I'm at CalTech listening to physicists talk about the software side of the new Spallation Neutron Source at Oak Ridge. One of their major headaches is the difficulty of deploying their code: a typical application has dozens of complicated modules, each with dozens or hundreds of dependencies. Their solution is to host a web service rather than try to deploy on end users' machines, which has got me thinking: are web services and virtualization competing solutions for non-data-intensive applications? (Non-data-intensive because if your app needs to grind a few terabytes to produce an answer, you're not shipping copies of it around.) Does anyone know of any studies/comparisons of the tradeoffs between "here's the over-the-web API" and "here the VM"?
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