 |
MFEM v4.7.0
Finite element discretization library
|
Loading...
Searching...
No Matches
|
MFEM v4.7.0
Finite element discretization library
|
Wrapper for syncing PETSc's vector memory. More...
#include <petsc.hpp>
Public Member Functions | |
| PetscMemory () | |
| void | SetHostValid () const |
| void | SetDeviceValid () const |
| void | SetHostInvalid () const |
| void | SetDeviceInvalid () const |
| bool | IsAliasForSync () const |
| void | MakeAliasForSync (const Memory< real_t > &base_, int offset_, int size_, bool usedev_) |
| void | MakeAliasForSync (Memory< real_t > &base_, int offset_, int size_, bool read_, bool write_, bool usedev_) |
| void | SyncBase () |
| void | SyncBaseAndReset () |
| bool | ReadRequested () const |
| bool | WriteRequested () const |
| bool | DeviceRequested () const |
| const real_t * | GetHostPointer () const |
| const real_t * | GetDevicePointer () const |
 Public Member Functions inherited from mfem::Memory< real_t > | |
| Memory () | |
| Memory (const Memory &orig)=default | |
| Copy constructor: default. | |
| Memory (Memory &&orig) | |
| Memory (int size) | |
| Allocate host memory for size entries. | |
| Memory (int size, MemoryType mt) | |
| Allocate memory for size entries with the given MemoryType mt. | |
| Memory (int size, MemoryType h_mt, MemoryType d_mt) | |
| Allocate memory for size entries with the given host MemoryType h_mt and device MemoryType d_mt. | |
| Memory (real_t *ptr, int size, bool own) | |
| Wrap an externally allocated host pointer, ptr with the current host memory type returned by MemoryManager::GetHostMemoryType(). | |
| Memory (real_t *ptr, int size, MemoryType mt, bool own) | |
| Wrap an externally allocated pointer, ptr, of the given MemoryType. | |
| Memory (const Memory &base, int offset, int size) | |
| Alias constructor. Create a Memory object that points inside the Memory object base. | |
| Memory & | operator= (const Memory &orig)=default |
| Copy-assignment operator: default. | |
| Memory & | operator= (Memory &&orig) |
| ~Memory ()=default | |
| Destructor: default. | |
| bool | OwnsHostPtr () const |
| Return true if the host pointer is owned. Ownership indicates whether the pointer will be deleted by the method Delete(). | |
| void | SetHostPtrOwner (bool own) const |
| Set/clear the ownership flag for the host pointer. Ownership indicates whether the pointer will be deleted by the method Delete(). | |
| bool | OwnsDevicePtr () const |
| Return true if the device pointer is owned. Ownership indicates whether the pointer will be deleted by the method Delete(). | |
| void | SetDevicePtrOwner (bool own) const |
| Set/clear the ownership flag for the device pointer. Ownership indicates whether the pointer will be deleted by the method Delete(). | |
| void | ClearOwnerFlags () const |
| Clear the ownership flags for the host and device pointers, as well as any internal data allocated by the Memory object. | |
| bool | UseDevice () const |
| Read the internal device flag. | |
| void | UseDevice (bool use_dev) const |
| Set the internal device flag. | |
| int | Capacity () const |
| Return the size of the allocated memory. | |
| void | Reset () |
| Reset the memory to be empty, ensuring that Delete() will be a no-op. | |
| void | Reset (MemoryType host_mt) |
| Reset the memory and set the host memory type. | |
| bool | Empty () const |
| Return true if the Memory object is empty, see Reset(). | |
| void | New (int size) |
| Allocate host memory for size entries with the current host memory type returned by MemoryManager::GetHostMemoryType(). | |
| void | New (int size, MemoryType mt) |
| Allocate memory for size entries with the given MemoryType. | |
| void | New (int size, MemoryType h_mt, MemoryType d_mt) |
| Allocate memory for size entries with the given host MemoryType h_mt and device MemoryType d_mt. | |
| void | Wrap (real_t *ptr, int size, bool own) |
| Wrap an externally allocated host pointer, ptr with the current host memory type returned by MemoryManager::GetHostMemoryType(). | |
| void | Wrap (real_t *ptr, int size, MemoryType mt, bool own) |
| Wrap an externally allocated pointer, ptr, of the given MemoryType. | |
| void | Wrap (real_t *h_ptr, real_t *d_ptr, int size, MemoryType h_mt, bool own, bool valid_host=false, bool valid_device=true) |
| void | MakeAlias (const Memory &base, int offset, int size) |
| Create a memory object that points inside the memory object base. | |
| void | SetDeviceMemoryType (MemoryType d_mt) |
| Set the device MemoryType to be used by the Memory object. | |
| void | Delete () |
| Delete the owned pointers and reset the Memory object. | |
| void | DeleteDevice (bool copy_to_host=true) |
| Delete the device pointer, if owned. If copy_to_host is true and the data is valid only on device, move it to host before deleting. Invalidates the device memory. | |
| real_t & | operator[] (int idx) |
| Array subscript operator for host memory. | |
| const real_t & | operator[] (int idx) const |
| Array subscript operator for host memory, const version. | |
| operator real_t * () | |
| Direct access to the host memory as T* (implicit conversion). | |
| operator const real_t * () const | |
| Direct access to the host memory as const T* (implicit conversion). | |
| operator U* () | |
| Direct access to the host memory via explicit typecast. | |
| operator const U * () const | |
| Direct access to the host memory via explicit typecast, const version. | |
| real_t * | ReadWrite (MemoryClass mc, int size) |
| Get read-write access to the memory with the given MemoryClass. | |
| const real_t * | Read (MemoryClass mc, int size) const |
| Get read-only access to the memory with the given MemoryClass. | |
| real_t * | Write (MemoryClass mc, int size) |
| Get write-only access to the memory with the given MemoryClass. | |
| void | Sync (const Memory &other) const |
| Copy the host/device pointer validity flags from other to *this. | |
| void | SyncAlias (const Memory &base, int alias_size) const |
| Update the alias Memory *this to match the memory location (all valid locations) of its base Memory, base. | |
| MemoryType | GetMemoryType () const |
| Return a MemoryType that is currently valid. If both the host and the device pointers are currently valid, then the device memory type is returned. | |
| MemoryType | GetHostMemoryType () const |
| Return the host MemoryType of the Memory object. | |
| MemoryType | GetDeviceMemoryType () const |
| Return the device MemoryType of the Memory object. If the device MemoryType is not set, return MemoryType::DEFAULT. | |
| bool | HostIsValid () const |
| Return true if host pointer is valid. | |
| bool | DeviceIsValid () const |
| Return true if device pointer is valid. | |
| void | CopyFrom (const Memory &src, int size) |
| Copy size entries from src to *this. | |
| void | CopyFromHost (const real_t *src, int size) |
| Copy size entries from the host pointer src to *this. | |
| void | CopyTo (Memory &dest, int size) const |
| Copy size entries from *this to dest. | |
| void | CopyToHost (real_t *dest, int size) const |
| Copy size entries from *this to the host pointer dest. | |
| void | PrintFlags () const |
| Print the internal flags. | |
| int | CompareHostAndDevice (int size) const |
| If both the host and the device data are valid, compare their contents. | |
Additional Inherited Members | |
| Protected Types inherited from mfem::Memory< real_t > | |
| enum | FlagMask |
| Protected Attributes inherited from mfem::Memory< real_t > | |
| real_t * | h_ptr |
| Pointer to host memory. Not owned. | |
| int | capacity |
| Size of the allocated memory. | |
| MemoryType | h_mt |
| Host memory type. | |
| unsigned | flags |
| Bit flags defined from the FlagMask enum. | |
| const mfem::real_t * mfem::PetscMemory::GetDevicePointer | ( | ) | const |
| const mfem::real_t * mfem::PetscMemory::GetHostPointer | ( | ) | const |
1.11.0