#536 CONGRID with cubic keyword EXTREMELY slow

closed-fixed
nobody
None
5
2013-05-25
2013-04-30
Martin Svec
No

GDL vs. IDL

congrid(dist(200,200),1600,1600,cubic=-0.5)

5sec vs. 0.1sec

Discussion

  • giloo

    giloo - 2013-05-23

    Thanks for this return.
    CONGRID uses INTERPOLATE and... interpolate loops are done in column-major, clearly not a good idea with C++. A patch will be provided in the future.

     
  • giloo

    giloo - 2013-05-24

    should be cured. loops were not the only culprits, by far.
    Please test.

     
  • Martin Svec

    Martin Svec - 2013-05-24

    Just compiled and works like a charm, thanks!

     
  • giloo

    giloo - 2013-05-25
    • status: open --> closed-fixed
     

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No, thanks