# 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
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://wamr.gitbook.io/document/wamr-in-practice/features/demo-examples/workload.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.