Kedama: A GUI-Based Interactive Massively Parallel Particle Programming System

Ohshima, Yoshiki

doi:10.1109/vlhcc.2005.49

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…In this case, all of the turtles move downward (heading = 180) by the last "forward by" command. 1 Andreas Raab pointed this out in a simple example.…”

Section: The Problemsmentioning

confidence: 96%

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Semantics and Performance Considerations of Kedama, a GUI-based Massively Parallel Programming Language

Ohshima¹

2006

Fourth International Conference on Creating, Connecting and Collaborating Through Computing (C5'06)

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Kedama is a GUI-based parallel programming language, in which the user can construct and modify the program dynamically even when the program is running. The dynamic nature of the system and its non-technical target audience require different consideration on its design tradeoffs; such as fast and separate compilation of scripts, and simpler control structures for parallel execution.Based on the design choice, the previous version of the Kedama system had provided a usable system. However, the previous semantics model, called "pure-SIMD", had some flaws; when a conditional statement is used, the semantics of script calling was not consistent. Also, the performance was unnecessarily degraded because of the sequentialized execution.This paper presents a new semantics model called "predicated SIMD" that addresses the problems. In the predicated SIMD model, a parallel element (called "a turtle") now has a Boolean value called "predicate" that denotes if the turtle is active or not. In a conditional statement, the predicates for the turtles are set property so that the statements can be executed without being sequentialized.With this improvement, the semantics discrepancy is reduced. Also, there is a factor of 20 improvement in micro benchmarks, and a factor of 6 improvement on the overall performance in real examples.

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“…In this case, all of the turtles move downward (heading = 180) by the last "forward by" command. 1 Andreas Raab pointed this out in a simple example.…”

Section: The Problemsmentioning

confidence: 96%

“…Kedama is an end-user friendly, massively parallel programming system [1] [2]. The Kedama system has many features that are suitable for writing particle simulations.…”

Section: Introductionmentioning

confidence: 99%

Semantics and Performance Considerations of Kedama, a GUI-based Massively Parallel Programming Language

Ohshima¹

2006

Fourth International Conference on Creating, Connecting and Collaborating Through Computing (C5'06)

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“…New widgets include a significantly improved particle system (called "Kedama") [10]. The particle system in Etoys lets the user program thousands of objects using the same tile-scripting interface that is used for normal scripting.…”

Section: New Objectsmentioning

confidence: 99%

Etoys for One Laptop Per Child

Freudenberg

Ohshima

Wallace

2009

2009 Seventh International Conference on Creating, Connecting and Collaborating Through Computing

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“…They are shown to the user, they can be changed, and they can change other contents. So, scripts become an active content that enables the users to make their own experiments by not only changing some parameters, but by changing the underlying code of the dynamic systems (e.g., like simulations of epidemics [14]). By playing and experimenting with scripts users have an immersive way to explore a given environment.…”

Section: Introductionmentioning

confidence: 99%

SophieScript - Active Content in Multimedia Documents

Lincke

Hirschfeld

Ruger³

et al. 2008

Sixth International Conference on Creating, Connecting and Collaborating Through Computing (C5 2008)

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Active content in multimedia documents helps the reader to grasp the implications of nonlinear and complex systems that are difficult to understand in a text-based description. The readers are able to make their own experiments by changing the underlying rules of these systems. The multimedia authoring environment Sophie has limited capabilities for authoring active dynamic contents. For that reason we integrated a tile scripting system based on Tweak Etoys in Sophie. In SophieScript scripts can be embedded into the text and the reader changes them via direct graphical manipulation. With the implemented tile scripting system the user can easily create dynamic content and, at the same time, make use of the multimedia and text capabilities of Sophie.

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Kedama: A GUI-Based Interactive Massively Parallel Particle Programming System

Cited by 6 publications

References 6 publications

Semantics and Performance Considerations of Kedama, a GUI-based Massively Parallel Programming Language

Semantics and Performance Considerations of Kedama, a GUI-based Massively Parallel Programming Language

Etoys for One Laptop Per Child

SophieScript - Active Content in Multimedia Documents

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