Crossbow

Crossbow provides Biomolecular Simulation researchers with "one-click" deployment of bespoke, personal compute clusters in the cloud ready to run everything from simple simulations to complex workflows. All of Amazon Web Service's range of instance types are available, including powerful multi-GPU resources very well suited to MD simulations, and the use of the "spot instance" model keeps costs to a minimum.

For more details see here.

Crossbow Cluster Diagram