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4 changes: 2 additions & 2 deletions Project.toml
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
name = "SpinGlassEngine"
uuid = "0563570f-ea1b-4080-8a64-041ac6565a4e"
authors = ["Anna Maria Dziubyna <[email protected]>", "Tomasz Śmierzchalski <[email protected]>", "Bartłomiej Gardas <[email protected]>", "Konrad Jałowiecki <[email protected]>", "Łukasz Pawela <[email protected]>", "Marek M. Rams <[email protected]>"]
version = "1.2.0"
version = "1.3.0"

[deps]
CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
Expand Down Expand Up @@ -32,7 +32,7 @@ MKL = "0.4.3"
NNlib = "0.9.14"
ProgressMeter = "1.10"
SpinGlassExhaustive = "1.0.0"
SpinGlassNetworks = "1.1.2"
SpinGlassNetworks = "1.2.0"
SpinGlassTensors = "1.1.3"
Statistics = "1.7.0"
TensorCast = "0.4"
Expand Down
2 changes: 1 addition & 1 deletion docs/src/guide.md
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# Introduction
A [Julia](http://julialang.org) package for finding low energy spectrum of Ising spin systems. Part of [SpinGlassPEPS](https://github.com/euro-hpc-pl/SpinGlassPEPS.jl) package.

This part of the documentation is dedicated to describing the `SpinGlassEngine.jl` package, which serves as the actual solver. First, we will demonstrate how to construct a tensor network using the clustered Hamiltonian obtained with the `SpinGlassNetworks.jl` package. Next, we discuss the parameters necessary for conducting calculations, which the user should provide. Finally, we present functions that enable the discovery of low-energy spectra.
This part of the documentation is dedicated to describing the `SpinGlassEngine.jl` package, which serves as the actual solver. First, we will demonstrate how to construct a tensor network using the Potts Hamiltonian obtained with the `SpinGlassNetworks.jl` package. Next, we discuss the parameters necessary for conducting calculations, which the user should provide. Finally, we present functions that enable the discovery of low-energy spectra.

4 changes: 2 additions & 2 deletions docs/src/params.md
Original file line number Diff line number Diff line change
Expand Up @@ -54,12 +54,12 @@ SquareSingleNode
SquareDoubleNode
```

* `SquareCrossSingleNode`
* `KingSingleNode`
```@raw html
<img src="../images/square_cross_single.png" width="50%" class="center"/>
```
```@docs
SquareCrossSingleNode
KingSingleNode
```

* `SquareCrossDoubleNode`
Expand Down
6 changes: 3 additions & 3 deletions docs/src/peps.md
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# Constructing PEPS tensor network

After creating the clustered Hamiltonian, we can turn it into a PEPS tensor network as shown in the Section [Brief description of the algorithm](../algorithm.md).
After creating the Potts Hamiltonian, we can turn it into a PEPS tensor network as shown in the Section [Brief description of the algorithm](../algorithm.md).

```@docs
PEPSNetwork
Expand All @@ -22,11 +22,11 @@ Layout = GaugesEnergy
Sparsity = Sparse

ig = ising_graph(instance)
cl_h = clustered_hamiltonian(
potts_h = potts_hamiltonian(
ig,
spectrum = full_spectrum,
cluster_assignment_rule=super_square_lattice((m, n, t))
)

net = PEPSNetwork{SquareCrossSingleNode{Layout}, Sparsity}(m, n, cl_h, transform)
net = PEPSNetwork{KingSingleNode{Layout}, Sparsity}(m, n, potts_h, transform)
```
4 changes: 2 additions & 2 deletions examples/pegasus.jl
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ function bench(instance::String, β::Real, bond_dim::Integer, num_states::Intege
δp = exp(-β * dE)
all_betas = [β / 8, β / 4, β / 2, β]

cl_h = clustered_hamiltonian(
potts_h = potts_hamiltonian(
ising_graph(instance),
spectrum = my_brute_force,
cluster_assignment_rule = pegasus_lattice((m, n, t)),
Expand All @@ -32,7 +32,7 @@ function bench(instance::String, β::Real, bond_dim::Integer, num_states::Intege
Layout = GaugesEnergy
transform = rotation(0)
Gauge = NoUpdate
net = PEPSNetwork{SquareCrossDoubleNode{Layout},Sparsity,Float64}(m, n, cl_h, transform)
net = PEPSNetwork{SquareCrossDoubleNode{Layout},Sparsity,Float64}(m, n, potts_h, transform)
ctr = MpsContractor{Strategy,Gauge,Float64}(
net,
params;
Expand Down
12 changes: 6 additions & 6 deletions examples/truncation_BP.jl
Original file line number Diff line number Diff line change
Expand Up @@ -61,24 +61,24 @@ for cs ∈ cl_states
println("Transform ", tran)
println("Iter ", iter)

cl_h = clustered_hamiltonian(
potts_h = potts_hamiltonian(
ig,
spectrum = full_spectrum, #rm _gpu to use CPU
cluster_assignment_rule = pegasus_lattice((m, n, t)),
)

@time cl_h = truncate_clustered_hamiltonian(
cl_h,
@time potts_h = truncate_potts_hamiltonian(
potts_h,
β,
cs,
results_folder,
inst;
tol = 1e-6,
iter = iter,
)
# @time cl_h = truncate_clustered_hamiltonian_2site_energy(cl_h, cs)
for v in vertices(cl_h)
println(length(get_prop(cl_h, v, :spectrum).states))
# @time potts_h = truncate_potts_hamiltonian_2site_energy(potts_h, cs)
for v in vertices(potts_h)
println(length(get_prop(potts_h, v, :spectrum).states))
end
end
end
64 changes: 32 additions & 32 deletions src/PEPS.jl
Original file line number Diff line number Diff line change
Expand Up @@ -35,20 +35,20 @@ Construct a Projected Entangled Pair States (PEPS) network.
# Arguments
- `m::Int`: Number of rows in the PEPS lattice.
- `n::Int`: Number of columns in the PEPS lattice.
- `clustered_hamiltonian::LabelledGraph`: clustered hamiltonian representing the Hamiltonian.
- `potts_hamiltonian::LabelledGraph`: Potts Hamiltonian representing the Hamiltonian.
- `transformation::LatticeTransformation`: Transformation of the PEPS lattice, as it can be rotated or reflected.
- `gauge_type::Symbol=:id`: Type of gauge to initialize (default is identity).

# Type Parameters
- `T <: AbstractGeometry`: Type of geometry for the PEPS lattice. It can be `SquareSingleNode`, `SquareDoubleNode`, `SquareCrossSingleNode`, `SquareCrossDoubleNode`.
- `T <: AbstractGeometry`: Type of geometry for the PEPS lattice. It can be `SquareSingleNode`, `SquareDoubleNode`, `KingSingleNode`, `SquareCrossDoubleNode`.
- `S <: AbstractSparsity`: Type of sparsity for the PEPS tensors: `Dense` or `Sparse`.

# Returns
An instance of PEPSNetwork{T, S}.
"""
mutable struct PEPSNetwork{T<:AbstractGeometry,S<:AbstractSparsity,R<:Real} <:
AbstractGibbsNetwork{Node,PEPSNode,R}
clustered_hamiltonian::LabelledGraph
potts_hamiltonian::LabelledGraph
vertex_map::Function
lp::PoolOfProjectors
m::Int
Expand All @@ -61,15 +61,15 @@ mutable struct PEPSNetwork{T<:AbstractGeometry,S<:AbstractSparsity,R<:Real} <:
function PEPSNetwork{T,S,R}(
m::Int,
n::Int,
clustered_hamiltonian::LabelledGraph,
potts_hamiltonian::LabelledGraph,
transformation::LatticeTransformation,
gauge_type::Symbol = :id,
) where {T<:AbstractGeometry,S<:AbstractSparsity,R<:Real}
lp = get_prop(clustered_hamiltonian, :pool_of_projectors)
net = new(clustered_hamiltonian, vertex_map(transformation, m, n), lp, m, n)
lp = get_prop(potts_hamiltonian, :pool_of_projectors)
net = new(potts_hamiltonian, vertex_map(transformation, m, n), lp, m, n)
net.nrows, net.ncols = transformation.flips_dimensions ? (n, m) : (m, n)

if !is_compatible(net.clustered_hamiltonian, T.name.wrapper(m, n))
if !is_compatible(net.potts_hamiltonian, T.name.wrapper(m, n))
throw(ArgumentError("Factor graph not compatible with given network."))
end

Expand Down Expand Up @@ -139,8 +139,8 @@ function bond_energy(
v::Node,
σ::Int,
) where {T,S,R}
cl_h_u, cl_h_v = net.vertex_map(u), net.vertex_map(v)
energies = SpinGlassNetworks.bond_energy(net.clustered_hamiltonian, cl_h_u, cl_h_v, σ)
potts_h_u, potts_h_v = net.vertex_map(u), net.vertex_map(v)
energies = SpinGlassNetworks.bond_energy(net.potts_hamiltonian, potts_h_u, potts_h_v, σ)
R.(vec(energies))
end

Expand All @@ -158,9 +158,9 @@ Compute the projector between two nodes `v` and `w` in the Gibbs network `networ
- `projector::Matrix{T}`: Projector matrix between nodes `v` and `w`.
"""
function projector(network::AbstractGibbsNetwork{S,T}, v::S, w::S) where {S,T}
cl_h = network.clustered_hamiltonian
cl_h_v, cl_h_w = network.vertex_map(v), network.vertex_map(w)
SpinGlassNetworks.projector(cl_h, cl_h_v, cl_h_w)
potts_h = network.potts_hamiltonian
potts_h_v, potts_h_w = network.vertex_map(v), network.vertex_map(w)
SpinGlassNetworks.projector(potts_h, potts_h_v, potts_h_w)
end

"""
Expand Down Expand Up @@ -215,22 +215,22 @@ $(TYPEDSIGNATURES)
Retrieve the spectrum associated with a specific vertex in the Gibbs network.

## Arguments
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the clustered Hamiltonian.
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the Potts Hamiltonian.
- `vertex::S`: Vertex for which the spectrum is to be retrieved.

## Returns
- Spectrum associated with the specified vertex.
"""
function spectrum(network::AbstractGibbsNetwork{S,T}, vertex::S) where {S,T}
get_prop(network.clustered_hamiltonian, network.vertex_map(vertex), :spectrum)
get_prop(network.potts_hamiltonian, network.vertex_map(vertex), :spectrum)
end

"""
$(TYPEDSIGNATURES)
Retrieve the local energy spectrum associated with a specific vertex in the Gibbs network.

## Arguments
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the clustered Hamiltonian.
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the Potts Hamiltonian.
- `vertex::S`: Vertex for which the local energy spectrum is to be retrieved.

## Returns
Expand All @@ -246,7 +246,7 @@ $(TYPEDSIGNATURES)
Determine the cluster size associated with a specific vertex in the Gibbs network.

## Arguments
- `net::AbstractGibbsNetwork{S, T}`: Gibbs network containing the clustered Hamiltonian.
- `net::AbstractGibbsNetwork{S, T}`: Gibbs network containing the Potts Hamiltonian.
- `v::S`: Vertex for which the cluster size is to be determined.

## Returns
Expand All @@ -261,40 +261,40 @@ $(TYPEDSIGNATURES)
Compute the interaction energy between two vertices in a Gibbs network.

## Arguments
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the clustered Hamiltonian.
- `network::AbstractGibbsNetwork{S, T}`: Gibbs network containing the Potts Hamiltonian.
- `v::S`: First vertex.
- `w::S`: Second vertex.

## Returns
- `energy::Matrix{T}`: Interaction energy matrix between vertices `v` and `w`.
"""
function interaction_energy(network::AbstractGibbsNetwork{S,T,R}, v::S, w::S) where {S,T,R}
cl_h = network.clustered_hamiltonian
cl_h_v, cl_h_w = network.vertex_map(v), network.vertex_map(w)
if has_edge(cl_h, cl_h_w, cl_h_v)
R.(get_prop(cl_h, cl_h_w, cl_h_v, :en)')
elseif has_edge(cl_h, cl_h_v, cl_h_w)
R.(get_prop(cl_h, cl_h_v, cl_h_w, :en))
potts_h = network.potts_hamiltonian
potts_h_v, potts_h_w = network.vertex_map(v), network.vertex_map(w)
if has_edge(potts_h, potts_h_w, potts_h_v)
R.(get_prop(potts_h, potts_h_w, potts_h_v, :en)')
elseif has_edge(potts_h, potts_h_v, potts_h_w)
R.(get_prop(potts_h, potts_h_v, potts_h_w, :en))
else
zeros(R, 1, 1)
end
end

"""
$(TYPEDSIGNATURES)
Check if a clustered Hamiltonian is compatible with a given network graph.
Check if a Potts Hamiltonian is compatible with a given network graph.

## Arguments
- `clustered_hamiltonian::LabelledGraph`: Graph representing the clustered Hamiltonian.
- `potts_hamiltonian::LabelledGraph`: Graph representing the Potts Hamiltonian.
- `network_graph::LabelledGraph`: Graph representing the network.

## Returns
- `compatibility::Bool`: `true` if the clustered Hamiltonian is compatible with the network graph, `false` otherwise.
- `compatibility::Bool`: `true` if the Potts Hamiltonian is compatible with the network graph, `false` otherwise.
"""
function is_compatible(clustered_hamiltonian::LabelledGraph, network_graph::LabelledGraph)
function is_compatible(potts_hamiltonian::LabelledGraph, network_graph::LabelledGraph)
all(
has_edge(network_graph, src(edge), dst(edge)) for
edge ∈ edges(clustered_hamiltonian)
edge ∈ edges(potts_hamiltonian)
)
end

Expand Down Expand Up @@ -377,18 +377,18 @@ Decode a state vector into a dictionary representation.
## Arguments
- `peps::AbstractGibbsNetwork{S, T}`: The Gibbs network.
- `σ::Vector{Int}`: State vector to be decoded.
- `cl_h_order::Bool=false`: If true, use the order of nodes in the clustered Hamiltonian.
- `potts_h_order::Bool=false`: If true, use the order of nodes in the Potts Hamiltonian.

## Returns
- `Dict{Symbol, Int}`: A dictionary mapping node symbols to corresponding values in the state vector.
"""
function decode_state(
peps::AbstractGibbsNetwork{S,T},
σ::Vector{Int},
cl_h_order::Bool = false,
potts_h_order::Bool = false,
) where {S,T}
nodes =
cl_h_order ? peps.vertex_map.(nodes_search_order_Mps(peps)) :
vertices(peps.clustered_hamiltonian)
potts_h_order ? peps.vertex_map.(nodes_search_order_Mps(peps)) :
vertices(peps.potts_hamiltonian)
Dict(nodes[1:length(σ)] .=> σ)
end
2 changes: 1 addition & 1 deletion src/SpinGlassEngine.jl
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ include("geometry.jl")
include("PEPS.jl")
include("contractor.jl")
include("square_single_node.jl")
include("square_cross_single_node.jl")
include("king_single_node.jl")
include("square_double_node.jl")
include("square_cross_double_node.jl")
include("tensors.jl")
Expand Down
2 changes: 1 addition & 1 deletion src/contractor.jl
Original file line number Diff line number Diff line change
Expand Up @@ -896,7 +896,7 @@ function boundary_indices(
states::Vector{Vector{Int}},
) where {T,S,N}
v, w = nodes
if ctr.peps.vertex_map(v) ∈ vertices(ctr.peps.clustered_hamiltonian)
if ctr.peps.vertex_map(v) ∈ vertices(ctr.peps.potts_hamiltonian)
@inbounds idx = [σ[ctr.node_search_index[v]] for σ ∈ states]
return @inbounds projector(ctr.peps, v, w)[idx]
end
Expand Down
2 changes: 1 addition & 1 deletion src/geometry.jl
Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@ const Node = NTuple{N,Int} where {N}
"""
$(TYPEDSIGNATURES)

Node for the SquareSingleNode and SquareCrossSingleNode.
Node for the SquareSingleNode and KingSingleNode.
"""
struct PEPSNode
i::Site
Expand Down
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