Date: 2024-12-02T08:58:36+00:00

Actual source code: veccomp.c
slepc-3.22.2 2024-12-02
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      1: /*
      2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      4:    Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain

      6:    This file is part of SLEPc.
      7:    SLEPc is distributed under a 2-clause BSD license (see LICENSE).
      8:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      9: */

     11: #include <slepc/private/vecimplslepc.h>

     13: /* Private MPI datatypes and operators */
     14: static MPI_Datatype MPIU_NORM2=0, MPIU_NORM1_AND_2=0;
     15: static PetscBool VecCompInitialized = PETSC_FALSE;
     16: MPI_Op MPIU_NORM2_SUM=0;

     18: /* Private functions */
     19: static inline void SumNorm2(PetscReal*,PetscReal*,PetscReal*,PetscReal*);
     20: static inline PetscReal GetNorm2(PetscReal,PetscReal);
     21: static inline void AddNorm2(PetscReal*,PetscReal*,PetscReal);
     22: static PetscErrorCode VecCompSetSubVecs_Comp(Vec,PetscInt,Vec*);
     23: static PetscErrorCode VecCompGetSubVecs_Comp(Vec,PetscInt*,const Vec**);

     25: #include "veccomp0.h"

     28: #include "veccomp0.h"

     30: static inline void SumNorm2(PetscReal *ssq0,PetscReal *scale0,PetscReal *ssq1,PetscReal *scale1)
     31: {
     32:   PetscReal q;
     33:   if (*scale0 > *scale1) {
     34:     q = *scale1/(*scale0);
     35:     *ssq1 = *ssq0 + q*q*(*ssq1);
     36:     *scale1 = *scale0;
     37:   } else {
     38:     q = *scale0/(*scale1);
     39:     *ssq1 += q*q*(*ssq0);
     40:   }
     41: }

     43: static inline PetscReal GetNorm2(PetscReal ssq,PetscReal scale)
     44: {
     45:   return scale*PetscSqrtReal(ssq);
     46: }

     48: static inline void AddNorm2(PetscReal *ssq,PetscReal *scale,PetscReal x)
     49: {
     50:   PetscReal absx,q;
     51:   if (x != 0.0) {
     52:     absx = PetscAbs(x);
     53:     if (*scale < absx) {
     54:       q = *scale/absx;
     55:       *ssq = 1.0 + *ssq*q*q;
     56:       *scale = absx;
     57:     } else {
     58:       q = absx/(*scale);
     59:       *ssq += q*q;
     60:     }
     61:   }
     62: }

     64: SLEPC_EXTERN void MPIAPI SlepcSumNorm2_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype)
     65: {
     66:   PetscInt  i,count = *cnt;
     67:   PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out;

     69:   PetscFunctionBegin;
     70:   if (*datatype == MPIU_NORM2) {
     71:     for (i=0;i<count;i++) {
     72:       SumNorm2(&xin[i*2],&xin[i*2+1],&xout[i*2],&xout[i*2+1]);
     73:     }
     74:   } else if (*datatype == MPIU_NORM1_AND_2) {
     75:     for (i=0;i<count;i++) {
     76:       xout[i*3] += xin[i*3];
     77:       SumNorm2(&xin[i*3+1],&xin[i*3+2],&xout[i*3+1],&xout[i*3+2]);
     78:     }
     79:   } else {
     80:     (void)(*PetscErrorPrintf)("Can only handle MPIU_NORM* data types");
     81:     MPI_Abort(PETSC_COMM_WORLD,1);
     82:   }
     83:   PetscFunctionReturnVoid();
     84: }

     86: static PetscErrorCode VecCompNormEnd(void)
     87: {
     88:   PetscFunctionBegin;
     89:   PetscCallMPI(MPI_Type_free(&MPIU_NORM2));
     90:   PetscCallMPI(MPI_Type_free(&MPIU_NORM1_AND_2));
     91:   PetscCallMPI(MPI_Op_free(&MPIU_NORM2_SUM));
     92:   VecCompInitialized = PETSC_FALSE;
     93:   PetscFunctionReturn(PETSC_SUCCESS);
     94: }

     96: static PetscErrorCode VecCompNormInit(void)
     97: {
     98:   PetscFunctionBegin;
     99:   PetscCallMPI(MPI_Type_contiguous(2,MPIU_REAL,&MPIU_NORM2));
    100:   PetscCallMPI(MPI_Type_commit(&MPIU_NORM2));
    101:   PetscCallMPI(MPI_Type_contiguous(3,MPIU_REAL,&MPIU_NORM1_AND_2));
    102:   PetscCallMPI(MPI_Type_commit(&MPIU_NORM1_AND_2));
    103:   PetscCallMPI(MPI_Op_create(SlepcSumNorm2_Local,PETSC_TRUE,&MPIU_NORM2_SUM));
    104:   PetscCall(PetscRegisterFinalize(VecCompNormEnd));
    105:   PetscFunctionReturn(PETSC_SUCCESS);
    106: }

    108: PetscErrorCode VecDestroy_Comp(Vec v)
    109: {
    110:   Vec_Comp       *vs = (Vec_Comp*)v->data;
    111:   PetscInt       i;

    113:   PetscFunctionBegin;
    114: #if defined(PETSC_USE_LOG)
    115:   PetscCall(PetscLogObjectState((PetscObject)v,"Length=%" PetscInt_FMT,v->map->n));
    116: #endif
    117:   for (i=0;i<vs->nx;i++) PetscCall(VecDestroy(&vs->x[i]));
    118:   if (--vs->n->friends <= 0) PetscCall(PetscFree(vs->n));
    119:   PetscCall(PetscFree(vs->x));
    120:   PetscCall(PetscFree(vs));
    121:   PetscCall(PetscObjectComposeFunction((PetscObject)v,"VecCompSetSubVecs_C",NULL));
    122:   PetscCall(PetscObjectComposeFunction((PetscObject)v,"VecCompGetSubVecs_C",NULL));
    123:   PetscFunctionReturn(PETSC_SUCCESS);
    124: }

    126: static struct _VecOps DvOps = {
    127:   PetscDesignatedInitializer(duplicate,VecDuplicate_Comp),
    128:   PetscDesignatedInitializer(duplicatevecs,VecDuplicateVecs_Comp),
    129:   PetscDesignatedInitializer(destroyvecs,VecDestroyVecs_Comp),
    130:   PetscDesignatedInitializer(dot,VecDot_Comp_MPI),
    131:   PetscDesignatedInitializer(mdot,VecMDot_Comp_MPI),
    132:   PetscDesignatedInitializer(norm,VecNorm_Comp_MPI),
    133:   PetscDesignatedInitializer(tdot,VecTDot_Comp_MPI),
    134:   PetscDesignatedInitializer(mtdot,VecMTDot_Comp_MPI),
    135:   PetscDesignatedInitializer(scale,VecScale_Comp),
    136:   PetscDesignatedInitializer(copy,VecCopy_Comp),
    137:   PetscDesignatedInitializer(set,VecSet_Comp),
    138:   PetscDesignatedInitializer(swap,VecSwap_Comp),
    139:   PetscDesignatedInitializer(axpy,VecAXPY_Comp),
    140:   PetscDesignatedInitializer(axpby,VecAXPBY_Comp),
    141:   PetscDesignatedInitializer(maxpy,VecMAXPY_Comp),
    142:   PetscDesignatedInitializer(aypx,VecAYPX_Comp),
    143:   PetscDesignatedInitializer(waxpy,VecWAXPY_Comp),
    144:   PetscDesignatedInitializer(axpbypcz,VecAXPBYPCZ_Comp),
    145:   PetscDesignatedInitializer(pointwisemult,VecPointwiseMult_Comp),
    146:   PetscDesignatedInitializer(pointwisedivide,VecPointwiseDivide_Comp),
    147:   PetscDesignatedInitializer(setvalues,NULL),
    148:   PetscDesignatedInitializer(assemblybegin,NULL),
    149:   PetscDesignatedInitializer(assemblyend,NULL),
    150:   PetscDesignatedInitializer(getarray,NULL),
    151:   PetscDesignatedInitializer(getsize,VecGetSize_Comp),
    152:   PetscDesignatedInitializer(getlocalsize,VecGetLocalSize_Comp),
    153:   PetscDesignatedInitializer(restorearray,NULL),
    154:   PetscDesignatedInitializer(max,VecMax_Comp),
    155:   PetscDesignatedInitializer(min,VecMin_Comp),
    156:   PetscDesignatedInitializer(setrandom,VecSetRandom_Comp),
    157:   PetscDesignatedInitializer(setoption,NULL),
    158:   PetscDesignatedInitializer(setvaluesblocked,NULL),
    159:   PetscDesignatedInitializer(destroy,VecDestroy_Comp),
    160:   PetscDesignatedInitializer(view,VecView_Comp),
    161:   PetscDesignatedInitializer(placearray,NULL),
    162:   PetscDesignatedInitializer(replacearray,NULL),
    163:   PetscDesignatedInitializer(dot_local,VecDot_Comp_Seq),
    164:   PetscDesignatedInitializer(tdot_local,VecTDot_Comp_Seq),
    165:   PetscDesignatedInitializer(norm_local,VecNorm_Comp_Seq),
    166:   PetscDesignatedInitializer(mdot_local,VecMDot_Comp_Seq),
    167:   PetscDesignatedInitializer(mtdot_local,VecMTDot_Comp_Seq),
    168:   PetscDesignatedInitializer(load,NULL),
    169:   PetscDesignatedInitializer(reciprocal,VecReciprocal_Comp),
    170:   PetscDesignatedInitializer(conjugate,VecConjugate_Comp),
    171:   PetscDesignatedInitializer(setlocaltoglobalmapping,NULL),
    172:   PetscDesignatedInitializer(getlocaltoglobalmapping,NULL),
    173:   PetscDesignatedInitializer(setvalueslocal,NULL),
    174:   PetscDesignatedInitializer(resetarray,NULL),
    175:   PetscDesignatedInitializer(setfromoptions,NULL),
    176:   PetscDesignatedInitializer(maxpointwisedivide,VecMaxPointwiseDivide_Comp),
    177:   PetscDesignatedInitializer(pointwisemax,VecPointwiseMax_Comp),
    178:   PetscDesignatedInitializer(pointwisemaxabs,VecPointwiseMaxAbs_Comp),
    179:   PetscDesignatedInitializer(pointwisemin,VecPointwiseMin_Comp),
    180:   PetscDesignatedInitializer(getvalues,NULL),
    181:   PetscDesignatedInitializer(sqrt,VecSqrtAbs_Comp),
    182:   PetscDesignatedInitializer(abs,VecAbs_Comp),
    183:   PetscDesignatedInitializer(exp,VecExp_Comp),
    184:   PetscDesignatedInitializer(log,VecLog_Comp),
    185:   PetscDesignatedInitializer(shift,VecShift_Comp),
    186:   PetscDesignatedInitializer(create,NULL),
    187:   PetscDesignatedInitializer(stridegather,NULL),
    188:   PetscDesignatedInitializer(stridescatter,NULL),
    189:   PetscDesignatedInitializer(dotnorm2,VecDotNorm2_Comp_MPI),
    190:   PetscDesignatedInitializer(getsubvector,NULL),
    191:   PetscDesignatedInitializer(restoresubvector,NULL),
    192:   PetscDesignatedInitializer(getarrayread,NULL),
    193:   PetscDesignatedInitializer(restorearrayread,NULL),
    194:   PetscDesignatedInitializer(stridesubsetgather,NULL),
    195:   PetscDesignatedInitializer(stridesubsetscatter,NULL),
    196:   PetscDesignatedInitializer(viewnative,NULL),
    197:   PetscDesignatedInitializer(loadnative,NULL),
    198:   PetscDesignatedInitializer(getlocalvector,NULL)
    199: };

    201: PetscErrorCode VecDuplicateVecs_Comp(Vec w,PetscInt m,Vec *V[])
    202: {
    203:   PetscInt       i;

    205:   PetscFunctionBegin;
    207:   PetscAssertPointer(V,3);
    208:   PetscCheck(m>0,PetscObjectComm((PetscObject)w),PETSC_ERR_ARG_OUTOFRANGE,"m must be > 0: m = %" PetscInt_FMT,m);
    209:   PetscCall(PetscMalloc1(m,V));
    210:   for (i=0;i<m;i++) PetscCall(VecDuplicate(w,*V+i));
    211:   PetscFunctionReturn(PETSC_SUCCESS);
    212: }

    214: PetscErrorCode VecDestroyVecs_Comp(PetscInt m,Vec v[])
    215: {
    216:   PetscInt       i;

    218:   PetscFunctionBegin;
    219:   PetscAssertPointer(v,2);
    220:   PetscCheck(m>0,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"m must be > 0: m = %" PetscInt_FMT,m);
    221:   for (i=0;i<m;i++) PetscCall(VecDestroy(&v[i]));
    222:   PetscCall(PetscFree(v));
    223:   PetscFunctionReturn(PETSC_SUCCESS);
    224: }

    226: static PetscErrorCode VecCreate_Comp_Private(Vec v,Vec *x,PetscInt nx,PetscBool x_to_me,Vec_Comp_N *n)
    227: {
    228:   Vec_Comp       *s;
    229:   PetscInt       N=0,lN=0,i,k;

    231:   PetscFunctionBegin;
    232:   if (!VecCompInitialized) {
    233:     VecCompInitialized = PETSC_TRUE;
    234:     PetscCall(VecRegister(VECCOMP,VecCreate_Comp));
    235:     PetscCall(VecCompNormInit());
    236:   }

    238:   /* Allocate a new Vec_Comp */
    239:   if (v->data) PetscCall(PetscFree(v->data));
    240:   PetscCall(PetscNew(&s));
    241:   PetscCall(PetscMemcpy(v->ops,&DvOps,sizeof(DvOps)));
    242:   v->data        = (void*)s;
    243:   v->petscnative = PETSC_FALSE;

    245:   /* Allocate the array of Vec, if it is needed to be done */
    246:   if (!x_to_me) {
    247:     if (nx) PetscCall(PetscMalloc1(nx,&s->x));
    248:     if (x) PetscCall(PetscArraycpy(s->x,x,nx));
    249:   } else s->x = x;

    251:   s->nx = nx;

    253:   if (nx && x) {
    254:     /* Allocate the shared structure, if it is not given */
    255:     if (!n) {
    256:       for (i=0;i<nx;i++) {
    257:         PetscCall(VecGetSize(x[i],&k));
    258:         N+= k;
    259:         PetscCall(VecGetLocalSize(x[i],&k));
    260:         lN+= k;
    261:       }
    262:       PetscCall(PetscNew(&n));
    263:       s->n = n;
    264:       n->n = nx;
    265:       n->N = N;
    266:       n->lN = lN;
    267:       n->friends = 1;
    268:     } else { /* If not, check in the vector in the shared structure */
    269:       s->n = n;
    270:       s->n->friends++;
    271:     }

    273:     /* Set the virtual sizes as the real sizes of the vector */
    274:     PetscCall(VecSetSizes(v,s->n->lN,s->n->N));
    275:   }

    277:   PetscCall(PetscObjectChangeTypeName((PetscObject)v,VECCOMP));
    278:   PetscCall(PetscObjectComposeFunction((PetscObject)v,"VecCompSetSubVecs_C",VecCompSetSubVecs_Comp));
    279:   PetscCall(PetscObjectComposeFunction((PetscObject)v,"VecCompGetSubVecs_C",VecCompGetSubVecs_Comp));
    280:   PetscFunctionReturn(PETSC_SUCCESS);
    281: }

    283: SLEPC_EXTERN PetscErrorCode VecCreate_Comp(Vec V)
    284: {
    285:   PetscFunctionBegin;
    286:   PetscCall(VecCreate_Comp_Private(V,NULL,0,PETSC_FALSE,NULL));
    287:   PetscFunctionReturn(PETSC_SUCCESS);
    288: }

    290: /*@
    291:    VecCreateComp - Creates a new vector containing several subvectors,
    292:    each stored separately.

    294:    Collective

    296:    Input Parameters:
    297: +  comm - communicator for the new Vec
    298: .  Nx   - array of (initial) global sizes of child vectors
    299: .  n    - number of child vectors
    300: .  t    - type of the child vectors
    301: -  Vparent - (optional) template vector

    303:    Output Parameter:
    304: .  V - new vector

    306:    Notes:
    307:    This is similar to PETSc's VecNest but customized for SLEPc's needs. In particular,
    308:    the number of child vectors can be modified dynamically, with VecCompSetSubVecs().

    310:    Level: developer

    312: .seealso: VecCreateCompWithVecs(), VecCompSetSubVecs()
    313: @*/
    314: PetscErrorCode VecCreateComp(MPI_Comm comm,PetscInt Nx[],PetscInt n,VecType t,Vec Vparent,Vec *V)
    315: {
    316:   Vec            *x;
    317:   PetscInt       i;

    319:   PetscFunctionBegin;
    320:   PetscCall(VecCreate(comm,V));
    321:   PetscCall(PetscMalloc1(n,&x));
    322:   for (i=0;i<n;i++) {
    323:     PetscCall(VecCreate(comm,&x[i]));
    324:     PetscCall(VecSetSizes(x[i],PETSC_DECIDE,Nx[i]));
    325:     PetscCall(VecSetType(x[i],t));
    326:   }
    327:   PetscCall(VecCreate_Comp_Private(*V,x,n,PETSC_TRUE,Vparent?((Vec_Comp*)Vparent->data)->n:NULL));
    328:   PetscFunctionReturn(PETSC_SUCCESS);
    329: }

    331: /*@
    332:    VecCreateCompWithVecs - Creates a new vector containing several subvectors,
    333:    each stored separately, from an array of Vecs.

    335:    Collective

    337:    Input Parameters:
    338: +  x - array of Vecs
    339: .  n - number of child vectors
    340: -  Vparent - (optional) template vector

    342:    Output Parameter:
    343: .  V - new vector

    345:    Level: developer

    347: .seealso: VecCreateComp()
    348: @*/
    349: PetscErrorCode VecCreateCompWithVecs(Vec x[],PetscInt n,Vec Vparent,Vec *V)
    350: {
    351:   PetscInt       i;

    353:   PetscFunctionBegin;
    354:   PetscAssertPointer(x,1);
    357:   PetscCall(VecCreate(PetscObjectComm((PetscObject)x[0]),V));
    358:   for (i=0;i<n;i++) PetscCall(PetscObjectReference((PetscObject)x[i]));
    359:   PetscCall(VecCreate_Comp_Private(*V,x,n,PETSC_FALSE,Vparent?((Vec_Comp*)Vparent->data)->n:NULL));
    360:   PetscFunctionReturn(PETSC_SUCCESS);
    361: }

    363: PetscErrorCode VecDuplicate_Comp(Vec win,Vec *V)
    364: {
    365:   Vec            *x;
    366:   PetscInt       i;
    367:   Vec_Comp       *s = (Vec_Comp*)win->data;

    369:   PetscFunctionBegin;
    370:   SlepcValidVecComp(win,1);
    371:   PetscCall(VecCreate(PetscObjectComm((PetscObject)win),V));
    372:   PetscCall(PetscMalloc1(s->nx,&x));
    373:   for (i=0;i<s->nx;i++) {
    374:     if (s->x[i]) PetscCall(VecDuplicate(s->x[i],&x[i]));
    375:     else x[i] = NULL;
    376:   }
    377:   PetscCall(VecCreate_Comp_Private(*V,x,s->nx,PETSC_TRUE,s->n));
    378:   PetscFunctionReturn(PETSC_SUCCESS);
    379: }

    381: static PetscErrorCode VecCompGetSubVecs_Comp(Vec win,PetscInt *n,const Vec **x)
    382: {
    383:   Vec_Comp *s = (Vec_Comp*)win->data;

    385:   PetscFunctionBegin;
    386:   if (x) *x = s->x;
    387:   if (n) *n = s->n->n;
    388:   PetscFunctionReturn(PETSC_SUCCESS);
    389: }

    391: /*@C
    392:    VecCompGetSubVecs - Returns the entire array of vectors defining a
    393:    compound vector.

    395:    Collective

    397:    Input Parameter:
    398: .  win - compound vector

    400:    Output Parameters:
    401: +  n - number of child vectors
    402: -  x - array of child vectors

    404:    Level: developer

    406: .seealso: VecCreateComp()
    407: @*/
    408: PetscErrorCode VecCompGetSubVecs(Vec win,PetscInt *n,const Vec **x)
    409: {
    410:   PetscFunctionBegin;
    412:   PetscUseMethod(win,"VecCompGetSubVecs_C",(Vec,PetscInt*,const Vec**),(win,n,x));
    413:   PetscFunctionReturn(PETSC_SUCCESS);
    414: }

    416: static PetscErrorCode VecCompSetSubVecs_Comp(Vec win,PetscInt n,Vec *x)
    417: {
    418:   Vec_Comp       *s = (Vec_Comp*)win->data;
    419:   PetscInt       i,N,nlocal;
    420:   Vec_Comp_N     *nn;

    422:   PetscFunctionBegin;
    423:   PetscCheck(s,PetscObjectComm((PetscObject)win),PETSC_ERR_ORDER,"Must call VecSetSizes first");
    424:   if (!s->nx) {
    425:     /* vector has been created via VecCreate+VecSetType+VecSetSizes, so allocate data structures */
    426:     PetscCall(PetscMalloc1(n,&s->x));
    427:     PetscCall(VecGetSize(win,&N));
    428:     PetscCheck(N%n==0,PetscObjectComm((PetscObject)win),PETSC_ERR_SUP,"Global dimension %" PetscInt_FMT " is not divisible by %" PetscInt_FMT,N,n);
    429:     PetscCall(VecGetLocalSize(win,&nlocal));
    430:     PetscCheck(nlocal%n==0,PetscObjectComm((PetscObject)win),PETSC_ERR_SUP,"Local dimension %" PetscInt_FMT " is not divisible by %" PetscInt_FMT,nlocal,n);
    431:     s->nx = n;
    432:     for (i=0;i<n;i++) {
    433:       PetscCall(VecCreate(PetscObjectComm((PetscObject)win),&s->x[i]));
    434:       PetscCall(VecSetSizes(s->x[i],nlocal/n,N/n));
    435:       PetscCall(VecSetFromOptions(s->x[i]));
    436:     }
    437:     if (!s->n) {
    438:       PetscCall(PetscNew(&nn));
    439:       s->n = nn;
    440:       nn->N = N;
    441:       nn->lN = nlocal;
    442:       nn->friends = 1;
    443:     }
    444:   } else PetscCheck(n<=s->nx,PetscObjectComm((PetscObject)win),PETSC_ERR_SUP,"Number of child vectors cannot be larger than %" PetscInt_FMT,s->nx);
    445:   if (x) PetscCall(PetscArraycpy(s->x,x,n));
    446:   s->n->n = n;
    447:   PetscFunctionReturn(PETSC_SUCCESS);
    448: }

    450: /*@
    451:    VecCompSetSubVecs - Resets the number of subvectors defining a compound vector,
    452:    or replaces the subvectors.

    454:    Collective

    456:    Input Parameters:
    457: +  win - compound vector
    458: .  n - number of child vectors
    459: -  x - array of child vectors

    461:    Note:
    462:    It is not possible to increase the number of subvectors with respect to the
    463:    number set at its creation.

    465:    Level: developer

    467: .seealso: VecCreateComp(), VecCompGetSubVecs()
    468: @*/
    469: PetscErrorCode VecCompSetSubVecs(Vec win,PetscInt n,Vec x[])
    470: {
    471:   PetscFunctionBegin;
    474:   PetscTryMethod(win,"VecCompSetSubVecs_C",(Vec,PetscInt,Vec*),(win,n,x));
    475:   PetscFunctionReturn(PETSC_SUCCESS);
    476: }

    478: PetscErrorCode VecAXPY_Comp(Vec v,PetscScalar alpha,Vec w)
    479: {
    480:   Vec_Comp       *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data;
    481:   PetscInt       i;

    483:   PetscFunctionBegin;
    484:   SlepcValidVecComp(v,1);
    485:   SlepcValidVecComp(w,3);
    486:   for (i=0;i<vs->n->n;i++) PetscCall(VecAXPY(vs->x[i],alpha,ws->x[i]));
    487:   PetscFunctionReturn(PETSC_SUCCESS);
    488: }

    490: PetscErrorCode VecAYPX_Comp(Vec v,PetscScalar alpha,Vec w)
    491: {
    492:   Vec_Comp       *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data;
    493:   PetscInt       i;

    495:   PetscFunctionBegin;
    496:   SlepcValidVecComp(v,1);
    497:   SlepcValidVecComp(w,3);
    498:   for (i=0;i<vs->n->n;i++) PetscCall(VecAYPX(vs->x[i],alpha,ws->x[i]));
    499:   PetscFunctionReturn(PETSC_SUCCESS);
    500: }

    502: PetscErrorCode VecAXPBY_Comp(Vec v,PetscScalar alpha,PetscScalar beta,Vec w)
    503: {
    504:   Vec_Comp       *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data;
    505:   PetscInt       i;

    507:   PetscFunctionBegin;
    508:   SlepcValidVecComp(v,1);
    509:   SlepcValidVecComp(w,4);
    510:   for (i=0;i<vs->n->n;i++) PetscCall(VecAXPBY(vs->x[i],alpha,beta,ws->x[i]));
    511:   PetscFunctionReturn(PETSC_SUCCESS);
    512: }

    514: PetscErrorCode VecMAXPY_Comp(Vec v,PetscInt n,const PetscScalar *alpha,Vec *w)
    515: {
    516:   Vec_Comp       *vs = (Vec_Comp*)v->data;
    517:   Vec            *wx;
    518:   PetscInt       i,j;

    520:   PetscFunctionBegin;
    521:   SlepcValidVecComp(v,1);
    522:   for (i=0;i<n;i++) SlepcValidVecComp(w[i],4);

    524:   PetscCall(PetscMalloc1(n,&wx));

    526:   for (j=0;j<vs->n->n;j++) {
    527:     for (i=0;i<n;i++) wx[i] = ((Vec_Comp*)w[i]->data)->x[j];
    528:     PetscCall(VecMAXPY(vs->x[j],n,alpha,wx));
    529:   }

    531:   PetscCall(PetscFree(wx));
    532:   PetscFunctionReturn(PETSC_SUCCESS);
    533: }

    535: PetscErrorCode VecWAXPY_Comp(Vec v,PetscScalar alpha,Vec w,Vec z)
    536: {
    537:   Vec_Comp       *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data,*zs = (Vec_Comp*)z->data;
    538:   PetscInt       i;

    540:   PetscFunctionBegin;
    541:   SlepcValidVecComp(v,1);
    542:   SlepcValidVecComp(w,3);
    543:   SlepcValidVecComp(z,4);
    544:   for (i=0;i<vs->n->n;i++) PetscCall(VecWAXPY(vs->x[i],alpha,ws->x[i],zs->x[i]));
    545:   PetscFunctionReturn(PETSC_SUCCESS);
    546: }

    548: PetscErrorCode VecAXPBYPCZ_Comp(Vec v,PetscScalar alpha,PetscScalar beta,PetscScalar gamma,Vec w,Vec z)
    549: {
    550:   Vec_Comp        *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data,*zs = (Vec_Comp*)z->data;
    551:   PetscInt        i;

    553:   PetscFunctionBegin;
    554:   SlepcValidVecComp(v,1);
    555:   SlepcValidVecComp(w,5);
    556:   SlepcValidVecComp(z,6);
    557:   for (i=0;i<vs->n->n;i++) PetscCall(VecAXPBYPCZ(vs->x[i],alpha,beta,gamma,ws->x[i],zs->x[i]));
    558:   PetscFunctionReturn(PETSC_SUCCESS);
    559: }

    561: PetscErrorCode VecGetSize_Comp(Vec v,PetscInt *size)
    562: {
    563:   Vec_Comp *vs = (Vec_Comp*)v->data;

    565:   PetscFunctionBegin;
    566:   PetscAssertPointer(size,2);
    567:   if (vs->n) {
    568:     SlepcValidVecComp(v,1);
    569:     *size = vs->n->N;
    570:   } else *size = v->map->N;
    571:   PetscFunctionReturn(PETSC_SUCCESS);
    572: }

    574: PetscErrorCode VecGetLocalSize_Comp(Vec v,PetscInt *size)
    575: {
    576:   Vec_Comp *vs = (Vec_Comp*)v->data;

    578:   PetscFunctionBegin;
    579:   PetscAssertPointer(size,2);
    580:   if (vs->n) {
    581:     SlepcValidVecComp(v,1);
    582:     *size = vs->n->lN;
    583:   } else *size = v->map->n;
    584:   PetscFunctionReturn(PETSC_SUCCESS);
    585: }

    587: PetscErrorCode VecMax_Comp(Vec v,PetscInt *idx,PetscReal *z)
    588: {
    589:   Vec_Comp       *vs = (Vec_Comp*)v->data;
    590:   PetscInt       idxp,s=0,s0;
    591:   PetscReal      zp,z0;
    592:   PetscInt       i;

    594:   PetscFunctionBegin;
    595:   SlepcValidVecComp(v,1);
    596:   if (!idx && !z) PetscFunctionReturn(PETSC_SUCCESS);

    598:   if (vs->n->n > 0) PetscCall(VecMax(vs->x[0],idx?&idxp:NULL,&zp));
    599:   else {
    600:     zp = PETSC_MIN_REAL;
    601:     if (idx) idxp = -1;
    602:   }
    603:   for (i=1;i<vs->n->n;i++) {
    604:     PetscCall(VecGetSize(vs->x[i-1],&s0));
    605:     s += s0;
    606:     PetscCall(VecMax(vs->x[i],idx?&idxp:NULL,&z0));
    607:     if (zp < z0) {
    608:       if (idx) *idx = s+idxp;
    609:       zp = z0;
    610:     }
    611:   }
    612:   if (z) *z = zp;
    613:   PetscFunctionReturn(PETSC_SUCCESS);
    614: }

    616: PetscErrorCode VecMin_Comp(Vec v,PetscInt *idx,PetscReal *z)
    617: {
    618:   Vec_Comp       *vs = (Vec_Comp*)v->data;
    619:   PetscInt       idxp,s=0,s0;
    620:   PetscReal      zp,z0;
    621:   PetscInt       i;

    623:   PetscFunctionBegin;
    624:   SlepcValidVecComp(v,1);
    625:   if (!idx && !z) PetscFunctionReturn(PETSC_SUCCESS);

    627:   if (vs->n->n > 0) PetscCall(VecMin(vs->x[0],idx?&idxp:NULL,&zp));
    628:   else {
    629:     zp = PETSC_MAX_REAL;
    630:     if (idx) idxp = -1;
    631:   }
    632:   for (i=1;i<vs->n->n;i++) {
    633:     PetscCall(VecGetSize(vs->x[i-1],&s0));
    634:     s += s0;
    635:     PetscCall(VecMin(vs->x[i],idx?&idxp:NULL,&z0));
    636:     if (zp > z0) {
    637:       if (idx) *idx = s+idxp;
    638:       zp = z0;
    639:     }
    640:   }
    641:   if (z) *z = zp;
    642:   PetscFunctionReturn(PETSC_SUCCESS);
    643: }

    645: PetscErrorCode VecMaxPointwiseDivide_Comp(Vec v,Vec w,PetscReal *m)
    646: {
    647:   Vec_Comp       *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data;
    648:   PetscReal      work;
    649:   PetscInt       i;

    651:   PetscFunctionBegin;
    652:   SlepcValidVecComp(v,1);
    653:   SlepcValidVecComp(w,2);
    654:   if (!m || vs->n->n == 0) PetscFunctionReturn(PETSC_SUCCESS);
    655:   PetscCall(VecMaxPointwiseDivide(vs->x[0],ws->x[0],m));
    656:   for (i=1;i<vs->n->n;i++) {
    657:     PetscCall(VecMaxPointwiseDivide(vs->x[i],ws->x[i],&work));
    658:     *m = PetscMax(*m,work);
    659:   }
    660:   PetscFunctionReturn(PETSC_SUCCESS);
    661: }

    668: PetscErrorCode __COMPOSE3__(Vec,NAME,_Comp)(Vec v) \
    669: { \
    670:   Vec_Comp        *vs = (Vec_Comp*)v->data; \
    671:   PetscInt        i; \
    672: \
    673:   PetscFunctionBegin; \
    674:   SlepcValidVecComp(v,1); \
    675:   for (i=0;i<vs->n->n;i++) { \
    676:     PetscCall(__COMPOSE2__(Vec,NAME)(vs->x[i])); \
    677:   } \
    678:   PetscFunctionReturn(PETSC_SUCCESS);\
    679: }

    681: __FUNC_TEMPLATE1__(Conjugate)
    682: __FUNC_TEMPLATE1__(Reciprocal)
    683: __FUNC_TEMPLATE1__(SqrtAbs)
    684: __FUNC_TEMPLATE1__(Abs)
    685: __FUNC_TEMPLATE1__(Exp)
    686: __FUNC_TEMPLATE1__(Log)

    689: PetscErrorCode __COMPOSE3__(Vec,NAME,_Comp)(Vec v,T0 __a) \
    690: { \
    691:   Vec_Comp        *vs = (Vec_Comp*)v->data; \
    692:   PetscInt        i; \
    693: \
    694:   PetscFunctionBegin; \
    695:   SlepcValidVecComp(v,1); \
    696:   for (i=0;i<vs->n->n;i++) { \
    697:     PetscCall(__COMPOSE2__(Vec,NAME)(vs->x[i],__a)); \
    698:   } \
    699:   PetscFunctionReturn(PETSC_SUCCESS);\
    700: }

    702: __FUNC_TEMPLATE2__(Set,PetscScalar)
    703: __FUNC_TEMPLATE2__(View,PetscViewer)
    704: __FUNC_TEMPLATE2__(Scale,PetscScalar)
    705: __FUNC_TEMPLATE2__(SetRandom,PetscRandom)
    706: __FUNC_TEMPLATE2__(Shift,PetscScalar)

    709: PetscErrorCode __COMPOSE3__(Vec,NAME,_Comp)(Vec v,Vec w) \
    710: { \
    711:   Vec_Comp        *vs = (Vec_Comp*)v->data,\
    712:                   *ws = (Vec_Comp*)w->data; \
    713:   PetscInt        i; \
    714: \
    715:   PetscFunctionBegin; \
    716:   SlepcValidVecComp(v,1); \
    717:   SlepcValidVecComp(w,2); \
    718:   for (i=0;i<vs->n->n;i++) { \
    719:     PetscCall(__COMPOSE2__(Vec,NAME)(vs->x[i],ws->x[i])); \
    720:   } \
    721:   PetscFunctionReturn(PETSC_SUCCESS);\
    722: }

    724: __FUNC_TEMPLATE3__(Copy)
    725: __FUNC_TEMPLATE3__(Swap)

    728: PetscErrorCode __COMPOSE3__(Vec,NAME,_Comp)(Vec v,Vec w,Vec z) \
    729: { \
    730:   Vec_Comp        *vs = (Vec_Comp*)v->data, \
    731:                   *ws = (Vec_Comp*)w->data, \
    732:                   *zs = (Vec_Comp*)z->data; \
    733:   PetscInt        i; \
    734: \
    735:   PetscFunctionBegin; \
    736:   SlepcValidVecComp(v,1); \
    737:   SlepcValidVecComp(w,2); \
    738:   SlepcValidVecComp(z,3); \
    739:   for (i=0;i<vs->n->n;i++) { \
    740:     PetscCall(__COMPOSE2__(Vec,NAME)(vs->x[i],ws->x[i],zs->x[i])); \
    741:   } \
    742:   PetscFunctionReturn(PETSC_SUCCESS);\
    743: }

    745: __FUNC_TEMPLATE4__(PointwiseMax)
    746: __FUNC_TEMPLATE4__(PointwiseMaxAbs)
    747: __FUNC_TEMPLATE4__(PointwiseMin)
    748: __FUNC_TEMPLATE4__(PointwiseMult)
    749: __FUNC_TEMPLATE4__(PointwiseDivide)