ca_bench_example.cc File Reference

Phase-5 microbenchmark: parallel vs sequential GoL throughput. More...

#include <array>
#include <cstdint>
#include <cstdio>
#include <random>
#include <vector>
#include <thread_pool.H>
#include <ca-bench.H>
#include <ca-traits.H>
#include <tpl_ca_engine.H>
#include <tpl_ca_lattice.H>
#include <tpl_ca_neighborhood.H>
#include <tpl_ca_parallel_engine.H>
#include <tpl_ca_rule.H>
#include <tpl_ca_storage.H>

Include dependency graph for ca_bench_example.cc:

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Typedefs
using	Lat_t = Lattice< Dense_Cell_Storage< int, 2 >, ToroidalBoundary >

Functions
int	main ()

Detailed Description

Phase-5 microbenchmark: parallel vs sequential GoL throughput.

Sweeps a grid of (N, threads) configurations, runs Conway's Game of Life with toroidal borders for a fixed number of steps, and prints a table with wall-clock time, throughput and the speedup vs the single-thread baseline.

The example asserts that the parallel and sequential engines produce bit-identical final frames for every configuration. This doubles as a sanity check: any divergence is a bug to fix before looking at the timings.

Definition in file ca_bench_example.cc.

Typedef Documentation

Lat_t

using Lat_t = Lattice<Dense_Cell_Storage<int, 2>, ToroidalBoundary>

Definition at line 66 of file ca_bench_example.cc.

Function Documentation

main()

int main

(

void

)

Definition at line 121 of file ca_bench_example.cc.

References Aleph::CA::bench_seconds(), Aleph::blossom_maximum_cardinality_matching(), Aleph::default_pool(), Aleph::CA::format_throughput(), Aleph::CA::frames_equal(), Aleph::CA::make_game_of_life_rule(), N, seed, and steps.