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dfsynthesizer's Introduction

DFSynthesizer

DFSynthesizer is a dataflow-based synthesizer that enables SNN-to-neuromorphic-hardware mapping exploration.

(Tested) Environment

Tool Version
Ubuntu 20.04
Boost C++ Libraries 1.71
GCC/G++ 9.3
GNU Make 4.2.1

Installation

cd sdf3
make
cd ..

Tutorials

Normal execution (no custom tile binding specified)

Command

cd tutorial/normal_execution
../../sdf3/build/release/Linux/bin/sdf3flow-sdf --settings sdf3.opt

Console output

...
[DFSynthesizer] Original actor-tile mapping. 
[DFSynthesizer] Tile tile_a: mb_encoding motion_compensation 
[DFSynthesizer] Tile tile_b: mb_decoding 
[DFSynthesizer] Tile tile_c: vlc 
[DFSynthesizer] Tile tile_d: motion_estimation
...

Go back to the repository root

cd ../..

Custom actor-to-tile binding

Command

cd tutorial/custom_actor_to_tile_binding
../../sdf3/build/release/Linux/bin/sdf3flow-sdf --settings sdf3_tb_2.opt

Console output

...
[DFSynthesizer] Original actor-tile mapping. 
[DFSynthesizer] Tile tile_0: actor_0 actor_3 
[DFSynthesizer] Tile tile_1: actor_5 actor_7 
[DFSynthesizer] Tile tile_2: actor_2 
[DFSynthesizer] Tile tile_3: actor_4 actor_1
...
[DFSynthesizer] Custom actor-tile mapping.
[DFSynthesizer] Tile tile_0: actor_0 actor_1 actor_2 actor_3 
[DFSynthesizer] Tile tile_1: actor_4 actor_5 actor_7
...

Investigate sdf3_tb_2.opt

vim sdf3_tb_2.opt
...
9     <TileBinding file="tile_binding_2.txt"/>
...

Investigate tile_binding_2.txt

vim tile_binding_2.txt
0 0 1 2 3
1 4 5 7

tile_binding_2.txt explanation

0 0 1 2 3
1 4 5 7
    Map 0,1,2,3 to tile 0
    Map 4,5,7 to tile 1

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