jianyicheng / dynamatic

Dynamatic

Dynamically Scheduled High-Level Synthesis

Compiler

The compilation flow consists of the following parts:

• elastic-circuits: A collection of LLVM passes which input a C/C++ program and transform its IR into a dataflow circuit. The output of this pass is a .DOT file which represents a netlist of dataflow components. The details of the .DOT dataflow description are given in Documents/Dataflow.md.

• Buffers: Buffer placement for throughput and critical path optimization. Inputs the .DOT netlist from elastic-circuits and outputs a .DOT netlist with buffers placed and sized to maximize throughput under a given clock period constaint.

• dot2vhdl: Inputs a .DOT netlist (either produced by elastic-circuits, or by Buffers) and outputs an equivalent VHDL netlist of dataflow components. VHDL descriptions of the dataflow components are given in components. Apart from the VHDL netlist, dot2vhdl also produces a .json file for configuring LSQs (if required by the design). The LSQ can be configured using the files in chisel_lsq.

All folders contain README files with detailed instructions on installation and running the code.

Simulation and Verification

Please refer to Documents/ModelSim Simulation.md on details about running the simulation and incorporating Xilinx computational units into the dataflow designs. The designs can be verified using the framework in the hls_verifier folder.