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Update bidirectional_pattern #230

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Merged
gdalle merged 2 commits into from
Apr 4, 2025
Merged

Update bidirectional_pattern #230

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0779da5
Update bidirectional_pattern
amontoison Apr 3, 2025
95b4b53
Merge branch 'main' into amontoison-patch-1
amontoison Apr 4, 2025
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8 changes: 4 additions & 4 deletions src/graph.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -148,23 +148,23 @@ function bidirectional_pattern(S::SparsityPatternCSC{T}; symmetric_pattern::Bool
counter = 1
for col in (n + 1):p
nnz_col = colptr[col]
colptr[col] = counter
colptr[col] = nnzS + counter
counter += nnz_col
end

for j in 1:n
for index in S.colptr[j]:(S.colptr[j + 1] - 1)
i = S.rowval[index]
pos = colptr[n + i]
rowval[nnzS + pos] = j
edge_to_index[nnzS + pos] = edge_to_index[index]
rowval[pos] = j
edge_to_index[pos] = edge_to_index[index]
colptr[n + i] += 1
end
end

colptr[p + 1] = nnzS + counter
for col in p:-1:(n + 2)
colptr[col] = nnzS + colptr[col - 1]
colptr[col] = colptr[col - 1]
end
colptr[n + 1] = nnzS + 1
end
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