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How to build a cluter based on 2 PCs?


I have two laptops with ubuntu system. I got NFS working also ssh without password prompt between the two laptops. I also installed MPICH. And my simple parallel code is compiled successfully. But after I use mpirun -np n xxx to submit my job. it doesn't work.

what could be the problem?

I guess the problem may be the NFS exports setting on my head node(one of my laptop). Even though I can mount the shared folder to my internal node. I don't have write permission from my internal node. But in my exports I did set rw permission. So I don't know what is wrong

Have a nice day


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