Test deterministic z9 subtree scheduling#24
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Higher zoom polygon tiles need a deterministic cached parent, but forcing all polygon cache lookups to z6 removes most dynamic cache hits and increases clipping fallback work. Keep the existing dynamic clip cache behavior and instead schedule each z6 parent tile before posting its higher-zoom descendants. This preserves parallelism across z6 clusters while making the ancestor choice deterministic within each cluster. Co-authored-by: Codex <noreply@openai.com>
Write z6-z8 prefix tiles before posting descendant work, then schedule each z9 subtree as a sequential range. This keeps dynamic clip-cache reuse while making parent availability deterministic within each subtree, avoiding the fixed-cache fallback cost seen in PR systemed#892. Co-authored-by: Codex <noreply@openai.com>
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Temporary CI validation branch for deterministic z9 subtree scheduling. This is stacked on the submitted-PR fork master and the z6-cluster scheduler candidate; not intended as an upstream PR body.