on the acceleration of the reconstruction of a very large table 2d

Basically, I got a table 2d 1024 x 1024 (fixed size). What I do:

1. perform an FFT along each line (1024 times)-> it's fast

2. I divided my big table in 8 subtables to take advantage of my 8 cores

3. rebuild my table 2d 1024 x 1024-> it's slow

To perform step 3, I used 'Building the table' vi but also I first initialized and used the vi "replace the sub-table". Unfortunately, it is still very slow. Someone could suggest me a way to speed up the 'reconstruction' of my 2d table, or do you have another solution to use all the cores without split my big table?

Thank you very much.

Hi Adrien,.

Use a loop FOR parallel processing.

Or imitate this automatism of LV using the DataValueReference to work on the same memory in different (loops FOR).

This applies to LV2009 - you note the version of your LV...

Tags: NI Software

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