Qwen3.5 35B (3B active)

User reports 8 t/s with Qwen3.5 35B Q2 on an RTX 4060 Ti 8GB, with no CUDA device selected. Setup is llama.cpp with a Q2 GGUF quant; the user notes VRAM usage was 3000MB/8k and that the run had no CUDA device selected. The user is troubleshooting a cuBLAS crash and asks how to cleanly uninstall and reinstall llama.cpp with CUDA 12, and whether CUDA would improve generation speed.