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  • Validation Manager for Models
    Develop an integrated, flexible and generic syntactic validation framework for models (e.g. Esterel or SyncCharts).
  • SCCharts compiler validation with Esterel
    Automate the validation of the SCCharts compiler using the Esterel simulation.
  • Transformation from SCCharts to Esterel [possibly also Master Topic]
    Develop a transformation in Xtend2 to generate Esterel code for SCCharts.
  • Hardware Synthesis from SCCharts to FPGA [possibly also Master Topic]
    Use the circuit-based code generation to produce code for FPGAs
  • Automatic documentation generation [possibly also Master Topic]
    Develop an automatic SCCharts documentation system
  • Optimizations for the SCCharts compiler [possibly also Master Topic]
    Profile the actual SCCharts compiler and apply optimizations
  • Multi-core SCCharts compiler [possibly also Master Topic]
    Implement the possibility to use more than one core to compile large SCCharts
  • Adding dataflow to SCCharts [possibly also Master Topic]
    Add dataflow to SCCharts 

PRETSY / PRETSY2

  • Real-time extensions for SCCharts [possibly also Master Topic]
    Make the timing instructions delay_until und exception_on_expire of the FlexPRET processor available in SCCharts.
  • See also Semantics and Synchronous Languages: Adding dataflow to SCCharts

Miscellaneous Topics

  • Developing an Info Screen
    Info screens are screens that present data in ways that can be easily understood. This includes static data (project description graphics, members of a team, ...) as well as dynamically aggregated data (bug statistics, automatic build overviews, ...). This topic is about developing such an info screen for our group and making it easily configurable.

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Master Topics

(see also Bachelor Topics for potentially expansible topics)

Graph Layout

  • Layering Algorithms
    Develop an alternative algorithm for the layer assignment problem used in the layer-based approach to graph layout. The algorithm shall be extended to consider the number of edge crossings and an optimal aspect ratio.
  • Node Placement
    Develop a new node placement algorithm that finds a good balance between keeping edges straight and keeping the drawing from getting too big.
  • Compound Graph Layout
    Design and implement new concepts for computing layer-based layouts of compound graphs. The main focus shall be on maintainability: ensuring that the implementation can be kept working over the years.
  • Force Based Drawing with Port Constraints
    Develop methods for integrating port constraints in force-based drawing approaches. The resulting node placement shall be evaluated using an edge router such as libavoid on the model library of Ptolemy.
  • Combining Forces and Layers
    Design and implement a layout algorithm that combines the force-based and the layer-based approaches. The first three phases of the layer-based approach shall be replaced by a node distribution computed with a force-based approach.

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  • Quartz
    Integrate the synchronous Quartz language into KIELER for validation purposes and teaching.
  • Implementation of a priority-based compilation approach
    Implement the SyncCharts priority-based compilation approach into the SCCharts compiler chain.
  • Curing Schizophrenia in SCCharts
    Develop new synchronizer to handle schizophrenia properly (e.g. depth join).
  • Detecting tick boundaries in SCCharts
    Implement an algorithm that detects tick boundaries (in concurrent) threads and therefore improves the scheduling
  • Preserving concurrency/parallelism for multi-core 
    Evaluate possibilities to preserve parallelism in SCCharts.Multithreaded/Multicore execution of SCCharts (see below PRETSY/PRETSY2)
  • Railway 2.0
    Design a new and modern hardware controlling (Version 4) for the railway installation.

PRETSY / PRETSY2

  • Multithreaded/Multicore execution of SCCharts
    Evaluate possibilities to preserve parallelism in SCCharts, implement mapping for (fine grained) multithreading and multicore
    based on the FlexPRET processor.