rwtMan.c 9.45 KB
Newer Older
Alan Mishchenko committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
/**CFile****************************************************************

  FileName    [rwtMan.c]

  SystemName  [ABC: Logic synthesis and verification system.]

  PackageName [DAG-aware AIG rewriting package.]

  Synopsis    [Rewriting manager.]

  Author      [Alan Mishchenko]
  
  Affiliation [UC Berkeley]

  Date        [Ver. 1.0. Started - June 20, 2005.]

  Revision    [$Id: rwtMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]

***********************************************************************/

#include "rwt.h"
22
#include "bool/deco/deco.h"
Alan Mishchenko committed
23

24 25 26
ABC_NAMESPACE_IMPL_START


Alan Mishchenko committed
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
////////////////////////////////////////////////////////////////////////
///                        DECLARATIONS                              ///
////////////////////////////////////////////////////////////////////////

static unsigned short * s_puCanons = NULL; 
static char *           s_pPhases = NULL; 
static char *           s_pPerms = NULL; 
static unsigned char *  s_pMap = NULL;

////////////////////////////////////////////////////////////////////////
///                     FUNCTION DEFINITIONS                         ///
////////////////////////////////////////////////////////////////////////

/**Function*************************************************************

  Synopsis    [Starts residual rewriting manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_ManGlobalStart()
{ 
    if ( s_puCanons == NULL )
        Extra_Truth4VarNPN( &s_puCanons, &s_pPhases, &s_pPerms, &s_pMap );
}

/**Function*************************************************************

  Synopsis    [Starts residual rewriting manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_ManGlobalStop()
{ 
Alan Mishchenko committed
70 71 72 73
    ABC_FREE( s_puCanons );
    ABC_FREE( s_pPhases );
    ABC_FREE( s_pPerms );
    ABC_FREE( s_pMap );
Alan Mishchenko committed
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89
} 

/**Function*************************************************************

  Synopsis    [Starts rewriting manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
Rwt_Man_t * Rwt_ManStart( int fPrecompute )
{
    Rwt_Man_t * p;
90 91
    abctime clk = Abc_Clock();
clk = Abc_Clock();
Alan Mishchenko committed
92
    p = ABC_ALLOC( Rwt_Man_t, 1 );
Alan Mishchenko committed
93 94 95 96 97 98 99 100 101 102 103
    memset( p, 0, sizeof(Rwt_Man_t) );
    p->nFuncs = (1<<16);
    // copy the global tables
    Rwt_ManGlobalStart();
    p->puCanons = s_puCanons; 
    p->pPhases  = s_pPhases; 
    p->pPerms   = s_pPerms; 
    p->pMap     = s_pMap; 
    // initialize practical NPN classes
    p->pPractical  = Rwt_ManGetPractical( p );
    // create the table
Alan Mishchenko committed
104
    p->pTable = ABC_ALLOC( Rwt_Node_t *, p->nFuncs );
Alan Mishchenko committed
105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
    memset( p->pTable, 0, sizeof(Rwt_Node_t *) * p->nFuncs );
    // create the elementary nodes
    p->pMmNode  = Mem_FixedStart( sizeof(Rwt_Node_t) );
    p->vForest  = Vec_PtrAlloc( 100 );
    Rwt_ManAddVar( p, 0x0000, fPrecompute ); // constant 0
    Rwt_ManAddVar( p, 0xAAAA, fPrecompute ); // var A
    Rwt_ManAddVar( p, 0xCCCC, fPrecompute ); // var B
    Rwt_ManAddVar( p, 0xF0F0, fPrecompute ); // var C
    Rwt_ManAddVar( p, 0xFF00, fPrecompute ); // var D
    p->nClasses = 5;
    // other stuff
    p->nTravIds   = 1;
    p->pPerms4    = Extra_Permutations( 4 );
    p->vLevNums   = Vec_IntAlloc( 50 );
    p->vFanins    = Vec_PtrAlloc( 50 );
    p->vFaninsCur = Vec_PtrAlloc( 50 );
    p->vNodesTemp = Vec_PtrAlloc( 50 );
    if ( fPrecompute )
    {   // precompute subgraphs
//        Rwt_ManPrecompute( p );
//        Rwt_ManPrint( p );
//        Rwt_ManWriteToArray( p );
    }
    else
    {   // load saved subgraphs
        Rwt_ManLoadFromArray( p, 0 );
//        Rwt_ManPrint( p );
        Rwt_ManPreprocess( p );
    }
134
p->timeStart = Abc_Clock() - clk;
Alan Mishchenko committed
135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154
    return p;
}

/**Function*************************************************************

  Synopsis    [Stops rewriting manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_ManStop( Rwt_Man_t * p )
{
    if ( p->vClasses )
    {
        Rwt_Node_t * pNode;
        int i, k;
155
        Vec_VecForEachEntry( Rwt_Node_t *, p->vClasses, pNode, i, k )
Alan Mishchenko committed
156 157 158 159 160 161 162 163 164
            Dec_GraphFree( (Dec_Graph_t *)pNode->pNext );
    }
    if ( p->vClasses )  Vec_VecFree( p->vClasses );
    Vec_PtrFree( p->vNodesTemp );
    Vec_PtrFree( p->vForest );
    Vec_IntFree( p->vLevNums );
    Vec_PtrFree( p->vFanins );
    Vec_PtrFree( p->vFaninsCur );
    Mem_FixedStop( p->pMmNode, 0 );
Alan Mishchenko committed
165 166 167 168 169
    ABC_FREE( p->pMapInv );
    ABC_FREE( p->pTable );
    ABC_FREE( p->pPractical );
    ABC_FREE( p->pPerms4 );
    ABC_FREE( p );
Alan Mishchenko committed
170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_ManPrintStats( Rwt_Man_t * p )
{
    int i, Counter = 0;
    for ( i = 0; i < 222; i++ )
        Counter += (p->nScores[i] > 0);

    printf( "Rewriting statistics:\n" );
    printf( "Total cuts tries  = %8d.\n", p->nCutsGood );
    printf( "Bad cuts found    = %8d.\n", p->nCutsBad );
    printf( "Total subgraphs   = %8d.\n", p->nSubgraphs );
    printf( "Used NPN classes  = %8d.\n", Counter );
    printf( "Nodes considered  = %8d.\n", p->nNodesConsidered );
    printf( "Nodes rewritten   = %8d.\n", p->nNodesRewritten );
    printf( "Calculated gain   = %8d.\n", p->nNodesGained     );
Alan Mishchenko committed
197 198 199 200 201 202 203 204
    ABC_PRT( "Start       ", p->timeStart );
    ABC_PRT( "Cuts        ", p->timeCut );
    ABC_PRT( "Truth       ", p->timeTruth );
    ABC_PRT( "Resynthesis ", p->timeRes );
    ABC_PRT( "    Mffc    ", p->timeMffc );
    ABC_PRT( "    Eval    ", p->timeEval );
    ABC_PRT( "Update      ", p->timeUpdate );
    ABC_PRT( "TOTAL       ", p->timeTotal );
Alan Mishchenko committed
205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300

/*
    printf( "The scores are:\n" );
    for ( i = 0; i < 222; i++ )
        if ( p->nScores[i] > 0 )
        {
            extern void Ivy_TruthDsdComputePrint( unsigned uTruth );
            printf( "%3d = %8d  canon = %5d  ", i, p->nScores[i], p->pMapInv[i] );
            Ivy_TruthDsdComputePrint( (unsigned)p->pMapInv[i] | ((unsigned)p->pMapInv[i] << 16) );
        }
    printf( "\n" );
*/
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_ManPrintStatsFile( Rwt_Man_t * p )
{
    FILE * pTable;
    pTable = fopen( "stats.txt", "a+" );
    fprintf( pTable, "%d ", p->nCutsGood );
    fprintf( pTable, "%d ", p->nSubgraphs );
    fprintf( pTable, "%d ", p->nNodesRewritten );
    fprintf( pTable, "%d", p->nNodesGained );
    fprintf( pTable, "\n" );
    fclose( pTable );
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void * Rwt_ManReadDecs( Rwt_Man_t * p )
{
    return p->pGraph;
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
Vec_Ptr_t * Rwt_ManReadLeaves( Rwt_Man_t * p )
{
    return p->vFanins;
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
int Rwt_ManReadCompl( Rwt_Man_t * p )
{
    return p->fCompl;
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
301
void Rwt_ManAddTimeCuts( Rwt_Man_t * p, abctime Time )
Alan Mishchenko committed
302 303 304 305 306 307 308 309 310 311 312 313 314 315 316
{
    p->timeCut += Time;
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
317
void Rwt_ManAddTimeUpdate( Rwt_Man_t * p, abctime Time )
Alan Mishchenko committed
318 319 320 321 322 323 324 325 326 327 328 329 330 331 332
{
    p->timeUpdate += Time;
}

/**Function*************************************************************

  Synopsis    [Stops the resynthesis manager.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
333
void Rwt_ManAddTimeTotal( Rwt_Man_t * p, abctime Time )
Alan Mishchenko committed
334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
{
    p->timeTotal += Time;
}


/**Function*************************************************************

  Synopsis    [Precomputes AIG subgraphs.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Rwt_Precompute()
{
    Rwt_Man_t * p;
    p = Rwt_ManStart( 1 );
    Rwt_ManStop( p );
}

////////////////////////////////////////////////////////////////////////
///                       END OF FILE                                ///
////////////////////////////////////////////////////////////////////////


362 363
ABC_NAMESPACE_IMPL_END