Switch user instructions to install iree-turbine from PyPI. (#438)

Progress on #294 and
#359.

Now that a new release of `iree-turbine` is available
(https://pypi.org/project/iree-turbine/#history,
https://github.com/iree-org/iree-turbine/releases/tag/v2.5.0, we can
drop the requirement to use source builds or nightly packages.
Developers will still likely want to use the latest versions of
`iree-turbine`, `iree-compiler`, and `iree-runtime`, and that is what
the CI jobs are testing. We could also add separate CI jobs that use
stable versions of each package.

docs/model_cookbook.md

@@ -165,18 +165,13 @@ tokenizer_config.json: 100%|█████████████████
 
 Setup (from [README.md](../README.md)):
 
-* TODO: this could be replaced with `pip install iree-turbine` or
-  `pip install sharktank` at some point. For now these are dev packages.
-
 ```bash
 # Setup venv.
 python -m venv --prompt sharktank .venv
 source .venv/bin/activate
 
-# Install requirements.
+# (Optional) Install PyTorch for CPU only, to save on download time.
 pip install -r pytorch-cpu-requirements.txt
-pip install -f https://iree.dev/pip-release-links.html --src deps \
-  -e "git+https://github.com/iree-org/iree-turbine.git#egg=iree-turbine"
 
 # Install local projects.
 pip install -r requirements.txt -e sharktank/ shortfin/

docs/nightly_releases.md

@@ -69,11 +69,6 @@ source 3.11.venv/bin/activate
 # Install 'sharktank' package from nightly releases.
 python -m pip install sharktank -f https://github.com/nod-ai/SHARK-Platform/releases/expanded_assets/dev-wheels
 
-# Install iree-turbine from source
-# TODO(#294): publish newer iree-turbine package so this isn't necessary.
-python -m pip install -f https://iree.dev/pip-release-links.html --src deps \
-  -e "git+https://github.com/iree-org/iree-turbine.git#egg=iree-turbine"
-
 # Install some other dependencies.
 # TODO(#294): list these as "dependencies" in `pyproject.toml` or make optional?
 python -m pip install gguf numpy huggingface-hub transformers datasets \
@@ -90,8 +85,8 @@ deactivate
 
 ```bash
 # Set up a virtual environment to isolate packages from other envs.
-python3.12 -m venv 3.12.venv
-source 3.12.venv/bin/activate
+python3.11 -m venv 3.11.venv
+source 3.11.venv/bin/activate
 
 # Install 'shortfin' package from nightly releases.
 python -m pip install shortfin -f https://github.com/nod-ai/SHARK-Platform/releases/expanded_assets/dev-wheels
@@ -102,3 +97,28 @@ python -c "import shortfin as sf; print('Sanity check passed')"
 # Deactivate the virtual environment when done.
 deactivate
 ```
+
+## Installing newer versions of dependencies
+
+To install the `iree-turbine` package from the latest source:
+
+```bash
+python -m pip install --src deps \
+  -e "git+https://github.com/iree-org/iree-turbine.git#egg=iree-turbine"
+```
+
+To install the `iree-compiler` and `iree-runtime` packages from nightly
+releases:
+
+```bash
+python -m pip install -f https://iree.dev/pip-release-links.html --upgrade \
+  iree-compiler iree-runtime
+```
+
+To install all three packages together:
+
+```bash
+python -m pip install -f https://iree.dev/pip-release-links.html --upgrade \
+  iree-compiler iree-runtime --src deps \
+  -e "git+https://github.com/iree-org/iree-turbine.git#egg=iree-turbine"
+```