dcosti (3p)

Name

dcosti - initialize the array WSAVE, which is used in COST.

Synopsis

SUBROUTINE DCOSTI(N, WSAVE)

INTEGER N
DOUBLE PRECISION WSAVE(*)

SUBROUTINE DCOSTI_64(N, WSAVE)

INTEGER*8 N
DOUBLE PRECISION WSAVE(*)




F95 INTERFACE
SUBROUTINE COSTI(N, WSAVE)

INTEGER :: N
REAL(8), DIMENSION(:) :: WSAVE

SUBROUTINE COSTI_64(N, WSAVE)

INTEGER(8) :: N
REAL(8), DIMENSION(:) :: WSAVE




C INTERFACE
#include <sunperf.h>

void dcosti(int n, double *wsave);

void dcosti_64(long n, double *wsave);

Description

Oracle Solaris Studio Performance Library                           dcosti(3P)



NAME
       dcosti - initialize the array WSAVE, which is used in COST.


SYNOPSIS
       SUBROUTINE DCOSTI(N, WSAVE)

       INTEGER N
       DOUBLE PRECISION WSAVE(*)

       SUBROUTINE DCOSTI_64(N, WSAVE)

       INTEGER*8 N
       DOUBLE PRECISION WSAVE(*)




   F95 INTERFACE
       SUBROUTINE COSTI(N, WSAVE)

       INTEGER :: N
       REAL(8), DIMENSION(:) :: WSAVE

       SUBROUTINE COSTI_64(N, WSAVE)

       INTEGER(8) :: N
       REAL(8), DIMENSION(:) :: WSAVE




   C INTERFACE
       #include <sunperf.h>

       void dcosti(int n, double *wsave);

       void dcosti_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 (3 *  N  +  15)  or  greater.
                 DCOSTI  is  called  once  to  initialize WSAVE before calling
                 DCOST and need not be called again between calls to DCOST  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.



                                  7 Nov 2015                        dcosti(3P)