mo8it/ReCo.jl
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Code Issues Releases Activity

Fixes incl. state

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This commit is contained in:
MoBit 2021-12-14 04:03:14 +01:00
parent cfb38c6a19
commit 8ad67229a8
5 changed files with 170 additions and 117 deletions
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2
src/ReCo.jl
View file

@ -1,6 +1,6 @@
module ReCo
export init_sim, run_sim
export init_sim, run_sim, RL
include("PreVector.jl")
include("Particle.jl")

257
src/reinforcement_learning.jl
View file

@ -1,9 +1,12 @@
module RL
export run
using ReinforcementLearning
using Flux: InvDecay
using Intervals
using StaticArrays: SVector
using LoopVectorization: @turbo
using Random: Random
using ProgressMeter: @showprogress
@ -11,6 +14,8 @@ using ..ReCo
import Base: run
const INITIAL_REWARD = 0.0
struct DistanceState{L<:Bound}
interval::Interval{Float64,L,Closed}
@ -29,22 +34,25 @@ end
mutable struct EnvParams
action_space::Vector{Tuple{Float64,Float64}}
action_space_ind::Vector{Int64}
action_ind_space::Vector{Int64}
distance_state_space::Vector{DistanceState}
direction_state_space::Vector{DirectionState}
state_space::Vector{Tuple{Union{DistanceState,Nothing},Union{DirectionState,Nothing}}}
state_space_ind::Vector{Int64}
state_space::Vector{Union{Tuple{DistanceState,DirectionState},Tuple{Nothing,Nothing}}}
state_ind_space::Vector{Int64}
n_states::Int64
reward::Float64
function EnvParams(
min_distance::Float64,
max_distance::Float64;
n_v_actions::Int64=5,
n_ω_actions::Int64=5,
n_v_actions::Int64=3,
n_ω_actions::Int64=3,
max_v::Float64=80.0,
max_ω::Float64=π / 1.5,
n_distance_states::Int64=3,
n_direction_states::Int64=4,
n_distance_states::Int64=2,
n_direction_states::Int64=2,
)
@assert min_distance > 0.0
@assert max_distance > min_distance
@ -68,14 +76,14 @@ mutable struct EnvParams
end
end
action_space_ind = collect(1:n_actions)
action_ind_space = collect(1:n_actions)
distance_range =
min_distance:((max_distance - min_distance) / n_distance_states):max_distance
distance_state_space = Vector{DistanceState}(undef, n_distance_states)
for i in 1:n_distance_states
@simd for i in 1:n_distance_states
if i == 1
bound = Closed
else
@ -91,7 +99,7 @@ mutable struct EnvParams
direction_state_space = Vector{DirectionState}(undef, n_direction_states)
for i in 1:n_direction_states
@simd for i in 1:n_direction_states
direction_state_space[i] = DirectionState(
direction_range[i], direction_range[i + 1]
)
@ -100,7 +108,7 @@ mutable struct EnvParams
n_states = n_distance_states * n_direction_states + 1
state_space = Vector{
Tuple{Union{DistanceState,Nothing},Union{DirectionState,Nothing}}
Union{Tuple{DistanceState,DirectionState},Tuple{Nothing,Nothing}}
}(
undef, n_states
)
@ -114,22 +122,27 @@ mutable struct EnvParams
end
state_space[ind] = (nothing, nothing)
state_space_ind = collect(1:n_states)
initial_reward = 0.0
state_ind_space = collect(1:n_states)
return new(
action_space,
action_space_ind,
action_ind_space,
distance_state_space,
direction_state_space,
state_space,
state_space_ind,
initial_reward,
state_ind_space,
n_states,
INITIAL_REWARD,
)
end
end
function reset!(env_params::EnvParams)
env_params.reward = INITIAL_REWARD
return nothing
end
mutable struct Env <: AbstractEnv
params::EnvParams
particle::ReCo.Particle
@ -137,12 +150,29 @@ mutable struct Env <: AbstractEnv
function Env(params::EnvParams, particle::ReCo.Particle)
# initial_state = (nothing, nothing)
initial_state_ind = length(params.state_space_ind)
initial_state_ind = params.n_states
return new(params, particle, initial_state_ind)
end
end
function reset!(env::Env, particle::ReCo.Particle)
env.particle = particle
env.state_ind = env.params.n_states
return nothing
end
RLBase.state_space(env::Env) = env.params.state_ind_space
RLBase.state(env::Env) = env.state_ind
RLBase.action_space(env::Env) = env.params.action_ind_space
RLBase.reward(env::Env) = env.params.reward
RLBase.is_terminated(::Env) = false
function gen_policy(n_states::Int64, n_actions::Int64)
return QBasedPolicy(;
learner=MonteCarloLearner(;
@ -161,8 +191,8 @@ struct Params{H<:AbstractHook}
actions::Vector{Tuple{Float64,Float64}}
env_params::EnvParams
n_steps_before_actions_update::Int64
min_distance²::Vector{Float64}
r⃗₁₂_to_min_distance_particle::Vector{SVector{2,Float64}}
min_sq_distances::Vector{Float64}
vecs_r⃗₁₂_to_min_distance_particle::Vector{SVector{2,Float64}}
goal_shape_ratio::Float64
function Params{H}(
@ -171,48 +201,57 @@ struct Params{H<:AbstractHook}
n_steps_before_actions_update::Int64,
goal_shape_ratio::Float64,
) where {H<:AbstractHook}
policies = [
gen_policy(length(env_params.state_space), length(env_params.action_space)) for
i in 1:n_particles
]
envs = [Env(env_params, ReCo.gen_tmp_particle()) for i in 1:n_particles]
agents = [
Agent(; policy=policy, trajectory=VectorSARTTrajectory()) for policy in policies
Agent(;
policy=gen_policy(env_params.n_states, length(env_params.action_space)),
trajectory=VectorSARTTrajectory(),
) for i in 1:n_particles
]
hooks = [H() for i in 1:n_particles]
actions = Vector{Tuple{Float64,Float64}}(undef, n_particles)
min_sq_distances = fill(Inf64, n_particles)
vecs_r⃗₁₂_to_min_distance_particle = fill(SVector(0.0, 0.0), n_particles)
return new(
[Env(env_params, ReCo.gen_tmp_particle()) for i in 1:n_particles],
envs,
agents,
[H() for i in 1:n_particles],
Vector{Tuple{Float64,Float64}}(undef, n_particles),
hooks,
actions,
env_params,
n_steps_before_actions_update,
zeros(n_particles),
fill(SVector(0.0, 0.0), n_particles),
min_sq_distances,
vecs_r⃗₁₂_to_min_distance_particle,
goal_shape_ratio,
)
end
end
RLBase.state_space(env::Env) = env.params.state_space_ind
RLBase.state(env::Env) = env.state_ind
RLBase.action_space(env::Env) = env.params.action_space_ind
RLBase.reward(env::Env) = env.params.reward
RLBase.is_terminated(::Env) = false
function get_env_agent_hook(rl_params::Params, ind::Int64)
return (rl_params.envs[ind], rl_params.agents[ind], rl_params.hooks[ind])
end
function pre_integration_hook!(rl_params::Params, n_particles::Int64)
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
@simd for i in 1:n_particles
env, agent, hook = get_env_agent_hook(rl_params, i)
# Update action
action_ind = agent(env)
action = rl_params.env_params.action_space[action_ind]
rl_params.actions[i] = action
# Pre act
agent(PRE_ACT_STAGE, env, action_ind)
rl_params.hooks[i](PRE_ACT_STAGE, agent, env, action_ind)
hook(PRE_ACT_STAGE, agent, env, action_ind)
end
@turbo for i in 1:n_particles
rl_params.min_sq_distances[i] = Inf64
end
return nothing
@ -221,24 +260,25 @@ end
function state_hook(
id1::Int64, id2::Int64, r⃗₁₂::SVector{2,Float64}, distance²::Float64, rl_params::Params
)
if rl_params.min_distance²[id1] > distance²
rl_params.min_distance²[id1] = distance²
if rl_params.min_sq_distances[id1] > distance²
rl_params.min_sq_distances[id1] = distance²
rl_params.r⃗₁₂_to_min_distance_particle[id1] = r⃗₁₂
rl_params.vecs_r⃗₁₂_to_min_distance_particle[id1] = r⃗₁₂
end
if rl_params.min_distance²[id2] > distance²
rl_params.min_distance²[id2] = distance²
if rl_params.min_sq_distances[id2] > distance²
rl_params.min_sq_distances[id2] = distance²
rl_params.r⃗₁₂_to_min_distance_particle[id2] = -r⃗₁₂
rl_params.vecs_r⃗₁₂_to_min_distance_particle[id2] = -r⃗₁₂
end
return nothing
end
function integration_hook(
function integration_hook!(
particle::ReCo.Particle, rl_params::Params, δt::Float64, si::Float64, co::Float64
)
# Apply action
action = rl_params.actions[particle.id]
vδt = action[1] * δt
@ -248,10 +288,12 @@ function integration_hook(
return nothing
end
function get_state_ind(
state::T, states::Vector{T}
) where {T<:Tuple{Union{DistanceState,Nothing},Union{DirectionState,Nothing}}}
return findfirst(x -> x == state, states)
function get_state_ind(state::Tuple{DistanceState,DirectionState}, env_params::EnvParams)
return findfirst(x -> x == state, env_params.state_space)
end
function get_state_ind(::Tuple{Nothing,Nothing}, env_params::EnvParams)
return env_params.n_states
end
function post_integration_hook(
@ -260,28 +302,41 @@ function post_integration_hook(
particles::Vector{ReCo.Particle},
half_box_len::Float64,
)
# Update reward
rl_params.env_params.reward =
1 -
(
ReCo.gyration_tensor_eigvals_ratio(particles, half_box_len) -
rl_params.goal_shape_ratio
)^2
# Update states
n_states = rl_params.env_params.n_states
env_direction_state = rl_params.env_params.direction_state_space[1]
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
min_distance = sqrt(rl_params.min_distance²[i])
env, agent, hook = get_env_agent_hook(rl_params, i)
env_distance_state::Union{DistanceState,Nothing} = nothing
for distance_state in rl_params.env_params.distance_state_space
if min_distance in distance_state.interval
env_distance_state = distance_state
break
min_sq_distance = rl_params.min_sq_distances[i]
min_distance = sqrt(min_sq_distance)
if !isinf(min_sq_distance)
for distance_state in rl_params.env_params.distance_state_space
if min_distance in distance_state.interval
env_distance_state = distance_state
break
end
end
end
if isnothing(env_distance_state)
# (nothing, nothing)
env.state_ind = length(env.params.state_space)
env.state_ind = n_states
else
r⃗₁₂ = rl_params.r⃗₁₂_to_min_distance_particle[i]
r⃗₁₂ = rl_params.vecs_r⃗₁₂_to_min_distance_particle[i]
si, co = sincos(particles[i].φ)
#=
@ -290,28 +345,25 @@ function post_integration_hook(
angle = acos(dot(r⃗₁₂, e) / (norm(r⃗₁₂) * norm(e)))
norm(r⃗₁₂) == min_distance
norm(e) == 1
min_distance is not infinite, because otherwise
env_direction_state would be nothing and this else block will not be called
=#
direction = acos((r⃗₁₂[1] * co + r⃗₁₂[2] * si) / min_distance)
for direction_state in rl_params.env_params.direction_state_space
if direction in direction_state
if direction in direction_state.interval
env_direction_state = direction_state
end
end
state = (env_distance_state, env_direction_state)
env.state_ind = get_state_ind(state, env.params.state_space)
env.state_ind = get_state_ind(state, env.params)
end
env.params.reward =
1 -
(
ReCo.gyration_tensor_eigvals_ratio(particles, half_box_len) -
rl_params.goal_shape_ratio
)^2
# Post act
agent(POST_ACT_STAGE, env)
rl_params.hooks[i](POST_ACT_STAGE, agent, env)
hook(POST_ACT_STAGE, agent, env)
end
return nothing
@ -320,9 +372,10 @@ end
function run(;
goal_shape_ratio::Float64,
n_episodes::Int64=100,
episode_duration::Float64=100.0,
update_actions_at::Float64=0.1,
episode_duration::Float64=50.0,
update_actions_at::Float64=0.2,
n_particles::Int64=100,
seed::Int64=42,
)
@assert 0.0 <= goal_shape_ratio <= 1.0
@assert n_episodes > 0
@ -330,9 +383,10 @@ function run(;
@assert update_actions_at in 0.01:0.01:episode_duration
@assert n_particles > 0
Random.seed!(42)
# Setup
Random.seed!(seed)
sim_consts = ReCo.gen_sim_consts(n_particles, 0.0; skin_to_interaction_r_ratio=4.0)
sim_consts = ReCo.gen_sim_consts(n_particles, 0.0; skin_to_interaction_r_ratio=3.0)
n_particles = sim_consts.n_particles
env_params = EnvParams(sim_consts.particle_radius, sim_consts.skin_r)
@ -343,50 +397,51 @@ function run(;
n_particles, env_params, n_steps_before_actions_update, goal_shape_ratio
)
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
# Pre experiment
@simd for i in 1:n_particles
env, agent, hook = get_env_agent_hook(rl_params, i)
rl_params.hooks[i](PRE_EXPERIMENT_STAGE, agent, env)
hook(PRE_EXPERIMENT_STAGE, agent, env)
agent(PRE_EXPERIMENT_STAGE, env)
end
@showprogress 0.6 for episode in 1:n_episodes
dir, particles = ReCo.init_sim_with_sim_consts(sim_consts; parent_dir="RL")
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
# Reset
@simd for i in 1:n_particles
reset!(rl_params.envs[i], particles[i])
end
rl_params.hooks[i](PRE_EPISODE_STAGE, agent, env)
reset!(rl_params.env_params)
# Pre espisode
@simd for i in 1:n_particles
env, agent, hook = get_env_agent_hook(rl_params, i)
hook(PRE_EPISODE_STAGE, agent, env)
agent(PRE_EPISODE_STAGE, env)
end
for i in 1:n_particles
rl_params.envs[i].particle = particles[i]
rl_params.envs[i].state_ind = length(rl_params.env_params.state_space)
end
rl_params.env_params.reward = 0.0
# Episode
run_sim(
dir; duration=episode_duration, seed=rand(1:typemax(Int64)), rl_params=rl_params
)
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
# Post episode
@simd for i in 1:n_particles
env, agent, hook = get_env_agent_hook(rl_params, i)
rl_params.hooks[i](POST_EPISODE_STAGE, agent, env)
hook(POST_EPISODE_STAGE, agent, env)
agent(POST_EPISODE_STAGE, env)
end
end
for i in 1:n_particles
env = rl_params.envs[i]
agent = rl_params.agents[i]
# Post experiment
@simd for i in 1:n_particles
env, agent, hook = get_env_agent_hook(rl_params, i)
rl_params.hooks[i](POST_EXPERIMENT_STAGE, agent, env)
hook(POST_EXPERIMENT_STAGE, agent, env)
end
return rl_params

8
src/run.jl
View file

@ -109,12 +109,10 @@ function run_sim(
if !isnothing(rl_params)
pre_integration_hook! = RL.pre_integration_hook!
integration_hook = RL.integration_hook
integration_hook! = RL.integration_hook!
post_integration_hook = RL.post_integration_hook
else
pre_integration_hook! = empty_hook
integration_hook = empty_hook
post_integration_hook = empty_hook
pre_integration_hook! = integration_hook! = post_integration_hook = empty_hook
end
simulate(
@ -128,7 +126,7 @@ function run_sim(
save_data,
rl_params,
pre_integration_hook!,
integration_hook,
integration_hook!,
post_integration_hook,
)

8
src/setup.jl
View file

@ -65,11 +65,11 @@ function gen_sim_consts(
ϵ = 100.0
interaction_r = 2^(1 / 6) * σ
if v₀ != 0.0
buffer = 1.8
max_approach_after_one_integration_step = buffer * (2 * v₀ * δt) / interaction_r
@assert skin_to_interaction_r_ratio >= 1 + max_approach_after_one_integration_step
buffer = 1.8
max_approach_after_one_integration_step = buffer * (2 * v₀ * δt) / interaction_r
@assert skin_to_interaction_r_ratio >= 1 + max_approach_after_one_integration_step
if v₀ != 0.0
n_steps_before_verlet_list_update = round(
Int64,
(skin_to_interaction_r_ratio - 1) / max_approach_after_one_integration_step,

12
src/simulation.jl
View file

@ -43,7 +43,7 @@ end
function euler!(
args,
state_hook::Function,
integration_hook::Function,
integration_hook!::Function,
rl_params::Union{RL.Params,Nothing},
)
for id1 in 1:(args.n_particles - 1)
@ -79,7 +79,7 @@ function euler!(
restrict_coordinates!(p, args.half_box_len)
integration_hook(p, rl_params, args.δt, si, co)
integration_hook!(p, rl_params, args.δt, si, co)
p.φ += args.c₄ * rand_normal01()
@ -94,8 +94,8 @@ wait(::Nothing) = nothing
gen_run_hooks(::Nothing, args...) = false
function gen_run_hooks(rl_params::RL.Params, integration_step::Int64)
return (integration_step == 1) ||
(integration_step % rl_params.n_steps_before_actions_update == 0)
return (integration_step % rl_params.n_steps_before_actions_update == 0) ||
(integration_step == 1)
end
function simulate(
@ -109,7 +109,7 @@ function simulate(
save_data::Bool,
rl_params::Union{RL.Params,Nothing},
pre_integration_hook!::Function,
integration_hook::Function,
integration_hook!::Function,
post_integration_hook::Function,
)
bundle_snapshot_counter = 0
@ -153,7 +153,7 @@ function simulate(
state_hook = RL.state_hook
end
euler!(args, state_hook, integration_hook, rl_params)
euler!(args, state_hook, integration_hook!, rl_params)
if run_hooks
post_integration_hook(