1. Local arrangements chair of the OTM Federated conference 2004 and 2005.
  2. Program Co-chair of the 8th Pan-Helenic Conference on Informatics.
  3. Program Chair of the 3rd SEE Conference on eCommerce, Cyprus, 2002.
  4. Program Co-chair of the 1999 International Conference on Parallel Architecture and Compilation Techniques.
  5. General Co-Chair of the 1995 International Conference on Parallel Architecture and Compilation Techniques.
  6. Steering Committee member of the International Conference on Parallel Architecture and Compilation Techniques, 1996-2001.
  7. Local arrangements chair of the IFIP WG 10.3 Working Conference on Architectures and Compilation
  8. Techniques for Fine and Medium Grain Parallelism, 1992.
  9. Finance Chair of the 1993 International Symposium on Computer Architecture.
  10. Program committee member of various international conferences.
  11. Co-Organizer of the 1990 SMU-Lawrence Livermore National Labs SISAL workshop