General planning

[wikfeldt]

This issue is for general discussions and to keep track of progress.

Work plan:

• we work on branches and send pull requests for review from lesson co-developers
• each episode has an issue. Fine-grained todo lists should be created in each episode issue
• we can add/remove/rename episode issues if we decide to change or refactor the lesson structure
• we can indicate that we're working on an episode by self-assigning the corresponding issue

General ideas:

• each episode will have several small code examples for demonstrations and "easy" exercises
• but we also have one main code that we work on throughout the workshop.
• the final version of the main code can be shown already in episode 2 to show its performance and give a flavor of what is to come.
• the main code will be incrementally improved and optimized in episodes 5-8
• ideas for main code: heat equation or miniWeather.
• Heat question probably better because miniWeather is too complex, but it can be left as homework

[wikfeldt]

• decide main code to use throughout workshop
• should the workshop be extended to 3 half-days?
• write episode 1: Introduction and motivation for OpenMP-offloading
• write episode 2: Introduce heat-equation mini-app
• write episode 3: Introduction to GPU architecture CVA
• write episode 4: Profiling
• write episode 5: Target teams construct
• write episode 6: Data transfers
• write episode 7: Optimisation: Reductions, collapse
• write episode 8: Multi-GPU with MPI
• write episode 9: Interoperability with libraries, CUDA/HIP, pass device pointers to functions
• write episode 10: Porting an OpenMP-CPU code to OpenMP-GPU
• write episode 11: Conclusions and outlook

[wikfeldt]

just to keep the ball rolling: tagging @jussienko @csccva and @mabraham to self-assign episodes from the list of issues. Qiang has done some work on his two episodes 5 and 6, George has self-assigned episodes 4 and 7, and I know Mark will be working on some episodes in the coming two weeks (despite the workshop postponement)

[mabraham]

I've got lesson 2 in good shape, introducing a serial mini-app for us to improve. I haven't doing anythign with OpenMP threading in there, but we can do that if we still think it is useful.