Einstein@Home is supported by the U.S. National Science Foundation and the Max Planck Institute.
Grid computing is a form of distributed computing in which many networked computers, often in different locations, act in concert to form a virtual supercomputer to perform very large tasks.
Increasingly, scientists are tapping the power of volunteer enthusiasts from all over the world to help with their research. Volunteers connect their computers to a grid, which taps their unused processing power for the purpose of the research.
The Einstein@Home research paper calls this phenomenon “global volunteer computing.”