walberla::gpu::HostFieldAllocator< T, HostAllocFlags > Class Template Reference
Detailed Description
template<typename T, unsigned int HostAllocFlags = gpuHostAllocDefault>
class walberla::gpu::HostFieldAllocator< T, HostAllocFlags >
Allocator that allocates a CPU! field using gpuHostAlloc without padding.
Uses gpuHostAlloc for the allocation - which allocates page-locked memory that is faster to transfer to the GPU This allocator should be used for CPU fields that are often transferred to GPU and back
#include <HostFieldAllocator.h>
Inheritance diagram for walberla::gpu::HostFieldAllocator< T, HostAllocFlags >:
Public Member Functions | |
| virtual | ~HostFieldAllocator ()=default |
| virtual T * | allocateMemory (uint_t size0, uint_t size1, uint_t size2, uint_t size3, uint_t &allocSize1, uint_t &allocSize2, uint_t &allocSize3) |
| Same as allocated, without handling of reference counter. More... | |
| virtual T * | allocateMemory (uint_t size) |
| Same as allocated, without handling of reference counter. More... | |
| virtual void | deallocate (T *&values) |
| Deallocates memory that has been allocated using allocate() More... | |
| Public Member Functions inherited from walberla::field::FieldAllocator< T > | |
| virtual | ~FieldAllocator ()=default |
| T * | allocate (uint_t size0, uint_t size1, uint_t size2, uint_t size3, uint_t &allocSize1, uint_t &allocSize2, uint_t &allocSize3) |
| Allocate memory for a field of given sizes and initializes reference counter with one. More... | |
| virtual void | setInnerGhostLayerSize (uint_t) |
| T * | allocate (uint_t allocSize) |
| Allocate memory of the given size. More... | |
| void | incrementReferenceCount (T *mem) |
| Increments the reference count for the given pointer. More... | |
| bool | decrementReferenceCount (T *mem) |
| Decrements the reference count for the given pointer. More... | |
| uint_t | referenceCount (T *mem) const |
Additional Inherited Members | |
| Public Types inherited from walberla::field::FieldAllocator< T > | |
| using | BaseType = typename std::conditional< VectorTrait< T >::F_SIZE!=0, typename VectorTrait< T >::OutputType, T >::type |
Constructor & Destructor Documentation
◆ ~HostFieldAllocator()
template<typename T , unsigned int HostAllocFlags = gpuHostAllocDefault>
|
virtualdefault |
Member Function Documentation
◆ allocateMemory() [1/2]
template<typename T , unsigned int HostAllocFlags = gpuHostAllocDefault>
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inlinevirtual |
Same as allocated, without handling of reference counter.
Implements walberla::field::FieldAllocator< T >.
◆ allocateMemory() [2/2]
template<typename T , unsigned int HostAllocFlags = gpuHostAllocDefault>
|
inlinevirtual |
Same as allocated, without handling of reference counter.
Implements walberla::field::FieldAllocator< T >.
◆ deallocate()
template<typename T , unsigned int HostAllocFlags = gpuHostAllocDefault>
|
inlinevirtual |
Deallocates memory that has been allocated using allocate()
- Parameters
-
values Return value of allocate function()
Implements walberla::field::FieldAllocator< T >.
The documentation for this class was generated from the following file:
- /builds/administration/walberla-website/walberla/src/gpu/HostFieldAllocator.h