Experiments with hashing.

abclib.dsp

@@ -1083,6 +1083,10 @@ SOURCE=.\src\base\acb\acbPar.h
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\base\acb\acbSets.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\base\acb\acbUtil.c
 # End Source File
 # End Group
@@ -4551,6 +4555,10 @@ SOURCE=.\src\aig\gia\giaCTas.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\aig\gia\giaCut.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\aig\gia\giaDfs.c
 # End Source File
 # Begin Source File

src/base/abci/abc.c

@@ -12385,6 +12385,7 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
 //        Cba_PrsReadBlifTest();
     }
 //    Abc_NtkComputePaths( Abc_FrameReadNtk(pAbc) );
+    Acb_DataReadTest();
     return 0;
 usage:
     Abc_Print( -2, "usage: test [-CKDNM] [-aovwh] <file_name>\n" );

src/base/acb/acbSets.c

@@ -0,0 +1,54 @@
+/**CFile****************************************************************
+
+  FileName    [acbSets.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Hierarchical word-level netlist.]
+
+  Synopsis    [Reading data from file.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - July 21, 2015.]
+
+  Revision    [$Id: acbSets.c,v 1.00 2014/11/29 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "acb.h"
+
+ABC_NAMESPACE_IMPL_START
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Acb_DataReadTest()
+{
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+

src/base/acb/acbUtil.c

@@ -455,7 +455,7 @@ void Acb_NtkSaveSupport( Acb_Ntk_t * p, int iObj )
 }
 void Acb_NtkUpdateNode( Acb_Ntk_t * p, int Pivot, word uTruth, Vec_Int_t * vSupp )
 {
-    int Level = Acb_ObjLevelD(p, Pivot);
+    //int Level = Acb_ObjLevelD(p, Pivot);
     Acb_NtkSaveSupport( p, Pivot );
     //Acb_NtkPrintNode( p, Pivot );
     Acb_NtkResetNode( p, Pivot, uTruth, vSupp );

src/base/acb/module.make

@@ -3,4 +3,5 @@ SRC +=    src/base/acb/acbAbc.c \
     src/base/acb/acbCom.c \
     src/base/acb/acbFunc.c \
     src/base/acb/acbMfs.c \
+    src/base/acb/acbSets.c \
     src/base/acb/acbUtil.c 

src/misc/vec/vecHsh.h

@@ -140,7 +140,24 @@ static inline int Hsh_IntManEntryNum( Hsh_IntMan_t * p )
   SeeAlso     []
 
 ***********************************************************************/
-static inline int Hsh_IntManHash( unsigned * pData, int nSize, int nTableSize )
+// https://en.wikipedia.org/wiki/Jenkins_hash_function
+static inline int Hsh_IntManHash( unsigned * pData, int nSize, int nTableSize ) 
+{
+    int i = 0; unsigned hash = 0;
+    unsigned char * pDataC = (unsigned char *)pData;
+    nSize <<= 2;
+    while ( i != nSize ) 
+    {
+        hash += pDataC[i++];
+        hash += hash << 10;
+        hash ^= hash >> 6;
+    }
+    hash += hash << 3;
+    hash ^= hash >> 11;
+    hash += hash << 15;
+    return (int)(hash % nTableSize);
+}
+static inline int Hsh_IntManHash2( unsigned * pData, int nSize, int nTableSize )
 {
     static int s_Primes[7] = { 4177, 5147, 5647, 6343, 7103, 7873, 8147 };
     unsigned char * pDataC = (unsigned char *)pData;