thrust::mr::pool_options#
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struct pool_options#
A type used for configuring pooling resource adaptors, to fine-tune their behavior and parameters.
Public Functions
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inline bool validate() const#
Checks if the options are self-consistent.
/returns true if the options are self-consistent, false otherwise.
Public Members
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std::size_t min_blocks_per_chunk#
The minimal number of blocks, i.e. pieces of memory handed off to the user from a pool of a given size, in a single chunk allocated from upstream.
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std::size_t min_bytes_per_chunk#
The minimal number of bytes in a single chunk allocated from upstream.
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std::size_t max_blocks_per_chunk#
The maximal number of blocks, i.e. pieces of memory handed off to the user from a pool of a given size, in a single chunk allocated from upstream.
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std::size_t max_bytes_per_chunk#
The maximal number of bytes in a single chunk allocated from upstream.
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std::size_t smallest_block_size#
The size of blocks in the smallest pool covered by the pool resource. All allocation requests below this size will be rounded up to this size.
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std::size_t largest_block_size#
The size of blocks in the largest pool covered by the pool resource. All allocation requests above this size will be considered oversized, allocated directly from upstream (and not from a pool), and cached only of
cache_oversized
is true.
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std::size_t alignment#
The alignment of all blocks in internal pools of the pool resource. All allocation requests above this alignment will be considered oversized, allocated directly from upstream (and not from a pool), and cached only of
cache_oversized
is true.
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bool cache_oversized#
Decides whether oversized and overaligned blocks are cached for later use, or immediately return it to the upstream resource.
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std::size_t cached_size_cutoff_factor#
The size factor at which a cached allocation is considered too ridiculously oversized to use to fulfill an allocation request. For instance: the user requests an allocation of size 1024 bytes. A block of size 32 * 1024 bytes is cached. If
cached_size_cutoff_factor
is 32 or less, this block will be considered too big for that allocation request.
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std::size_t cached_alignment_cutoff_factor#
The alignment factor at which a cached allocation is considered too ridiculously overaligned to use to fulfill an allocation request. For instance: the user requests an allocation aligned to 32 bytes. A block aligned to 1024 bytes is cached. If
cached_size_cutoff_factor
is 32 or less, this block will be considered too overaligned for that allocation request.
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inline bool validate() const#