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问题：描述问题

pip install mpi4py 报错如下：

/home/daiwenbin/anaconda3/envs/chatglm3_multi/compiler_compat/ld: /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi.so: undefined reference to `opal_list_t_class'collect2: error: ld returned 1 exit statusfailure.removing: _configtest.c _configtest.oerror: Cannot link MPI programs. Check your configuration!!![end of output]note: This error originates from a subprocess, and is likely not a problem with pip.ERROR: Failed building wheel for mpi4py
Failed to build mpi4py
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (mpi4py)

解决方法：

需要把/home/daiwenbin/anaconda3/envs/chatglm3_multi/compiler_compat/ld这个库删除掉，才可以。为了不影响以后的其他程序，建议先备份，执行以下代码。

cp /home/daiwenbin/anaconda3/envs/chatglm3_multi/compiler_compat/ld /home/daiwenbin/anaconda3/envs/chatglm3_multi/compiler_compat/ld.backup

然后再删除：

rm /home/daiwenbin/anaconda3/envs/chatglm3_multi/compiler_compat/ld

就可以安装mpi4py了。