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walk_ip.cc File Reference
#include "kernel/mod2.h"
#include "Singular/tok.h"
#include "misc/options.h"
#include "Singular/ipid.h"
#include "misc/intvec.h"
#include "omalloc/omalloc.h"
#include "kernel/polys.h"
#include "kernel/ideals.h"
#include "polys/matpol.h"
#include "kernel/GBEngine/kstd1.h"
#include "polys/monomials/ring.h"
#include "Singular/subexpr.h"
#include "polys/monomials/maps.h"
#include "kernel/GBEngine/syz.h"
#include "coeffs/numbers.h"
#include "Singular/lists.h"
#include "Singular/attrib.h"
#include "Singular/ipconv.h"
#include "Singular/links/silink.h"
#include "kernel/combinatorics/stairc.h"
#include "polys/weight.h"
#include "kernel/spectrum/semic.h"
#include "kernel/spectrum/splist.h"
#include "kernel/spectrum/spectrum.h"
#include "polys/clapsing.h"
#include "kernel/combinatorics/hutil.h"
#include "Singular/ipshell.h"
#include "kernel/groebner_walk/walkMain.h"
#include "kernel/groebner_walk/walkProc.h"
#include "kernel/groebner_walk/walkSupport.h"
#include "polys/prCopy.h"

Go to the source code of this file.

Functions

ideal walkProc (leftv first, leftv second)
 
ideal fractalWalkProc (leftv first, leftv second)
 
int64vecgetiv64 (lists l)
 

Function Documentation

◆ fractalWalkProc()

ideal fractalWalkProc ( leftv  first,
leftv  second 
)

Definition at line 161 of file walk_ip.cc.

162{
163
164 //unperturbedStartVectorStrategy SHOULD BE SET BY THE USER THROUGH
165 //A THIRD ARGUMENT. TRUE MEANS THAT THE UNPERTURBED START
166 //VECTOR STRATEGY IS USED AND FALSE THAT THE START VECTOR IS
167 //MAXIMALLY PERTURBED
168
169 BOOLEAN unperturbedStartVectorStrategy=TRUE;
170
171 WalkState state = WalkOk;
172 BITSET save1,save2;
173 SI_SAVE_OPT(save1,save2);
174 si_opt_1 &= (~Sy_bit(OPT_REDSB)); //make sure option noredSB is set
175
176 ring destRing = currRing;
177 ideal destIdeal = NULL;
178 idhdl sourceRingHdl = (idhdl)first->data;
179 rSetHdl( sourceRingHdl );
180 ring sourceRing = currRing;
181
182 int * vperm = (int *)omAlloc0( (currRing->N+1)*sizeof( int ) );
183 state= fractalWalkConsistency( sourceRing, destRing, vperm );
184 omFreeSize( (ADDRESS)vperm, (currRing->N+1)*sizeof(int) );
185
186 ideal sourceIdeal;
187 BOOLEAN sourcIdealIsSB=FALSE;
188 if ( state == WalkOk ) {
189 idhdl ih = currRing->idroot->get( second->Name(), myynest );
190 if ( (ih != NULL) && (IDTYP(ih)==IDEAL_CMD) ) {
191 sourceIdeal = IDIDEAL( ih );
192 if(hasFlag((leftv)ih,FLAG_STD)){
193 sourcIdealIsSB=TRUE;
194 }
195 }
196 else {
197 state=WalkNoIdeal;
198 }
199 }
200
201 if ( state == WalkOk ) {
202 // Now the settings are compatible with Walk
203 state=fractalWalk64(sourceIdeal,destRing,destIdeal,
204 sourcIdealIsSB,
205 unperturbedStartVectorStrategy);
206 }
207
208 SI_RESTORE_OPT(save1,save2);//making sure options are as before functiocall
209
210 if ( state == WalkOk )
211 {
212 ring almostDestRing=currRing;
213 rChangeCurrRing(destRing);
214 destIdeal=idrMoveR(destIdeal, almostDestRing, destRing);
215 }
216
217
218 switch (state) {
219
220 case WalkOk:
221 destIdeal=sortRedSB(destIdeal);
222 return(destIdeal);
223 break;
224
226 Werror( "ring %s and current ring are incompatible\n",
227 first->Name() );
228 rChangeCurrRing(destRing);
229 destIdeal= NULL;
230 return destIdeal;
231 break;
232
234 Werror( "Order of basering not allowed,\n must be a combination of lp,dp,Dp,wp,Wp and C or just M.\n");
235 rChangeCurrRing(destRing);
236 destIdeal= NULL;
237 return destIdeal;
238 break;
239
241 Werror( "Order of %s not allowed,\n must be a combination of lp,dp,Dp,wp,Wp and C or just M.\n",
242 first->Name());
243 rChangeCurrRing(destRing);
244 destIdeal= NULL;
245 return destIdeal;
246 break;
247
248 case WalkNoIdeal:
249 Werror( "Can't find ideal %s in ring %s.\n",
250 second->Name(), first->Name() );
251 rChangeCurrRing(destRing);
252 destIdeal= NULL;
253 return destIdeal;
254 break;
255
257 Werror( "Overflow occurred in ring %s.\n", first->Name() );
258 rChangeCurrRing(destRing);
259 destIdeal= NULL;
260 return destIdeal;
261 break;
262
263 default:
264 rChangeCurrRing(destRing);
265 destIdeal= idInit(1,1);
266 return destIdeal;
267 }
268
269
270 return NULL;
271}
int BOOLEAN
Definition: auxiliary.h:87
#define TRUE
Definition: auxiliary.h:100
#define FALSE
Definition: auxiliary.h:96
void * ADDRESS
Definition: auxiliary.h:119
Definition: idrec.h:35
Class used for (list of) interpreter objects.
Definition: subexpr.h:83
const char * Name()
Definition: subexpr.h:120
void * data
Definition: subexpr.h:88
VAR int myynest
Definition: febase.cc:41
@ IDEAL_CMD
Definition: grammar.cc:284
#define hasFlag(A, F)
Definition: ipid.h:112
#define IDIDEAL(a)
Definition: ipid.h:133
#define IDTYP(a)
Definition: ipid.h:119
#define FLAG_STD
Definition: ipid.h:106
void rSetHdl(idhdl h)
Definition: ipshell.cc:5126
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
#define omAlloc0(size)
Definition: omAllocDecl.h:211
#define NULL
Definition: omList.c:12
VAR unsigned si_opt_1
Definition: options.c:5
#define SI_SAVE_OPT(A, B)
Definition: options.h:20
#define OPT_REDSB
Definition: options.h:77
#define SI_RESTORE_OPT(A, B)
Definition: options.h:23
void rChangeCurrRing(ring r)
Definition: polys.cc:15
VAR ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Definition: polys.cc:13
ideal idrMoveR(ideal &id, ring src_r, ring dest_r)
Definition: prCopy.cc:248
void Werror(const char *fmt,...)
Definition: reporter.cc:189
idrec * idhdl
Definition: ring.h:21
ideal idInit(int idsize, int rank)
initialise an ideal / module
Definition: simpleideals.cc:35
#define BITSET
Definition: structs.h:16
WalkState fractalWalk64(ideal sourceIdeal, ring destRing, ideal &destIdeal, BOOLEAN sourceIsSB, BOOLEAN unperturbedStartVectorStrategy)
Definition: walkMain.cc:614
WalkState
Definition: walkMain.h:7
@ WalkIncompatibleDestRing
Definition: walkMain.h:28
@ WalkIncompatibleRings
Definition: walkMain.h:9
@ WalkOverFlowError
Definition: walkMain.h:11
@ WalkOk
Definition: walkMain.h:30
@ WalkNoIdeal
Definition: walkMain.h:8
@ WalkIncompatibleSourceRing
Definition: walkMain.h:29
WalkState fractalWalkConsistency(ring sring, ring dring, int *vperm)
Definition: walkProc.cc:220
ideal sortRedSB(ideal G)

◆ getiv64()

int64vec * getiv64 ( lists  l)

Definition at line 284 of file walk_ip.cc.

285{
286 return (int64vec*)(l->m[0].data);
287}
int l
Definition: cfEzgcd.cc:100

◆ walkProc()

ideal walkProc ( leftv  first,
leftv  second 
)

Definition at line 55 of file walk_ip.cc.

56{
57 WalkState state = WalkOk;
58 BITSET save1,save2;
59 SI_SAVE_OPT(save1,save2);
60 si_opt_1 &= (~Sy_bit(OPT_REDSB)); //make sure option noredSB is set
61
62 ring destRing = currRing;
63 ideal destIdeal = NULL;
64 idhdl sourceRingHdl = (idhdl)first->data;
65 ring sourceRing = IDRING(sourceRingHdl);
66 rChangeCurrRing( sourceRing );
67
68 if(state==WalkOk)
69 {
70 int * vperm = (int *)omAlloc0( (currRing->N+1)*sizeof( int ) );
71 state= walkConsistency( sourceRing, destRing, vperm );
72 omFreeSize( (ADDRESS)vperm, (currRing->N+1)*sizeof(int) );
73 }
74
75 int64vec* currw64=rGetGlobalOrderWeightVec(sourceRing);
76 int64vec* destVec64=rGetGlobalOrderWeightVec(destRing);
77
78 ideal sourceIdeal;
79 BOOLEAN sourcIdealIsSB=FALSE;
80 if ( state == WalkOk )
81 {
82 idhdl ih = currRing->idroot->get( second->Name(), myynest );
83 if ( (ih != NULL) && (IDTYP(ih)==IDEAL_CMD) )
84 {
85 sourceIdeal = idCopy(IDIDEAL( ih ));
86 if(hasFlag((leftv)ih,FLAG_STD)){
87 sourcIdealIsSB=TRUE;
88 }
89 }
90 else
91 {
92 state=WalkNoIdeal;
93 }
94 }
95
96 if ( state == WalkOk )
97 {
98 // Now the settings are compatible with Walk
99 state=walk64(sourceIdeal,currw64,destRing,destVec64,
100 destIdeal,sourcIdealIsSB);
101 }
102
103 SI_RESTORE_OPT(save1,save2);//making sure options are as before function call
104
105 ring almostDestRing=currRing;
106 rChangeCurrRing(destRing);
107
108 switch (state) {
109 case WalkOk:
110 destIdeal=idrMoveR(destIdeal,currRing,almostDestRing);
111 break;
112
114 Werror("ring %s and current ring are incompatible\n",
115 first->Name() );
116 destIdeal= NULL;
117 break;
118
120 WerrorS( "Order of basering not allowed,\n must be a combination of a,A,lp,dp,Dp,wp,Wp,M and C.\n");
121 destIdeal= NULL;
122 break;
123
125 Werror( "Order of %s not allowed,\n must be a combination of a,A,lp,dp,Dp,wp,Wp,M and C.\n",first->Name());
126 rChangeCurrRing(destRing);
127 destIdeal= NULL;
128 break;
129
130 case WalkNoIdeal:
131 Werror( "Can't find ideal %s in ring %s.\n",
132 second->Name(), first->Name() );
133 destIdeal= NULL;
134 break;
135
137 WerrorS( "Overflow occurred.\n");
138 destIdeal= NULL;
139 break;
140
141 default:
142 destIdeal= NULL;
143 }
144
145 return destIdeal;
146}
void WerrorS(const char *s)
Definition: feFopen.cc:24
ideal idCopy(ideal A)
Definition: ideals.h:60
#define IDRING(a)
Definition: ipid.h:127
WalkState walk64(ideal I, int64vec *currw64, ring destRing, int64vec *destVec64, ideal &destIdeal, BOOLEAN sourceIsSB)
Definition: walkMain.cc:222
WalkState walkConsistency(ring sring, ring dring, int *vperm)
Definition: walkProc.cc:53
int64vec * rGetGlobalOrderWeightVec(ring r)