diff options
Diffstat (limited to 'src/base/abci/abcFraig.c')
-rw-r--r-- | src/base/abci/abcFraig.c | 446 |
1 files changed, 116 insertions, 330 deletions
diff --git a/src/base/abci/abcFraig.c b/src/base/abci/abcFraig.c index be8a25f1..a11e6eef 100644 --- a/src/base/abci/abcFraig.c +++ b/src/base/abci/abcFraig.c @@ -26,19 +26,16 @@ /// DECLARATIONS /// //////////////////////////////////////////////////////////////////////// -extern Abc_Ntk_t * Abc_NtkFromFraig( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ); -static Abc_Ntk_t * Abc_NtkFromFraig2( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ); -static Abc_Obj_t * Abc_NodeFromFraig_rec( Abc_Ntk_t * pNtkNew, Fraig_Node_t * pNodeFraig ); -static void Abc_NtkFromFraig2_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, Vec_Ptr_t * vNodeReprs ); -extern Fraig_Node_t * Abc_NtkToFraigExdc( Fraig_Man_t * pMan, Abc_Ntk_t * pNtkMain, Abc_Ntk_t * pNtkExdc ); -static void Abc_NtkFraigRemapUsingExdc( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ); - -static int Abc_NtkFraigTrustCheck( Abc_Ntk_t * pNtk ); -static void Abc_NtkFraigTrustOne( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew ); -static Abc_Obj_t * Abc_NodeFraigTrust( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode ); +extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes ); +static Abc_Ntk_t * Abc_NtkFromFraig( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ); +static Abc_Obj_t * Abc_NodeFromFraig_rec( Abc_Ntk_t * pNtkNew, Fraig_Node_t * pNodeFraig ); + +static int Abc_NtkFraigTrustCheck( Abc_Ntk_t * pNtk ); +static void Abc_NtkFraigTrustOne( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew ); +static Abc_Obj_t * Abc_NodeFraigTrust( Abc_Aig_t * pMan, Abc_Obj_t * pNode ); //////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// +/// FUNCTION DEFITIONS /// //////////////////////////////////////////////////////////////////////// /**Function************************************************************* @@ -52,30 +49,19 @@ static Abc_Obj_t * Abc_NodeFraigTrust( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode SeeAlso [] ***********************************************************************/ -Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int fExdc ) +Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes ) { Fraig_Params_t * pPars = pParams; Abc_Ntk_t * pNtkNew; - Fraig_Man_t * pMan; - // check if EXDC is present - if ( fExdc && pNtk->pExdc == NULL ) - fExdc = 0, printf( "Warning: Networks has no EXDC.\n" ); + Fraig_Man_t * pMan; // perform fraiging - pMan = Abc_NtkToFraig( pNtk, pParams, fAllNodes, fExdc ); - // add algebraic choices -// if ( pPars->fChoicing ) -// Fraig_ManAddChoices( pMan, 0, 6 ); + pMan = Abc_NtkToFraig( pNtk, pParams, fAllNodes ); // prove the miter if asked to if ( pPars->fTryProve ) Fraig_ManProveMiter( pMan ); // reconstruct FRAIG in the new network - if ( fExdc ) - pNtkNew = Abc_NtkFromFraig2( pMan, pNtk ); - else - pNtkNew = Abc_NtkFromFraig( pMan, pNtk ); + pNtkNew = Abc_NtkFromFraig( pMan, pNtk ); Fraig_ManFree( pMan ); - if ( pNtk->pExdc ) - pNtkNew->pExdc = Abc_NtkDup( pNtk->pExdc ); // make sure that everything is okay if ( !Abc_NtkCheck( pNtkNew ) ) { @@ -97,13 +83,13 @@ Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int f SeeAlso [] ***********************************************************************/ -void * Abc_NtkToFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int fExdc ) +Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes ) { - int fInternal = ((Fraig_Params_t *)pParams)->fInternal; Fraig_Man_t * pMan; ProgressBar * pProgress; + Fraig_Node_t * pNodeFraig; Vec_Ptr_t * vNodes; - Abc_Obj_t * pNode; + Abc_Obj_t * pNode, * pConst1, * pReset; int i; assert( Abc_NtkIsStrash(pNtk) ); @@ -111,35 +97,36 @@ void * Abc_NtkToFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int fExd // create the FRAIG manager pMan = Fraig_ManCreate( pParams ); - // map the constant node - Abc_NtkCleanCopy( pNtk ); - Abc_AigConst1(pNtk)->pCopy = (Abc_Obj_t *)Fraig_ManReadConst1(pMan); // create PIs and remember them in the old nodes + Abc_NtkCleanCopy( pNtk ); Abc_NtkForEachCi( pNtk, pNode, i ) pNode->pCopy = (Abc_Obj_t *)Fraig_ManReadIthVar(pMan, i); - + pConst1 = Abc_AigConst1( pNtk->pManFunc ); + pReset = Abc_AigReset( pNtk->pManFunc ); + // perform strashing vNodes = Abc_AigDfs( pNtk, fAllNodes, 0 ); - if ( !fInternal ) + if ( !pParams->fInternal ) pProgress = Extra_ProgressBarStart( stdout, vNodes->nSize ); Vec_PtrForEachEntry( vNodes, pNode, i ) { - if ( Abc_ObjFaninNum(pNode) == 0 ) - continue; - if ( !fInternal ) + if ( !pParams->fInternal ) Extra_ProgressBarUpdate( pProgress, i, NULL ); - pNode->pCopy = (Abc_Obj_t *)Fraig_NodeAnd( pMan, + if ( pNode == pConst1 ) + pNodeFraig = Fraig_ManReadConst1(pMan); + else if ( pNode == pReset ) + continue; + else + pNodeFraig = Fraig_NodeAnd( pMan, Fraig_NotCond( Abc_ObjFanin0(pNode)->pCopy, Abc_ObjFaninC0(pNode) ), Fraig_NotCond( Abc_ObjFanin1(pNode)->pCopy, Abc_ObjFaninC1(pNode) ) ); + assert( pNode->pCopy == NULL ); + pNode->pCopy = (Abc_Obj_t *)pNodeFraig; } - if ( !fInternal ) + if ( !pParams->fInternal ) Extra_ProgressBarStop( pProgress ); Vec_PtrFree( vNodes ); - // use EXDC to change the mapping of nodes into FRAIG nodes - if ( fExdc ) - Abc_NtkFraigRemapUsingExdc( pMan, pNtk ); - // set the primary outputs Abc_NtkForEachCo( pNtk, pNode, i ) Fraig_ManSetPo( pMan, (Fraig_Node_t *)Abc_ObjNotCond( Abc_ObjFanin0(pNode)->pCopy, Abc_ObjFaninC0(pNode) ) ); @@ -148,123 +135,7 @@ void * Abc_NtkToFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int fExd /**Function************************************************************* - Synopsis [Derives EXDC node for the given network.] - - Description [Assumes that EXDCs of all POs are the same. - Returns the EXDC of the first PO.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Fraig_Node_t * Abc_NtkToFraigExdc( Fraig_Man_t * pMan, Abc_Ntk_t * pNtkMain, Abc_Ntk_t * pNtkExdc ) -{ - Abc_Ntk_t * pNtkStrash; - Abc_Obj_t * pObj; - Fraig_Node_t * gResult; - char ** ppNames; - int i, k; - // strash the EXDC network - pNtkStrash = Abc_NtkStrash( pNtkExdc, 0, 0, 0 ); - Abc_NtkCleanCopy( pNtkStrash ); - Abc_AigConst1(pNtkStrash)->pCopy = (Abc_Obj_t *)Fraig_ManReadConst1(pMan); - // set the mapping of the PI nodes - ppNames = Abc_NtkCollectCioNames( pNtkMain, 0 ); - Abc_NtkForEachCi( pNtkStrash, pObj, i ) - { - for ( k = 0; k < Abc_NtkCiNum(pNtkMain); k++ ) - if ( strcmp( Abc_ObjName(pObj), ppNames[k] ) == 0 ) - { - pObj->pCopy = (Abc_Obj_t *)Fraig_ManReadIthVar(pMan, k); - break; - } - assert( pObj->pCopy != NULL ); - } - free( ppNames ); - // build FRAIG for each node - Abc_AigForEachAnd( pNtkStrash, pObj, i ) - pObj->pCopy = (Abc_Obj_t *)Fraig_NodeAnd( pMan, - Fraig_NotCond( Abc_ObjFanin0(pObj)->pCopy, Abc_ObjFaninC0(pObj) ), - Fraig_NotCond( Abc_ObjFanin1(pObj)->pCopy, Abc_ObjFaninC1(pObj) ) ); - // get the EXDC to be returned - pObj = Abc_NtkPo( pNtkStrash, 0 ); - gResult = Fraig_NotCond( Abc_ObjFanin0(pObj)->pCopy, Abc_ObjFaninC0(pObj) ); - Abc_NtkDelete( pNtkStrash ); - return gResult; -} - - -/**Function************************************************************* - - Synopsis [Changes mapping of the old nodes into FRAIG nodes using EXDC.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Abc_NtkFraigRemapUsingExdc( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ) -{ - Fraig_Node_t * gNodeNew, * gNodeExdc; - stmm_table * tTable; - stmm_generator * gen; - Abc_Obj_t * pNode, * pNodeBest; - Abc_Obj_t * pClass, ** ppSlot; - Vec_Ptr_t * vNexts; - int i; - - // get the global don't-cares - assert( pNtk->pExdc ); - gNodeExdc = Abc_NtkToFraigExdc( pMan, pNtk, pNtk->pExdc ); - - // save the next pointers - vNexts = Vec_PtrStart( Abc_NtkObjNumMax(pNtk) ); - Abc_NtkForEachNode( pNtk, pNode, i ) - Vec_PtrWriteEntry( vNexts, pNode->Id, pNode->pNext ); - - // find the classes of AIG nodes which have FRAIG nodes assigned - Abc_NtkCleanNext( pNtk ); - tTable = stmm_init_table(stmm_ptrcmp,stmm_ptrhash); - Abc_NtkForEachNode( pNtk, pNode, i ) - if ( pNode->pCopy ) - { - gNodeNew = Fraig_NodeAnd( pMan, (Fraig_Node_t *)pNode->pCopy, Fraig_Not(gNodeExdc) ); - if ( !stmm_find_or_add( tTable, (char *)Fraig_Regular(gNodeNew), (char ***)&ppSlot ) ) - *ppSlot = NULL; - pNode->pNext = *ppSlot; - *ppSlot = pNode; - } - - // for reach non-trival class, find the node with minimum level, and replace other nodes by it - Abc_AigSetNodePhases( pNtk ); - stmm_foreach_item( tTable, gen, (char **)&gNodeNew, (char **)&pClass ) - { - if ( pClass->pNext == NULL ) - continue; - // find the node with minimum level - pNodeBest = pClass; - for ( pNode = pClass->pNext; pNode; pNode = pNode->pNext ) - if ( pNodeBest->Level > pNode->Level ) - pNodeBest = pNode; - // remap the class nodes - for ( pNode = pClass; pNode; pNode = pNode->pNext ) - pNode->pCopy = Abc_ObjNotCond( pNodeBest->pCopy, pNode->fPhase ^ pNodeBest->fPhase ); - } - stmm_free_table( tTable ); - - // restore the next pointers - Abc_NtkCleanNext( pNtk ); - Abc_NtkForEachNode( pNtk, pNode, i ) - pNode->pNext = Vec_PtrEntry( vNexts, pNode->Id ); - Vec_PtrFree( vNexts ); -} - -/**Function************************************************************* - - Synopsis [Transforms FRAIG into strashed network with choices.] + Synopsis [Transforms FRAIG into what looks like a strashed network.] Description [] @@ -275,27 +146,26 @@ void Abc_NtkFraigRemapUsingExdc( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ) ***********************************************************************/ Abc_Ntk_t * Abc_NtkFromFraig( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ) { - ProgressBar * pProgress; +// ProgressBar * pProgress; Abc_Ntk_t * pNtkNew; Abc_Obj_t * pNode, * pNodeNew; int i; // create the new network - pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_STRASH, ABC_FUNC_AIG ); + pNtkNew = Abc_NtkStartFrom( pNtk, ABC_TYPE_STRASH, ABC_FUNC_AIG ); // make the mapper point to the new network Abc_NtkForEachCi( pNtk, pNode, i ) Fraig_NodeSetData1( Fraig_ManReadIthVar(pMan, i), (Fraig_Node_t *)pNode->pCopy ); // set the constant node - Fraig_NodeSetData1( Fraig_ManReadConst1(pMan), (Fraig_Node_t *)Abc_AigConst1(pNtkNew) ); + Fraig_NodeSetData1( Fraig_ManReadConst1(pMan), (Fraig_Node_t *)Abc_AigConst1(pNtkNew->pManFunc) ); // process the nodes in topological order - pProgress = Extra_ProgressBarStart( stdout, Abc_NtkCoNum(pNtk) ); +// pProgress = Extra_ProgressBarStart( stdout, Abc_NtkCoNum(pNtk) ); Abc_NtkForEachCo( pNtk, pNode, i ) { - Extra_ProgressBarUpdate( pProgress, i, NULL ); +// Extra_ProgressBarUpdate( pProgress, i, NULL ); pNodeNew = Abc_NodeFromFraig_rec( pNtkNew, Fraig_ManReadOutputs(pMan)[i] ); Abc_ObjAddFanin( pNode->pCopy, pNodeNew ); } - Extra_ProgressBarStop( pProgress ); - Abc_NtkReassignIds( pNtkNew ); +// Extra_ProgressBarStop( pProgress ); return pNtkNew; } @@ -362,109 +232,6 @@ Abc_Obj_t * Abc_NodeFromFraig_rec( Abc_Ntk_t * pNtkNew, Fraig_Node_t * pNodeFrai return Abc_ObjNotCond( pRes, Fraig_IsComplement(pNodeFraig) ); } -/**Function************************************************************* - - Synopsis [Transforms FRAIG into strashed network without choices.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Abc_Ntk_t * Abc_NtkFromFraig2( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk ) -{ - ProgressBar * pProgress; - stmm_table * tTable; - Vec_Ptr_t * vNodeReprs; - Abc_Ntk_t * pNtkNew; - Abc_Obj_t * pNode, * pRepr, ** ppSlot; - int i; - - // map the nodes into their lowest level representives - tTable = stmm_init_table(stmm_ptrcmp,stmm_ptrhash); - pNode = Abc_AigConst1(pNtk); - if ( !stmm_find_or_add( tTable, (char *)Fraig_Regular(pNode->pCopy), (char ***)&ppSlot ) ) - *ppSlot = pNode; - Abc_NtkForEachCi( pNtk, pNode, i ) - if ( !stmm_find_or_add( tTable, (char *)Fraig_Regular(pNode->pCopy), (char ***)&ppSlot ) ) - *ppSlot = pNode; - Abc_NtkForEachNode( pNtk, pNode, i ) - if ( pNode->pCopy ) - { - if ( !stmm_find_or_add( tTable, (char *)Fraig_Regular(pNode->pCopy), (char ***)&ppSlot ) ) - *ppSlot = pNode; - else if ( (*ppSlot)->Level > pNode->Level ) - *ppSlot = pNode; - } - // save representatives for each node - vNodeReprs = Vec_PtrStart( Abc_NtkObjNumMax(pNtk) ); - Abc_NtkForEachNode( pNtk, pNode, i ) - if ( pNode->pCopy ) - { - if ( !stmm_lookup( tTable, (char *)Fraig_Regular(pNode->pCopy), (char **)&pRepr ) ) - assert( 0 ); - if ( pNode != pRepr ) - Vec_PtrWriteEntry( vNodeReprs, pNode->Id, pRepr ); - } - stmm_free_table( tTable ); - - // create the new network - pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_STRASH, ABC_FUNC_AIG ); - - // perform strashing - Abc_AigSetNodePhases( pNtk ); - Abc_NtkIncrementTravId( pNtk ); - pProgress = Extra_ProgressBarStart( stdout, Abc_NtkCoNum(pNtk) ); - Abc_NtkForEachCo( pNtk, pNode, i ) - { - Extra_ProgressBarUpdate( pProgress, i, NULL ); - Abc_NtkFromFraig2_rec( pNtkNew, Abc_ObjFanin0(pNode), vNodeReprs ); - } - Extra_ProgressBarStop( pProgress ); - Vec_PtrFree( vNodeReprs ); - - // finalize the network - Abc_NtkFinalize( pNtk, pNtkNew ); - return pNtkNew; -} - - -/**Function************************************************************* - - Synopsis [Transforms into AIG one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Abc_NtkFromFraig2_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, Vec_Ptr_t * vNodeReprs ) -{ - Abc_Obj_t * pRepr; - // skip the PIs and constants - if ( Abc_ObjFaninNum(pNode) < 2 ) - return; - // if this node is already visited, skip - if ( Abc_NodeIsTravIdCurrent( pNode ) ) - return; - // mark the node as visited - Abc_NodeSetTravIdCurrent( pNode ); - assert( Abc_ObjIsNode( pNode ) ); - // get the node's representative - if ( pRepr = Vec_PtrEntry(vNodeReprs, pNode->Id) ) - { - Abc_NtkFromFraig2_rec( pNtkNew, pRepr, vNodeReprs ); - pNode->pCopy = Abc_ObjNotCond( pRepr->pCopy, pRepr->fPhase ^ pNode->fPhase ); - return; - } - Abc_NtkFromFraig2_rec( pNtkNew, Abc_ObjFanin0(pNode), vNodeReprs ); - Abc_NtkFromFraig2_rec( pNtkNew, Abc_ObjFanin1(pNode), vNodeReprs ); - pNode->pCopy = Abc_AigAnd( pNtkNew->pManFunc, Abc_ObjChild0Copy(pNode), Abc_ObjChild1Copy(pNode) ); -} @@ -496,10 +263,9 @@ Abc_Ntk_t * Abc_NtkFraigTrust( Abc_Ntk_t * pNtk ) } // perform strashing - pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_STRASH, ABC_FUNC_AIG ); + pNtkNew = Abc_NtkStartFrom( pNtk, ABC_TYPE_STRASH, ABC_FUNC_AIG ); Abc_NtkFraigTrustOne( pNtk, pNtkNew ); Abc_NtkFinalize( pNtk, pNtkNew ); - Abc_NtkReassignIds( pNtkNew ); // print a warning about choice nodes printf( "Warning: The resulting AIG contains %d choice nodes.\n", Abc_NtkGetChoiceNum( pNtkNew ) ); @@ -556,6 +322,7 @@ int Abc_NtkFraigTrustCheck( Abc_Ntk_t * pNtk ) void Abc_NtkFraigTrustOne( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew ) { ProgressBar * pProgress; + Abc_Aig_t * pMan = pNtkNew->pManFunc; Vec_Ptr_t * vNodes; Abc_Obj_t * pNode, * pNodeNew, * pObj; int i; @@ -569,7 +336,7 @@ void Abc_NtkFraigTrustOne( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew ) // get the node assert( Abc_ObjIsNode(pNode) ); // strash the node - pNodeNew = Abc_NodeFraigTrust( pNtkNew, pNode ); + pNodeNew = Abc_NodeFraigTrust( pMan, pNode ); // get the old object if ( Abc_NtkIsNetlist(pNtk) ) pObj = Abc_ObjFanout0( pNode ); // the fanout net @@ -595,9 +362,10 @@ void Abc_NtkFraigTrustOne( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew ) SeeAlso [] ***********************************************************************/ -Abc_Obj_t * Abc_NodeFraigTrust( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode ) +Abc_Obj_t * Abc_NodeFraigTrust( Abc_Aig_t * pMan, Abc_Obj_t * pNode ) { Abc_Obj_t * pSum, * pFanin; + Abc_Obj_t * pConst1 = Abc_AigConst1(pMan); void ** ppTail; int i, nFanins, fCompl; @@ -607,11 +375,11 @@ Abc_Obj_t * Abc_NodeFraigTrust( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode ) assert( nFanins == Abc_SopGetVarNum(pNode->pData) ); // check if it is a constant if ( nFanins == 0 ) - return Abc_ObjNotCond( Abc_AigConst1(pNtkNew), Abc_SopIsConst0(pNode->pData) ); + return Abc_ObjNotCond( pConst1, Abc_SopIsConst0(pNode->pData) ); if ( nFanins == 1 ) return Abc_ObjNotCond( Abc_ObjFanin0(pNode)->pCopy, Abc_SopIsInv(pNode->pData) ); if ( nFanins == 2 && Abc_SopIsAndType(pNode->pData) ) - return Abc_AigAnd( pNtkNew->pManFunc, + return Abc_AigAnd( pMan, Abc_ObjNotCond( Abc_ObjFanin0(pNode)->pCopy, !Abc_SopGetIthCareLit(pNode->pData,0) ), Abc_ObjNotCond( Abc_ObjFanin1(pNode)->pCopy, !Abc_SopGetIthCareLit(pNode->pData,1) ) ); assert( Abc_SopIsOrType(pNode->pData) ); @@ -648,32 +416,49 @@ Abc_Obj_t * Abc_NodeFraigTrust( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode ) SeeAlso [] ***********************************************************************/ -int Abc_NtkFraigStore( Abc_Ntk_t * pNtkAdd ) +int Abc_NtkFraigStore( Abc_Ntk_t * pNtk ) { - Vec_Ptr_t * vStore; - Abc_Ntk_t * pNtk; - // create the network to be stored - pNtk = Abc_NtkStrash( pNtkAdd, 0, 0, 0 ); - if ( pNtk == NULL ) + extern int Abc_NtkAppendNew( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2 ); + + Abc_Ntk_t * pStore; + int nAndsOld; + + if ( !Abc_NtkIsLogic(pNtk) && !Abc_NtkIsStrash(pNtk) ) { - printf( "Abc_NtkFraigStore: Initial strashing has failed.\n" ); + printf( "The netlist need to be converted into a logic network before adding it to storage.\n" ); return 0; } + // get the network currently stored - vStore = Abc_FrameReadStore(); - if ( Vec_PtrSize(vStore) > 0 ) + pStore = Abc_FrameReadNtkStore(); + if ( pStore == NULL ) { - // check that the networks have the same PIs - // reorder PIs of pNtk2 according to pNtk1 - if ( !Abc_NtkCompareSignals( pNtk, Vec_PtrEntry(vStore, 0), 1, 1 ) ) + // start the stored network + pStore = Abc_NtkStrash( pNtk, 0, 0 ); + if ( pStore == NULL ) { - printf( "Trying to store the network with different primary inputs.\n" ); - printf( "The previously stored networks are deleted and this one is added.\n" ); - Abc_NtkFraigStoreClean(); + printf( "Abc_NtkFraigStore: Initial strashing has failed.\n" ); + return 0; } + // save the parameters + Abc_FrameSetNtkStore( pStore ); + Abc_FrameSetNtkStoreSize( 1 ); + nAndsOld = 0; } - Vec_PtrPush( vStore, pNtk ); -// printf( "The number of AIG nodes added to storage = %5d.\n", Abc_NtkNodeNum(pNtk) ); + else + { + // add the new network to storage + nAndsOld = Abc_NtkNodeNum( pStore ); +// if ( !Abc_NtkAppend( pStore, pNtk ) ) + if ( !Abc_NtkAppendNew( pStore, pNtk ) ) + { + printf( "The current network cannot be appended to the stored network.\n" ); + return 0; + } + // set the number of networks stored + Abc_FrameSetNtkStoreSize( Abc_FrameReadNtkStoreSize() + 1 ); + } + printf( "The number of AIG nodes added to storage = %5d.\n", Abc_NtkNodeNum(pStore) - nAndsOld ); return 1; } @@ -690,54 +475,56 @@ int Abc_NtkFraigStore( Abc_Ntk_t * pNtkAdd ) ***********************************************************************/ Abc_Ntk_t * Abc_NtkFraigRestore() { - extern Abc_Ntk_t * Abc_NtkFraigPartitioned( Vec_Ptr_t * vStore, void * pParams ); + extern Abc_Ntk_t * Abc_NtkFraigPartitioned( Abc_Ntk_t * pNtk, void * pParams ); + Fraig_Params_t Params; - Vec_Ptr_t * vStore; - Abc_Ntk_t * pNtk, * pFraig; + Abc_Ntk_t * pStore, * pFraig; int nWords1, nWords2, nWordsMin; int clk = clock(); // get the stored network - vStore = Abc_FrameReadStore(); - if ( Vec_PtrSize(vStore) == 0 ) + pStore = Abc_FrameReadNtkStore(); + Abc_FrameSetNtkStore( NULL ); + if ( pStore == NULL ) { printf( "There are no network currently in storage.\n" ); return NULL; } -// printf( "Currently stored %d networks will be fraiged.\n", Vec_PtrSize(vStore) ); - pNtk = Vec_PtrEntry( vStore, 0 ); - - // swap the first and last network - // this should lead to the primary choice being "better" because of synthesis - pNtk = Vec_PtrPop( vStore ); - Vec_PtrPush( vStore, Vec_PtrEntry(vStore,0) ); - Vec_PtrWriteEntry( vStore, 0, pNtk ); + printf( "Currently stored %d networks with %d nodes will be fraiged.\n", + Abc_FrameReadNtkStoreSize(), Abc_NtkNodeNum(pStore) ); // to determine the number of simulation patterns // use the following strategy // at least 64 words (32 words random and 32 words dynamic) // no more than 256M for one circuit (128M + 128M) nWords1 = 32; - nWords2 = (1<<27) / (Abc_NtkNodeNum(pNtk) + Abc_NtkCiNum(pNtk)); + nWords2 = (1<<27) / (Abc_NtkNodeNum(pStore) + Abc_NtkCiNum(pStore)); nWordsMin = ABC_MIN( nWords1, nWords2 ); // set parameters for fraiging Fraig_ParamsSetDefault( &Params ); - Params.nPatsRand = nWordsMin * 32; // the number of words of random simulation info - Params.nPatsDyna = nWordsMin * 32; // the number of words of dynamic simulation info - Params.nBTLimit = 1000; // the max number of backtracks to perform - Params.fFuncRed = 1; // performs only one level hashing - Params.fFeedBack = 1; // enables solver feedback - Params.fDist1Pats = 1; // enables distance-1 patterns - Params.fDoSparse = 1; // performs equiv tests for sparse functions - Params.fChoicing = 1; // enables recording structural choices - Params.fTryProve = 0; // tries to solve the final miter - Params.fVerbose = 0; // the verbosiness flag - - // perform partitioned computation of structural choices - pFraig = Abc_NtkFraigPartitioned( vStore, &Params ); - Abc_NtkFraigStoreClean(); -//PRT( "Total choicing time", clock() - clk ); + Params.nPatsRand = nWordsMin * 32; // the number of words of random simulation info + Params.nPatsDyna = nWordsMin * 32; // the number of words of dynamic simulation info +// Params.nBTLimit = 99; // the max number of backtracks to perform + Params.nBTLimit = 1000000; // the max number of backtracks to perform + Params.fFuncRed = 1; // performs only one level hashing + Params.fFeedBack = 1; // enables solver feedback + Params.fDist1Pats = 1; // enables distance-1 patterns + Params.fDoSparse = 1; // performs equiv tests for sparse functions + Params.fChoicing = 1; // enables recording structural choices + Params.fTryProve = 0; // tries to solve the final miter + Params.fVerbose = 0; // the verbosiness flag + Params.fInternal = 1; // the flag indicates the internal run + +// Fraig_ManReportChoices( p ); + // transform it into FRAIG +// pFraig = Abc_NtkFraig( pStore, &Params, 1 ); + pFraig = Abc_NtkFraigPartitioned( pStore, &Params ); + +PRT( "Total fraiging time", clock() - clk ); + if ( pFraig == NULL ) + return NULL; + Abc_NtkDelete( pStore ); return pFraig; } @@ -754,13 +541,12 @@ Abc_Ntk_t * Abc_NtkFraigRestore() ***********************************************************************/ void Abc_NtkFraigStoreClean() { - Vec_Ptr_t * vStore; - Abc_Ntk_t * pNtk; - int i; - vStore = Abc_FrameReadStore(); - Vec_PtrForEachEntry( vStore, pNtk, i ) - Abc_NtkDelete( pNtk ); - Vec_PtrClear( vStore ); + Abc_Ntk_t * pStore; + // get the stored network + pStore = Abc_FrameReadNtkStore(); + if ( pStore ) + Abc_NtkDelete( pStore ); + Abc_FrameSetNtkStore( NULL ); } /**Function************************************************************* @@ -781,7 +567,7 @@ void Abc_NtkFraigStoreCheck( Abc_Ntk_t * pFraig ) int i, k; // check that the PO functions are correct nPoFinal = Abc_NtkPoNum(pFraig); - nStored = Abc_FrameReadStoreSize(); + nStored = Abc_FrameReadNtkStoreSize(Abc_FrameGetGlobalFrame()); assert( nPoFinal % nStored == 0 ); nPoOrig = nPoFinal / nStored; for ( i = 0; i < nPoOrig; i++ ) |