怎么检查检查 MPI 的库路径是否已经添加到 LD_LIBRARY_PATH 或者 PATH 环境变量中

您可以使用以下命令检查 MPI 的库路径是否已经添加到 LD_LIBRARY_PATH 环境变量中：

echo $LD_LIBRARY_PATH |grep -q /path/to/mpi/lib && echo "MPI library path is already added to LD_LIBRARY_PATH" || echo "MPI library path is not added to LD_LIBRARY_PATH"

或者可以使用以下命令检查 MPI 的库路径是否已经添加到 PATH 环境变量中：

echo $PATH |grep -q /path/to/mpi/bin && echo "MPI binary path is already added to PATH" || echo "MPI binary path is not added to PATH"

请将 /path/to/mpi/lib 和 /path/to/mpi/bin 分别替换为 MPI 的实际库路径和二进制路径。如果输出提示“MPI library path/binary path is already added to LD_LIBRARY_PATH/PATH”则说明已经添加，否则需要手动添加。