MPAS-Atmosphere PR list

[mgduda]

Here's a list of open PRs -- along with notes for each PR as needed -- that are required to complete work on the atmosphere/develop-openacc branch. The goal is to merge these PRs in the order given here (with the first listed PR being the first to be merged).

• Added OpenACC directives to WSM6 model, for GPU execution. #938
• Ported update_convection_step1/step2 subroutines. #929
• Added OpenACC directives to Surface Layer model, for GPU excecution  #928
• Added OpenACC directives to Convection and New Tiedtke model, for GPU execution #927
• Update the common physics variables to GPU. #926
• Fix lagged radiation time #925
  • Notes: This PR doesn't involve any OpenACC changes per se, but it corrects an issue with the lagged radiation that is used when running on GPUs

[Pranay-Reddy-Kommera]

@mgduda Below is an updated list of PRs which are needed to be merged into atmosphere/develop-openacc branch.
Merging these PRs would result in all the Physics schemes except NOAH LSM and Microphysics on GPUs.

• 1. Optimized parallel kernels in the scalars/scalars_mono #950
• 2. Port the code snippet above the driver_microphysics call #951
• 3. Port of MPAS_to_Physics to GPUs using OpenACC. #949
• 4. Added OpenACC directives to Convection and New Tiedtke model, for GPU execution #927
• 5. Added OpenACC directives to Surface Layer model, for GPU excecution  #928
• 6. Ported update_convection_step1/step2 subroutines. #929
• 7. Port of GWDO to GPUs using OpenACC. #943
• 8. Port of PBL to GPUs using OpenACC. #944
• 9. Create common variables across cloudiness and radiation on GPU. #945
• 10. Port of Cloudiness to GPUs using OpenACC. #946

Note: I have replaced #926 from the list with #949 . The former computes the MPAS_to_physics_gpu on CPU and updates the variables to GPU. Instead in #949 I am computing the MPAS_to_physics_gpu on GPU and updating the variables to CPU.

[mgduda]

@Pranay-Reddy-Kommera Can we safely close PR #926 if it has been replace by PR #949?

[Pranay-Reddy-Kommera]

@mgduda Yes we can close PR #926.