NVArena
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class zhetapi::NVArena
An allocator class for Nvidia GPUs. Has additional features like warnings for memory leaks and copy bound errors. Overall is a more convenient interface to GPU memory than standard CUDA operations like
cudaMallocandcudaMemcpy.Public Functions
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template<class T>
T *alloc(size_t = 1) Allocates a block of items of a specific type.
- Template Parameters
t – the specific type of item to allocate.
- Parameters
items – the number of items to allocate.
- Returns
the allocated block.
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template<class T>
void free(T*) Frees a block of items of a specific type.
- Template Parameters
T – the specific type of item to free.
- Parameters
ptr – the block of memory to be freed.
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template<class T>
void write(T*, T*, size_t = 1) Copies a block of memory from host memory to GPU memory, using
cudaMemcpy.- Template Parameters
T – the type of each element in the blocks of memory.
- Parameters
dst – the pointer to the destination in GPU memory.
src – the pointer to the block in host memory.
n – the number of items to copy (note that this copies
n * sizeof(T)bytes in total).
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template<class T>
void read(T*, T*, size_t = 1) Copies a block of memory from GPU memory to host memory, using
cudaMemcpy.- Template Parameters
T – the type of each element in the blocks of memory.
- Parameters
dst – the pointer to the destination in host memory.
src – the pointer to the block in GPU memory.
n – the number of items to copy (note that this copies
n * sizeof(T)bytes in total).
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class double_free : public runtime_error
This exceptoin is thrown if the user frees a piece of memory more than once. The allocator keeps track of all allocated blocks for this.
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class segfault : public runtime_error
This exception is thrown if the user tries to free a piece of memory that was never allocated.
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template<class T>