安装 mpi4py 库时出现编译报错，报错信息为：
gcc -pthread -B /root/anaconda3/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/root/anaconda3/include/python3.7m -c _configtest.c -o _configtest.o
_configtest.c:2:10: fatal error: mpi.h: No such file or directory
#include <mpi.h>
^~~~~~~
compilation terminated.
failure.
removing: _configtest.c _configtest.o
error: Cannot compile MPI programs. Check your configuration!!!
sudo apt-get update
sudo apt install libopenmpi-dev
解决掉上面的报错问题，出现下面的
collect2: error: ld returned 1 exit status
failure.
removing: _configtest.c _configtest.o
error: Cannot link MPI programs. Check your configuration!!!
参考
sudo apt install python3-mpi4py （但是不管用，又试了下conda）
conda install mpi4py （通过）
但是pycocotools报错
/overlay/lib/python3.10/site-packages/numpy/core/include -I./common -I/data/anaconda3/envs/sd-webui/include/python3.10 -c ../common/maskApi.c -o build/temp.linux-x86_64-cpython-310/../common/maskApi.o -Wno-cpp -Wno-unused-function -std=c99
gcc: error: ../common/maskApi.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
error: command '/usr/bin/gcc' failed with exit code 1
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for pycocotools
Failed to build pycocotools
有人说 conda install Cython 但我不管用，你们可以试试。
pip3 install "git+https://github.com/philferriere/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI"
最后通过这个装了pycocotools 2.0版本，但要求是pycocotools==2.0.4，不过2.0.4死活不能装起，可以试试2.0版本能不能正常运行。