phoenix_template_alloc_impl.h File Reference

#include "phoenix_template_alloc.h"

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Functions
template<typename T>
bool	phoenix_checkIsAligned (const T *ptr)
	Check if the given pointer is aligned.
template<typename T>
size_t	phoenix_getPadding (size_t nbElement)
	Get the padding with respect to the number of elements of the tables.
template<typename T>
void	phoenix_newAlignedTab (T *&alignedPtr, size_t sizeOfVectorInT)
	Alloc an aligned vector.
template<typename T>
T *	phoenix_template_alloc (size_t &padding, bool &isAligned, Phoenix::AllocMode mode, const size_t *tabDim, size_t nbDim)
	Allocate a tensor.
template<typename T>
T *	phoenix_template_alloc_aligned1d (size_t nbValue)
	Do a template allcoation of a type.

Function Documentation

phoenix_checkIsAligned()

template<typename T>

bool phoenix_checkIsAligned

(

const T *

ptr

)

Check if the given pointer is aligned.

Parameters

ptr

: pointer

Returns

true if the given pointer is aligned, false otherwise

Definition at line 101 of file phoenix_template_alloc_impl.h.

                                         {
        return (((size_t)ptr) % phoenix_alignement_in_bytes<T>()) == 0lu;
}

References phoenix_alignement_in_bytes().

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phoenix_getPadding()

template<typename T>

size_t phoenix_getPadding

(

size_t

nbElement

)

Get the padding with respect to the number of elements of the tables.

Parameters

nbElement

: number of elements of the table

Returns

associated padding

Definition at line 17 of file phoenix_template_alloc_impl.h.

                                           {
        size_t regVecSizeType(phoenix_alignement_type<T>());
        size_t padding = regVecSizeType - (nbElement % regVecSizeType);
        if(padding == regVecSizeType){padding = 0lu;}
        return padding;
}

References phoenix_alignement_type().

Referenced by phoenix_template_alloc().

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phoenix_newAlignedTab()

template<typename T>

void phoenix_newAlignedTab	(	T *&	alignedPtr,
		size_t	sizeOfVectorInT )

Alloc an aligned vector.

Parameters

alignedPtr	: aligned pointor
sizeOfVectorInT	: size of the vector we want to allocate
alignementInBytes	: alignement of the vector we want to allocate, in bytes

Usage : T* alignedVector = NULL; newAlignedTab(alignedVector, sizeOfVectorInT); ... Using of alignedVector pointor ... freeAlignedVector(alignedVector);

Definition at line 92 of file phoenix_template_alloc_impl.h.

                                                                   {
        alignedPtr = (T*)phoenix_allocAlignedTab(sizeOfVectorInT*sizeof(T), phoenix_alignement_in_bytes<T>());
}

References phoenix_alignement_in_bytes(), and phoenix_allocAlignedTab().

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phoenix_template_alloc()

template<typename T>

T * phoenix_template_alloc	(	size_t &	padding,
		bool &	isAligned,
		Phoenix::AllocMode	mode,
		const size_t *	tabDim,
		size_t	nbDim )

Allocate a tensor.

Parameters

[out]	padding	: padding of the allocated tensor if it needs one
[out]	isAligned	: true if the allocated tensor is aligned, false otherwise
	mode	: allocation mode
	tabDim	: table of the dimensions of the tensor
	nbDim	: number of dimensions of the tensor

Returns

allocated pointer or NULL on failure

Definition at line 33 of file phoenix_template_alloc_impl.h.

                                                                                                                          {
        padding = 0lu;
        isAligned = false;
        if(mode == Phoenix::NONE){
                T * tabData = new T[phoenix_getFullSize(tabDim, nbDim)];
                return tabData;
        }else if(mode == Phoenix::ALIGNED){
                isAligned = true;
                size_t alignementInByte(phoenix_alignement_in_bytes<T>());
                if(alignementInByte == 0lu){    //No alignement for this type
                        T * tabData = new T[phoenix_getFullSize(tabDim, nbDim)];
                        return tabData;
                }else{
                        T * tabData = (T*)phoenix_allocAlignedTab(phoenix_getFullSize(tabDim, nbDim)*sizeof(T), alignementInByte);
                        return tabData;
                }
        }else if(mode == Phoenix::PADDING){
                isAligned = true;
                size_t alignementInByte(phoenix_alignement_in_bytes<T>());
                if(alignementInByte == 0lu){    //No alignement for this type
                        T * tabData = new T[phoenix_getFullSize(tabDim, nbDim)];
                        return tabData;
                }else{
                        size_t fullSize(phoenix_getFullSize(tabDim, nbDim));
                        size_t nbCol(tabDim[nbDim - 1lu]);
                        size_t nbRow(fullSize/nbCol);
                        padding = phoenix_getPadding<T>(nbCol);
                        T * tabData = (T*)phoenix_allocAlignedTab((nbRow*(nbCol + padding))*sizeof(T), alignementInByte);
                        return tabData;
                }
        }
        return NULL;
}

References Phoenix::ALIGNED, Phoenix::NONE, Phoenix::PADDING, phoenix_alignement_in_bytes(), phoenix_allocAlignedTab(), phoenix_getFullSize(), and phoenix_getPadding().

Referenced by phoenix_template_alloc_aligned1d().

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phoenix_template_alloc_aligned1d()

template<typename T>

T * phoenix_template_alloc_aligned1d

(

size_t

nbValue

)

Do a template allcoation of a type.

Parameters

nbValue

: number of value to be allcoated

Returns

allcated table

Definition at line 72 of file phoenix_template_alloc_impl.h.

                                                    {
        size_t padding(0lu);
        bool isAligned(false);
        return phoenix_template_alloc<T>(padding, isAligned, Phoenix::ALIGNED, &nbValue, 1lu);
}

References Phoenix::ALIGNED, and phoenix_template_alloc().

Referenced by PAlignedAllocator< T >::allocate().

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