Resource that uses Upstream to allocate memory and tracks statistics on memory allocations. More...

#include <statistics_resource_adaptor.hpp>

Inheritance diagram for rmm::mr::statistics_resource_adaptor< Upstream >:

Collaboration diagram for rmm::mr::statistics_resource_adaptor< Upstream >:

Classes
struct	counter
	Utility struct for counting the current, peak, and total value of a number. More...

Public Types
using	read_lock_t = std::shared_lock< std::shared_timed_mutex >
	Type of lock used to synchronize read access.

using	write_lock_t = std::unique_lock< std::shared_timed_mutex >
	Type of lock used to synchronize write access.

Public Member Functions
	statistics_resource_adaptor (Upstream *upstream)
	Construct a new statistics resource adaptor using `upstream` to satisfy allocation requests. More...

	statistics_resource_adaptor (statistics_resource_adaptor const &)=delete

statistics_resource_adaptor &	operator= (statistics_resource_adaptor const &)=delete

	statistics_resource_adaptor (statistics_resource_adaptor &&) noexcept=default
	Default move constructor.

statistics_resource_adaptor &	operator= (statistics_resource_adaptor &&) noexcept=default
	Default move assignment operator. More...

Upstream *	get_upstream () const noexcept
	Pointer to the upstream resource. More...

bool	supports_streams () const noexcept override
	Checks whether the upstream resource supports streams. More...

bool	supports_get_mem_info () const noexcept override
	Query whether the resource supports the get_mem_info API. More...

counter	get_bytes_counter () const noexcept
	Returns a `counter` struct for this adaptor containing the current, peak, and total number of allocated bytes for this adaptor since it was created. More...

counter	get_allocations_counter () const noexcept
	Returns a `counter` struct for this adaptor containing the current, peak, and total number of allocation counts for this adaptor since it was created. More...

Public Member Functions inherited from rmm::mr::device_memory_resource
	device_memory_resource (device_memory_resource const &)=default
	Default copy constructor.

	device_memory_resource (device_memory_resource &&) noexcept=default
	Default move constructor.

device_memory_resource &	operator= (device_memory_resource const &)=default
	Default copy assignment operator. More...

device_memory_resource &	operator= (device_memory_resource &&) noexcept=default
	Default move assignment operator. More...

void *	allocate (std::size_t bytes, cuda_stream_view stream=cuda_stream_view{})
	Allocates memory of size at least `bytes`. More...

void	deallocate (void *ptr, std::size_t bytes, cuda_stream_view stream=cuda_stream_view{})
	Deallocate memory pointed to by `p`. More...

bool	is_equal (device_memory_resource const &other) const noexcept
	Compare this resource to another. More...

std::pair< std::size_t, std::size_t >	get_mem_info (cuda_stream_view stream) const
	Queries the amount of free and total memory for the resource. More...

Detailed Description

template<typename Upstream>
class rmm::mr::statistics_resource_adaptor< Upstream >

Resource that uses Upstream to allocate memory and tracks statistics on memory allocations.

An instance of this resource can be constructed with an existing, upstream resource in order to satisfy allocation requests, but any existing allocations will be untracked. Tracking statistics stores the current, peak and total memory allocations for both the number of bytes and number of calls to the memory resource. statistics_resource_adaptor is intended as a debug adaptor and shouldn't be used in performance-sensitive code.

Template Parameters

Upstream Type of the upstream resource used for allocation/deallocation.

Constructor & Destructor Documentation

◆ statistics_resource_adaptor()

template<typename Upstream >

rmm::mr::statistics_resource_adaptor< Upstream >::statistics_resource_adaptor ( Upstream * upstream )

inline

Construct a new statistics resource adaptor using upstream to satisfy allocation requests.

Exceptions

<tt>rmm::logic_error</tt> if upstream == nullptr

Parameters

upstream The resource used for allocating/deallocating device memory

Member Function Documentation

◆ get_allocations_counter()

template<typename Upstream >

counter rmm::mr::statistics_resource_adaptor< Upstream >::get_allocations_counter ( ) const

inlinenoexcept

Returns a counter struct for this adaptor containing the current, peak, and total number of allocation counts for this adaptor since it was created.

Returns: counter struct containing allocations count

◆ get_bytes_counter()

template<typename Upstream >

counter rmm::mr::statistics_resource_adaptor< Upstream >::get_bytes_counter ( ) const

inlinenoexcept

Returns a counter struct for this adaptor containing the current, peak, and total number of allocated bytes for this adaptor since it was created.

Returns: counter struct containing bytes count

◆ get_upstream()

template<typename Upstream >

Upstream* rmm::mr::statistics_resource_adaptor< Upstream >::get_upstream ( ) const

inlinenoexcept

Pointer to the upstream resource.

Returns: Pointer to the upstream resource

◆ operator=()

template<typename Upstream >

statistics_resource_adaptor& rmm::mr::statistics_resource_adaptor< Upstream >::operator= ( statistics_resource_adaptor< Upstream > && )

defaultnoexcept

Default move assignment operator.

Returns: statistics_resource_adaptor& Reference to the assigned object

◆ supports_get_mem_info()

template<typename Upstream >

bool rmm::mr::statistics_resource_adaptor< Upstream >::supports_get_mem_info ( ) const

inlineoverridevirtualnoexcept

Query whether the resource supports the get_mem_info API.

Returns: bool true if the upstream resource supports get_mem_info, false otherwise.

Implements rmm::mr::device_memory_resource.

◆ supports_streams()

template<typename Upstream >

bool rmm::mr::statistics_resource_adaptor< Upstream >::supports_streams ( ) const

inlineoverridevirtualnoexcept

Checks whether the upstream resource supports streams.

Returns: true The upstream resource supports streams; false The upstream resource does not support streams.

Implements rmm::mr::device_memory_resource.

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

statistics_resource_adaptor.hpp

Classes

Public Types

Public Member Functions

Detailed Description

template<typename Upstream> class rmm::mr::statistics_resource_adaptor< Upstream >

Constructor & Destructor Documentation

◆ statistics_resource_adaptor()

Member Function Documentation

◆ get_allocations_counter()

◆ get_bytes_counter()

◆ get_upstream()

◆ operator=()

◆ supports_get_mem_info()

◆ supports_streams()

template<typename Upstream>
class rmm::mr::statistics_resource_adaptor< Upstream >