cuquantum.custatevec.abs2sum_array¶

cuquantum.custatevec.abs2sum_array(intptr_t handle, intptr_t sv, int sv_data_type, uint32_t n_index_bits, intptr_t abs2sum, bit_ordering, uint32_t bit_ordering_len, mask_bit_string, mask_ordering, uint32_t mask_len)[source]¶

Calculate abs2sum array for a given set of index bits.

Parameters

handle (intptr_t) – the handle to the cuStateVec library.
sv (intptr_t) – state vector.
sv_data_type (int) – data type of state vector.
n_index_bits (uint32_t) – the number of index bits.
abs2sum (intptr_t) – pointer to a host or device array of sums of squared absolute values.
bit_ordering (object) –
pointer to a host array of index bit ordering. It can be:
- an int as the pointer address to the array, or
- a Python sequence of int32_t.
bit_ordering_len (uint32_t) – the length of bit_ordering.
mask_bit_string (object) –
pointer to a host array for a bit string to specify mask. It can be:
- an int as the pointer address to the array, or
- a Python sequence of int32_t.
mask_ordering (object) –
pointer to a host array for the mask ordering. It can be:
- an int as the pointer address to the array, or
- a Python sequence of int32_t.
mask_len (uint32_t) – the length of mask.