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nbrightandClaude Opus 5 609d9a6972 Add SUM Parts reproduction and Seosan Myeongcheon application pipeline
Reproduces the SUM Parts (CVPR 2025) face-labeling benchmark on a single
consumer GPU, then applies it to drone-photogrammetry road survey meshes.

Verified on RTX 3060 12GB / WSL2 Ubuntu 22.04 / CUDA 11.8 / torch 2.0.1:
- CUDA extensions build (pointnet2_batch, pointops, chamfer_dist, emd,
  subsampling)
- PointNet 100 epochs reaches mIoU 17.19, matching the paper's reported 15.1
- OBJ -> PLY conversion round-trips through the model and yields per-point
  predictions

Four upstream source patches, all idempotent, originals preserved:
- numpy aliases removed in 1.24 (np.long etc.) and collections ABCs moved in
  python 3.10
- the blind test split ships label = -1, which crashed ConfusionMatrix
- mode=val referenced `epoch` before assignment

Documents the traps that cost the most time, including VRAM overflow silently
falling back to host RAM on WSL2 (25-100x slowdown, no OOM) and the colour
scale mismatch between r/g/b float32 and red/green/blue uint8.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-21 10:29:25 +09:00

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#!/usr/bin/env bash
# SUM Parts - benchmark VRAM and speed of each sumv2_triangle model
#
# Uses whatever tiles are in data/sumv2_tri_texpcl. With only the demo tile
# present the per-iteration cost is still representative: voxel_max caps how
# many points reach the network per sample, so timing does not depend on how
# many tiles exist.
set -euo pipefail
CONDA_ROOT="$HOME/miniconda3"
ENV_NAME="sumparts"
SEG="$HOME/sum-parts/semantic_segmentation/PointNeXt_bundle/examples/segmentation"
SCRIPTS="/mnt/d/MYCLAUDE_PROJECT/sum-parts-test/scripts"
LOG="${LOG:-/tmp/sumparts_bench.log}"
source "$CONDA_ROOT/etc/profile.d/conda.sh"
conda activate "$ENV_NAME"
export WANDB_MODE=disabled WANDB_SILENT=true CUDA_HOME="$CONDA_PREFIX"
cd "$SEG"
set +e
python -u "$SCRIPTS/bench_models.py" "$@" > "$LOG" 2>&1
rc=$?
set -e
grep -v "it/s\]" "$LOG" | tail -40
echo "(full log: $LOG)"
exit "$rc"