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Leverage execution policies inside dbAsIfFlatRegion object traversal #2365

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Leverage execution policies inside dbAsIfFlatRegion object traversal #2365

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10 changes: 9 additions & 1 deletion src/db/db/dbAsIfFlatRegion.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,14 @@
#include "dbLayoutToNetlist.h"

#include <sstream>
#include <algorithm>

#if defined(__cpp_lib_execution)
#include <execution>
#define PARALLEL_EXEC_POLICY std::execution::par,
#else
#define PARALLEL_EXEC_POLICY
#endif

namespace db
{
Expand Down Expand Up @@ -440,7 +448,7 @@ void AsIfFlatRegion::merge_polygons_to (db::Shapes &output, bool min_coherence,
addressable_polygons.inc ();
}

std::sort (polygons_by_prop_id.begin (), polygons_by_prop_id.end (), ComparePolygonsWithProperties ());
std::sort (PARALLEL_EXEC_POLICY polygons_by_prop_id.begin (), polygons_by_prop_id.end (), ComparePolygonsWithProperties ());

for (auto p = polygons_by_prop_id.begin (); p != polygons_by_prop_id.end (); ) {

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