You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
468 lines
14 KiB
468 lines
14 KiB
/**CFile***********************************************************************
|
|
|
|
FileName [ntrZddTest.c]
|
|
|
|
PackageName [ntr]
|
|
|
|
Synopsis [ZDD test functions.]
|
|
|
|
Description []
|
|
|
|
SeeAlso []
|
|
|
|
Author [Fabio Somenzi]
|
|
|
|
Copyright [Copyright (c) 1995-2012, Regents of the University of Colorado
|
|
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
Neither the name of the University of Colorado nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.]
|
|
|
|
******************************************************************************/
|
|
|
|
#include "ntr.h"
|
|
#include "cuddInt.h"
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Constant declarations */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Stucture declarations */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Type declarations */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Variable declarations */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
#ifndef lint
|
|
static char rcsid[] UTIL_UNUSED = "$Id: ntrZddTest.c,v 1.15 2012/02/05 01:53:01 fabio Exp fabio $";
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Macro declarations */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
/**AutomaticStart*************************************************************/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Static function prototypes */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
static int reorderZdd (BnetNetwork *net, DdManager *dd, NtrOptions *option);
|
|
|
|
/**AutomaticEnd***************************************************************/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Definition of exported functions */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
|
|
/**Function********************************************************************
|
|
|
|
Synopsis [Tests ZDDs.]
|
|
|
|
Description [Tests ZDDs. Returns 1 if successful; 0 otherwise.]
|
|
|
|
SideEffects [Creates ZDD variables in the manager.]
|
|
|
|
SeeAlso []
|
|
|
|
******************************************************************************/
|
|
int
|
|
Ntr_testZDD(
|
|
DdManager * dd,
|
|
BnetNetwork * net,
|
|
NtrOptions * option)
|
|
{
|
|
DdNode **zdd; /* array of converted outputs */
|
|
int nz; /* actual number of ZDDs */
|
|
int result;
|
|
int i, j;
|
|
BnetNode *node; /* auxiliary pointer to network node */
|
|
int pr = option->verb;
|
|
int level; /* aux. var. used to print variable orders */
|
|
char **names; /* array used to print variable orders */
|
|
int nvars;
|
|
|
|
/* Build an array of ZDDs for the output functions or for the
|
|
** specified node. */
|
|
Cudd_AutodynDisable(dd);
|
|
Cudd_AutodynDisableZdd(dd);
|
|
zdd = ALLOC(DdNode *,net->noutputs);
|
|
result = Cudd_zddVarsFromBddVars(dd,1);
|
|
if (result == 0) return(0);
|
|
if (option->node == NULL) {
|
|
for (nz = 0; nz < net->noutputs; nz++) {
|
|
if (!st_lookup(net->hash,net->outputs[nz],&node)) {
|
|
return(0);
|
|
}
|
|
zdd[nz] = Cudd_zddPortFromBdd(dd, node->dd);
|
|
if (zdd[nz]) {
|
|
Cudd_Ref(zdd[nz]);
|
|
(void) printf("%s", node->name);
|
|
result = Cudd_zddPrintDebug(dd,zdd[nz],Cudd_ReadZddSize(dd),pr);
|
|
if (result == 0) return(0);
|
|
} else {
|
|
(void) printf("Conversion to ZDD failed.\n");
|
|
}
|
|
}
|
|
} else {
|
|
if (!st_lookup(net->hash,option->node,&node)) {
|
|
return(0);
|
|
}
|
|
zdd[0] = Cudd_zddPortFromBdd(dd, node->dd);
|
|
if (zdd[0]) {
|
|
Cudd_Ref(zdd[0]);
|
|
(void) printf("%s", node->name);
|
|
result = Cudd_zddPrintDebug(dd,zdd[0],Cudd_ReadZddSize(dd),pr);
|
|
if (result == 0) return(0);
|
|
} else {
|
|
(void) printf("Conversion to ZDD failed.\n");
|
|
}
|
|
nz = 1;
|
|
}
|
|
|
|
#ifdef DD_DEBUG
|
|
result = Cudd_CheckKeys(dd);
|
|
if (result != 0) {
|
|
(void) fprintf(stderr,"Error reported by Cudd_CheckKeys\n");
|
|
return(0);
|
|
}
|
|
#endif
|
|
|
|
if (option->autoDyn & 1) {
|
|
Cudd_AutodynEnable(dd,CUDD_REORDER_SAME);
|
|
}
|
|
if (option->autoDyn & 2) {
|
|
Cudd_AutodynEnableZdd(dd,CUDD_REORDER_SAME);
|
|
}
|
|
|
|
/* Convert the ZDDs back to BDDs and check identity. */
|
|
for (i = 0; i < nz; i++) {
|
|
DdNode *checkBdd;
|
|
checkBdd = Cudd_zddPortToBdd(dd,zdd[i]);
|
|
if (checkBdd) {
|
|
Cudd_Ref(checkBdd);
|
|
if (option->node == NULL) {
|
|
if (!st_lookup(net->hash,net->outputs[i],&node)) {
|
|
return(0);
|
|
}
|
|
} else {
|
|
if (!st_lookup(net->hash,option->node,&node)) {
|
|
return(0);
|
|
}
|
|
}
|
|
if (checkBdd != node->dd) {
|
|
(void) fprintf(stdout,"Equivalence failed at node %s",
|
|
node->name);
|
|
result = Cudd_PrintDebug(dd,checkBdd,Cudd_ReadZddSize(dd),pr);
|
|
if (result == 0) return(0);
|
|
}
|
|
Cudd_RecursiveDeref(dd,checkBdd);
|
|
} else {
|
|
(void) printf("Conversion to BDD failed.\n");
|
|
}
|
|
}
|
|
|
|
#ifdef DD_DEBUG
|
|
result = Cudd_CheckKeys(dd);
|
|
if (result != 0) {
|
|
(void) fprintf(stderr,"Error reported by Cudd_CheckKeys\n");
|
|
return(0);
|
|
}
|
|
#endif
|
|
|
|
/* Play with the ZDDs a little. */
|
|
if (nz > 2) {
|
|
DdNode *f;
|
|
DdNode *g1, *g2, *g;
|
|
f = Cudd_zddIte(dd,zdd[0],zdd[1],zdd[2]);
|
|
if (f == NULL) return(0);
|
|
cuddRef(f);
|
|
g1 = Cudd_zddIntersect(dd,zdd[0],zdd[1]);
|
|
if (g1 == NULL) {
|
|
Cudd_RecursiveDerefZdd(dd,f);
|
|
return(0);
|
|
}
|
|
cuddRef(g1);
|
|
g2 = Cudd_zddDiff(dd,zdd[2],zdd[0]);
|
|
if (g2 == NULL) {
|
|
Cudd_RecursiveDerefZdd(dd,f);
|
|
Cudd_RecursiveDerefZdd(dd,g1);
|
|
return(0);
|
|
}
|
|
cuddRef(g2);
|
|
g = Cudd_zddUnion(dd,g1,g2);
|
|
if (g == NULL) {
|
|
Cudd_RecursiveDerefZdd(dd,f);
|
|
Cudd_RecursiveDerefZdd(dd,g1);
|
|
Cudd_RecursiveDerefZdd(dd,g2);
|
|
return(0);
|
|
}
|
|
cuddRef(g);
|
|
Cudd_RecursiveDerefZdd(dd,g1);
|
|
Cudd_RecursiveDerefZdd(dd,g2);
|
|
if (g != f) {
|
|
(void) fprintf(stderr,"f != g!\n");
|
|
}
|
|
Cudd_RecursiveDerefZdd(dd,g);
|
|
Cudd_RecursiveDerefZdd(dd,f);
|
|
}
|
|
|
|
#ifdef DD_DEBUG
|
|
result = Cudd_CheckKeys(dd);
|
|
if (result != 0) {
|
|
(void) fprintf(stderr,"Error reported by Cudd_CheckKeys\n");
|
|
return(0);
|
|
}
|
|
#endif
|
|
|
|
/* Perform ZDD reordering. */
|
|
result = reorderZdd(net,dd,option);
|
|
if (result == 0) return(0);
|
|
|
|
/* Print final ZDD order. */
|
|
nvars = Cudd_ReadZddSize(dd);
|
|
names = ALLOC(char *, nvars);
|
|
if (names == NULL) return(0);
|
|
for (i = 0; i < nvars; i++) {
|
|
names[i] = NULL;
|
|
}
|
|
if (option->reordering != CUDD_REORDER_NONE) {
|
|
for (i = 0; i < net->npis; i++) {
|
|
if (!st_lookup(net->hash,net->inputs[i],&node)) {
|
|
FREE(names);
|
|
return(0);
|
|
}
|
|
level = Cudd_ReadPermZdd(dd,node->var);
|
|
names[level] = node->name;
|
|
}
|
|
for (i = 0; i < net->nlatches; i++) {
|
|
if (!st_lookup(net->hash,net->latches[i][1],&node)) {
|
|
FREE(names);
|
|
return(0);
|
|
}
|
|
level = Cudd_ReadPermZdd(dd,node->var);
|
|
names[level] = node->name;
|
|
}
|
|
(void) printf("New order\n");
|
|
for (i = 0, j = 0; i < nvars; i++) {
|
|
if (names[i] == NULL) continue;
|
|
if((j%8 == 0)&&j) (void) printf("\n");
|
|
(void) printf("%s ",names[i]);
|
|
j++;
|
|
}
|
|
(void) printf("\n");
|
|
}
|
|
FREE(names);
|
|
|
|
/* Dispose of ZDDs. */
|
|
for (i = 0; i < nz; i++) {
|
|
Cudd_RecursiveDerefZdd(dd,zdd[i]);
|
|
}
|
|
FREE(zdd);
|
|
return(1);
|
|
|
|
} /* end of Ntr_testZDD */
|
|
|
|
|
|
/**Function********************************************************************
|
|
|
|
Synopsis [Builds ZDD covers.]
|
|
|
|
Description []
|
|
|
|
SideEffects [Creates ZDD variables in the manager.]
|
|
|
|
SeeAlso []
|
|
|
|
******************************************************************************/
|
|
int
|
|
Ntr_testISOP(
|
|
DdManager * dd,
|
|
BnetNetwork * net,
|
|
NtrOptions * option)
|
|
{
|
|
DdNode **zdd; /* array of converted outputs */
|
|
DdNode *bdd; /* return value of Cudd_zddIsop */
|
|
int nz; /* actual number of ZDDs */
|
|
int result;
|
|
int i;
|
|
BnetNode *node; /* auxiliary pointer to network node */
|
|
int pr = option->verb;
|
|
|
|
/* Build an array of ZDDs for the output functions or the specified
|
|
** node. */
|
|
Cudd_zddRealignEnable(dd);
|
|
Cudd_AutodynDisableZdd(dd);
|
|
zdd = ALLOC(DdNode *,net->noutputs);
|
|
result = Cudd_zddVarsFromBddVars(dd,2);
|
|
if (result == 0) return(0);
|
|
if (option->node == NULL) {
|
|
nz = net->noutputs;
|
|
for (i = 0; i < nz; i++) {
|
|
if (!st_lookup(net->hash,net->outputs[i],&node)) {
|
|
return(0);
|
|
}
|
|
bdd = Cudd_zddIsop(dd, node->dd, node->dd, &zdd[i]);
|
|
if (bdd != node->dd) return(0);
|
|
Cudd_Ref(bdd);
|
|
Cudd_RecursiveDeref(dd,bdd);
|
|
if (zdd[i]) {
|
|
Cudd_Ref(zdd[i]);
|
|
(void) printf("%s", node->name);
|
|
result = Cudd_zddPrintDebug(dd,zdd[i],Cudd_ReadZddSize(dd),pr);
|
|
if (result == 0) return(0);
|
|
if (option->printcover) {
|
|
int *path;
|
|
DdGen *gen;
|
|
char *str = ALLOC(char,Cudd_ReadSize(dd)+1);
|
|
if (str == NULL) return(0);
|
|
(void) printf("Testing iterator on ZDD paths:\n");
|
|
Cudd_zddForeachPath(dd,zdd[i],gen,path) {
|
|
str = Cudd_zddCoverPathToString(dd,path,str);
|
|
(void) printf("%s 1\n", str);
|
|
}
|
|
(void) printf("\n");
|
|
FREE(str);
|
|
result = Cudd_zddPrintCover(dd,zdd[i]);
|
|
|
|
if (result == 0) return(0);
|
|
}
|
|
} else {
|
|
(void) printf("Conversion to ISOP failed.\n");
|
|
return(0);
|
|
}
|
|
}
|
|
} else {
|
|
nz = 1;
|
|
if (!st_lookup(net->hash,option->node,&node)) {
|
|
return(0);
|
|
}
|
|
bdd = Cudd_zddIsop(dd, node->dd, node->dd, &zdd[0]);
|
|
if (bdd != node->dd) return(0);
|
|
Cudd_Ref(bdd);
|
|
Cudd_RecursiveDeref(dd,bdd);
|
|
if (zdd[0]) {
|
|
Cudd_Ref(zdd[0]);
|
|
(void) printf("%s", node->name);
|
|
result = Cudd_zddPrintDebug(dd,zdd[0],Cudd_ReadZddSize(dd),pr);
|
|
if (result == 0) return(0);
|
|
if (option->printcover) {
|
|
int *path;
|
|
DdGen *gen;
|
|
char *str = ALLOC(char,Cudd_ReadSize(dd)+1);
|
|
if (str == NULL) return(0);
|
|
(void) printf("Testing iterator on ZDD paths:\n");
|
|
Cudd_zddForeachPath(dd,zdd[0],gen,path) {
|
|
str = Cudd_zddCoverPathToString(dd,path,str);
|
|
(void) printf("%s 1\n", str);
|
|
}
|
|
(void) printf("\n");
|
|
FREE(str);
|
|
|
|
result = Cudd_zddPrintCover(dd,zdd[0]);
|
|
if (result == 0) return(0);
|
|
}
|
|
} else {
|
|
(void) printf("Conversion to ISOP failed.\n");
|
|
return(0);
|
|
}
|
|
}
|
|
if (option->autoDyn) {
|
|
Cudd_AutodynEnableZdd(dd,CUDD_REORDER_SAME);
|
|
}
|
|
|
|
/* Perform ZDD reordering. */
|
|
result = reorderZdd(net,dd,option);
|
|
if (result == 0) return(0);
|
|
|
|
/* Dispose of ZDDs. */
|
|
for (i = 0; i < nz; i++) {
|
|
Cudd_RecursiveDerefZdd(dd,zdd[i]);
|
|
}
|
|
FREE(zdd);
|
|
|
|
return(1);
|
|
|
|
} /* end of Ntr_testISOP */
|
|
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Definition of internal functions */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Definition of static functions */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
|
|
/**Function********************************************************************
|
|
|
|
Synopsis [Applies reordering to the ZDDs.]
|
|
|
|
Description [Explicitly applies reordering to the ZDDs. Returns 1 if
|
|
successful; 0 otherwise.]
|
|
|
|
SideEffects [None]
|
|
|
|
SeeAlso []
|
|
|
|
*****************************************************************************/
|
|
static int
|
|
reorderZdd(
|
|
BnetNetwork * net,
|
|
DdManager * dd /* DD Manager */,
|
|
NtrOptions * option)
|
|
{
|
|
int result; /* return value from functions */
|
|
|
|
/* Perform the final reordering. */
|
|
if (option->reordering != CUDD_REORDER_NONE) {
|
|
(void) printf("Number of inputs = %d\n",net->ninputs);
|
|
|
|
dd->siftMaxVar = 1000000;
|
|
result = Cudd_zddReduceHeap(dd,option->reordering,1);
|
|
if (result == 0) return(0);
|
|
|
|
/* Print symmetry stats if pertinent */
|
|
if (option->reordering == CUDD_REORDER_SYMM_SIFT ||
|
|
option->reordering == CUDD_REORDER_SYMM_SIFT_CONV)
|
|
Cudd_zddSymmProfile(dd, 0, dd->sizeZ - 1);
|
|
}
|
|
|
|
return(1);
|
|
|
|
} /* end of reorderZdd */
|
|
|