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Deploy Hermes Alone

This section will go over an example of how to use jarvis to deploy Hermes. Here our objective is only to get Hermes up and running. We will give example applications in a different article.

Building an Environment​

We will now load all necessary environment variables and build a Jarvis environment named hermes:

spack load iowarp
jarvis env build hermes

hermes will store all important environment variables, including PATH, LD_LIBRARY_PATH, etc. in a YAML file. This will make it so that you do not need to repeatedly run spack load and module load if the machine is broken.

Load an example pipeline​

jarvis ppl index copy jarvis_hermes.hermes.test_hermes
jarvis ppl load yaml test_hermes.yaml

This will copy the test_hermes pipeline script to the current directory as test_hermes.yaml. You could then play with the parameters from there.

Run the pipeline​

jarvis ppl run

Stopping and Killing Hermes​

To gracefully stop Hermes and flush data back to the PFS:

jarvis ppl stop

To kill a Hermes deployment that isn't stopping gracefully:

jarvis ppl kill

Cleanup​

To erase data produced by the pipeline:

jarvis ppl clean

To destroy the pipeline:

jarvis ppl destroy