Full-volume acc/cnt device buffers (~115 MB for the 9.6M-voxel grid) plus
the CUDA context did not fit next to a desktop session that had taken the
T600's 4 GB down to ~190 MB free, so every frame died with cuMemAlloc OOM
and the GUI showed no sar3d picture. The kernel now processes
[gid_begin, gid_end) ranges and the host launches it in 2M-voxel chunks
reusing one ~24 MB buffer pair. Parity vs the reference volumes is
unchanged (max diff 1.3e-6).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
aweandClaude Fable 5
60f6c9e567