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Optimize ACC port of atm_advance_acoustic_step_work:3964 #1477

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Optimize ACC port of atm_advance_acoustic_step_work:3964 #1477

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23daad4
Add timer
abishekg7 Jun 29, 2026
7b47977
Optimized a kernel in advance acoustic step at line 3964
Pranay-Reddy-Kommera May 7, 2026
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4 changes: 3 additions & 1 deletion src/core_atmosphere/dynamics/mpas_atm_time_integration.F
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Original file line number Diff line number Diff line change
Expand Up @@ -3961,14 +3961,16 @@ subroutine atm_advance_acoustic_step_work(nCells, nEdges, nCellsSolve, cellStart
end do
!$acc end parallel
else
call mpas_timer_start('advance_acoustic_step_3964')
!$acc parallel default(present)
!$acc loop gang worker collapse(2)
!$acc loop gang worker vector collapse(2)
do iCell=cellStart,cellEnd
do k=1,nVertLevels
rtheta_pp_old(k,iCell) = rtheta_pp(k,iCell)
end do
end do
!$acc end parallel
call mpas_timer_stop('advance_acoustic_step_3964')
end if

!$OMP BARRIER
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