gb10-blackwell: env-gated Blackwell int8 MMA for Q1_0/Q2_0 weights on DGX Spark#79

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Commits on Jul 16, 2026

gb10-blackwell: bootstrap phase 0 (remotes wired, GB10-PATCHES.md)

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gb10-blackwell: phase 1 status (build done, baseline captured, ncu blocked)

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gb10-blackwell: phase 2.4 + 3.0 status; honest no-perf-delta framing

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gb10-blackwell: phase 3.1b-3.4 status; blackwell kernel segfault FIXED, perf regression exposed

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gb10-blackwell: phase 3.5 opus perf-gap diagnosis captured

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gb10-blackwell: phase 3.6 measured lifts (208 -> 470 +2.25x; patch #3 no-op)

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gb10-blackwell: phase 3 shippable — pp512 692 tok/s (~79.5% cuBLAS), 3.5 GB VRAM

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gb10-blackwell: phase 3.9 + phase 4 added to ledger; ship-ready summary

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gb10-blackwell: phase 3.9 cp.async attempt documented — failed 750-tok/s gate

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gb10-blackwell: phase 4 SHIP conclusion — env-gated, off by default

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gb10-blackwell: sync GB10-PATCHES.md git refs to current HEAD 102e97b74

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Commits on Jul 20, 2026

gb10-blackwell: drop MMVQ_PARAMETERS_BLACKWELL per reviewer feedback
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