6 papers
Computational Performance and Energy Efficiency of ARM based HPC servers
Oskar Schirmer
HPC world is dominated by x86 ISA CPUs. This monoculture is not necessarily justified by best performance evaluation, but may inherit from e.g. SW related restrictions on the choic…
Parallel Architecture Hardware and General Purpose Operating System Co-design
Oskar Schirmer
Because most optimisations to achieve higher computational performance eventually are limited, parallelism that scales is required. Parallelised hardware alone is not sufficient, b…
A Domain-specific Language for High-reliability Software used in the JUICE SWI Instrument - The hO Language Manual
Felix Winkelmann, Oskar Schirmer
hO is a custom restricted dialect of Oberon, developed at the Max-Planck Institute for Solar System Research in Göttingen and used in the SWI flight software for the JUICE mission.…
NOP - A Simple Experimental Processor for Parallel Deployment
Oskar Schirmer
The design of a parallel computing system using several thousands or even up to a million processors asks for processing units that are simple and thus small in space, to make as m…
GuStL - An Experimental Guarded States Language
Oskar Schirmer
Programming a parallel computing system that consists of several thousands or even up to a million message passing processing units may ask for a language that supports waiting for…
Using Virtual Addresses with Communication Channels
Oskar Schirmer
While for single processor and SMP machines, memory is the allocatable quantity, for machines made up of large amounts of parallel computing units, each with its own local memory,…