Intel® Hyperflex™ Architecture High-Performance Design Handbook

ID 683353
Date 10/04/2021

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Document Table of Contents

1.1. Intel® Hyperflex™ Architecture Design Concepts

Table 1.  Glossary
Term/Phrase Description
Critical Chain Any design condition that prevents retiming of registers. The limiting factor can include multiple register-to-register paths in a chain. The fMAX of the critical chain and its associated clock domain is limited by the average delay of a register-to-register path, and quantization delays of indivisible circuit elements like routing wires. Use Fast Forward compilation to break critical chains.
Fast Forward Compilation Generates design-specific timing closure recommendations, and forward-looking performance results after removal of each timing restriction.
Hyper-Aware Design Flow Design flow that enables the highest performance in Intel® Hyperflex™ architecture FPGAs through Hyper-Retiming, Hyper-Pipelining, Fast Forward compilation, and Hyper-Optimization.
Intel® Hyperflex™ FPGA Architecture Device core architecture that includes additional registers, called Hyper-Registers, everywhere throughout the core fabric. Hyper-Registers provide increased bandwidth and improved area and power efficiency.
Hyper-Optimization Design process that improves design performance through implementation of key RTL changes recommended by Fast Forward compilation, such as restructuring logic to use functionally equivalent feed-forward or pre-compute paths, rather than long combinatorial feedback paths.
Hyper-Pipelining Design process that eliminates long routing delays by adding additional pipeline stages in the interconnect between the ALM registers. This technique allows the design to run at a faster clock frequency.
Hyper-Retiming During Fast Forward compile, Hyper-Retiming speculatively removes signals from registers to enable mobility in the netlist for retiming.
Multiple Corner Timing Analysis Analysis of multiple "timing corner cases" to verify your design's voltage, process, and temperature operating conditions. Fast-corner analysis assumes best-case timing conditions.