HBM, present and future of HPC based on FPGAs

Abstract

In the past decades, advances in the speed of commodity CPUs have far out-paced advances in memory latency. Mainmemory access is therefore increasingly a performance bottleneck for many computer applications, including HPC embedded systems. This translates into unprecedented memory performance requirements in critical systems that the commonly used DRAM memories struggle to provide. High-Bandwidth Memory (HBM) can satisfy these requirements offering high bandwidth, low power and highintegration capacity features. However, it remains unclear whether the predictability and isolation properties of HBM are compatible with the requirements of critical embedded systems. In our research, a deep characterization of the HBM for its use in MEEP applications is performed.