Comment (by Roland Haas):

If you could change aliaspattern to:

aliaspattern    = login[1234]\.frontera\.tacc\.utexas\.edu$

ie remove the (...)? optional marker, then check if ./simfactory/bin/sim whoami still reports frontera then we can update the machine definition file to avoid the confusion due to identical login node hostnames in different cluster domains.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2574/alias-patterns-for-bluewaters-and-frontera