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Re: Interpolate whole array instead of looping through elements [message #94326 is a reply to message #94325]

Tue, 11 April 2017 12:07

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

On Tuesday, April 11, 2017 at 12:18:30 PM UTC-4, liam....@gmx.co.uk wrote:
...
> out_vals[j,i] = bilinear(temp[*,*,j,i],ival,jval)
...
> Is there any method where one or both of the loops can be removed, and the interpolation can be carried out on the entire array (i.e. on the time and level dimensions at the same time)? I've tried to think of a quicker method, but I'm stumped.

As long as TEMP[*,*,j,i] has a lot of elements, you won't really get much of a speed-up removing the FOR loops. Try timing this loop,

for i = 0, ntime-1 do begin
for j = 0, nlev-1 do begin
DUMMY = 1
endfor
endfor

However long this loop takes to run, is the amount of time you will save by removing the loop in your code.

Craig

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[Message index]

		Interpolate whole array instead of looping through elements By: liam.steele on Tue, 11 April 2017 09:18
		Re: Interpolate whole array instead of looping through elements By: Craig Markwardt on Tue, 11 April 2017 12:07
		Re: Interpolate whole array instead of looping through elements By: liam.steele on Wed, 12 April 2017 16:50
		Re: Interpolate whole array instead of looping through elements By: wlandsman on Wed, 12 April 2017 21:10
		Re: Interpolate whole array instead of looping through elements By: Markus Schmassmann on Thu, 13 April 2017 05:21
		Re: Interpolate whole array instead of looping through elements By: liam.steele on Thu, 13 April 2017 10:02

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