- Split steady window into 6 equal slots: fp8/fp16/fp32/fp64/fp4 + combined - Each precision phase runs bee-gpu-burn with --precision filter so PowerCVPct reflects single-kernel stability (not round-robin artifact) - Add fp4 support in bee-gpu-stress.c for Blackwell (cc>=100) via existing CUDA_R_4F_E2M1 guard - Weighted TOPS: fp64×2.0, fp32×1.0, fp16×0.5, fp8×0.25, fp4×0.125 - SyntheticScore = sum of weighted TOPS from per-precision phases - MixedScore = sum from combined phase; MixedEfficiency = Mixed/Synthetic - ComputeScore = SyntheticScore × (1 + MixedEfficiency × 0.3) - ECC volatile counters sampled before/after each phase and overall - DegradationReasons: ecc_uncorrected_errors, ecc_corrected_errors - Report: per-precision stability table with ECC columns, methodology section - Ramp-up history table redesign: GPU indices as columns, runs as rows Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
ISO Build
bee ISO is built inside a Debian 12 builder container via iso/builder/build-in-container.sh.
Requirements
- Docker Desktop or another Docker-compatible container runtime
- Privileged containers enabled
- Enough free disk space for builder cache, Debian live-build artifacts, NVIDIA driver cache, and CUDA userspace packages
Build On macOS
From the repository root:
sh iso/builder/build-in-container.sh
The script defaults to linux/amd64 builder containers, so it works on:
- Intel Mac
- Apple Silicon (
M1/M2/M3/M4) via Docker Desktop's Linux VM
You do not need to pass --platform manually for normal ISO builds.
Useful Options
Build with explicit SSH keys baked into the ISO:
sh iso/builder/build-in-container.sh --authorized-keys ~/.ssh/id_ed25519.pub
Rebuild the builder image:
sh iso/builder/build-in-container.sh --rebuild-image
Use a custom cache directory:
sh iso/builder/build-in-container.sh --cache-dir /path/to/cache
Notes
- The builder image is automatically rebuilt if the local tag exists for the wrong architecture.
- The live ISO boots with Debian
live-boottoram, so the read-only medium is copied into RAM during boot and the runtime no longer depends on the original USB/BMC virtual media staying present. - Target systems need enough RAM for the full compressed live medium plus normal runtime overhead, or boot may fail before reaching the TUI.
- The NVIDIA variant installs DCGM 4 packages matched to the CUDA user-mode driver major version. For driver branch
590/ CUDA13.x, the package family isdatacenter-gpu-manager-4-cuda13rather than legacydatacenter-gpu-manager. - Override the container platform only if you know why:
BEE_BUILDER_PLATFORM=linux/amd64 sh iso/builder/build-in-container.sh
- The shipped ISO is still
amd64. - Output ISO artifacts are written under
dist/.