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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
[![CI](https://github.com/SciML/ParallelParticleSwarms.jl/actions/workflows/CI.yml/badge.svg)](https://github.com/SciML/ParallelParticleSwarms.jl/actions/workflows/CI.yml)
[![Build status](https://badge.buildkite.com/caf5d6f9d5129b5796049b085df39fd8fab055826b513d361e.svg)](https://buildkite.com/julialang/parallelparticleswarms-dot-jl)
[![codecov](https://codecov.io/gh/utkarsh530/ParallelParticleSwarms.jl/graph/badge.svg?token=H5U5UAIRXX)](https://codecov.io/gh/utkarsh530/ParallelParticleSwarms.jl)
[![ColPrac: Contributor's Guide on Collaborative Practices for Community Packages](https://img.shields.io/badge/ColPrac-Contributor's%20Guide-blueviolet)](https://github.com/SciML/ColPrac)
[![ColPrac: Contributor's Guide on Collaborative Practices for Community Packages](https://img.shields.io/badge/ColPrac-Contributor%27s%20Guide-blueviolet)](https://github.com/SciML/ColPrac)
[![SciML Code Style](https://img.shields.io/static/v1?label=code%20style&message=SciML&color=9558b2&labelColor=389826)](https://github.com/SciML/SciMLStyle)

Accelerating convex/non-convex optimization with GPUs using Particle-Swarm based methods.
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3 changes: 2 additions & 1 deletion benchmarks/CPU_vs_GPU/benchmark.jl
Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,8 @@ for n_particles in Ns
## CPU solve
backend = CPU()
opt = ParallelSyncPSOKernel(n_particles; backend)
init_gbest, particles = ParallelParticleSwarms.init_particles(
init_gbest,
particles = ParallelParticleSwarms.init_particles(
prob, opt, typeof(prob.u0))

particles_eltype = eltype(particles) === Float64 ? Float32 : eltype(particles)
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30 changes: 20 additions & 10 deletions benchmarks/CPU_vs_GPU/wp_algs.jl
Original file line number Diff line number Diff line change
Expand Up @@ -105,36 +105,41 @@ end
for n_particles in Ns
@info n_particles

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelSyncPSOKernel(n_particles; backend = CPU()),
500)

push!(cpu_loss, obj)
push!(cpu_times, sol_time)

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelSyncPSOKernel(n_particles; backend = CUDABackend()),
500)

push!(gpu_sync_loss, obj)
push!(gpu_sync_times, sol_time)

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelPSOKernel(n_particles; backend = CUDABackend(), global_update = false),
500)

push!(gpu_async_loss, obj)
push!(gpu_async_times, sol_time)

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelPSOKernel(n_particles; backend = CUDABackend(), global_update = true),
500;
runs = 2)

push!(gpu_queue_lock_loss, obj)
push!(gpu_queue_lock_times, sol_time)

obj, solve_time = solve_run(prob,
obj,
solve_time = solve_run(prob,
ParallelParticleSwarms.HybridPSO(; backend = CUDABackend(),
pso = ParallelParticleSwarms.ParallelPSOKernel(n_particles;
global_update = false,
Expand Down Expand Up @@ -330,7 +335,8 @@ begin
for iters in tot_maxiters
@info iters

obj, sol_time = solve_run(uncons_prob,
obj,
sol_time = solve_run(uncons_prob,
LBFGS(),
iters;
reltol = -Inf,
Expand Down Expand Up @@ -362,14 +368,16 @@ begin
# ParallelPSOKernel(n_particles; backend = CUDABackend(), global_update = true),
# maxiters = iters)

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelPSOKernel(n_particles; backend = CUDABackend(), global_update = true),
iters)

push!(queue_lock_losses, obj)
push!(queue_lock_time, sol_time)

obj, sol_time = solve_run(prob,
obj,
sol_time = solve_run(prob,
ParallelSyncPSOKernel(n_particles; backend = CPU()),
iters)

Expand All @@ -388,7 +396,8 @@ begin
# local_opt = ParallelParticleSwarms.LBFGS()), maxiters = iters,
# local_maxiters = iters)

obj, solve_time = solve_run(prob,
obj,
solve_time = solve_run(prob,
ParallelParticleSwarms.HybridPSO(; backend = CUDABackend(),
pso = ParallelParticleSwarms.ParallelPSOKernel(n_particles;
global_update = false,
Expand All @@ -402,7 +411,8 @@ begin

# sol = solve(arr_prob, BBO_adaptive_de_rand_1_bin_radiuslimited(), maxiters = iters)

obj, sol_time = solve_run(arr_prob,
obj,
sol_time = solve_run(arr_prob,
BBO_adaptive_de_rand_1_bin_radiuslimited(),
iters * 100)

Expand Down
3 changes: 2 additions & 1 deletion benchmarks/adam_opt.jl
Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,8 @@ using Adapt
backend = CUDABackend()

## Initialize Particles
gbest, particles = ParallelParticleSwarms.init_particles(soptprob,
gbest,
particles = ParallelParticleSwarms.init_particles(soptprob,
ParallelSyncPSOKernel(n_particles; backend = CUDABackend()),
typeof(prob.u0))

Expand Down
5 changes: 3 additions & 2 deletions src/hybrid.jl
Original file line number Diff line number Diff line change
Expand Up @@ -47,8 +47,9 @@ function SciMLBase.solve!(
sol_bfgs = (x -> isnan(x) ? convert(eltype(prob.u0), Inf) : x).(sol_bfgs)

minobj, ind = findmin(sol_bfgs)
sol_u, sol_obj = minobj > sol_pso.objective ? (sol_pso.u, sol_pso.objective) :
(view(result, ind), minobj)
sol_u,
sol_obj = minobj > sol_pso.objective ? (sol_pso.u, sol_pso.objective) :
(view(result, ind), minobj)
t1 = time()

# @show sol_pso.stats.time
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9 changes: 6 additions & 3 deletions src/solve.jl
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,8 @@ function SciMLBase.solve!(
cache::PSOCache, opt::ParallelPSOKernel, args...; maxiters = 100, kwargs...)
prob = cache.prob
t0 = time()
gbest, particles = vectorized_solve!(cache.prob,
gbest,
particles = vectorized_solve!(cache.prob,
cache.gbest,
cache.particles,
opt,
Expand All @@ -30,7 +31,8 @@ function SciMLBase.solve!(
cache::PSOCache, opt::ParallelSyncPSOKernel, args...; maxiters = 100, kwargs...)
prob = cache.prob
t0 = time()
gbest, particles = vectorized_solve!(prob,
gbest,
particles = vectorized_solve!(prob,
cache.gbest,
cache.particles,
opt,
Expand Down Expand Up @@ -73,7 +75,8 @@ function pso_solve(prob::OptimizationProblem,
kwargs...)
init_gbest, particles = init_particles(prob, opt, typeof(prob.u0))
t0 = time()
gbest, particles = vectorized_solve!(prob,
gbest,
particles = vectorized_solve!(prob,
init_gbest,
particles,
opt,
Expand Down
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