An efficient coarse-grained parallel algorithm for global-local multiscale computations on massively parallel systems

2009 ◽  
Vol 82 (3) ◽  
pp. 379-402 ◽  
Author(s):  
Rahul ◽  
Suvranu De
Keyword(s):  
Parallel Algorithm ◽  
Parallel Systems ◽  
Coarse Grained ◽  
Massively Parallel ◽  
Massively Parallel Systems ◽  
Multiscale Computations

Enhanced Ant Colony-Inspired Parallel Algorithm to Improve Cryptographic PRNGs

2017 ◽  
Author(s):  
Jorg Keller ◽  
Gabriele Spenger ◽  
Steffen Wendzel
Keyword(s):  
State Space ◽  
Parallel Algorithm ◽  
Random Number ◽  
Random Number Generator ◽  
Ant Colony ◽  
Massively Parallel ◽  
Power Devices ◽  
Promising Candidate ◽  
Massively Parallel Systems ◽  
Pseudo Random Number Generator

We present and motivate a parallel algorithm to compute promising candidate states for modifying the state space of a pseudo-random number generator in order to increase its cycle length. This is important for generators in low-power devices where increase of state space to achieve longer cycles is not an alternative. The runtime of the parallel algorithm is improved by an analogy to ant colony behavior: if two paths meet, the resulting path is followed at accelerated speed just as ants tend to reinforce paths that have been used by other ants. We evaluate our algorithm with simulations and demonstrate high parallel efficiency that makes the algorithm well-suited even for massively parallel systems like GPUs. Furthermore, the accelerated path variant of the algorithm achieves a runtime improvement of up to 4% over the straightforward implementation.1  

Local diagnosis in massively parallel systems

1997 ◽  
Vol 23 (6) ◽  
pp. 721-731 ◽  
Author(s):  
Roman Trobec ◽  
Izidor Jerebic
Keyword(s):  
Parallel Systems ◽  
Massively Parallel ◽  
Massively Parallel Systems

Fluid-Acoustics Interaction on Massively Parallel Systems

2015 ◽  
pp. 151-165
Author(s):  
Hans-Joachim Bungartz ◽  
Harald Klimach ◽  
Verena Krupp ◽  
Florian Lindner ◽  
Miriam Mehl ◽  
...  
Keyword(s):  
Parallel Systems ◽  
Massively Parallel ◽  
Massively Parallel Systems
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