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# NERSC
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If you have an ORNL computer and so are on the internal network to ssh to nersc machines you must you a ssh proxy like `corkscrew`
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On OSX install homebrew ([explained here](OSX))
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```shell
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brew install corkscrew
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```
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On linux
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```shell
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spack install corkscrew
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```
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or just get it from [github](https://github.com/bryanpkc/corkscrew) and compile
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Add the following to your `~/.ssh/config`
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```shell
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Host *.nersc.gov
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ProxyCommand corkscrew snowman.ornl.gov 3128 %h %p
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```
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## [NERSC has its own excellent docs](http://www.nersc.gov/users/)
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Things can be a little hard to find though so here are some important points
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### [Slurm on Nersc](http://www.nersc.gov/users/computational-systems/cori/running-jobs/slurm-at-nersc-overview/)
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