/usr/include/liggghts/multi_node_mesh_parallel_buffer_I.h is in libliggghts-dev 3.7.0+repack1-1.
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This is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
(if not contributing author is listed, this file has been contributed
by the core developer)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
------------------------------------------------------------------------- */
#ifndef LMP_MULTI_NODE_MESH_PARALLEL_BUFFER_I_H
#define LMP_MULTI_NODE_MESH_PARALLEL_BUFFER_I_H
/* ----------------------------------------------------------------------
push / pop for exchange
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::pushExchange(int dim)
{
// scale translate rotate not needed here
bool dummy = false;
double checklo,checkhi;
checklo = this->domain->sublo[dim];
if(this->domain->subhi[dim] == this->domain->boxhi[dim])
checkhi = this->domain->boxhi[dim] + SMALL_DMBRDR;
else
checkhi = this->domain->subhi[dim];
int nsend = 0, nsend_this = 0;
int i = 0;
while(i < nLocal_)
{
if(!(this->center_(i)[dim] >= checklo && this->center_(i)[dim] < checkhi))
{
nsend_this = pushElemToBuffer(i,&(buf_send_[nsend+1]),OPERATION_COMM_EXCHANGE,dummy,dummy,dummy);
buf_send_[nsend] = static_cast<double>(nsend_this+1);
nsend += (nsend_this+1);
if (nsend > maxsend_)
grow_send(nsend,1);
this->deleteElement(i);
}
else i++;
}
return nsend;
}
template<int NUM_NODES>
void MultiNodeMeshParallel<NUM_NODES>::popExchange(int nrecv,int dim,double *buf)
{
double center_elem[3];
double checklo,checkhi;
int m = 0, nrecv_this;
// scale translate rotate not needed here
bool dummy = false;
checklo = this->domain->sublo[dim];
if(this->domain->subhi[dim] == this->domain->boxhi[dim])
checkhi = this->domain->boxhi[dim] + SMALL_DMBRDR;
else
checkhi = this->domain->subhi[dim];
while (m < nrecv)
{
// number of values is first in buffer
nrecv_this = static_cast<int>(buf[m]);
// center is next in buffer, test it
vectorCopy3D(&(buf[m+1]),center_elem);
if(center_elem[dim] >= checklo && center_elem[dim] < checkhi)
{
popElemFromBuffer(&(buf[m+1]),OPERATION_COMM_EXCHANGE,dummy,dummy,dummy);
nLocal_++;
}
m += nrecv_this;
}
}
/* ----------------------------------------------------------------------
restart functionality - write all required data into restart buffer
executed on all processes, but only proc 0 writes into writebuf
------------------------------------------------------------------------- */
template<int NUM_NODES>
void MultiNodeMeshParallel<NUM_NODES>::writeRestart(FILE *fp)
{
int size_this;
// # elements
int nlocal = this->sizeLocal();
int nglobal = sizeGlobal();
// buffer sizes
int sizeMesh, sizeElements, sizeElements_all;
sizeMesh = sizeRestartMesh();
sizeElements = nlocal * (sizeRestartElement() + 1);
double *bufMesh = NULL, *sendbufElems = NULL, *recvbufElems = NULL;
bool dummy = false;
// pack global data into buffer
// do this only on proc 0
if(this->comm->me == 0)
{
this->memory->create(bufMesh,sizeMesh,"MultiNodeMeshParallel::writeRestart:bufMesh");
pushMeshPropsToBuffer(bufMesh, OPERATION_RESTART,dummy,dummy,dummy);
}
// allocate send buffer and pack element data
// all local elements are in list
this->memory->create(sendbufElems,sizeElements,"MultiNodeMeshParallel::writeRestart:sendbuf");
sizeElements = 0;
for(int i = 0; i < nlocal; i++)
{
size_this = pushElemToBuffer(i,&(sendbufElems[sizeElements+1]),OPERATION_RESTART,dummy,dummy,dummy);
sendbufElems[sizeElements] = static_cast<double>(size_this+1);
sizeElements += (size_this+1);
}
// gather the per-element data
sizeElements_all = MPI_Gather0_Vector(sendbufElems,sizeElements,recvbufElems,this->world);
// actually write data to restart file
// do this only on proc 0
if(this->comm->me == 0)
{
double nG = static_cast<double>(nglobal);
// for error check
double sE = static_cast<double>(sizeRestartElement());
double sM = static_cast<double>(sizeRestartMesh());
// size with 3 extra values
int size = (sizeMesh+sizeElements_all+3) * sizeof(double);
// write size
fwrite(&size,sizeof(int),1,fp);
// write 3 extra values
fwrite(&nG,sizeof(double),1,fp);
fwrite(&sE,sizeof(double),1,fp);
fwrite(&sM,sizeof(double),1,fp);
// write per-element and mesh data
fwrite(recvbufElems,sizeof(double),sizeElements_all,fp);
fwrite(bufMesh,sizeof(double),sizeMesh,fp);
}
// free mem
if(bufMesh)
this->memory->destroy(bufMesh);
this->memory->destroy(sendbufElems);
if(recvbufElems)
delete []recvbufElems;
}
/* ----------------------------------------------------------------------
restart functionality - read all required data from restart buffer
executed on all processes
------------------------------------------------------------------------- */
template<int NUM_NODES>
void MultiNodeMeshParallel<NUM_NODES>::restart(double *list)
{
int m, nglobal, nrecv_this, sE, sM;
bool dummy = false;
m = 0;
nglobal = static_cast<int> (list[m++]);
sE = static_cast<int> (list[m++]);
sM = static_cast<int> (list[m++]);
if(sE != sizeRestartElement() || sM != sizeRestartMesh())
this->error->all(FLERR,"Incompatible mesh restart file - mesh has different properties in restarted simulation");
for(int i = 0; i < nglobal; i++)
{
nrecv_this = static_cast<int>(list[m]);
popElemFromBuffer(&(list[m+1]),OPERATION_RESTART,dummy,dummy,dummy);
m += nrecv_this;
}
this->prop().deleteRestartGlobal(dummy,dummy,dummy);
popMeshPropsFromBuffer(&list[m],OPERATION_RESTART,dummy,dummy,dummy);
}
/* ----------------------------------------------------------------------
size of restart data
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::sizeRestartMesh()
{
bool dummy = false;
return meshPropsBufSize(OPERATION_RESTART,dummy,dummy,dummy);
}
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::sizeRestartElement()
{
bool dummy = false;
return elemBufSize(OPERATION_RESTART, NULL, dummy,dummy,dummy);
}
/* ----------------------------------------------------------------------
return required buffer size for a list of elements for borders(),forwardComm()
must match push / pop implementation
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::elemListBufSize(int n,int operation,bool scale,bool translate,bool rotate)
{
return n*elemBufSize(operation, NULL, scale,translate,rotate);
}
/* ----------------------------------------------------------------------
push a list of elements for borders(), forwardComm()
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::pushElemListToBuffer(int n, int *list, int *wraplist, double *buf, int operation, std::list<std::string> * properties, double *dlo, double *dhi, bool , bool, bool)
{
int nsend = 0;
if(OPERATION_COMM_EXCHANGE == operation || OPERATION_COMM_BORDERS == operation)
{
if (!properties || MultiNodeMesh<NUM_NODES>::center_.matches_any_id(properties))
nsend += MultiNodeMesh<NUM_NODES>::center_.pushElemListToBuffer(n,list, wraplist, &(buf[nsend]),operation, dlo, dhi);
if (!properties || MultiNodeMesh<NUM_NODES>::node_.matches_any_id(properties))
nsend += MultiNodeMesh<NUM_NODES>::node_.pushElemListToBuffer(n,list, wraplist, &(buf[nsend]),operation, dlo, dhi);
if (!properties || MultiNodeMesh<NUM_NODES>::rBound_.matches_any_id(properties))
nsend += MultiNodeMesh<NUM_NODES>::rBound_.pushElemListToBuffer(n,list, wraplist, &(buf[nsend]),operation, dlo, dhi);
if(this->node_orig_)
{
if (!properties || MultiNodeMesh<NUM_NODES>::node_orig_->matches_any_id(properties))
nsend += this->node_orig_->pushElemListToBuffer(n,list, wraplist, &(buf[nsend]),operation, dlo, dhi);
}
return nsend;
}
if(OPERATION_COMM_FORWARD == operation)
{
return nsend;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::pushElemToBuffer");
return 0;
}
/* ----------------------------------------------------------------------
pop a list of elements for borders(), forwardComm()
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::popElemListFromBuffer(int first, int n, double *buf, int operation, std::list<std::string> * properties, bool, bool, bool)
{
int nrecv = 0;
if(OPERATION_COMM_EXCHANGE == operation || OPERATION_COMM_BORDERS == operation)
{
if (!properties || MultiNodeMesh<NUM_NODES>::center_.matches_any_id(properties))
nrecv += MultiNodeMesh<NUM_NODES>::center_.popElemListFromBuffer(first,n,&(buf[nrecv]),operation);
if (!properties || MultiNodeMesh<NUM_NODES>::node_.matches_any_id(properties))
nrecv += MultiNodeMesh<NUM_NODES>::node_.popElemListFromBuffer(first,n,&(buf[nrecv]),operation);
if (!properties || MultiNodeMesh<NUM_NODES>::rBound_.matches_any_id(properties))
nrecv += MultiNodeMesh<NUM_NODES>::rBound_.popElemListFromBuffer(first,n,&(buf[nrecv]),operation);
if(MultiNodeMesh<NUM_NODES>::node_orig_)
{
if (!properties || MultiNodeMesh<NUM_NODES>::node_orig_->matches_any_id(properties))
nrecv += MultiNodeMesh<NUM_NODES>::node_orig_->popElemListFromBuffer(first,n,&(buf[nrecv]),operation);
}
return nrecv;
}
if(OPERATION_COMM_FORWARD == operation)
{
// nrecv += MultiNodeMesh<NUM_NODES>::node_.popListFromBuffer(first,n,&(buf[nrecv]),operation);
return nrecv;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::popElemFromBuffer");
return 0;
}
/* ----------------------------------------------------------------------
push a list of elements for reverseComm()
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::pushElemListToBufferReverse(int, int, double*, int operation, std::list<std::string> * properties, bool, bool, bool)
{
int nsend = 0;
if(OPERATION_COMM_REVERSE == operation)
{
return nsend;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::popElemFromBuffer");
return 0;
}
/* ----------------------------------------------------------------------
pop a list of elements for reverseComm()
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::popElemListFromBufferReverse(int, int*, double*, int operation, std::list<std::string> * properties, bool, bool, bool)
{
int nrecv = 0;
if(OPERATION_COMM_REVERSE == operation)
{
return nrecv;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::popElemFromBuffer");
return 0;
}
/* ----------------------------------------------------------------------
return required buffer size for one element for exchange()
must match push / pop implementation
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::elemBufSize(int operation, std::list<std::string> * properties, bool, bool, bool)
{
int size_buf = 0;
if(OPERATION_RESTART == operation)
{
if (!properties || MultiNodeMesh<NUM_NODES>::node_.matches_any_id(properties))
size_buf += MultiNodeMesh<NUM_NODES>::node_.elemBufSize();
return size_buf;
}
if(OPERATION_COMM_EXCHANGE == operation || OPERATION_COMM_BORDERS == operation)
{
if (!properties || MultiNodeMesh<NUM_NODES>::center_.matches_any_id(properties))
size_buf += MultiNodeMesh<NUM_NODES>::center_.elemBufSize();
if (!properties || MultiNodeMesh<NUM_NODES>::node_.matches_any_id(properties))
size_buf += MultiNodeMesh<NUM_NODES>::node_.elemBufSize();
if (!properties || MultiNodeMesh<NUM_NODES>::rBound_.matches_any_id(properties))
size_buf += MultiNodeMesh<NUM_NODES>::rBound_.elemBufSize();
if(MultiNodeMesh<NUM_NODES>::node_orig_)
{
if (!properties || MultiNodeMesh<NUM_NODES>::node_orig_->matches_any_id(properties))
size_buf += MultiNodeMesh<NUM_NODES>::node_orig_->elemBufSize();
}
return size_buf;
}
if(OPERATION_COMM_FORWARD == operation)
{
return size_buf;
}
if(OPERATION_COMM_REVERSE == operation)
{
return size_buf;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::elemBufSize");
return 0;
}
/* ----------------------------------------------------------------------
push one element for exchange()
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::pushElemToBuffer(int i, double *buf, int operation, bool, bool, bool)
{
int nsend = 0;
if(OPERATION_RESTART == operation)
{
nsend += MultiNodeMesh<NUM_NODES>::node_.pushElemToBuffer(i,&(buf[nsend]),operation);
return nsend;
}
if(OPERATION_COMM_EXCHANGE == operation || OPERATION_COMM_BORDERS == operation)
{
nsend += MultiNodeMesh<NUM_NODES>::center_.pushElemToBuffer(i,&(buf[nsend]),operation);
nsend += MultiNodeMesh<NUM_NODES>::node_.pushElemToBuffer(i,&(buf[nsend]),operation);
nsend += MultiNodeMesh<NUM_NODES>::rBound_.pushElemToBuffer(i,&(buf[nsend]),operation);
if(this->node_orig_)
nsend += this->node_orig_->pushElemToBuffer(i,&(buf[nsend]),operation);
return nsend;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::pushElemToBuffer");
return 0;
}
/* ----------------------------------------------------------------------
pop one element for exchange, restart or restart
depending on operation and if mesh scales, translates or rotates,
different properties are communicated
------------------------------------------------------------------------- */
template<int NUM_NODES>
int MultiNodeMeshParallel<NUM_NODES>::popElemFromBuffer(double *buf, int operation, bool, bool, bool)
{
int nrecv = 0;
if(OPERATION_RESTART == operation)
{
MultiVectorContainer<double,NUM_NODES,3> nodeTmp("nodeTmp");
nrecv += nodeTmp.popElemFromBuffer(&(buf[nrecv]),operation);
this->addElement(nodeTmp.begin()[0],-1);
this->prop().deleteRestartElement(nLocal_-1,false,false,false);
return nrecv;
}
if(OPERATION_COMM_EXCHANGE == operation || OPERATION_COMM_BORDERS == operation)
{
nrecv += MultiNodeMesh<NUM_NODES>::center_.popElemFromBuffer(&(buf[nrecv]),operation);
nrecv += MultiNodeMesh<NUM_NODES>::node_.popElemFromBuffer(&(buf[nrecv]),operation);
nrecv += MultiNodeMesh<NUM_NODES>::rBound_.popElemFromBuffer(&(buf[nrecv]),operation);
if(MultiNodeMesh<NUM_NODES>::node_orig_)
nrecv += MultiNodeMesh<NUM_NODES>::node_orig_->popElemFromBuffer(&(buf[nrecv]),operation);
return nrecv;
}
this->error->one(FLERR,"Illegal operation in MultiNodeMeshParallel<NUM_NODES>::popElemFromBuffer");
return 0;
}
#endif
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