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__(*args, **kwargs)¶: Initialize self. See help(type(self)) for accurate signature.

Methods

`__init__`(args, *kwargs)	Initialize self.
`equals`(self, Buffer other)	Determine if two buffers contain exactly the same data.
`hex`(self)	Compute hexadecimal representation of the buffer.
`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_cpu`	Whether the buffer is CPU-accessible.
`is_mutable`	Whether the buffer is mutable.
`parent`
`size`

address¶

The buffer’s address, as an integer.

The returned address may point to CPU or device memory. Use is_cpu() to disambiguate.

equals(self, Buffer other)¶

Determine if two buffers contain exactly the same data.

hex(self)¶

Compute hexadecimal representation of the buffer.

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.