carta
pddbsv(3)

pddbsv3

Solve a system of linear equations a(1:n, ja:ja+n-1) * x = b(ib:ib+n-1, 1:nrhs)

Purpose

PDDBSV solves a system of linear equations

where A(1:N, JA:JA+N-1) is an N-by-N real
banded diagonally dominant-like distributed
matrix with bandwidth BWL, BWU.

Gaussian elimination without pivoting
is used to factor a reordering
of the matrix into L U.

See PDDBTRF and PDDBTRS for details.

From scalapack-doc 1.5-11 in Debian 11 (Bullseye). Parsed by carta from the page's man source.