1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/**CFile****************************************************************
FileName [cswMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Cut sweeping.]
Synopsis []
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - July 11, 2007.]
Revision [$Id: cswMan.c,v 1.00 2007/07/11 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cswInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Starts the cut sweeping manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Csw_Man_t * Csw_ManStart( Aig_Man_t * pMan, int nCutsMax, int nLeafMax, int fVerbose )
{
Csw_Man_t * p;
Aig_Obj_t * pObj;
int i;
assert( nCutsMax >= 2 );
assert( nLeafMax <= 16 );
// allocate the fraiging manager
p = ABC_ALLOC( Csw_Man_t, 1 );
memset( p, 0, sizeof(Csw_Man_t) );
p->nCutsMax = nCutsMax;
p->nLeafMax = nLeafMax;
p->fVerbose = fVerbose;
p->pManAig = pMan;
// create the new manager
p->pManRes = Aig_ManStartFrom( pMan );
assert( Aig_ManPiNum(p->pManAig) == Aig_ManPiNum(p->pManRes) );
// allocate room for cuts and equivalent nodes
p->pnRefs = ABC_ALLOC( int, Aig_ManObjNumMax(pMan) );
p->pEquiv = ABC_ALLOC( Aig_Obj_t *, Aig_ManObjNumMax(pMan) );
p->pCuts = ABC_ALLOC( Csw_Cut_t *, Aig_ManObjNumMax(pMan) );
memset( p->pCuts, 0, sizeof(Aig_Obj_t *) * Aig_ManObjNumMax(pMan) );
memset( p->pnRefs, 0, sizeof(int) * Aig_ManObjNumMax(pMan) );
// allocate memory manager
p->nTruthWords = Abc_TruthWordNum(nLeafMax);
p->nCutSize = sizeof(Csw_Cut_t) + sizeof(int) * nLeafMax + sizeof(unsigned) * p->nTruthWords;
p->pMemCuts = Aig_MmFixedStart( p->nCutSize * p->nCutsMax, 512 );
// allocate hash table for cuts
p->nTableSize = Abc_PrimeCudd( Aig_ManNodeNum(pMan) * p->nCutsMax / 2 );
p->pTable = ABC_ALLOC( Csw_Cut_t *, p->nTableSize );
memset( p->pTable, 0, sizeof(Aig_Obj_t *) * p->nTableSize );
// set the pointers to the available fraig nodes
Csw_ObjSetEquiv( p, Aig_ManConst1(p->pManAig), Aig_ManConst1(p->pManRes) );
Aig_ManForEachCi( p->pManAig, pObj, i )
Csw_ObjSetEquiv( p, pObj, Aig_ManPi(p->pManRes, i) );
// room for temporary truth tables
p->puTemp[0] = ABC_ALLOC( unsigned, 4 * p->nTruthWords );
p->puTemp[1] = p->puTemp[0] + p->nTruthWords;
p->puTemp[2] = p->puTemp[1] + p->nTruthWords;
p->puTemp[3] = p->puTemp[2] + p->nTruthWords;
return p;
}
/**Function*************************************************************
Synopsis [Stops the fraiging manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Csw_ManStop( Csw_Man_t * p )
{
if ( p->fVerbose )
{
int nNodesBeg = Aig_ManNodeNum(p->pManAig);
int nNodesEnd = Aig_ManNodeNum(p->pManRes);
printf( "Beg = %7d. End = %7d. (%6.2f %%) Try = %7d. Cuts = %8d.\n",
nNodesBeg, nNodesEnd, 100.0*(nNodesBeg-nNodesEnd)/nNodesBeg,
p->nNodesTried, Csw_TableCountCuts( p ) );
printf( "Triv0 = %6d. Triv1 = %6d. Triv2 = %6d. Cut-replace = %6d.\n",
p->nNodesTriv0, p->nNodesTriv1, p->nNodesTriv2, p->nNodesCuts );
ABC_PRTP( "Cuts ", p->timeCuts, p->timeTotal );
ABC_PRTP( "Hashing ", p->timeHash, p->timeTotal );
ABC_PRTP( "Other ", p->timeOther, p->timeTotal );
ABC_PRTP( "TOTAL ", p->timeTotal, p->timeTotal );
}
ABC_FREE( p->puTemp[0] );
Aig_MmFixedStop( p->pMemCuts, 0 );
ABC_FREE( p->pnRefs );
ABC_FREE( p->pEquiv );
ABC_FREE( p->pCuts );
ABC_FREE( p->pTable );
ABC_FREE( p );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
