Type stability issues when using StaticArrays

General Usage Performance
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@rdeits My complete code reads the value for “nelementnodes” from an input text file. The input text file can have a different value for nelementnodes from run to run. Will this approach (value type argument) still work as intended?

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See Performance Tips · The Julia Language.

As long as you create your types outside the function that do the core computation, you are fine.

1 Like
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Sure! As long as your code looks something like:

function main(filename)
  nelementnodes = read_data_from_file(filename)
  long_running_computation(Val(nelementnodes))
end

then you should be fine. There’s a computational cost to constructing a Val from a run-time value, but that cost is only a few hundred nanoseconds and you’re only paying it once per call of long_running_computation, so that should be completely negligible.

1 Like
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Thank you @kristoffer.carlsson !

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Thank you @rdeits !