The xSDK-ECP project is an effort to provide infrastructure for and interoperability of a collection of related and complementary software elements—developed by diverse, independent teams throughout the high-performance computing (HPC) community—that provide the building blocks, tools, models, processes, and related artifacts for rapid and efficient development of high-quality applications. The xSDK is the key delivery mechanism for ECP math libraries continual advancements toward predictive science to insure high software quality, sustainability and a seamless build. In order to make sure the xSDK builds on a variety of computer architectures it is important to get access to early computer architecture.