Linux 加载共享库时出错：libcudart.so.4：无法打开共享对象文件：没有这样的文件或目录
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error while loading shared libraries: libcudart.so.4: cannot open shared object file: No such file or directory
提问by Coder
I am trying to execute MPI and CUDA code on a cluster. The code works fine on single machine but when I try to execute it on cluster I get error:
我正在尝试在集群上执行 MPI 和 CUDA 代码。该代码在单机上运行良好，但是当我尝试在集群上执行它时出现错误：
error while loading shared libraries: libcudart.so.4: cannot open shared object file: No such file or directory
加载共享库时出错：libcudart.so.4：无法打开共享对象文件：没有这样的文件或目录
I checked my PATH and LD_PATH and it looks ok. I have a .bashrc file which contains following entries -
我检查了我的 PATH 和 LD_PATH，它看起来没问题。我有一个 .bashrc 文件，其中包含以下条目 -
export PATH=$PATH:/usr/local/lib/:/usr/local/lib/openmpi:/usr/local/cuda/bin export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib:/usr/local/ lib/openmpi/:/usr/local/cuda/lib
export PATH=$PATH:/usr/local/lib/:/usr/local/lib/openmpi:/usr/local/cuda/bin export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib:/usr/local/lib /openmpi/:/usr/local/cuda/lib
All the machines haves same installation of CUDA and OpenMPI.
所有机器都安装了相同的 CUDA 和 OpenMPI。
I also have /usr/local/cuda/lib in /etc/ld.so.conf
我在 /etc/ld.so.conf 中也有 /usr/local/cuda/lib
Can anyone help me with this. This problem is really annoying.
谁能帮我这个。这个问题真的很烦。
Thanks.
谢谢。
采纳答案by Dmitri Chubarov
If you are sending a batch job on a cluster, please add commands like
如果您要在集群上发送批处理作业，请添加如下命令
echo $LD_LIBRARY_PATH
ldd ./your_app
to your batch script. This should help to debug the problem.
到您的批处理脚本。这应该有助于调试问题。
Also make sure that you export environment variables in mpirun. For instance, in OpenMPI you would run your code with
还要确保在 mpirun 中导出环境变量。例如，在 OpenMPI 中，您可以使用
mpirun -x LD_LIBRARY_PATH ...
