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Merged
KakaruHayate merged 1 commit into from
Aug 16, 2026
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docs: Windows+CUDA toolchain notes from a successful local CUDA build #11

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17 changes: 15 additions & 2 deletions BUILDING.md
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Expand Up @@ -62,12 +62,25 @@ brew install cmake ccache
# CUDA 12.6 supports Visual Studio 2022 / MSVC 193x.
```

> **Windows + CUDA toolchain notes (from local builds):**
> - nvcc rejects host toolchains newer than it supports. When a newer Visual
> Studio (e.g. VS 2026 / MSVC 19.5x) is installed it is NOT safe to assume it
> works with the installed CUDA — use a VS 2019 Build Tools (MSVC 14.29)
> and configure with the matching generator, e.g.
> `cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_CUDA_ARCHITECTURES=75 ...`
> - If several CUDA toolkits are installed, the MSBuild `CUDA <ver>.targets`
> integration picks the newest via the `CUDA_PATH_V<major>_<minor>` env var.
> Pin the one you intend to use, e.g. set `CUDA_PATH_V13_0` to the v11.6 path
> when building with CUDA 11.6, otherwise nvcc 13 + MSVC 14.29 hits
> `__cudaLaunch` macro breakage (`error C4002`).
> - CI reference: `ubuntu-22.04` / `windows-2022` + CUDA 12.6.3.

## Quick start

```bash
# Clone
git clone https://github.com/KakaruHayate/game_ggml_cli.git
cd game_ggml_cli
git clone https://github.com/KakaruHayate/game.cpp.git
cd game.cpp

# Configure with CPU backend
cmake -B build -DCMAKE_BUILD_TYPE=Release \
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