expectation_get_info#

cuquantum.bindings.cutensornet.expectation_get_info( intptr_t handle, intptr_t tensor_network_expectation, int attribute, intptr_t attribute_value, size_t attribute_size, )[source]#

Retrieves an attribute related to computation of the requested tensor network state expectation value.

Parameters:

handle (intptr_t) – cuTensorNet library handle.
tensor_network_expectation (intptr_t) – Tensor network state expectation value representation.
attribute (ExpectationAttribute) – Information attribute.
attribute_value (intptr_t) – Pointer to the information attribute value (type-erased).
attribute_size (size_t) – The size of the information attribute value.

Note

To compute the attribute size, use the itemsize of the corresponding data type, which can be queried using get_expectation_attribute_dtype().