20 #include <rmm/detail/error.hpp>
21 #include <rmm/detail/exec_check_disable.hpp>
22 #include <rmm/detail/export.hpp>
27 #include <cuda/memory_resource>
32 namespace RMM_NAMESPACE {
78 static_assert(std::is_trivially_copyable<T>::value,
79 "device_uvector only supports types that are trivially copyable.");
92 RMM_EXEC_CHECK_DISABLE
95 RMM_EXEC_CHECK_DISABLE
130 : _storage{elements_to_bytes(size), stream, mr}
146 : _storage{other._storage, stream, mr}
160 assert(element_index < size());
161 return data() + element_index;
174 assert(element_index < size());
175 return data() + element_index;
219 element_index < size(),
"Attempt to access out of bounds element.",
rmm::out_of_range);
221 if constexpr (std::is_same<value_type, bool>::value) {
223 cudaMemsetAsync(element_ptr(element_index), value,
sizeof(value), stream.
value()));
227 if constexpr (std::is_fundamental<value_type>::value) {
229 set_element_to_zero_async(element_index, stream);
234 RMM_CUDA_TRY(cudaMemcpyAsync(
235 element_ptr(element_index), &value,
sizeof(value), cudaMemcpyDefault, stream.
value()));
240 void set_element_async(std::size_t, value_type
const&&,
cuda_stream_view) =
delete;
267 element_index < size(),
"Attempt to access out of bounds element.",
rmm::out_of_range);
269 cudaMemsetAsync(element_ptr(element_index), 0,
sizeof(
value_type), stream.
value()));
303 set_element_async(element_index, value, stream);
322 element_index < size(),
"Attempt to access out of bounds element.",
rmm::out_of_range);
324 RMM_CUDA_TRY(cudaMemcpyAsync(
325 &value, element_ptr(element_index),
sizeof(value), cudaMemcpyDefault, stream.
value()));
343 return element(0, stream);
359 return element(size() - 1, stream);
376 _storage.reserve(elements_to_bytes(new_capacity), stream);
397 _storage.resize(elements_to_bytes(new_size), stream);
422 [[nodiscard]] std::size_t
capacity() const noexcept
424 return bytes_to_elements(_storage.capacity());
510 [[nodiscard]] std::size_t
size() const noexcept {
return bytes_to_elements(_storage.size()); }
515 [[nodiscard]] std::int64_t
ssize() const noexcept
517 assert(size() <
static_cast<std::size_t
>(std::numeric_limits<int64_t>::max()) &&
518 "Size overflows signed integer");
519 return static_cast<int64_t
>(size());
525 [[nodiscard]]
bool is_empty() const noexcept {
return size() == 0; }
533 return _storage.memory_resource();
539 [[nodiscard]]
cuda_stream_view stream() const noexcept {
return _storage.stream(); }
552 void set_stream(
cuda_stream_view stream) noexcept { _storage.set_stream(stream); }
557 [[nodiscard]] std::size_t constexpr elements_to_bytes(std::size_t num_elements)
const noexcept
559 return num_elements *
sizeof(value_type);
562 [[nodiscard]] std::size_t constexpr bytes_to_elements(std::size_t num_bytes)
const noexcept
564 return num_bytes /
sizeof(value_type);
Strongly-typed non-owning wrapper for CUDA streams with default constructor.
Definition: cuda_stream_view.hpp:41
constexpr cudaStream_t value() const noexcept
Get the wrapped stream.
Definition: cuda_stream_view.hpp:75
void synchronize() const
Synchronize the viewed CUDA stream.
Definition: cuda_stream_view.hpp:108
void synchronize_no_throw() const noexcept
Synchronize the viewed CUDA stream. Does not throw if there is an error.
Definition: cuda_stream_view.hpp:115
RAII construct for device memory allocation.
Definition: device_buffer.hpp:84
An uninitialized vector of elements in device memory.
Definition: device_uvector.hpp:77
const_iterator cend() const noexcept
Returns a const_iterator to the element following the last element of the vector.
Definition: device_uvector.hpp:495
std::size_t capacity() const noexcept
Returns the number of elements that can be held in currently allocated storage.
Definition: device_uvector.hpp:422
void resize(std::size_t new_size, cuda_stream_view stream)
Resizes the vector to contain new_size elements.
Definition: device_uvector.hpp:395
value_type * pointer
The type of the pointer returned by data()
Definition: device_uvector.hpp:87
const_pointer element_ptr(std::size_t element_index) const noexcept
Returns pointer to the specified element.
Definition: device_uvector.hpp:172
bool is_empty() const noexcept
true if the vector contains no elements, i.e. size() == 0
Definition: device_uvector.hpp:525
const_pointer data() const noexcept
Returns const pointer to underlying device storage.
Definition: device_uvector.hpp:445
std::size_t size() const noexcept
The number of elements in the vector.
Definition: device_uvector.hpp:510
pointer data() noexcept
Returns pointer to underlying device storage.
Definition: device_uvector.hpp:435
void shrink_to_fit(cuda_stream_view stream)
Forces deallocation of unused device memory.
Definition: device_uvector.hpp:407
iterator end() noexcept
Returns an iterator to the element following the last element of the vector.
Definition: device_uvector.hpp:485
std::size_t size_type
The type used for the size of the vector.
Definition: device_uvector.hpp:83
pointer element_ptr(std::size_t element_index) noexcept
Returns pointer to the specified element.
Definition: device_uvector.hpp:158
std::int64_t ssize() const noexcept
The signed number of elements in the vector.
Definition: device_uvector.hpp:515
T value_type
T; stored value type.
Definition: device_uvector.hpp:82
const_iterator cbegin() const noexcept
Returns a const_iterator to the first element.
Definition: device_uvector.hpp:466
value_type back_element(cuda_stream_view stream) const
Returns the last element.
Definition: device_uvector.hpp:357
void set_element_to_zero_async(std::size_t element_index, cuda_stream_view stream)
Asynchronously sets the specified element to zero in device memory.
Definition: device_uvector.hpp:264
const_pointer const_iterator
The type of the const iterator returned by cbegin()
Definition: device_uvector.hpp:90
device_buffer release() noexcept
Release ownership of device memory storage.
Definition: device_uvector.hpp:414
RMM_EXEC_CHECK_DISABLE device_uvector(device_uvector &&) noexcept=default
Default move constructor.
void set_element_async(std::size_t element_index, value_type const &value, cuda_stream_view stream)
Performs an asynchronous copy of v to the specified element in device memory.
Definition: device_uvector.hpp:214
pointer iterator
The type of the iterator returned by begin()
Definition: device_uvector.hpp:89
value_type & reference
value_type&; reference type returned by operator[](size_type)
Definition: device_uvector.hpp:84
const_iterator end() const noexcept
Returns an iterator to the element following the last element of the vector.
Definition: device_uvector.hpp:505
void reserve(std::size_t new_capacity, cuda_stream_view stream)
Increases the capacity of the vector to new_capacity elements.
Definition: device_uvector.hpp:374
value_type element(std::size_t element_index, cuda_stream_view stream) const
Returns the specified element from device memory.
Definition: device_uvector.hpp:319
value_type front_element(cuda_stream_view stream) const
Returns the first element.
Definition: device_uvector.hpp:341
value_type const * const_pointer
The type of the pointer returned by data() const.
Definition: device_uvector.hpp:88
device_uvector(device_uvector const &other, cuda_stream_view stream, device_async_resource_ref mr=mr::get_current_device_resource_ref())
Construct a new device_uvector by deep copying the contents of another device_uvector.
Definition: device_uvector.hpp:143
value_type const & const_reference
Definition: device_uvector.hpp:86
void set_element(std::size_t element_index, T const &value, cuda_stream_view stream)
Performs a synchronous copy of v to the specified element in device memory.
Definition: device_uvector.hpp:301
const_iterator begin() const noexcept
Returns a const_iterator to the first element.
Definition: device_uvector.hpp:475
iterator begin() noexcept
Returns an iterator to the first element.
Definition: device_uvector.hpp:457
Exception thrown when attempting to access outside of a defined range.
Definition: error.hpp:110
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
Alias for a cuda::mr::async_resource_ref with the property cuda::mr::device_accessible.
Definition: resource_ref.hpp:41
device_async_resource_ref get_current_device_resource_ref()
Get the device_async_resource_ref for the current device.
Definition: per_device_resource.hpp:411
Management of per-device device_memory_resources.