Sequoia

LLNL's 20 petaflops Sequoia supercomputer has retained its No. 1 ranking on the Graph 500 list, a measure of a system's ability to conduct analytic calculations -- finding the proverbial needle in the haystack.

Sequoia, a world-class IBM BlueGene/Q computer sited at LLNL for the National Nuclear Security Administration (NNSA), is exploring a broad range of science to shakeout the machine and fully develop the capabilities the system will require to fulfill its national security missions, starting early next year.