dcnvcor2 - compute the convolution or correlation of real matrices
SUBROUTINE DCNVCOR2(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z, LDZ, WORKIN, LWORK) CHARACTER*1 CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY DOUBLE COMPLEX WORKIN(*) INTEGER MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK DOUBLE PRECISION X(LDX,*), Y(LDY,*), Z(LDZ,*) SUBROUTINE DCNVCOR2_64(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z, LDZ, WORKIN, LWORK) CHARACTER*1 CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY DOUBLE COMPLEX WORKIN(*) INTEGER*8 MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK DOUBLE PRECISION X(LDX,*), Y(LDY,*), Z(LDZ,*) F95 INTERFACE SUBROUTINE CNVCOR2(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z, LDZ, WORKIN, LWORK) CHARACTER(LEN=1) :: CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY COMPLEX(8), DIMENSION(:) :: WORKIN INTEGER :: MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK REAL(8), DIMENSION(:,:) :: X, Y, Z SUBROUTINE CNVCOR2_64(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z, LDZ, WORKIN, LWORK) CHARACTER(LEN=1) :: CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY COMPLEX(8), DIMENSION(:) :: WORKIN INTEGER(8) :: MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK REAL(8), DIMENSION(:,:) :: X, Y, Z C INTERFACE #include <sunperf.h> void dcnvcor2(char cnvcor, char method, char transx, char scratchx, char transy, char scratchy, int mx, int nx, double *x, int ldx, int my, int ny, int mpre, int npre, double *y, int ldy, int mz, int nz, double *z, int ldz, doublecomplex *workin, int lwork); void dcnvcor2_64(char cnvcor, char method, char transx, char scratchx, char transy, char scratchy, long mx, long nx, double *x, long ldx, long my, long ny, long mpre, long npre, double *y, long ldy, long mz, long nz, double *z, long ldz, doublecomplex *workin, long lwork);
Oracle Solaris Studio Performance Library dcnvcor2(3P)
NAME
dcnvcor2 - compute the convolution or correlation of real matrices
SYNOPSIS
SUBROUTINE DCNVCOR2(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY,
SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z,
LDZ, WORKIN, LWORK)
CHARACTER*1 CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY
DOUBLE COMPLEX WORKIN(*)
INTEGER MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK
DOUBLE PRECISION X(LDX,*), Y(LDY,*), Z(LDZ,*)
SUBROUTINE DCNVCOR2_64(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY,
SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY, MZ, NZ, Z,
LDZ, WORKIN, LWORK)
CHARACTER*1 CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY
DOUBLE COMPLEX WORKIN(*)
INTEGER*8 MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK
DOUBLE PRECISION X(LDX,*), Y(LDY,*), Z(LDZ,*)
F95 INTERFACE
SUBROUTINE CNVCOR2(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY,
SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY,
MZ, NZ, Z, LDZ, WORKIN, LWORK)
CHARACTER(LEN=1) :: CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY
COMPLEX(8), DIMENSION(:) :: WORKIN
INTEGER :: MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK
REAL(8), DIMENSION(:,:) :: X, Y, Z
SUBROUTINE CNVCOR2_64(CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY,
SCRATCHY, MX, NX, X, LDX, MY, NY, MPRE, NPRE, Y, LDY,
MZ, NZ, Z, LDZ, WORKIN, LWORK)
CHARACTER(LEN=1) :: CNVCOR, METHOD, TRANSX, SCRATCHX, TRANSY, SCRATCHY
COMPLEX(8), DIMENSION(:) :: WORKIN
INTEGER(8) :: MX, NX, LDX, MY, NY, MPRE, NPRE, LDY, MZ, NZ, LDZ, LWORK
REAL(8), DIMENSION(:,:) :: X, Y, Z
C INTERFACE
#include <sunperf.h>
void dcnvcor2(char cnvcor, char method, char transx, char scratchx,
char transy, char scratchy, int mx, int nx, double *x, int
ldx, int my, int ny, int mpre, int npre, double *y, int ldy,
int mz, int nz, double *z, int ldz, doublecomplex *workin,
int lwork);
void dcnvcor2_64(char cnvcor, char method, char transx, char scratchx,
char transy, char scratchy, long mx, long nx, double *x, long
ldx, long my, long ny, long mpre, long npre, double *y, long
ldy, long mz, long nz, double *z, long ldz, doublecomplex
*workin, long lwork);
PURPOSE
dcnvcor2 computes the convolution or correlation of real matrices.
ARGUMENTS
CNVCOR (input)
'V' or 'v' to compute convolution, 'R' or 'r' to compute cor-
relation.
METHOD (input)
'T' or 't' if the Fourier transform method is to be used, 'D'
or 'd' to compute directly from the definition.
TRANSX (input)
'N' or 'n' if X is the filter matrix, 'T' or 't' if trans-
pose(X) is the filter matrix.
SCRATCHX (input)
'N' or 'n' if X must be preserved, 'S' or 's' if X can be
used as scratch space. The contents of X are undefined after
returning from a call in which X is allowed to be used for
scratch.
TRANSY (input)
'N' or 'n' if Y is the input matrix, 'T' or 't' if trans-
pose(Y) is the input matrix.
SCRATCHY (input)
'N' or 'n' if Y must be preserved, 'S' or 's' if Y can be
used as scratch space. The contents of Y are undefined after
returning from a call in which Y is allowed to be used for
scratch.
MX (input)
Number of rows in the filter matrix. MX >= 0.
NX (input)
Number of columns in the filter matrix. NX >= 0.
X (input)
dimension(LDX,NX)
On entry, the filter matrix. Unchanged on exit if SCRATCHX
is 'N' or 'n', undefined on exit if SCRATCHX is 'S' or 's'.
LDX (input)
Leading dimension of the array that contains the filter
matrix.
MY (input)
Number of rows in the input matrix. MY >= 0.
NY (input)
Number of columns in the input matrix. NY >= 0.
MPRE (input)
Number of implicit zeros to prepend to each row of the input
matrix. MPRE >= 0.
NPRE (input)
Number of implicit zeros to prepend to each column of the
input matrix. NPRE >= 0.
Y (input)
dimension(LDY,*)
Input matrix. Unchanged on exit if SCRATCHY is 'N' or 'n',
undefined on exit if SCRATCHY is 'S' or 's'.
LDY (input)
Leading dimension of the array that contains the input
matrix.
MZ (input)
Number of rows in the output matrix. MZ >= 0. DCNVCOR2 will
return immediately if MZ = 0.
NZ (input)
Number of columns in the output matrix. NZ >= 0. DCNVCOR2
will return immediately if NZ = 0.
Z (output)
dimension(LDZ,*)
Result matrix.
LDZ (input)
Leading dimension of the array that contains the result
matrix. LDZ >= MAX(1,MZ).
WORKIN (input/output)
(input/scratch) dimension(LWORK)
On entry for the first call to DCNVCOR2, WORKIN(1) must con-
tain 0.0. After the first call, WORKIN(1) must be set to 0.0
iff WORKIN has been altered since the last call to this sub-
routine or if the sizes of the arrays have changed.
LWORK (input)
Length of the work vector. If the FFT is to be used then for
best performance LWORK should be at least 30 words longer
than the amount of memory needed to hold the trig tables. If
the FFT is not used, the value of LWORK is unimportant.
7 Nov 2015 dcnvcor2(3P)