87 ◽  
pp. 308-317 ◽  
Author(s):  
Enrique Ramos ◽  
Jose E. Roman ◽  
Agustín Abarca ◽  
Rafael Miró ◽  
Juan A. Bermejo
Keyword(s):  
Transient Analysis ◽  
Control Rod ◽  
Parallel Code
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