问题
I have been trying to resolve problems to be able to run openmpi on multiple nodes.
Initially I had a problem with $PATH and $LD_LIBRARY_PATH variables not being updated from .bashrc file by openmpi session, so I manually added --prefix /path/to/openmpi to resolve this issue.
Turns out that even the anaconda path variables are not being loaded as well. So ultimately I need ~/.bashrc file to be sourced from my home directory. How can I do that? Can anyone help me out please?
UPDATE 01:
I wrote a simple shell script to check the version of python
python --version
and tried to run it with openmpi on local as well as remote machine as follows:
mpirun --prefix /home/usama/.openmpi --hostfile hosts -np 4 bash script
And it returns
Python 2.7.12
Python 3.6.8 :: Anaconda, Inc.
Python 3.6.8 :: Anaconda, Inc.
Python 2.7.12
Confirming my suspicion that whatever openmpi is doing to run remote processes doesn't invoke / set proper environment variables from the ~/.bashrc file. Any help from someone who has worked with multi-node openmpi?
UPDATE 02:
A simple ssh environment grep tell me that my environment variables are not updated which might be the cause of the problem. (I have even tried to set it up in ~/.ssh/environment file)
$ ssh remote-node env | grep -i path
It seems to be loading only the /etc/environment file with only basic paths setup. How to I rectify this?
回答1:
maybe you should run like this.I guess. two ways help you!
first:
mpirun --prefix /home/usama/.openmpi --hostfile hosts -np 4 . ~/.bashrc && bash script
second:
## 1. add this line to the script
. ~/.bashrc
## 2. run command as you do
mpirun --prefix /home/usama/.openmpi --hostfile hosts -np 4 bash script
来源：https://stackoverflow.com/questions/55990383/correct-way-to-source-bashrc-for-non-interactive-shell