[💡]: The running speed of delta_pressure

[cccccoldrun]

Describe the functionality you are requesting, linking any relevant usage or previous implementations in the python ecosystem or otherwise.

Hello developers, here I am again, after you guys fixed the delta_pressure bug, it seems that its speed of operation has dropped drastically. I have a 200200300 (time,lat,lon) array about the pressure, in NCL it can be calculated in about 1 minute, while in Python this seems to take a long time.

Is this a request for functionality that was previously in NCL?

Yes

Additional context

No response

[kafitzgerald]

Thanks for the the report!

Just to clarify, was this slow down from NCL to GeoCAT or GeoCAT (before the fix) to GeoCAT (after the fix) or both? Regardless, we can take a look, but this would be useful context if you have it.

[cccccoldrun]

Hello:
After testing, the GeoCAT (after the fix) is slower than NCL, the results of the GeoCAT (before the fix) were not tested, and my test is as follows:
NCL code and result:


NCL finished this test using 3s.

Python code and result:

while Python spends 524s, if the pressure level is incremental， it will spend more time