Place the driver of a cascade chain close to the head of the cascade chain, if possible. This reduces routing latency for these long latency paths and can reduce the need for expensively large switch/DMA FIFOs.
Figure 1. Cascade Chain
- Specify
fifo_depthconstraints for nets that require buffering. - Minimize streams and favor windows.
If you have specified fifo_depth, you can
check the log for the FIFO report section in AIECompiler.log.