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https://igit.ific.uv.es/alramos/latticegpu.jl.git
synced 2025-05-14 19:23:42 +02:00
110 lines
2.7 KiB
Julia
110 lines
2.7 KiB
Julia
using CUDA, Logging, StructArrays, Random, TimerOutputs
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CUDA.allowscalar(false)
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import Pkg
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Pkg.activate("/lhome/ific/a/alramos/s.images/julia/workspace/LatticeGPU")
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#Pkg.activate("/home/alberto/code/julia/LatticeGPU")
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using LatticeGPU
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# Set lattice/block size
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lp = SpaceParm{4}((16,16,16,16), (4,4,4,4))
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println("Space Parameters: ", lp)
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# Seed RNG
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println("Seeding CURAND...")
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Random.seed!(CURAND.default_rng(), 1234)
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Random.seed!(1234)
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# Set group and precision
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GRP = SU3
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ALG = SU3alg
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PREC = Float64
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println("Precision: ", PREC)
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println("Allocating YM workspace")
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ymws = YMworkspace(GRP, PREC, lp)
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# Main program
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println("Allocating gauge field")
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U = vector_field(GRP{PREC}, lp)
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fill!(U, one(GRP{PREC}))
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println("Time to take the configuration to memory: ")
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@time Ucpu = Array(U)
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# Set gauge parameters
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# FIRST SET: Wilson action/flow
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println("\n## WILSON ACTION/FLOW TIMES")
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gp = GaugeParm{PREC}(6.0, 1.0, (0.0,0.0), 3)
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println("Gauge Parameters: ", gp)
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println("Initial Action: ")
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@time S = gauge_action(U, lp, gp, ymws)
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dt = 0.1
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ns = 10
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HMC!(U,dt,1,lp, gp, ymws, noacc=true)
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pl = Vector{Float64}()
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for i in 1:4
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@time dh, acc = HMC!(U,dt,ns,lp, gp, ymws, noacc=true)
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println("# HMC: ", acc, " ", dh)
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push!(pl, plaquette(U,lp, gp, ymws))
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println("# Plaquette: ", pl[end], "\n")
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end
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wfl_rk3(U, 1, 0.01, lp, ymws)
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println("Action: ", gauge_action(U, lp, gp, ymws))
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println("Time for 100 steps of RK3 flow integrator: ")
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@time wfl_rk3(U, 100, 0.01, lp, ymws)
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eoft = Eoft_plaq(U, gp, lp, ymws)
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eoft = Eoft_clover(U, lp, ymws)
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qtop = Qtop(U, lp, ymws)
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@time eoft = Eoft_plaq(U, gp, lp, ymws)
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println("Plaq: ", eoft)
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@time eoft = Eoft_clover(U, lp, ymws)
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println("Clov: ", eoft)
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@time qtop = Qtop(U, lp, ymws)
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println("Qtop: ", qtop)
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println("Action: ", gauge_action(U, lp, gp, ymws))
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println("## END Wilson action/flow measurements")
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# Set gauge parameters
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# SECOND SET: Improved action/flow
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println("\n## IMPROVED ACTION/FLOW TIMES")
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gp = GaugeParm{PREC}(6.0, 5.0/3.0, (0.0,0.0), 3)
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println("Gauge Parameters: ", gp)
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println("Initial Action: ")
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@time S = gauge_action(U, lp, gp, ymws)
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dt = 0.1
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ns = 10
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HMC!(U,dt,1,lp, gp, ymws, noacc=true)
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pl = Vector{Float64}()
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for i in 1:4
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@time dh, acc = HMC!(U,dt,ns,lp, gp, ymws, noacc=true)
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println("# HMC: ", acc, " ", dh)
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push!(pl, plaquette(U,lp, gp, ymws))
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println("# Plaquette: ", pl[end], "\n")
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end
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zfl_rk3(U, 1, 0.01, lp, ymws)
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println("Action: ", gauge_action(U, lp, gp, ymws))
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println("Time for 100 steps of RK3 flow integrator: ")
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@time zfl_rk3(U, 100, 0.01, lp, ymws)
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println("Action: ", gauge_action(U, lp, gp, ymws))
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println("## END improved action/flow measurements")
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print_timer(linechars = :ascii)
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println("END")
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