perf: use 64-bit words in bitpacked Life example - #1385
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Add a flat 64-bit implementation and make it the example default. This halves the packed-word loop count while retaining the 32-bit modes for comparison. Generated with Codex (OpenAI) https://openai.com/codex/ Co-Authored-By: Codex <codex@openai.com>
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Summary
flat64the default algorithmflatand 2Dparallelmodes for comparisonOn a 320x200 random grid for 1,000 generations (JVM backend), warmed runs were:
flat: 7.63 Mcells/sflat64: 13.15-13.16 Mcells/s (+72%)Validation
perl -c examples/life_bitpacked.plmakewas intentionally stopped at the user's request because this change is Perl-only.