Now showing items 1-10 of 94
Implementing and optimizing a Sparse Matrix-Vector Multiplication with UPC
(Research report; Forskningsrapport, 2016)
Programmability and performance-per-watt are the major challenges of the race to Exascale. In this study we focus on Partitioned Global Address Space (PGAS) languages, using UPC as a particular example. This category of parallel languages provides ease of programming as a strong advantage over the classic Message Passing Interface(MPI). PGAS has also advantages compared to classic shared memory ...
Food/feed and environmental risk assessment of genetically modified glufosinate-tolerant oilseed rape MS8, RF3 and MS8 x RF3 for import, processing and feed uses under Directive 2001/18/EC (Notification C/BE/96/01)
(Research report; Forskningsrapport, 2014-03-28)
In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Environment Agency (former Norwegian Directorate for Nature Management) has requested the Norwegian Food Safety Authority (NFSA) to give final opinions on all genetically modified organisms (GMOs) and products containing or consisting of GMOs that are authorized in the European Union ...
Fysikk i den polare atmosfæren og nordlyset
(Research report; Forskningsrapport, 2008)
Den polare atmosfæren har fått mer oppmerksomhet i den senere tid enn den vanligvis har vært forunt. Dette henger sammen med tanken om at den er så ren og upåvirket av eventuelle forurensninger som vi pumper ut i atmosfæren i de mer urbane strøk. Dersom atmosfæren tar skade av denne aktiviteten, forventer en å se skadevirkningene først og klarest i den polare atmosfæren. Svekkelsen av ozonlaget ...
Experimental Fault-Tolerant Synchronization for Reliable Computation on Graphics Processors
(Research report; Forskningsrapport, 2012)
Graphics processors (GPUs) are emerging as a promising platform for highly parallel, compute-intensive, general-purpose computations, which usually need support for inter-process synchronization. Using the traditional lock-based synchronization (e.g. mutual exclusion) makes the computation vulnerable to faults caused by both scientists’ inexperience and hardware transient errors. It is notoriously ...
Muithu: Smaller Footprint, Potentially Larger Imprint
(Research report; Forskningsrapport, 2012)
We describe our experience with the Muithu sports notational analysis system, a novel digital information system in the popular sports domain. The system integrates real-time coach notations with related video sequences, and is configured with small, off-the shelf and cheap components. Muithu requires little or no human post-processing, which is in strong contrast to state-of-the art resource-intensive ...
Muliggjørende teknologi og rammebetingelser
(Research report; Forskningsrapport, 2018-02-19)
Report on the final prototype of programming abstractions for energy-efficient inter-process communication
(Research report; Forskningsrapport; Preprint; Manuskript, 2016)
Work package 2 (WP2) aims to develop libraries for energy-efficient inter-processcommunication and data sharing on the EXCESS platforms. The Deliverable D2.4reports on the final prototype of programming abstractions for energy-efficient inter-process communication. Section 1 is the updated overview of the prototype of pro-gramming abstraction and devised power/energy models. The Section 2-6 contain ...
White-box methodologies, programming abstractions and libraries
(Research report; Forskningsrapport; Preprint; Manuskript, 2015)
This deliverable reports the results of white-box methodologies and early results ofthe first prototype of libraries and programming abstractions as available by projectmonth 18 by Work Package 2 (WP2). It reports i) the latest results of Task 2.2on white-box methodologies, programming abstractions and libraries for developingenergy-efficient data structures and algorithms ...
NB-FEB : an easy-to-use and scalable universal synchronization primitive for parallel programming
(Research report; Forskningsrapport, 2008-10)
This paper addresses the problem of universal synchronization primitives that can support scalable thread synchronization for large-scale many-core architectures. The universal synchronization primitives that have been deployed widely in conventional architectures, are the compare-and-swap (CAS) and load-linked/store-conditional (LL/SC) primitives. However, such synchronization primitives are ...
Maximilian Hell's geomagnetic observations in Norway 1769
(Research report; Forskningsrapport, 2005)
In the years 1768-1770 an expedition lead by the Austrian/Hungarian astronomer and Jesuit Father Maximilian Hell travelled to Vardø in the northernmost part of Norway. The main objective of the expedition was to observe the transit of Venus in June 1769. However, scientific investigations in several other fields were also performed, among them observations of the magnetic declination. From the ...