CaloRecGPU::Helpers::MemoryManagement< T, indexer > Class Template Reference

! Handles allocation of a type T, using indexer as the integer type to indicate sizes. More...

#include <Helpers.h>

Collaboration diagram for CaloRecGPU::Helpers::MemoryManagement< T, indexer >:

Classes
struct	copy_helper
struct	copy_helper< MemoryContext::CPU, MemoryContext::CPU, dummy >
struct	copy_helper< MemoryContext::CPU, MemoryContext::CUDAGPU, dummy >
struct	copy_helper< MemoryContext::CPU, MemoryContext::CUDAPinnedCPU, dummy >
struct	copy_helper< MemoryContext::CUDAGPU, MemoryContext::CPU, dummy >
struct	copy_helper< MemoryContext::CUDAGPU, MemoryContext::CUDAGPU, dummy >
struct	copy_helper< MemoryContext::CUDAGPU, MemoryContext::CUDAPinnedCPU, dummy >
struct	copy_helper< MemoryContext::CUDAPinnedCPU, MemoryContext::CPU, dummy >
struct	copy_helper< MemoryContext::CUDAPinnedCPU, MemoryContext::CUDAGPU, dummy >
struct	copy_helper< MemoryContext::CUDAPinnedCPU, MemoryContext::CUDAPinnedCPU, dummy >
struct	move_helper
struct	move_helper< C, C, dummy >
struct	unary_helper
struct	unary_helper< MemoryContext::CPU, dummy >
struct	unary_helper< MemoryContext::CUDAGPU, dummy >
struct	unary_helper< MemoryContext::CUDAPinnedCPU, dummy >

Static Public Member Functions
template<class Context >
static T *	allocate (const indexer size)
	! More...
template<class Context >
static void	deallocate (T *&arr)
	! More...
template<class DestContext , class SourceContext >
static void	copy (T *dest, const T *const source, const indexer sz)
	! More...
template<class DestContext , class SourceContext >
static void	move (T *&dest, T *&source, const indexer sz)
	! More...

Detailed Description

template<class T, class indexer>
class CaloRecGPU::Helpers::MemoryManagement< T, indexer >

! Handles allocation of a type T, using indexer as the integer type to indicate sizes.

Definition at line 476 of file Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h.

Member Function Documentation

allocate()

template<class T , class indexer >

template<class Context >

static T* CaloRecGPU::Helpers::MemoryManagement< T, indexer >::allocate ( const indexer  size )

inlinestatic

!

Allocates size elements from memory context Context

Definition at line 620 of file Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h.

      {
        T * ret = nullptr;
        if (size > 0)
          {
            ret = unary_helper<Context>::allocate(size);
          }
#if CALORECGPU_HELPERS_DEBUG
        std::cerr << "ALLOCATED " << size << " x " << sizeof(T) << " in " << Context::name << ": " << ret << std::endl;
#endif
        return ret;
      }

copy()

template<class T , class indexer >

template<class DestContext , class SourceContext >

static void CaloRecGPU::Helpers::MemoryManagement< T, indexer >::copy ( T *  dest, const T *const  source, const indexer  sz  )

inlinestatic

!

Copies sz bytes from source in SourceContext to dest in DestContext

Definition at line 652 of file Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h.

      {
        if (sz > 0 && source != nullptr)
          {
            copy_helper<DestContext, SourceContext>::copy(dest, source, sz);
          }
#if CALORECGPU_HELPERS_DEBUG
        std::cerr << "COPIED " << sz << " from " << SourceContext::name << " to " << DestContext::name << ": " << source << " to " << dest << std::endl;
#endif
      }

deallocate()

template<class T , class indexer >

template<class Context >

static void CaloRecGPU::Helpers::MemoryManagement< T, indexer >::deallocate ( T *&  arr )

inlinestatic

!

Deallocates arr from memory context Context

Definition at line 634 of file Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h.

      {
        if (arr == nullptr)
          //This check is to ensure the code behaves on non-CUDA enabled platforms
          //where some destructors might still be called with nullptr.
          {
            return;
          }
        unary_helper<Context>::deallocate(arr);
#if CALORECGPU_HELPERS_DEBUG
        std::cerr << "DEALLOCATED in " << Context::name << ": " << arr << std::endl;
#endif
        arr = nullptr;
      }

move()

template<class T , class indexer >

template<class DestContext , class SourceContext >

static void CaloRecGPU::Helpers::MemoryManagement< T, indexer >::move ( T *&  dest, T *&  source, const indexer  sz  )

inlinestatic

!

Moves sz bytes from source in SourceContext to dest in DestContext (performing the necessary data transfers and deallocations when the contexts are different). source is set to null and dest may be nulled if sz is 0 or source is null too.

Definition at line 670 of file Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h.

      {
#if CALORECGPU_HELPERS_DEBUG
        std::cerr << "MOVED " << sz << " from " << SourceContext::name << " to " << DestContext::name << ": " << source << " to " << dest;
#endif
        if (sz > 0 && source != nullptr)
          {
            move_helper<DestContext, SourceContext, std::is_same<DestContext, SourceContext>>::move(dest, source, sz);
          }
        else
          {
            dest = nullptr;
            deallocate<SourceContext>(source);
          }
#if CALORECGPU_HELPERS_DEBUG
        std::cerr << " | " << source << " to " << dest << std::endl;
#endif
      }

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The documentation for this class was generated from the following file:

• Calorimeter/CaloRecGPU/CaloRecGPU/Helpers.h