Expected Benefits of VPC
Up to an order of magnitude increase in scientific throughput, tens of millions of dollars in savings in computing and data storage resources, a healthy high-performance computing ecosystem, and continued leadership in HPC: these are the expected benefits of Variable Precision Computing. We have become complacent and wasteful in how we represent and use real numbers in digital computers, but the disruptive challenges facing HPC hardware provide an opportunity to reshape how floating-point computing is done. We are developing the methods, tools, and expertise that will facilitate the effective use of mixed and dynamically adaptive precision in scientific applications. Our approach builds on our expertise in applications, numerical analysis, adaptive mesh refinement, floating-point compression, source-to-source code transformation, and novel variable-length data representations.