Input

• x - Array handle for an S3L parallel array. For calls to S3L_2_norm (multiple-instance routine), x must represent a parallel array of rank >= 2, with at least one nonlocal instance axis. The variable x contains one or more instances of the vector x whose 2-norm will be computed.

• For calls to S3L_gbl_2_norm (single-instance routine), x must represent a parallel array of rank >= 1, with any instance axes declared to have length 1.

• x_vector_axis - Scalar variable. Identifies the axis of x along which the vectors lie.