We show that loop quantum gravity suffers from a potential problem with nonlocality, coming from a mismatch between micro-locality, as defined by the combinatorial structures of their microscopic states, and macro-locality, defined by the metric which emerges from the low energy limit. As a result, the low energy limit may suffer from a disordered locality characterized by identifications of fa...

We reconsider the consequences of the observed violations of Bell’s inequalities. Two common responses to these violations are: (i) the rejection of realism and the retention of locality, and (ii) the rejection of locality and the retention of realism. Here we critique response (i). We argue that locality contains an implicit form of realism, since in a world view that embraces locality, spacet...

Studying generalized non-signalling theories brings insight to the foundations of quantum mechanics. Here we focus on a dynamical process in such general theories, namely non-locality swapping, the analogue of quantum entanglement swapping. In order to implement such a protocol, one needs to define a coupler, which performs the equivalent of quantum joint measurements on generalized ‘box-like’ ...

Odin is a new high performance single address space multiprocessor design. The contribution of this investigation is the synthesis of three important new methods into a unified system which maximises data locality and significantly reduces data access latencies. To achieve high performance Odin uses a segmented stack to maintain data locality after thread migration, and a memory mapping that di...

It is well known that using high-locality representations is important for efficient evolutionary search. This paper investigates the locality of the genotype-phenotype mapping (representation) used in grammatical evolution (GE). The results show that the representation used in GE has problems with locality as many neighboring genotypes do not correspond to neighboring phenotypes. Experiments w...

Technology. All rights reserved. No part of this series may be reproduced in any form or by any means without prior written permission of the publisher. Wojciechowski et al. Wp The influence of locality on BitTorrentWp PDS Wp Wp Abstract Traffic localization is currently considered a promising approach to decrease the load of P2P systems on the Internet backbone. A number of solutions that prom...

While the dataaow execution model can potentially uncover all forms and levels of parallelism in a program, in its traditional ne-grain form, it does not exploit any form of locality. Recent evidence indicates that the exploitation of locality in dataaow programs could have a dramatic impact on performance. The current trend in the design of dataaow processors suggest a synthesis of traditional...

Programming models such as CUDA and OpenCL allow the programmer to specify the independence of threads, effectively removing ordering constraints. Still, parallel architectures such as the graphics processing unit (GPU) do not exploit the potential of data-locality enabled by this independence. Therefore, programmers are required to manually perform data-locality optimisations such as memory co...

Software prefetching and locality optimizations are techniques for overcoming the speed gap between processor and memory. In this paper, we provide a comprehensive summary of current software prefetching and locality optimization techniques, and evaluate the impact of memory trends on the effectiveness of these techniques for three types of applications: regular scientific codes, irregular scie...

An environment is characterized by spatial locality of queries and information when it is likely that users in close geographic proximity query for similar data. Information exhibits spatial locality when it is coupled to a real-world place. For example, play reviews are most relevant in a theater; and users in a Dental school may be particularly interested in web sites on related subjects. The...