Reduce size of candidate nodes in search queue #316
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KonaeAkira
commented
Feb 7, 2026
| #[cfg(target_pointer_width = "32")] | ||
| #[bitfield_struct::bitfield(u32)] | ||
| struct CandidateNode { | ||
| #[bits(26)] |
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Using 26 bits for the parent node index means that the web version can have at most 2^26 (67,108,864) processed nodes. This limit will actually never be reached, because each VisitedNode is 32 bytes, so the 4 GB memory limit will be hit before the 2^26 node count limit.
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Related issue: #292
Reduces the size of
CandidateNode:This is enough for #292 (comment) to avoid OOM on the web version.