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PCGBTRS

solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)

TRANS, N, BWL, BWU, NRHS, A, JA, DESCA, IPIV, B, IB, DESCB, AF, LAF, WORK, LWORK, INFO )

CHARACTER TRANS INTEGER BWU, BWL, IB, INFO, JA, LAF, LWORK, N, NRHS INTEGER DESCA( * ), DESCB( * ), IPIV(*) COMPLEX A( * ), AF( * ), B( * ), WORK( * )

PCGBTRS solves a system of linear equations
or
A(1:N, JA:JA+N-1)' * X = B(IB:IB+N-1, 1:NRHS)

where A(1:N, JA:JA+N-1) is the matrix used to produce the factors stored in A(1:N,JA:JA+N-1) and AF by PCGBTRF.
A(1:N, JA:JA+N-1) is an N-by-N complex
banded distributed
matrix with bandwidth BWL, BWU.

Routine PCGBTRF MUST be called first.