Is Accumulo The World’s Most Scalable Graph Store?

NSA just released some fascinating new data on Apache Accumulo performance as a massively scalable graph store.  The data was presented last week at Carnegie Mellon University, and the abstract of the report reads:

“Developing scalable graph algorithms in the Big Data era is an imposing challenge. Graph algorithms can be especially difficult to scale because of highly skewed data distribution and irregular data access patterns. Graphs at Big Data scales can exceed the physical memory of even the largest supercomputers which inhibit conventional algorithm implementations. [...]"