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Network solvers redesign #242

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Network solvers redesign #242

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eef7d0f
Delete and move some files to make space for new code
emstoudenmire Apr 1, 2025
b15d045
Add redesigned solver codes
emstoudenmire Apr 2, 2025
3edcc3d
Update solvers codes to latest versions
emstoudenmire Jul 1, 2025
8930d80
Remove previous solver includes
emstoudenmire Jul 1, 2025
9235349
Add ConstructionBase dependency
emstoudenmire Jul 1, 2025
d70bf03
Adapt new solver codes into ITensorNetworks module
emstoudenmire Jul 1, 2025
c081dfb
Continue adapting code and improve DMRG test
emstoudenmire Jul 2, 2025
e5047fc
Rename tdvp to time_evolve. Add tests.
emstoudenmire Jul 2, 2025
3f7442f
Change default outputlevel in tests
emstoudenmire Jul 2, 2025
0a4db77
Improve time_steps calculation code
emstoudenmire Jul 5, 2025
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2 changes: 2 additions & 0 deletions Project.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ version = "0.13.12"
AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"
Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
ConstructionBase = "187b0558-2788-49d3-abe0-74a17ed4e7c9"
DataGraphs = "b5a273c3-7e6c-41f6-98bd-8d7f1525a36a"
DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
Dictionaries = "85a47980-9c8c-11e8-2b9f-f7ca1fa99fb4"
Expand Down Expand Up @@ -53,6 +54,7 @@ AbstractTrees = "0.4.4"
Adapt = "4"
Combinatorics = "1"
Compat = "3, 4"
ConstructionBase = "1.6.0"
DataGraphs = "0.2.3"
DataStructures = "0.18"
Dictionaries = "0.4"
Expand Down
39 changes: 22 additions & 17 deletions src/ITensorNetworks.jl
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Expand Up @@ -34,11 +34,7 @@ include("formnetworks/quadraticformnetwork.jl")
include("gauging.jl")
include("utils.jl")
include("update_observer.jl")
include("solvers/local_solvers/eigsolve.jl")
include("solvers/local_solvers/exponentiate.jl")
include("solvers/local_solvers/dmrg_x.jl")
include("solvers/local_solvers/contract.jl")
include("solvers/local_solvers/linsolve.jl")

include("treetensornetworks/abstracttreetensornetwork.jl")
include("treetensornetworks/treetensornetwork.jl")
include("treetensornetworks/opsum_to_ttn/matelem.jl")
Expand All @@ -48,18 +44,27 @@ include("treetensornetworks/projttns/abstractprojttn.jl")
include("treetensornetworks/projttns/projttn.jl")
include("treetensornetworks/projttns/projttnsum.jl")
include("treetensornetworks/projttns/projouterprodttn.jl")
include("solvers/solver_utils.jl")
include("solvers/defaults.jl")
include("solvers/insert/insert.jl")
include("solvers/extract/extract.jl")
include("solvers/alternating_update/alternating_update.jl")
include("solvers/alternating_update/region_update.jl")
include("solvers/tdvp.jl")
include("solvers/dmrg.jl")
include("solvers/dmrg_x.jl")
include("solvers/contract.jl")
include("solvers/linsolve.jl")
include("solvers/sweep_plans/sweep_plans.jl")

include("solvers/local_solvers/eigsolve.jl")
include("solvers/local_solvers/exponentiate.jl")
include("solvers/local_solvers/runge_kutta.jl")
include("solvers/truncation_parameters.jl")
include("solvers/iterators.jl")
include("solvers/adapters.jl")
include("solvers/sweep_solve.jl")
include("solvers/region_plans/dfs_plans.jl")
include("solvers/region_plans/euler_tour.jl")
include("solvers/region_plans/euler_plans.jl")
include("solvers/region_plans/tdvp_region_plans.jl")
include("solvers/extracter.jl")
include("solvers/inserter.jl")
include("solvers/subspace/subspace.jl")
include("solvers/subspace/densitymatrix.jl")
include("solvers/permute_indices.jl")
include("solvers/operator_map.jl")
include("solvers/eigsolve.jl")
include("solvers/applyexp.jl")

include("apply.jl")
include("inner.jl")
include("normalize.jl")
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32 changes: 32 additions & 0 deletions src/solvers/adapters.jl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@

#
# TupleRegionIterator
#
# Adapts outputs to be (region, region_kwargs) tuples
#
# More generic design? maybe just assuming RegionIterator
# or its outputs implement some interface function that
# generates each tuple?
#

mutable struct TupleRegionIterator{RegionIter}
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@mtfishman mtfishman Jul 2, 2025 •
edited
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Maybe we can come up with a name that is more descriptive, like RegionIteratorWithKwargs. Tuple is a bit vague.

region_iterator::RegionIter
end

region_iterator(T::TupleRegionIterator) = T.region_iterator

function Base.iterate(T::TupleRegionIterator, which=1)
state = iterate(region_iterator(T), which)
isnothing(state) && return nothing
(current_region, region_kwargs) = current_region_plan(region_iterator(T))
return (current_region, region_kwargs), last(state)
end

"""
region_tuples(R::RegionIterator)

The `region_tuples` adapter converts a RegionIterator into an
iterator which outputs a tuple of the form (current_region, current_region_kwargs)
at each step.
"""
region_tuples(R::RegionIterator) = TupleRegionIterator(R)
143 changes: 0 additions & 143 deletions src/solvers/alternating_update/alternating_update.jl
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77 changes: 0 additions & 77 deletions src/solvers/alternating_update/region_update.jl
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