First steps with OpenACC

• What is OpenACC?
• similar to OpenMP: Intro by NVIDIA
  
• more general than OpenMP
• placement of data (host | accel.) has to adressed (Quick Reference Card ; 2.0)
  
• Data movement example (download)
  
• Skalar product example (download)
  

• General Intro, Quick Reference Card (update: Makefile with profiling)
  
• What to read first:

• Michael Wolfe: Getting started guide, kernels vs. parallel, web-seminar (1,2)
  
• Rob Farber: First steps, profiling and improving; Phi vs. CUDA
•                     OpenCL vs. CUDA vs. OpenACC (video)
  
• Mark Harris; Intro, Part1 , Part2, Part3
  
• More: Maximizing Performance
• PGI-Documentation (profiler)

• PGI: 
• compilers: pgcc, pgfortran (OpenACC is not supported for C++)
• see §7 in manual for OpenACC directives. 
• compiler options:  pgcc -help
  
• Profiling: pgcollect, pgprof
• Debugger: pgdbg
• Info in Accelerator: pgaccelinfo
  
• CAPS (out of business June 2014): 
• Workbench, General Intro, Quick Reference Card
• Examples by CAPS
• web-seminars by CAPS