expectation_prepare#

cuquantum.bindings.cudensitymat.expectation_prepare( intptr_t handle, intptr_t expectation, intptr_t state, int compute_type, size_t workspace_size_limit, intptr_t workspace, intptr_t stream, )[source]#

Prepares the expectation value object for computation.

Parameters:

handle (intptr_t) – Library handle.
expectation (intptr_t) – Expectation value object.
state (intptr_t) – Representative quantum state (or a batch of quantum states).
compute_type (ComputeType) – Desired compute type.
workspace_size_limit (size_t) – Workspace buffer size limit (bytes).
workspace (intptr_t) – Empty workspace descriptor on entrance. The workspace size required for the computation will be set on exit.
stream (intptr_t) – CUDA stream.