DPRWVR(3)

SYNOPSIS
SUBROUTINE DPRWVR (KEY, IPAGE, LPG, SX, IX)

NAME
dprwvr - Subsidiary to DSPLP

LIBRARY
SLATEC

TYPE
DOUBLE PRECISION (PRWVIR-S, DPRWVR-D)

AUTHOR
Hanson, R. J., (SNLA) Wisniewski, J. A., (SNLA)

DESCRIPTION
DPRWVR LIMITS THE TYPE OF STORAGE TO A SEQUENTIAL SPARSE MATRIX STORAGE SCHEME. THE PAGE STORAGE IS ON RANDOM ACCESS DISK. DPRWVR IS PART OF THE SPARSE LP PACKAGE, DSPLP. KEY IS A FLAG WHICH INDICATES WHETHER A READ OR WRITE OPERATION IS TO BE PERFORMED. A VALUE OF KEY=1 INDICATES A READ. A VALUE OF KEY=2 INDICATES A WRITE. IPAGE IS THE PAGE OF MATRIX MN WE ARE ACCESSING. LPG IS THE LENGTH OF THE PAGE. SX(*),IX(*) IS THE MATRIX DATA. THIS SUBROUTINE IS A MODIFICATION OF THE SUBROUTINE LRWVIR, SANDIA LABS. REPT. SAND78-0785. MODIFICATIONS BY K.L. HIEBERT AND R.J. HANSON

SEE ALSO
DSPLP

ROUTINES CALLED
DREADP, DWRITP, SOPENM

REVISION HISTORY (YYMMDD)
811215 DATE WRITTEN
891009 Removed unreferenced variables. (WRB)
891214 Prologue converted to Version 4.0 format. (BAB)
900328 Added TYPE section. (WRB)
910403 Updated AUTHOR and DESCRIPTION sections. (WRB)