costi (3p)

Name

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

Synopsis

SUBROUTINE COSTI(N, WSAVE)

INTEGER N
REAL WSAVE(*)

SUBROUTINE COSTI_64(N, WSAVE)

INTEGER*8 N
REAL WSAVE(*)




F95 INTERFACE
SUBROUTINE COSTI(N, WSAVE)

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

SUBROUTINE COSTI_64(N, WSAVE)

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




C INTERFACE
#include <sunperf.h>

void costi(int n, float *wsave);

void costi_64(long n, float *wsave);

Description

Oracle Solaris Studio Performance Library                            costi(3P)



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


SYNOPSIS
       SUBROUTINE COSTI(N, WSAVE)

       INTEGER N
       REAL WSAVE(*)

       SUBROUTINE COSTI_64(N, WSAVE)

       INTEGER*8 N
       REAL WSAVE(*)




   F95 INTERFACE
       SUBROUTINE COSTI(N, WSAVE)

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

       SUBROUTINE COSTI_64(N, WSAVE)

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




   C INTERFACE
       #include <sunperf.h>

       void costi(int n, float *wsave);

       void costi_64(long n, float *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.
                 COSTI  is called once to initialize WSAVE before calling COST
                 and need not be called again between calls to COST 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                         costi(3P)