pyarrow.cuda.HostBuffer

class pyarrow.cuda.HostBuffer

Bases: pyarrow.lib.Buffer

Device-accessible CPU memory created using cudaHostAlloc.

To create a HostBuffer instance, use

cuda.new_host_buffer(<nbytes>)

__init__()

Initialize self. See help(type(self)) for accurate signature.

Methods

equals(self, Buffer other)	Determine if two buffers contain exactly the same data.
slice(self[, offset, length])	Slice this buffer.
to_pybytes(self)	Return this buffer as a Python bytes object.

Attributes

address	The buffer’s address, as an integer.
is_mutable	Whether the buffer is mutable.
parent
size	The buffer size in bytes.

address

The buffer’s address, as an integer.

equals(self, Buffer other)

Determine if two buffers contain exactly the same data.

Parameters:other (Buffer) – Returns:are_equal (True if buffer contents and size are equal)

is_mutable

Whether the buffer is mutable.

parent

size

The buffer size in bytes.

slice(self, offset=0, length=None)

Slice this buffer. Memory is not copied.

You can also use the Python slice notation buffer[start:stop].

Parameters:

• offset (int, default 0) – Offset from start of buffer to slice
• length (int, default None) – Length of slice (default is until end of Buffer starting from offset)

Returns:

sliced (Buffer) – A logical view over this buffer.

to_pybytes(self)

Return this buffer as a Python bytes object. Memory is copied.