cfft3i - initialize the array WSAVE, which is used in both CFFT3F and CFFT3B.
SUBROUTINE CFFT3I(M, N, K, WORK) INTEGER M, N, K REAL WORK(*) SUBROUTINE CFFT3I_64(M, N, K, WORK) INTEGER*8 M, N, K REAL WORK(*) F95 INTERFACE SUBROUTINE CFFT3I(M, N, K, WORK) INTEGER :: M, N, K REAL, DIMENSION(:) :: WORK SUBROUTINE CFFT3I_64(M, N, K, WORK) INTEGER(8) :: M, N, K REAL, DIMENSION(:) :: WORK C INTERFACE #include <sunperf.h> void cfft3i(int m, int n, int k, float *work); void cfft3i_64(long m, long n, long k, float *work);
Oracle Solaris Studio Performance Library cfft3i(3P) NAME cfft3i - initialize the array WSAVE, which is used in both CFFT3F and CFFT3B. SYNOPSIS SUBROUTINE CFFT3I(M, N, K, WORK) INTEGER M, N, K REAL WORK(*) SUBROUTINE CFFT3I_64(M, N, K, WORK) INTEGER*8 M, N, K REAL WORK(*) F95 INTERFACE SUBROUTINE CFFT3I(M, N, K, WORK) INTEGER :: M, N, K REAL, DIMENSION(:) :: WORK SUBROUTINE CFFT3I_64(M, N, K, WORK) INTEGER(8) :: M, N, K REAL, DIMENSION(:) :: WORK C INTERFACE #include <sunperf.h> void cfft3i(int m, int n, int k, float *work); void cfft3i_64(long m, long n, long k, float *work); ARGUMENTS M (input) Number of rows to be transformed. M >= 0. N (input) Number of columns to be transformed. N >= 0. K (input) Number of planes to be transformed. K >= 0. WORK (input/output) On entry, an array of dimension (4*(M + N + K) + 45) or greater. CFFT3I needs to be called only once to initialize array WORK before calling CFFT3F and/or CFFT3B if M, N, K and WORK remain unchanged between these calls. Thus, subsequent transforms or inverse transforms of same size can be obtained faster than the first since they do not require initializa- tion of the workspace. 7 Nov 2015 cfft3i(3P)