dpnp.tensor.empty

dpnp.tensor.empty(shape, *, dtype=None, order='C', device=None, usm_type='device', sycl_queue=None)[source]

Creates dpnp.tensor.usm_ndarray from uninitialized USM allocation.

Parameters:

  • shape ({int, tuple of ints}) -- Dimensions of the array to be created.

  • dtype ({None, dtype}, optional) --

    data type of the array. Can be typestring, a numpy.dtype object, numpy char string, or a NumPy scalar type. The None value creates an array of floating point data type.

    Default: None.

  • order ({"C", "F"}, optional) --

    memory layout for the array.

    Default: "C".

  • device ({None, object}, optional) --

    array API concept of device where the output array is created. device can be None, a oneAPI filter selector string, an instance of dpctl.SyclDevice corresponding to a non-partitioned SYCL device, an instance of dpctl.SyclQueue, or a dpnp.tensor.Device object returned by dpnp.tensor.usm_ndarray.device.

    Default: None.

  • usm_type ({None, "device", "shared", "host"}, optional) --

    The type of SYCL USM allocation for the output array.

    Default: "device".

  • sycl_queue ({None, dpctl.SyclQueue}, optional) --

    The SYCL queue to use for output array allocation and copying. sycl_queue and device are complementary arguments, i.e. use one or another. If both are specified, a TypeError is raised unless both imply the same underlying SYCL queue to be used. If both are None, a cached queue targeting default-selected device is used for allocation and population.

    Default: None.

Returns:

out -- Created empty array.

Return type:

usm_ndarray