Sherry Chang's NAS Home Page

Projects

• Notes on Optimization and Parallelization
  • Performance Profiling and Optimization on the SGI Origins
  • Parallelization of Codes on the SGI Origins

  If you have access to NAS internal web site: in.nas.nasa.gov, you will be able to view the following documents as well.

• CPR
  • An Early Experience on Job Checkpoint/Restart - Working with SGI Irix OS and the Portable Batch System
  • CUG 2001 Presentation Slides and Paper
  • A Follow-up on Job Checkpoint/Restart - Working with SGI Irix OS and the Portable Batch System
• Performance Comparisons
  • Comparison of the Performances of various parallel versions (apo, omp, mlp) of a Poisson Solver program on Chapman
  • Illustration and Comparison of Three Similar Versions of MLP Using a Poisson Solver as an Example
  • Testing the OVERFLOW MPI and MLP Codes
  • OpenMP Microbenchmarks Results
  • LLCbench/Cachebench Results
  • LLCbeench/blasbench Results
  • Lmbench Results
  • Optimization of the RGAS Code on the Origins
• Others
  • Linux Info
  • Information of Various Codes Running on NAS Systems
  • Temporary Systemsdocs for Cray X1 (They will be moved to the NAS Systemsdocs area in the near future
    • X1 home page
    • X1 hardware
    • X1 software