Concatenate across rows of 2D Array of strings into 1D, NO delimiter

[airalex1919]

Sounds good. Thanks for the input mcduff! Much appreciated.

[airalex1919]

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@mcduff wrote:

PS Your timing comparison is not good, run each method without any others. Yes LabVIEW can do tasks in parallel, but you cannot predict the order.

mcduff

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Thanks for the suggestion, but in what way is the order not predicted? I thought each branch will execute in parallel (essentially like a separate thread, unless I'm mistaken), and the data dependency will ensure they are fired off at the same time. Keep in mind I'm not looking for micro/nano second precision. 

The timing results I have so far are consistently proportional to each other.

[mcduff]

The OS determines the order, some may run twice before another one. My first solution is slightly faster than a simple concatenate on my computer, but not much. See below. (Old version attached)

[mcduff]

Also, displaying the data takes time, only 1 UI thread that all three loops need to share. Do not include update a display in your benchmark.

[airalex1919]

I thought you might say that it was related to the OS, and CPU time distribution. That does make sense, I agree. Thanks!

[airalex1919]

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@mcduff wrote:

Also, displaying the data takes time, only 1 UI thread that all three loops need to share. Do not include update a display in your benchmark.

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This is something I never realized, but makes sense. Thanks for the tip!

[mcduff · Accepted solution]

So if you are concerned about memory and speed and are starting with 1-d arrays, use the simple concatenate, you will use less memory, and it will be faster. It takes time to make a new 2d array, allocate memory for it, transpose it, etc. If you are already starting with a 2d array then use the 1st method I posted, slightly faster, and will work with any number of rows.

good luck

mcduff