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Add normalize flag in default message update #195

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merged 4 commits into from
Sep 3, 2024
Merged

Add normalize flag in default message update #195

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f221b70
Add normalzie flag in default message update
JoeyT1994 Aug 8, 2024
5bcb060
Merge branch 'main' into normalize_support_bp_update
JoeyT1994 Aug 8, 2024
b747e95
Formatting
JoeyT1994 Aug 8, 2024
3cbe1ce
Bug fix
JoeyT1994 Aug 8, 2024
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4 changes: 2 additions & 2 deletions src/caches/beliefpropagationcache.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -16,11 +16,11 @@ using NDTensors: NDTensors

default_message(elt, inds_e) = ITensor[denseblocks(delta(elt, i)) for i in inds_e]
default_messages(ptn::PartitionedGraph) = Dictionary()
function default_message_update(contract_list::Vector{ITensor}; kwargs...)
function default_message_update(contract_list::Vector{ITensor}; normalize=true, kwargs...)
sequence = optimal_contraction_sequence(contract_list)
updated_messages = contract(contract_list; sequence, kwargs...)
message_norm = norm(updated_messages)
if !iszero(message_norm)
if normalize && !iszero(message_norm)
updated_messages /= message_norm
end
return ITensor[updated_messages]
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