A Concrete Class for Dynamic Memory Management This is the simplest dynamic memory management class derived from Arena. Makes calls to std::malloc and std::free. More...
#include <AMReX_BArena.H>
Public Member Functions | |
void * | alloc (std::size_t sz) final |
Allocates a dynamic memory arena of size sz. Returns a pointer to this memory. More... | |
void | free (void *pt) final |
Deletes the arena pointed to by pt. More... | |
bool | isDeviceAccessible () const final |
bool | isHostAccessible () const final |
bool | isManaged () const final |
bool | isDevice () const final |
bool | isPinned () const final |
Public Member Functions inherited from amrex::Arena | |
virtual | ~Arena ()=default |
Arena () noexcept=default | |
Arena (const Arena &rhs)=delete | |
Arena (Arena &&rhs)=delete | |
Arena & | operator= (const Arena &rhs)=delete |
Arena & | operator= (Arena &&rhs)=delete |
virtual std::pair< void *, std::size_t > | alloc_in_place (void *, std::size_t, std::size_t szmax) |
virtual void * | shrink_in_place (void *, std::size_t sz) |
virtual std::size_t | freeUnused () |
Free unused memory back to the system. Return value is the amount memory freed. More... | |
virtual bool | hasFreeDeviceMemory (std::size_t sz) |
Does the device have enough free memory for allocating this much memory? For CPU builds, this always return true. This is not a const function because it may attempt to release memory back to the system. More... | |
void | registerForProfiling (const std::string &memory_name) |
Add this Arena to the list of Arenas that are profiled by TinyProfiler. More... | |
void | deregisterFromProfiling () |
Remove this Arena from the list of Arenas that are profiled by TinyProfiler. This is equivalent to destructing and re-constructing the Arena. More... | |
virtual bool | isStreamOrderedArena () const |
Is this GPU stream ordered memory allocator? More... | |
const ArenaInfo & | arenaInfo () const |
Return the ArenaInfo object for querying. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from amrex::Arena | |
static std::size_t | align (std::size_t sz) |
Given a minimum required arena size of sz bytes, this returns the next largest arena size that will align to align_size bytes. More... | |
static void | Initialize () |
static void | PrintUsage () |
static void | PrintUsageToFiles (std::string const &filename, std::string const &message) |
static void | Finalize () |
Static Public Attributes inherited from amrex::Arena | |
static const std::size_t | align_size = 16 |
Protected Member Functions inherited from amrex::Arena | |
virtual std::size_t | freeUnused_protected () |
void * | allocate_system (std::size_t nbytes) |
void | deallocate_system (void *p, std::size_t nbytes) |
Protected Attributes inherited from amrex::Arena | |
ArenaInfo | arena_info |
struct amrex::Arena::ArenaProfiler | m_profiler |
A Concrete Class for Dynamic Memory Management This is the simplest dynamic memory management class derived from Arena. Makes calls to std::malloc and std::free.
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finalvirtual |
Allocates a dynamic memory arena of size sz. Returns a pointer to this memory.
Implements amrex::Arena.
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finalvirtual |
Deletes the arena pointed to by pt.
Implements amrex::Arena.
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finalvirtual |
Reimplemented from amrex::Arena.
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finalvirtual |
Reimplemented from amrex::Arena.
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finalvirtual |
Reimplemented from amrex::Arena.
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finalvirtual |
Reimplemented from amrex::Arena.
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finalvirtual |
Reimplemented from amrex::Arena.