Cholesky factorization result

Stores the upper-triangular Cholesky factor R of a symmetric positive-definite adgeMatrix, as returned by chol_factor. When the factor is resident on a GPU backend the host-side @factor slot may be an empty zero-row matrix; use chol_solve rather than accessing slots directly.

Slots

factor

Numeric matrix; the upper-triangular factor R such that t(R) %*% R equals the source matrix. May be matrix(numeric(0), 0, 0) when the factor lives only on the device.

factor_obj

Either an adgeMatrix holding the GPU-resident factor, or NULL for CPU-only factors.

source_id

Character string; the object_id of the source adgeMatrix.

precision

Character string; "strict" or "fast".

backend

Character string; the backend that computed the factorization.

See also

chol_factor, chol_solve, chol_logdet