> For the complete documentation index, see [llms.txt](https://wamr.gitbook.io/document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wamr.gitbook.io/document/wamr-in-practice/features/demo-examples/workload.md).

# 128-bit SIMD

All workloads have similar requirement of software dependencies, including **emsdk** and **binaryen**

> There might be slight differences when using MacOS and other Linux distro than Ubuntu. This document targets Ubuntu 20.04 as an example.

### Installation instructions

use [preparation.sh](https://github.com/TianlongLiang/wasm-micro-runtime/blob/main/samples/workload/preparation.sh) to install all dependencies before compiling any workload. Or use [*vscode DevContainer*](https://github.com/TianlongLiang/wasm-micro-runtime/blob/main/.devcontainer/README.md)

The script installs below software:

* **emsdk**. Refer to [the guide](https://emscripten.org/docs/getting_started/downloads.html). Don't forget to activate emsdk and set up environment variables. Verify it with `echo ${EMSDK}`. Please be sure to install and activate the building of 3.0.0

```bash
$ cd /opt
$ git clone https://github.com/emscripten-core/emsdk.git
$ cd emsdk
$ git pull
$ ./emsdk install 3.0.0
$ ./emsdk activate 3.0.0
$ echo "source /opt/emsdk/emsdk_env.sh" >> "${HOME}"/.bashrc
```

* **binaryen**. Install [latest release](https://github.com/WebAssembly/binaryen/releases/download/version_111/binaryen-version_111-x86_64-linux.tar.gz) to */opt/binaryen*

```bash
$ wget https://github.com/WebAssembly/binaryen/releases/download/${BINARYEN_VER}/${BINARYEN_FILE}
$ tar zxf ${BINARYEN_FILE} -C /opt
$ ln -sf /opt/binaryen-${BINARYEN_VER} /opt/binaryen
```