cuquantum.custatevec.sv_swap_worker_create¶

cuquantum.custatevec.sv_swap_worker_create(intptr_t handle, intptr_t communicator, intptr_t org_sub_sv, int32_t org_sub_sv_ind_ex, intptr_t org_event, int sv_data_type, intptr_t stream) → tuple[source]¶

Create state vector swap worker.

Parameters

handle (intptr_t) – the handle to cuStateVec library.
communicator (intptr_t) – a pointer to the MPI communicator.
org_sub_sv (intptr_t) – a pointer to a sub state vector.
org_sub_sv_ind_ex (int32_t) – the index of the sub state vector specified by the org_sub_sv argument.
org_event (intptr_t) – the event for synchronization with the peer worker.
sv_data_type (int) – data type used by the state vector representation.
stream (intptr_t) – a stream that is used to locally execute kernels during data transfers.

Returns

intptr_t: state vector swap worker.
size_t: the size of the extra workspace needed.
size_t: the minimum-required size of the transfer workspace.

Return type

A 3-tuple containing