How to split and analyze large files

[kozuka32]

I am using an HWS file, but due to its large capacity, I am not able to fully analyze it due to lack of memory. Please tell me how to divide the data and analyze it continuously instead of analyzing it all at once. It would be helpful if you could modify "example HWS Reader A.vi" if possible. I'm sorry.

 

[santo_13]

What is your goal of the analysis?

How large is the file?

[kozuka32]

Hi. Santhosh

thanks for your questions.

1) What is your goal of the analysis?

->For now, the waveform will be displayed within the analyzed time.

2)How large is the file?

->The file is about 100MB.

For example, I would like to analyze 10MB each and display 100MB worth of waveforms in the end.

thank you 

[Yamaeda]

100MB shouldn't be too hard to read and analyze, but unnecessary to plot on a graph. Decimate the data before plotting it.

[kozuka32]

Sorry for the late reply. Thank you for answering.

Originally, I would like to calculate the FFT intensity integrated value for 100MB, not display 100MB. At that time, due to lack of memory, I could only calculate up to 10MB, so I would like to know how to calculate the remaining 90MB continuously. Thank you for your understanding.

[Yamaeda]

Basically, read 1MB, do FFT, repeat 100 times. Average(?) the FFTs.

[kozuka32]

Thank you for the hint. I tried going there right away, but it didn't work. Is it possible for you to write a simple vi?

[jjohn1]

If you are not using 64-bit LabVIEW, and installing it is an option, try installing and using it.  It is easy to hit address space limits in 32 bit LabVIEW when processing large data sets.