Mojo-SDK安装

运行环境：windows11+wsl2（ubuntu1804）
官方推荐：wsl2（ubuntu2204），我下面是wsl2（ubuntu1804），发现有些问题，不知道是不是ubuntu版本问题，如果报错可参考如下命令行升级：

# 确保版本可升级，需要Prompt=lts
sudo nano /etc/update-manager/release-upgrades
# 使用CTRL+S保存，然后CTRL+X退出nano。
# 升级系统组件并检查软件更新
sudo apt update
# 更新软件
sudo apt upgrade -y
# 更新发行版
sudo do-release-upgrade

截至20230909，windows,mac系统暂时不支持

由于每个人的设备系统环境不一致，下面步骤仅供参考。

step1:

Install VS Code, the WSL extension, and the Mojo extension.

step2:

Install Ubuntu 22.04 for WSL and open it.

step3:

In the Ubuntu terminal, install the Modular CLI:
The script requires root or sudo privileges to run.

curl https://get.modular.com | \MODULAR_AUTH=mut_b2c22398bcc949a6a803dfe01d09fc06 \sh -

可能会出现报错：

modular: error while loading shared libraries: libtinfo.so.6: cannot open shared object file: No such file or directory

解决（这里优点乱，试了好几种方法，后面莫名其妙，运行这个命令就没报错了）：

sudo apt install libevent-dev ncurses-dev build-essential bison pkg-config

继续执行上面脚本，出现如下 not found报错

Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
modular: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by modular)
modular: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by modular)
modular: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by modular)

继续解决上述报错：
检查版本：

(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ strings /lib/x86_64-linux-gnu/libc.so.6 |grep GLIBC_
GLIBC_2.2.5
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_2.13
GLIBC_2.14
GLIBC_2.15
GLIBC_2.16
GLIBC_2.17
GLIBC_2.18
GLIBC_2.22
GLIBC_2.23
GLIBC_2.24
GLIBC_2.25
GLIBC_2.26
GLIBC_2.27
GLIBC_PRIVATE

解决方案：添加一个高级版本系统的源，直接升级libc6.
编辑源：

sudo vi /etc/apt/sources.list

添加高版本的源

deb http://th.archive.ubuntu.com/ubuntu jammy main    #添加该行到文件

运行升级

sudo apt update
sudo apt install libc6

再次检查版本

(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ strings /lib/x86_64-linux-gnu/libc.so.6 |grep GLIBC_
GLIBC_2.2.5
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_2.13
GLIBC_2.14
GLIBC_2.15
GLIBC_2.16
GLIBC_2.17
GLIBC_2.18
GLIBC_2.22
GLIBC_2.23
GLIBC_2.24
GLIBC_2.25
GLIBC_2.26
GLIBC_2.27
GLIBC_2.28
GLIBC_2.29
GLIBC_2.30
GLIBC_2.31
GLIBC_2.32
GLIBC_2.33
GLIBC_2.34
GLIBC_2.35
GLIBC_PRIVATE

再次运行step3脚本，没有再报错

step4：

Install the Mojo SDK:

modular install mojo

报错：

Testing `MODULAR_HOME=/home/dongyongfei786/.modular`
* `/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/bin/mojo`...
TEST: `mojo --help`... ERROR
Traceback (most recent call last):File "/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/scripts/post-install/self-test.py", line 342, in <module>main()File "/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/scripts/post-install/self-test.py", line 338, in maintester.test(args.test_jupyter)File "/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/scripts/post-install/self-test.py", line 269, in testself.test_mojo_help()File "/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/scripts/post-install/self-test.py", line 94, in test_mojo_helpassert "mojo" in self.run_mojo("--help")[0]
AssertionError
modular: error: failed to run python:

但是能正常查看版本，安装成功了吗？应该是bug

(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ modular --version
modular 0.1.4 (6b54d308)

貌似没报错了

(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ mojo  # 这里应该还是有点问题的，没有进入类似python的窗口
(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ mojo --version
mojo 0.2.1 (64d14e85)
(torch) dongyongfei786@DESKTOP-3QNKDLL:~$

补充：20230910
重新执行上面流程，莫名其妙安装成功（可能是升级sudo apt update，升级了一些依赖性）

🔥 Mojo installed! 🔥Now run the following commands if you are using bash:echo 'export MODULAR_HOME="/home/dongyongfei786/.modular"' >> ~/.bashrc
echo 'export PATH="/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/bin:$PATH"' >> ~/.bashrc
source ~/.bashrcIf you are using ZSH, run the following commands:echo 'export MODULAR_HOME="/home/dongyongfei786/.modular"' >> ~/.zshrc
echo 'export PATH="/home/dongyongfei786/.modular/pkg/packages.modular.com_mojo/bin:$PATH"' >> ~/.zshrc
source ~/.zshrcThen enter 'mojo' to start the Mojo REPL.For tool help, enter 'mojo --help'.
For more docs, see https://docs.modular.com/mojo.(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ MOmojo
MOmojo: command not found
(torch) dongyongfei786@DESKTOP-3QNKDLL:~$ mojo
Welcome to Mojo! 🔥
Expressions are delimited by a blank line.
Type `:mojo help` for further assistance.
1>

截个图记录一下：

step5.

Open the Ubuntu workspace in VS Code with this:

code .

Step6

Get started with Hello World!
https://docs.modular.com/mojo/manual/get-started/hello-world.html
貌似没报错了，可下载example：https://github.com/modularml/mojo/tree/main/examples

(torch) dongyongfei786@DESKTOP-3QNKDLL:/mnt/g/dongyongfei786/mojo-tutorials/mojo/examples$ mojo hello.🔥
Hello Mojo 🔥!
9
6
3
(torch) dongyongfei786@DESKTOP-3QNKDLL:/mnt/g/dongyongfei786/mojo-tutorials/mojo/examples$ ls
LICENSE    deviceinfo.mojo  hello     hello_interop.mojo  matmul.mojo  nbody.mojo  pymatmul.py  simple_interop.py
README.md  docker           hello.🔥  mandelbrot.mojo     memset.mojo  notebooks   reduce.mojo
Hello from Python!
I can even print a numpy array:  [1 2 3]
(torch) dongyongfei786@DESKTOP-3QNKDLL:/mnt/g/dongyongfei786/mojo-tutorials/mojo/examples$ mojo mandelbrot.mojo
Number of hardware cores: 12
Vectorized: 23.953908999999999 ms
Parallelized: 3.572031 ms
Parallel speedup: 6.7059633581007558
(torch) dongyongfei786@DESKTOP-3QNKDLL:/mnt/g/dongyongfei786/mojo-tutorials/mojo/examples$