Find Permutations using perms in MathScript throws memory is full error

I use the perms Mathscript function to find the possible permutations of the numbers to a number in a table.  According to the Help function permanent , he agrees to 15 items or less.  I can feed this function up to 9 items, but when I try 10 I get the error: LabVIEW: memory is full.  I increased virtual memory by the suggestion in why I am getting "memory is full" error KB.

The error occurs when Windows Task Manager reached 628 M no matter what I change my virtual memory.  I have 2 GB of RAM in my computer.  Any suggestions?

Thank you

What is expected. With N = 10, the final matrix will be 10! x 10, or approximately 36Million DBL elements. Each contains 8 bytes, which bears the imprint to ~ 290 MB for a single copy of the matrix of results expected.

Looking at the memory usage of the VI for N = 9, is already 100 MB, so it seems there are about 4 copies of the final table in memory. No wonder that N = 10 is impossible.

I recommend to the instruments in plain LabVIEW (son and loops) with a data type of U8, you will probably be able to go higher than 9.

Remember that 15 is unrealistic, because the dimensions of the matrix are I32, but the size of the array will be N!. This means that you don't have enough lines for example N > 12 anyway.

You have a good reason that you need such huge tables?

Tags: NI Software

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