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Copilot AI commented Dec 4, 2025

  • Analyze sco*.F files to identify optimization opportunities
  • Optimize scortho3.F (engine) - use HYPOT intrinsic for norm calculations
  • Optimize scortho31.F (engine) - use HYPOT intrinsic for norm calculations
  • Optimize scoor431.F - use HYPOT intrinsic for norm calculations
  • Optimize scortho3.F (starter) - use HYPOT intrinsic for norm calculations
  • Optimize scortho31.F (starter) - use HYPOT intrinsic for norm calculations
  • Optimize scoor3.F (starter) - use HYPOT intrinsic for norm calculations
  • Optimize scoor43.F - use HYPOT intrinsic for norm calculations
  • Build and test the changes - all files compile successfully

Summary

Successfully optimized 7 sco*.F files by replacing manual norm calculations with HYPOT intrinsic:

  • Files changed: 7 (4 engine, 3 starter)
  • Norm calculations optimized: 20
  • Benefits: Better numerical accuracy, potential performance improvements, cleaner code
  • Validation: Both engine and starter compile successfully without errors
Original prompt

Can you have a look at sco*.F files?
I would like to look for optimization opportunities. In particular by using intrinsic fuctions instead of home made code snippet, and array operations instead of hand-made loops.


💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

Copilot AI and others added 8 commits November 27, 2025 22:55
* Initial plan

* Fix MPI type inconsistencies in SPMD wrapper functions

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
…#112)

* Initial plan

* Fix spmd_wait intent: change request from intent(in) to intent(inout)

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
* Initial plan

* Clean up spmd_wait.F90 - remove duplicate separator lines

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
* Initial plan

* Fix 2D array dimension mismatch in spmd_send.F90

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
#118)

* Initial plan

* Add missing non-MPI fallback paths for scalar allgatherv functions

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
* Initial plan

* Fix 2D array dimension ordering in spmd_recv.F90 to match spmd_send.F90

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
* Initial plan

* Fix inconsistent local variable declarations in spmd_*pack.F90

Co-authored-by: laurent-altr <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: laurent-altr <[email protected]>
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2 participants