chore(bench): add TPC-H harness and GPU/MIG placement - #1738

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aocsa wants to merge 7 commits into

sirius-db:devfrom

aocsa:codex/tpch-mig-benchmark-harness

Commits on Sep 9, 2026

chore(bench): TPC-H q01/q06 harness, DuckDB oracle and one-CN-per-GPU launcher

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bench(tpch): ship all 22 queries, scale q11 by SF, compare every run

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bench(tpch): make q11's order total with ps_partkey as the tie-break

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docs(bench): how to make the FE compute a CTE once (cbo_cte_reuse_rate = 0)

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bench(cluster8): GPU_DEVICES override so N CNs can share one GPU
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bench(cluster8): MIG_DEVICES places each CN on a MIG instance via CUDA_VISIBLE_DEVICES
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docs(bench): state distributed runtime prerequisites
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