mpi4py.MPI.memory

class mpi4py.MPI.memory

Bases: object

Memory buffer

static __new__(cls, buf)

Parameters:

buf (Buffer) –

Return type:

memory

Methods Summary

allocate(nbytes[, clear])	Memory allocation
fromaddress(address, nbytes[, readonly])	Memory from address and size in bytes
frombuffer(obj[, readonly])	Memory from buffer-like object
release()	Release the underlying buffer exposed by the memory object
tobytes([order])	Return the data in the buffer as a byte string
toreadonly()	Return a readonly version of the memory object

Attributes Summary

address	Memory address
format	A string with the format of each element
itemsize	The size in bytes of each element
nbytes	Memory size (in bytes)
obj	The underlying object of the memory
readonly	Boolean indicating whether the memory is read-only

Methods Documentation

static allocate(nbytes, clear=False)

Memory allocation

Parameters:

• nbytes (int) –

• clear (bool) –

Return type:

memory

static fromaddress(address, nbytes, readonly=False)

Memory from address and size in bytes

Parameters:

• address (int) –

• nbytes (int) –

• readonly (bool) –

Return type:

memory

static frombuffer(obj, readonly=False)

Memory from buffer-like object

Parameters:

• obj (Buffer) –

• readonly (bool) –

Return type:

memory

release()

Release the underlying buffer exposed by the memory object

Return type:

None

tobytes(order=None)

Return the data in the buffer as a byte string

Parameters:

order (str | None) –

Return type:

bytes

toreadonly()

Return a readonly version of the memory object

Return type:

memory

Attributes Documentation

address

Memory address

format

A string with the format of each element

itemsize

The size in bytes of each element

nbytes

Memory size (in bytes)

obj

The underlying object of the memory

readonly

Boolean indicating whether the memory is read-only