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initiate porting to DO CONCURRENT loops? #25

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p-costa opened this issue Aug 20, 2021 · 1 comment

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p-costa commented Aug 20, 2021

except for those with reductions (to be supported by the next standard anyway), most loops could be easily ported.

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p-costa commented Aug 20, 2021 •

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N.B. gfortran does not support yet F2018's locality clauses, so I need to do something like:

 #ifdef _LOCALITY_DO_CONCURRENT
     do concurrent (i=lo(1):hi(1),j=lo(2):hi(2),k=lo(3):hi(3)) &
     default(none) local(i,j,k) shared(up,vp,wp,p,dxf,dyf,dzf,dt)
 #else
     do concurrent (i=lo(1):hi(1),j=lo(2):hi(2),k=lo(3):hi(3))
 #endif

to support the current GNU implementation too. EDIT: a __GFORTRAN__ macro seems more appropriate in that case.

p-costa changed the title ~~initiate porting to DO CONCURRENT loops~~ initiate porting to DO CONCURRENT loops?

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optimize and profile OpenMP implementation #26

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