thrust::device_malloc_allocator
Defined in thrust/device_malloc_allocator.h
-
template<typename T>
class device_malloc_allocator device_malloc_allocator
is a device memory allocator that employs thedevice_malloc
function for allocation.device_malloc_allocator
is deprecated in favor ofthrust::mr
memory resource-based allocators.See also
device_malloc
See also
See also
Public Types
-
using pointer = device_ptr<T>
Pointer to allocation,
device_ptr<T>
.
-
using const_pointer = device_ptr<const T>
const
pointer to allocation,device_ptr<const T>
.
-
using reference = device_reference<T>
Reference to allocated element,
device_reference<T>
.
-
using const_reference = device_reference<const T>
const
reference to allocated element,device_reference<const T>
.
Public Functions
-
inline device_malloc_allocator()
No-argument constructor has no effect.
-
inline ~device_malloc_allocator()
No-argument destructor has no effect.
-
inline device_malloc_allocator(device_malloc_allocator const&)
Copy constructor has no effect.
-
template<typename U>
inline device_malloc_allocator(device_malloc_allocator<U> const&) Constructor from other
device_malloc_allocator
has no effect.
-
device_malloc_allocator &operator=(const device_malloc_allocator&) = default
-
inline const_pointer address(const_reference r)
Returns the address an allocated object.
- Returns
&r
.
-
inline pointer allocate(size_type cnt, const_pointer = const_pointer(static_cast<T*>(0)))
Allocates storage for
cnt
objects.Note
Memory allocated by this function must be deallocated with
deallocate
.- Parameters
cnt – The number of objects to allocate.
- Returns
A
pointer
to uninitialized storage forcnt
objects.
-
inline void deallocate(pointer p, size_type cnt) noexcept
Deallocates storage for objects allocated with
allocate
.Note
Memory deallocated by this function must previously have been allocated with
allocate
.- Parameters
p – A
pointer
to the storage to deallocate.cnt – The size of the previous allocation.
-
inline size_type max_size() const
Returns the largest value
n
for whichallocate(n)
might succeed.- Returns
The largest value
n
for whichallocate(n)
might succeed.
-
inline bool operator==(device_malloc_allocator const&) const
Compares against another
device_malloc_allocator
for equality.- Returns
true
-
inline bool operator!=(device_malloc_allocator const &a) const
Compares against another
device_malloc_allocator
for inequality.- Returns
false
-
template<typename U>
struct rebind The
rebind
metafunction provides the type of adevice_malloc_allocator
instantiated with another type.- Template Parameters
U – The other type to use for instantiation.
Public Types
-
using other = device_malloc_allocator<U>
The alias
other
gives the type of the rebounddevice_malloc_allocator
.
-
using pointer = device_ptr<T>