vdcosti(3P) Sun Performance Library vdcosti(3P)NAMEvdcosti - initialize the array WSAVE, which is used in VCOST.
SYNOPSIS
SUBROUTINE VDCOSTI(N, WSAVE)
INTEGER N
DOUBLE PRECISION WSAVE(*)
SUBROUTINE VDCOSTI_64(N, WSAVE)
INTEGER*8 N
DOUBLE PRECISION WSAVE(*)
F95 INTERFACE
SUBROUTINE VCOSTI(N, WSAVE)
INTEGER :: N
REAL(8), DIMENSION(:) :: WSAVE
SUBROUTINE VCOSTI_64(N, WSAVE)
INTEGER(8) :: N
REAL(8), DIMENSION(:) :: WSAVE
C INTERFACE
#include <sunperf.h>
void vdcosti(int n, double *wsave);
void vdcosti_64(long n, double *wsave);
ARGUMENTS
N (input) Length of the sequence to be transformed. The method is most
efficient when N - 1 is a product of small primes. N >= 2.
WSAVE (input/output)
On entry, an array of dimension (2 * N + 15) or greater.
VDCOSTI is called once to initialize WSAVE before calling
VDCOST and need not be called again between calls to VDCOST
if N and WSAVE remain unchanged. Thus, subsequent transforms
of same size can be obtained faster than the first since they
do not require initialization of the workspace.
6 Mar 2009 vdcosti(3P)
