pyarrow.cuda.HostBuffer¶
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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.
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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)
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is_mutable
¶ Whether the buffer is mutable.
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parent
¶
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size
¶ The buffer size in bytes.
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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.
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to_pybytes
(self)¶ Return this buffer as a Python bytes object. Memory is copied.
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