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S-parameter max size or memory size limitation #48

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buenoshun opened this issue Jul 7, 2024 · 2 comments
Open

S-parameter max size or memory size limitation #48

buenoshun opened this issue Jul 7, 2024 · 2 comments

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@buenoshun
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There was a topic already on sourceforge, this mirrors it here.
https://sourceforge.net/p/qucs/discussion/311049/thread/ded7d8c9/

Either the S-parameter file parser or the qucs simulator has a memory or file size limit.
If I try to import anything larger than maybe 60MBytes S-parameter file, the simulator crashes with an error.
For professional simulations in digital electronics, we need to chain together multiple S-par files that are 32 ports each, having maybe 4000 samples, that is more than 500MBytes. If we insert 4 Spar files, each being 600MBytes, that is 2.4GBytes.

Typical error message:
line 500880: memory exhausted
checker error, found 6 options
checker error, option s' occurred 2x checker error, option s' occurred 2x

When releasing a new version of QUCS, please increase this limitation, to allow up to 1GBytes S-parameter files each, or 3GBytes or more total for all S-par files in the same schematic combined.

@felix-salfelder felix-salfelder transferred this issue from Qucs/qucs Jul 8, 2024
@felix-salfelder
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Moved to Qucsator. looks similar to #42.

@felix-salfelder
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#42 is about format, this one is about size.

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