In this podcast, the Radio Free HPC team discusses a recent presentation by John Gustafson on Next Generation Computer Arithmetic. “A new data type called a “posit” is designed for direct drop-in replacement for IEEE Standard 754 floats. Unlike unum arithmetic, posits do not require interval-type mathematics or variable size operands, and they round if an answer is inexact, much the way floats do. However, they provide compelling advantages over floats, including simpler hardware implementation that scales from as few as two-bit operands to thousands of bits.”
Today DDN announced that Yahoo Japan has deployed an active archive system jointly developed by DDN and IBM Japan. The new system allows Yahoo! JAPAN to cache dozens of petabytes of data from its OpenStack Swift storage solution in a Japan-based data center, and transfer data to a U.S.-based data center at an astonishing rate of 50 TB of data per day – thus enabling energy cost savings of 74 percent due to lower energy rates in the United States versus Japan, while ensuring fast data access regardless of location.