Version abc80130_2

1 files changed, 78 insertions, 0 deletions

diff --git a/src/phys/place/place_gordian.h b/src/phys/place/place_gordian.h
new file mode 100644
index 00000000..67eb1479
--- /dev/null
+++ b/src/phys/place/place_gordian.h
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+/*===================================================================*/
+//  
+//     place_gordian.h
+//
+//        Aaron P. Hurst, 2003-2007
+//              ahurst@eecs.berkeley.edu
+//
+/*===================================================================*/
+
+#if !defined(PLACE_GORDIAN_H_)
+#define PLACE_GORDIAN_H_
+
+#include "place_base.h"
+#include "place_qpsolver.h"
+
+// Parameters for analytic placement
+#define CLIQUE_PENALTY 1.0
+#define IGNORE_NETSIZE 20
+
+// Parameters for partitioning
+#define LARGEST_FINAL_SIZE 20
+#define PARTITION_AREA_ONLY true
+#define REALLOCATE_PARTITIONS false
+#define FINAL_REALLOCATE_PARTITIONS false
+#define IGNORE_COG false
+#define MAX_PARTITION_NONSYMMETRY 0.30
+
+// Parameters for re-partitioning
+#define REPARTITION_LEVEL_DEPTH 4
+#define REPARTITION_TARGET_FRACTION 0.15
+#define REPARTITION_FM false
+#define REPARTITION_HMETIS true
+
+// Parameters for F-M re-partitioning
+#define FM_MAX_BIN 10
+#define FM_MAX_PASSES 10
+
+extern int g_place_numPartitions;
+
+extern qps_problem_t *g_place_qpProb;
+
+typedef struct Partition {
+
+  int               m_numMembers;
+  ConcreteCell    **m_members;
+  Rect              m_bounds;
+  bool              m_done, 
+                    m_leaf, 
+                    m_vertical;
+  float             m_area;
+  int               m_level;
+  struct Partition *m_sub1, *m_sub2;
+} Partition;
+
+extern Partition *g_place_rootPartition;
+
+void initPartitioning();
+
+void incrementalPartition();
+
+bool refinePartitions();
+void reallocPartitions();
+bool refinePartition(Partition *p);
+void resizePartition(Partition *p);
+void reallocPartition(Partition *p);
+
+void repartitionHMetis(Partition *parent);
+void repartitionFM(Partition *parent);
+
+void partitionScanlineMincut(Partition *parent);
+void partitionEqualArea(Partition *parent);
+
+void sanitizePlacement();
+
+void constructQuadraticProblem();
+void solveQuadraticProblem(bool useCOG);
+
+#endif