My current main interests are the optimization of MPI-Collective Communication especially with InfiniBand hardware and the optimized parallel implementation of Ab Initio Calculations.

Other interests include:

• Design of Communication Hardware (e.g. Hardware Barrier)
  
• Large Scale Parallel Systems (e.g. BlueGene/L)
  
• Parallel Programing and Application Optimization (e.g. Linpack)
  
• Computer Architectures (CPU Internals, e.g. IBMs Cell Processor)