| name | build-tornado |
| description | Setup TornadoVM to use with GPULlama3.java. Use this when already on a system with GPUs visible. |
| license | Apache-2.0 |
| metadata | {"author":"TornadoVM Team"} |
Build TornadoVM
Build TornadoVM from source. Available backends: opencl (default), ptx, spirv, cuda, metal. Comma-separated combos allowed (e.g. ptx,opencl but not suggested).
When to Use
| Scenario | Use This Skill? |
|---|
echo $TORNADOVM_HOME does not point to a TornadoVM SDK | Yes |
Prerequisites
- JAVA_HOME is set to jdk 21 or 25
nvidia-smi succeeds (GPUs visible)
Instructions
Step 1: Verify Environment
Run nvidia-smi to confirm you are on a system with GPU access.
Step 2: Locate the Codebase
cd to the TornadoVM repository. If the path is not provided by the user, ask for it. If the path doesn't exist, stop and ask — don't clone or guess.
Step 3: (Optional) Checkout Branch
A single word/arg to this skill is the backend unless the user explicitly calls it a branch (e.g. "on the develop branch"). Only checkout when a branch is explicitly named:
git checkout <branch> && git pull
Step 4: Build
If the backend of choice is not provided by the user, ask for it.
Run the build command:
make BACKEND=<backend>
Step 5: Install
source setvars.sh
Note: this only sets env vars for the current shell. Each new Bash tool call is a fresh shell — re-source setvars.sh before any later tornado/GPULlama3 command in a new call.
Step 6: Verify
tornado --devices
