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//
// Tpetra: Templated Linear Algebra Services Package
// Copyright (2008) Sandia Corporation
//
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#ifndef TPETRA_KOKKOS_REFACTOR_DETAILS_MULTI_VECTOR_DIST_OBJECT_KERNELS_UQ_PCE_HPP
#define TPETRA_KOKKOS_REFACTOR_DETAILS_MULTI_VECTOR_DIST_OBJECT_KERNELS_UQ_PCE_HPP
//----------------------------------------------------------------------------
// Specializations of Tpetra::MultiVector pack/unpack kernels for UQ::PCE
//----------------------------------------------------------------------------
#include "Tpetra_KokkosRefactor_Details_MultiVectorDistObjectKernels.hpp"
#include "Stokhos_Sacado_Kokkos_UQ_PCE.hpp"
#include "Kokkos_Parallel_MP_Vector.hpp"
// For device_is_cuda<>
#include "Tpetra_KokkosRefactor_Details_MultiVectorDistObjectKernels_MP_Vector.hpp"
namespace Tpetra {
namespace KokkosRefactor {
namespace Details {
// Functors for implementing packAndPrepare and unpackAndCombine
// through parallel_for
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename IdxView>
struct PackArraySingleColumn<
Kokkos::View<Sacado::UQ::PCE<DS>*,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...>,
IdxView >
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>*,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
IdxView idx;
size_t col;
PackArraySingleColumn(const DstView& dst_,
const SrcView& src_,
const IdxView& idx_,
size_t col_) :
dst(dst_), src(src_), idx(idx_), col(col_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
dst(k) = src(idx(k), col);
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
dst(k).fastAccessCoeff(i) = src(idx(k), col).fastAccessCoeff(i);
}
static void pack(const DstView& dst,
const SrcView& src,
const IdxView& idx,
size_t col) {
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( idx.size(), BlockSize ),
PackArraySingleColumn(dst,src,idx,col) );
else
Kokkos::parallel_for( idx.size(),
PackArraySingleColumn(dst,src,idx,col) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename IdxView>
struct PackArrayMultiColumn<
Kokkos::View<Sacado::UQ::PCE<DS>*,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...>,
IdxView >
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>*,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
IdxView idx;
size_t numCols;
PackArrayMultiColumn(const DstView& dst_,
const SrcView& src_,
const IdxView& idx_,
size_t numCols_) :
dst(dst_), src(src_), idx(idx_), numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
dst(offset + j) = src(localRow, j);
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
dst(offset + j).fastAccessCoeff(i) =
src(localRow, j).fastAccessCoeff(i);
}
static void pack(const DstView& dst,
const SrcView& src,
const IdxView& idx,
size_t numCols) {
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( idx.size(), BlockSize ),
PackArrayMultiColumn(dst,src,idx,numCols) );
else
Kokkos::parallel_for( idx.size(),
PackArrayMultiColumn(dst,src,idx,numCols) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename IdxView,
typename ColView>
struct PackArrayMultiColumnVariableStride<
Kokkos::View<Sacado::UQ::PCE<DS>*,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...>,
IdxView,
ColView>
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>*,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
IdxView idx;
ColView col;
size_t numCols;
PackArrayMultiColumnVariableStride(const DstView& dst_,
const SrcView& src_,
const IdxView& idx_,
const ColView& col_,
size_t numCols_) :
dst(dst_), src(src_), idx(idx_), col(col_), numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
dst(offset + j) = src(localRow, col(j));
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
dst(offset + j).fastAccessCoeff(i) =
src(localRow, col(j)).fastAccessCoeff(i);
}
static void pack(const DstView& dst,
const SrcView& src,
const IdxView& idx,
const ColView& col,
size_t numCols) {
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( idx.size(), BlockSize ),
PackArrayMultiColumnVariableStride(dst,src,idx,col,numCols) );
else
Kokkos::parallel_for( idx.size(),
PackArrayMultiColumnVariableStride(
dst,src,idx,col,numCols) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename IdxView, typename Op>
struct UnpackArrayMultiColumn<
Kokkos::View<Sacado::UQ::PCE<DS>**,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>*,SP...>,
IdxView,
Op >
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>**,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>*,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
IdxView idx;
Op op;
size_t numCols;
UnpackArrayMultiColumn(const DstView& dst_,
const SrcView& src_,
const IdxView& idx_,
const Op& op_,
size_t numCols_) :
dst(dst_), src(src_), idx(idx_), op(op_), numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
op( dst(localRow,j), src(offset+j) );
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
op( dst(localRow,j).fastAccessCoeff(i),
src(offset+j).fastAccessCoeff(i) );
}
static void unpack(const DstView& dst,
const SrcView& src,
const IdxView& idx,
const Op& op,
size_t numCols) {
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( idx.size(), BlockSize ),
UnpackArrayMultiColumn(dst,src,idx,op,numCols) );
else
Kokkos::parallel_for( idx.size(),
UnpackArrayMultiColumn(dst,src,idx,op,numCols) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename IdxView, typename ColView, typename Op>
struct UnpackArrayMultiColumnVariableStride<
Kokkos::View<Sacado::UQ::PCE<DS>**,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>*,SP...>,
IdxView,
ColView,
Op>
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>**,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>*,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
IdxView idx;
ColView col;
Op op;
size_t numCols;
UnpackArrayMultiColumnVariableStride(const DstView& dst_,
const SrcView& src_,
const IdxView& idx_,
const ColView& col_,
const Op& op_,
size_t numCols_) :
dst(dst_), src(src_), idx(idx_), col(col_), op(op_), numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
op( dst(localRow,col(j)), src(offset+j) );
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename IdxView::value_type localRow = idx(k);
const size_t offset = k*numCols;
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
op( dst(localRow,col(j)).fastAccessCoeff(i),
src(offset+j).fastAccessCoeff(i) );
}
static void unpack(const DstView& dst,
const SrcView& src,
const IdxView& idx,
const ColView& col,
const Op& op,
size_t numCols) {
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( idx.size(), BlockSize ),
UnpackArrayMultiColumnVariableStride(dst,src,idx,col,op,numCols) );
else
Kokkos::parallel_for( idx.size(),
UnpackArrayMultiColumnVariableStride(
dst,src,idx,col,op,numCols) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename DstIdxView, typename SrcIdxView>
struct PermuteArrayMultiColumn<
Kokkos::View<Sacado::UQ::PCE<DS>**,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...>,
DstIdxView,
SrcIdxView>
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>**,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
DstIdxView dst_idx;
SrcIdxView src_idx;
size_t numCols;
PermuteArrayMultiColumn(const DstView& dst_,
const SrcView& src_,
const DstIdxView& dst_idx_,
const SrcIdxView& src_idx_,
size_t numCols_) :
dst(dst_), src(src_), dst_idx(dst_idx_), src_idx(src_idx_),
numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename DstIdxView::value_type toRow = dst_idx(k);
const typename SrcIdxView::value_type fromRow = src_idx(k);
for (size_t j = 0; j < numCols; ++j)
dst(toRow, j) = src(fromRow, j);
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename DstIdxView::value_type toRow = dst_idx(k);
const typename SrcIdxView::value_type fromRow = src_idx(k);
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
dst(toRow, j).fastAccessCoeff(i) =
src(fromRow, j).fastAccessCoeff(i);
}
static void permute(const DstView& dst,
const SrcView& src,
const DstIdxView& dst_idx,
const SrcIdxView& src_idx,
size_t numCols) {
const size_type n = std::min( dst_idx.size(), src_idx.size() );
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( n, BlockSize ),
PermuteArrayMultiColumn(dst,src,dst_idx,src_idx,numCols) );
else
Kokkos::parallel_for(
n, PermuteArrayMultiColumn(dst,src,dst_idx,src_idx,numCols) );
}
};
template <typename DS, typename ... DP,
typename SS, typename ... SP,
typename DstIdxView, typename SrcIdxView,
typename DstColView, typename SrcColView>
struct PermuteArrayMultiColumnVariableStride<
Kokkos::View<Sacado::UQ::PCE<DS>**,DP...>,
Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...>,
DstIdxView, SrcIdxView,
DstColView, SrcColView >
{
typedef Kokkos::View<Sacado::UQ::PCE<DS>**,DP...> DstView;
typedef Kokkos::View<const Sacado::UQ::PCE<SS>**,SP...> SrcView;
typedef typename DstView::execution_space execution_space;
typedef typename execution_space::size_type size_type;
static const unsigned BlockSize = 32;
DstView dst;
SrcView src;
DstIdxView dst_idx;
SrcIdxView src_idx;
DstColView dst_col;
SrcColView src_col;
size_t numCols;
PermuteArrayMultiColumnVariableStride(const DstView& dst_,
const SrcView& src_,
const DstIdxView& dst_idx_,
const SrcIdxView& src_idx_,
const DstColView& dst_col_,
const SrcColView& src_col_,
size_t numCols_) :
dst(dst_), src(src_), dst_idx(dst_idx_), src_idx(src_idx_),
dst_col(dst_col_), src_col(src_col_),
numCols(numCols_) {}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k ) const {
const typename DstIdxView::value_type toRow = dst_idx(k);
const typename SrcIdxView::value_type fromRow = src_idx(k);
for (size_t j = 0; j < numCols; ++j)
dst(toRow, dst_col(j)) = src(fromRow, src_col(j));
}
KOKKOS_INLINE_FUNCTION
void operator()( const size_type k, const size_type tidx ) const {
const typename DstIdxView::value_type toRow = dst_idx(k);
const typename SrcIdxView::value_type fromRow = src_idx(k);
for (size_t j = 0; j < numCols; ++j)
for (size_type i=tidx; i<Kokkos::dimension_scalar(dst); i+=BlockSize)
dst(toRow, dst_col(j)).fastAccessCoeff(i) =
src(fromRow, src_col(j)).fastAccessCoeff(i);
}
static void permute(const DstView& dst,
const SrcView& src,
const DstIdxView& dst_idx,
const SrcIdxView& src_idx,
const DstColView& dst_col,
const SrcColView& src_col,
size_t numCols) {
const size_type n = std::min( dst_idx.size(), src_idx.size() );
if ( Details::device_is_cuda<execution_space>::value )
Kokkos::parallel_for(
Kokkos::MPVectorWorkConfig<execution_space>( n, BlockSize ),
PermuteArrayMultiColumnVariableStride(
dst,src,dst_idx,src_idx,dst_col,src_col,numCols) );
else
Kokkos::parallel_for(
n, PermuteArrayMultiColumnVariableStride(
dst,src,dst_idx,src_idx,dst_col,src_col,numCols) );
}
};
} // Details namespace
} // KokkosRefactor namespace
} // Tpetra namespace
#endif // TPETRA_KOKKOS_REFACTOR_DETAILS_MULTI_VECTOR_DIST_OBJECT_KERNELS_UQ_PCE_HPP
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