mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-27 06:10:34 +05:00
497 lines
12 KiB
C++
497 lines
12 KiB
C++
#ifndef NETGEN_CORE_TABLE_HPP
|
|
#define NETGEN_CORE_TABLE_HPP
|
|
|
|
/**************************************************************************/
|
|
/* File: table.hpp */
|
|
/* Author: Joachim Schoeberl */
|
|
/* Date: 25. Mar. 2000 */
|
|
/**************************************************************************/
|
|
|
|
#include <atomic>
|
|
#include <iostream>
|
|
|
|
#include "array.hpp"
|
|
#include "bitarray.hpp"
|
|
#include "taskmanager.hpp"
|
|
#include "ngcore_api.hpp"
|
|
|
|
namespace ngcore
|
|
{
|
|
|
|
|
|
template <class T>
|
|
class FlatTable
|
|
{
|
|
protected:
|
|
/// number of rows
|
|
size_t size;
|
|
/// pointer to first in row
|
|
size_t * index;
|
|
/// array of data
|
|
T * data;
|
|
|
|
public:
|
|
FlatTable() = delete;
|
|
|
|
NETGEN_INLINE FlatTable(size_t as, size_t * aindex, T * adata)
|
|
: size(as), index(aindex), data(adata) { ; }
|
|
|
|
/// Size of table
|
|
NETGEN_INLINE size_t Size() const { return size; }
|
|
|
|
/// Access entry
|
|
NETGEN_INLINE const FlatArray<T> operator[] (size_t i) const
|
|
{
|
|
return FlatArray<T> (index[i+1]-index[i], data+index[i]);
|
|
}
|
|
|
|
NETGEN_INLINE T * Data() const { return data; }
|
|
|
|
NETGEN_INLINE FlatArray<T> AsArray() const
|
|
{
|
|
return FlatArray<T> (index[size]-index[0], data+index[0]);
|
|
}
|
|
|
|
NETGEN_INLINE FlatArray<size_t> IndexArray() const
|
|
{
|
|
return FlatArray<size_t> (size+1, index);
|
|
}
|
|
|
|
/// takes range starting from position start of end-start elements
|
|
NETGEN_INLINE FlatTable<T> Range (size_t start, size_t end) const
|
|
{
|
|
return FlatTable<T> (end-start, index+start, data);
|
|
}
|
|
|
|
/// takes range starting from position start of end-start elements
|
|
NETGEN_INLINE FlatTable<T> Range (T_Range<size_t> range) const
|
|
{
|
|
return FlatTable<T> (range.Size(), index+range.First(), data);
|
|
}
|
|
|
|
|
|
class Iterator
|
|
{
|
|
const FlatTable & tab;
|
|
size_t row;
|
|
public:
|
|
Iterator (const FlatTable & _tab, size_t _row) : tab(_tab), row(_row) { ; }
|
|
Iterator & operator++ () { ++row; return *this; }
|
|
FlatArray<T> operator* () const { return tab[row]; }
|
|
bool operator!= (const Iterator & it2) { return row != it2.row; }
|
|
};
|
|
|
|
Iterator begin() const { return Iterator(*this, 0); }
|
|
Iterator end() const { return Iterator(*this, size); }
|
|
};
|
|
|
|
NGCORE_API extern size_t * TablePrefixSum32 (FlatArray<unsigned int> entrysize);
|
|
NGCORE_API extern size_t * TablePrefixSum64 (FlatArray<size_t> entrysize);
|
|
|
|
|
|
NETGEN_INLINE size_t * TablePrefixSum (FlatArray<unsigned int> entrysize)
|
|
{ return TablePrefixSum32 (entrysize); }
|
|
NETGEN_INLINE size_t * TablePrefixSum (FlatArray<int> entrysize)
|
|
{ return TablePrefixSum32 (FlatArray<unsigned> (entrysize.Size(), (unsigned int*)(int*)(entrysize.Addr(0)))); }
|
|
NETGEN_INLINE size_t * TablePrefixSum (FlatArray<std::atomic<int>> entrysize)
|
|
{ return TablePrefixSum32 (FlatArray<unsigned> (entrysize.Size(), (unsigned int*)(std::atomic<int>*)entrysize.Addr(0))); }
|
|
NETGEN_INLINE size_t * TablePrefixSum (FlatArray<size_t> entrysize)
|
|
{ return TablePrefixSum64 (entrysize); }
|
|
|
|
|
|
/**
|
|
A compact Table container.
|
|
A table contains size entries of variable size.
|
|
The entry sizes must be known at construction.
|
|
*/
|
|
template <class T>
|
|
class Table : public FlatTable<T>
|
|
{
|
|
protected:
|
|
|
|
using FlatTable<T>::size;
|
|
using FlatTable<T>::index;
|
|
using FlatTable<T>::data;
|
|
|
|
public:
|
|
///
|
|
NETGEN_INLINE Table () : FlatTable<T> (0,nullptr,nullptr) { ; }
|
|
/// Construct table of uniform entrysize
|
|
NETGEN_INLINE Table (size_t asize, size_t entrysize)
|
|
: FlatTable<T>( asize, new size_t[asize+1], new T[asize*entrysize] )
|
|
{
|
|
for (size_t i : IntRange(size+1))
|
|
index[i] = i*entrysize;
|
|
}
|
|
|
|
/// Construct table of variable entrysize
|
|
template <typename TI>
|
|
NETGEN_INLINE Table (FlatArray<TI> entrysize)
|
|
: FlatTable<T> (0, nullptr, nullptr)
|
|
{
|
|
size = entrysize.Size();
|
|
index = TablePrefixSum (entrysize);
|
|
size_t cnt = index[size];
|
|
data = new T[cnt];
|
|
}
|
|
|
|
explicit NETGEN_INLINE Table (const Table<T> & tab2)
|
|
: FlatTable<T>(0, nullptr, nullptr)
|
|
{
|
|
size = tab2.Size();
|
|
|
|
index = new size_t[size+1];
|
|
for (size_t i = 0; i <= size; i++)
|
|
index[i] = tab2.index[i];
|
|
|
|
size_t cnt = index[size];
|
|
data = new T[cnt];
|
|
for (size_t i = 0; i < cnt; i++)
|
|
data[i] = tab2.data[i];
|
|
}
|
|
|
|
NETGEN_INLINE Table (Table<T> && tab2)
|
|
: FlatTable<T>(0, nullptr, nullptr)
|
|
{
|
|
Swap (size, tab2.size);
|
|
Swap (index, tab2.index);
|
|
Swap (data, tab2.data);
|
|
}
|
|
|
|
NETGEN_INLINE Table & operator= (Table<T> && tab2)
|
|
{
|
|
Swap (size, tab2.size);
|
|
Swap (index, tab2.index);
|
|
Swap (data, tab2.data);
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
/// Delete data
|
|
NETGEN_INLINE ~Table ()
|
|
{
|
|
delete [] data;
|
|
delete [] index;
|
|
}
|
|
|
|
/// Size of table
|
|
using FlatTable<T>::Size;
|
|
|
|
/// number of elements in all rows
|
|
NETGEN_INLINE size_t NElements() const { return index[size]; }
|
|
|
|
using FlatTable<T>::operator[];
|
|
};
|
|
|
|
|
|
/// Print table
|
|
template <class T>
|
|
inline ostream & operator<< (ostream & s, const Table<T> & table)
|
|
{
|
|
for (auto i : Range(table))
|
|
{
|
|
s << i << ":";
|
|
for (auto el : table[i])
|
|
s << " " << el;
|
|
s << "\n";
|
|
}
|
|
s << std::flush;
|
|
return s;
|
|
}
|
|
|
|
|
|
|
|
|
|
template <class T>
|
|
class TableCreator
|
|
{
|
|
protected:
|
|
int mode; // 1 .. cnt, 2 .. cnt entries, 3 .. fill table
|
|
std::atomic<size_t> nd;
|
|
Array<std::atomic<int>> cnt;
|
|
Table<T> table;
|
|
public:
|
|
TableCreator()
|
|
{ nd = 0; mode = 1; }
|
|
TableCreator (size_t acnt)
|
|
{ nd = acnt; SetMode(2); }
|
|
|
|
Table<T> MoveTable()
|
|
{
|
|
return std::move(table);
|
|
}
|
|
|
|
bool Done () { return mode > 3; }
|
|
void operator++(int) { SetMode (mode+1); }
|
|
|
|
int GetMode () const { return mode; }
|
|
void SetMode (int amode)
|
|
{
|
|
mode = amode;
|
|
if (mode == 2)
|
|
{
|
|
// cnt.SetSize(nd); // atomic has no copy
|
|
cnt = Array<std::atomic<int>> (nd);
|
|
for (auto & ci : cnt) ci.store (0, std::memory_order_relaxed);
|
|
}
|
|
if (mode == 3)
|
|
{
|
|
table = Table<T> (cnt);
|
|
// for (auto & ci : cnt) ci = 0;
|
|
for (auto & ci : cnt) ci.store (0, std::memory_order_relaxed);
|
|
// cnt = 0;
|
|
}
|
|
}
|
|
|
|
void SetSize (size_t _nd)
|
|
{
|
|
if (mode == 1)
|
|
nd = _nd;
|
|
else
|
|
{
|
|
if (nd != _nd)
|
|
throw Exception ("cannot change size of table-creator");
|
|
}
|
|
}
|
|
|
|
void Add (size_t blocknr, const T & data)
|
|
{
|
|
switch (mode)
|
|
{
|
|
case 1:
|
|
{
|
|
size_t oldval = nd;
|
|
while (blocknr+1>nd) {
|
|
nd.compare_exchange_weak (oldval, blocknr+1);
|
|
oldval = nd;
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
cnt[blocknr]++;
|
|
break;
|
|
case 3:
|
|
int ci = cnt[blocknr]++;
|
|
table[blocknr][ci] = data;
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
void Add (size_t blocknr, IntRange range)
|
|
{
|
|
switch (mode)
|
|
{
|
|
case 1:
|
|
{
|
|
size_t oldval = nd;
|
|
while (blocknr+1>nd) {
|
|
nd.compare_exchange_weak (oldval, blocknr+1);
|
|
oldval = nd;
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
cnt[blocknr] += range.Size();
|
|
break;
|
|
case 3:
|
|
size_t ci = ( cnt[blocknr] += range.Size() ) - range.Size();
|
|
for (size_t j = 0; j < range.Size(); j++)
|
|
table[blocknr][ci+j] = range.First()+j;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Add (size_t blocknr, const FlatArray<int> & dofs)
|
|
{
|
|
switch (mode)
|
|
{
|
|
case 1:
|
|
{
|
|
size_t oldval = nd;
|
|
while (blocknr+1>nd) {
|
|
nd.compare_exchange_weak (oldval, blocknr+1);
|
|
oldval = nd;
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
cnt[blocknr] += dofs.Size();
|
|
break;
|
|
case 3:
|
|
size_t ci = ( cnt[blocknr] += dofs.Size() ) - dofs.Size();
|
|
for (size_t j = 0; j < dofs.Size(); j++)
|
|
table[blocknr][ci+j] = dofs[j];
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
class NGCORE_API FilteredTableCreator : public TableCreator<int>
|
|
{
|
|
protected:
|
|
const BitArray* takedofs;
|
|
public:
|
|
FilteredTableCreator(const BitArray* atakedofs)
|
|
: TableCreator<int>(), takedofs(atakedofs) { };
|
|
FilteredTableCreator(int acnt, const BitArray* atakedofs)
|
|
: TableCreator<int>(acnt),takedofs(atakedofs) { };
|
|
void Add (size_t blocknr, int data);
|
|
void Add (size_t blocknr, IntRange range);
|
|
void Add (size_t blocknr, FlatArray<int> dofs);
|
|
};
|
|
|
|
|
|
/// Base class to generic DynamicTable.
|
|
class BaseDynamicTable
|
|
{
|
|
protected:
|
|
|
|
///
|
|
struct linestruct
|
|
{
|
|
///
|
|
int size;
|
|
///
|
|
int maxsize;
|
|
///
|
|
void * col;
|
|
};
|
|
|
|
///
|
|
Array<linestruct> data;
|
|
///
|
|
char * oneblock;
|
|
|
|
public:
|
|
///
|
|
NGCORE_API BaseDynamicTable (int size);
|
|
///
|
|
NGCORE_API BaseDynamicTable (const Array<int> & entrysizes, int elemsize);
|
|
///
|
|
NGCORE_API ~BaseDynamicTable ();
|
|
|
|
/// Changes Size of table to size, deletes data
|
|
NGCORE_API void SetSize (int size);
|
|
///
|
|
NGCORE_API void IncSize (int i, int elsize);
|
|
|
|
NGCORE_API void DecSize (int i);
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
A dynamic table class.
|
|
|
|
A DynamicTable contains entries of variable size. Entry sizes can
|
|
be increased dynamically.
|
|
*/
|
|
template <class T>
|
|
class DynamicTable : public BaseDynamicTable
|
|
{
|
|
public:
|
|
/// Creates table of size size
|
|
DynamicTable (int size = 0)
|
|
: BaseDynamicTable (size) { ; }
|
|
|
|
/// Creates table with a priori fixed entry sizes.
|
|
DynamicTable (const Array<int> & entrysizes)
|
|
: BaseDynamicTable (entrysizes, sizeof(T)) { ; }
|
|
|
|
/// Inserts element acont into row i. Does not test if already used.
|
|
void Add (int i, const T & acont)
|
|
{
|
|
if (data[i].size == data[i].maxsize)
|
|
IncSize (i, sizeof (T));
|
|
else
|
|
data[i].size++;
|
|
static_cast<T*> (data[i].col) [data[i].size-1] = acont;
|
|
}
|
|
|
|
/// Inserts element acont into row i, iff not yet exists.
|
|
void AddUnique (int i, const T & cont)
|
|
{
|
|
int es = EntrySize (i);
|
|
int * line = const_cast<int*> (GetLine (i));
|
|
for (int j = 0; j < es; j++)
|
|
if (line[j] == cont)
|
|
return;
|
|
Add (i, cont);
|
|
}
|
|
|
|
|
|
/// Inserts element acont into row i. Does not test if already used.
|
|
void AddEmpty (int i)
|
|
{
|
|
IncSize (i, sizeof (T));
|
|
}
|
|
|
|
/** Set the nr-th element in the i-th row to acont.
|
|
Does not check for overflow. */
|
|
void Set (int i, int nr, const T & acont)
|
|
{ static_cast<T*> (data[i].col)[nr] = acont; }
|
|
|
|
|
|
/** Returns the nr-th element in the i-th row.
|
|
Does not check for overflow. */
|
|
const T & Get (int i, int nr) const
|
|
{ return static_cast<T*> (data[i].col)[nr]; }
|
|
|
|
|
|
/** Returns pointer to the first element in row i. */
|
|
const T * GetLine (int i) const
|
|
{ return static_cast<T*> (data[i].col); }
|
|
|
|
|
|
/// Returns size of the table.
|
|
int Size () const
|
|
{ return data.Size(); }
|
|
|
|
/// Returns size of the i-th row.
|
|
int EntrySize (int i) const
|
|
{ return data[i].size; }
|
|
|
|
///
|
|
void DecEntrySize (int i)
|
|
{ DecSize(i); }
|
|
|
|
/// Access entry i
|
|
FlatArray<T> operator[] (int i)
|
|
{ return FlatArray<T> (data[i].size, static_cast<T*> (data[i].col)); }
|
|
|
|
/*
|
|
typedef const FlatArray<T> ConstFlatArray;
|
|
/// Access entry i
|
|
ConstFlatArray operator[] (int i) const
|
|
{ return FlatArray<T> (data[i].size, static_cast<T*> (data[i].col)); }
|
|
*/
|
|
FlatArray<T> operator[] (int i) const
|
|
{ return FlatArray<T> (data[i].size, static_cast<T*> (data[i].col)); }
|
|
};
|
|
|
|
|
|
|
|
|
|
/// Print table
|
|
template <class T>
|
|
inline ostream & operator<< (ostream & s, const DynamicTable<T> & table)
|
|
{
|
|
for (int i = 0; i < table.Size(); i++)
|
|
{
|
|
s << i << ":";
|
|
for (int j = 0; j < table[i].Size(); j++)
|
|
s << " " << table[i][j];
|
|
s << "\n";
|
|
}
|
|
s << std::flush;
|
|
return s;
|
|
}
|
|
|
|
typedef DynamicTable<int> IntTable;
|
|
|
|
} // namespace ngcore
|
|
|
|
#endif // NETGEN_CORE_TABLE_HPP
|