qttools.utils.inplace_utils

source module qttools.utils.inplace_utils

Functions

• compute_update_indices_sparse — Computes the indices for updating the system matrix.

• compute_update_indices_dense — Computes the indices for updating the system matrix.

source compute_update_indices_sparse(M: sparse.csr_matrix, U: sparse.csr_matrix, destination_indexes: NDArray = None) → NDArray

Computes the indices for updating the system matrix.

Parameters

• M : sparse.csr_matrix — The original system matrix.

• U : sparse.csr_matrix — The update matrix to be applied.

• destination_indexes : NDArray — The indices in the system matrix where the update should be applied.

Returns

• target_indices : NDArray — The indices in the flattened system matrix corresponding to the update positions.

Raises

• ValueError

source compute_update_indices_dense(M: sparse.csr_matrix, destination_indexes: NDArray = None) → NDArray

Computes the indices for updating the system matrix.

Parameters

• M : sparse.csr_matrix — The original system matrix.

• U : NDArray — The update matrix to be applied.

• destination_indexes : NDArray — The indices in the system matrix where the update should be applied.

Returns

• target_indices : NDArray — The indices in the flattened system matrix corresponding to the update positions.

Raises

• ValueError