Programmable switch pipeline simulator.

Before the simulator can be executed, dgen needs to build and run. After running dgen, a prog_to_run.rs Rust file will be automatically generated in the Druzhba src directory which will allow the simulator to run.

Running dgen/dsim:

python3 execute_simulator.py <program name> <stateful ALU> <stateless ALU> <pipeline depth> <pipieline width> <stateful ALUs per stage> <constant set> <hole configurations> <packets> <ticks> <optimization level>

Example:

python3 execute_simulator.py simple example_alus/stateful_alus/raw.alu example_alus/stateless_alus/stateless_alu.alu 2 2 1 "0,1,2,3" hole_configurations/simple_raw_stateless_alu_2_2_hole_cfgs.txt 1 100 1

Tests will ensure the druhzba pipeline is outputting the correct packets relative to the input packets given to the pipeline. Run dgen first to get a prog_to_run file in src first. Otherwise the simulator won't compile.

To run these tests:

./build_dgen.sh && cargo test

To run benchmarks:

./build_dgen.sh && cargo bench

Similarly, the dgen tests ensure that the alu grammar is being parsed correctly and that the ast is being generated properly.

To run these tests:

cd dgen
cargo test

Note: Rust nightly may need to be enabled before LALRPOP can work

rustup default nightly