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-rw-r--r--SRC/zgsvj0.f110
1 files changed, 55 insertions, 55 deletions
diff --git a/SRC/zgsvj0.f b/SRC/zgsvj0.f
index f1c607d1..a9e663d4 100644
--- a/SRC/zgsvj0.f
+++ b/SRC/zgsvj0.f
@@ -254,20 +254,20 @@
* ..
* ..
* .. Intrinsic Functions ..
- INTRINSIC ABS, AMAX1, DCONJG, DBLE, MIN0, MAX0, SIGN, SQRT
+ INTRINSIC ABS, DMAX1, DCONJG, DFLOAT, MIN0, DSIGN, DSQRT
* ..
* .. External Functions ..
DOUBLE PRECISION DZNRM2
COMPLEX*16 ZDOTC
- INTEGER IZAMAX
+ INTEGER IDAMAX
LOGICAL LSAME
- EXTERNAL IZAMAX, LSAME, ZDOTC, DZNRM2
+ EXTERNAL IDAMAX, LSAME, ZDOTC, DZNRM2
* ..
* ..
* .. External Subroutines ..
* ..
* from BLAS
- EXTERNAL ZCOPY, ZDROT, ZDSCAL, ZSWAP
+ EXTERNAL ZCOPY, ZROT, ZSWAP
* from LAPACK
EXTERNAL ZLASCL, ZLASSQ, XERBLA
* ..
@@ -313,13 +313,13 @@
END IF
RSVEC = RSVEC .OR. APPLV
- ROOTEPS = SQRT( EPS )
- ROOTSFMIN = SQRT( SFMIN )
+ ROOTEPS = DSQRT( EPS )
+ ROOTSFMIN = DSQRT( SFMIN )
SMALL = SFMIN / EPS
BIG = ONE / SFMIN
ROOTBIG = ONE / ROOTSFMIN
BIGTHETA = ONE / ROOTEPS
- ROOTTOL = SQRT( TOL )
+ ROOTTOL = DSQRT( TOL )
*
* .. Row-cyclic Jacobi SVD algorithm with column pivoting ..
*
@@ -391,7 +391,7 @@
*
* .. de Rijk's pivoting
*
- q = IZAMAX( N-p+1, SVA( p ), 1 ) + p - 1
+ q = IDAMAX( N-p+1, SVA( p ), 1 ) + p - 1
IF( p.NE.q ) THEN
CALL ZSWAP( M, A( 1, p ), 1, A( 1, q ), 1 )
IF( RSVEC )CALL ZSWAP( MVL, V( 1, p ), 1,
@@ -425,7 +425,7 @@
TEMP1 = ZERO
AAPP = ONE
CALL ZLASSQ( M, A( 1, p ), 1, TEMP1, AAPP )
- SVA( p ) = TEMP1*SQRT( AAPP )
+ SVA( p ) = TEMP1*DSQRT( AAPP )
END IF
AAPP = SVA( p )
ELSE
@@ -475,7 +475,7 @@
OMPQ = AAPQ / ABS(AAPQ)
* AAPQ = AAPQ * DCONJG( CWORK(p) ) * CWORK(q)
AAPQ1 = -ABS(AAPQ)
- MXAAPQ = AMAX1( MXAAPQ, -AAPQ1 )
+ MXAAPQ = DMAX1( MXAAPQ, -AAPQ1 )
*
* TO rotate or NOT to rotate, THAT is the question ...
*
@@ -501,39 +501,39 @@
T = HALF / THETA
CS = ONE
- CALL CROT( M, A(1,p), 1, A(1,q), 1,
+ CALL ZROT( M, A(1,p), 1, A(1,q), 1,
$ CS, DCONJG(OMPQ)*T )
IF ( RSVEC ) THEN
- CALL CROT( MVL, V(1,p), 1,
+ CALL ZROT( MVL, V(1,p), 1,
$ V(1,q), 1, CS, DCONJG(OMPQ)*T )
END IF
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE+T*APOAQ*AAPQ1 ) )
- AAPP = AAPP*SQRT( AMAX1( ZERO,
+ AAPP = AAPP*DSQRT( DMAX1( ZERO,
$ ONE-T*AQOAP*AAPQ1 ) )
- MXSINJ = AMAX1( MXSINJ, ABS( T ) )
+ MXSINJ = DMAX1( MXSINJ, ABS( T ) )
*
ELSE
*
* .. choose correct signum for THETA and rotate
*
- THSIGN = -SIGN( ONE, AAPQ1 )
+ THSIGN = -DSIGN( ONE, AAPQ1 )
T = ONE / ( THETA+THSIGN*
- $ SQRT( ONE+THETA*THETA ) )
- CS = SQRT( ONE / ( ONE+T*T ) )
+ $ DSQRT( ONE+THETA*THETA ) )
+ CS = DSQRT( ONE / ( ONE+T*T ) )
SN = T*CS
*
- MXSINJ = AMAX1( MXSINJ, ABS( SN ) )
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ MXSINJ = DMAX1( MXSINJ, ABS( SN ) )
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE+T*APOAQ*AAPQ1 ) )
- AAPP = AAPP*SQRT( AMAX1( ZERO,
+ AAPP = AAPP*DSQRT( DMAX1( ZERO,
$ ONE-T*AQOAP*AAPQ1 ) )
*
- CALL CROT( M, A(1,p), 1, A(1,q), 1,
+ CALL ZROT( M, A(1,p), 1, A(1,q), 1,
$ CS, DCONJG(OMPQ)*SN )
IF ( RSVEC ) THEN
- CALL CROT( MVL, V(1,p), 1,
+ CALL ZROT( MVL, V(1,p), 1,
$ V(1,q), 1, CS, DCONJG(OMPQ)*SN )
END IF
END IF
@@ -548,13 +548,13 @@
$ IERR )
CALL ZLASCL( 'G', 0, 0, AAQQ, ONE, M,
$ 1, A( 1, q ), LDA, IERR )
- CALL CAXPY( M, -AAPQ, WORK, 1,
+ CALL ZAXPY( M, -AAPQ, WORK, 1,
$ A( 1, q ), 1 )
CALL ZLASCL( 'G', 0, 0, ONE, AAQQ, M,
$ 1, A( 1, q ), LDA, IERR )
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE-AAPQ1*AAPQ1 ) )
- MXSINJ = AMAX1( MXSINJ, SFMIN )
+ MXSINJ = DMAX1( MXSINJ, SFMIN )
END IF
* END IF ROTOK THEN ... ELSE
*
@@ -571,7 +571,7 @@
AAQQ = ONE
CALL ZLASSQ( M, A( 1, q ), 1, T,
$ AAQQ )
- SVA( q ) = T*SQRT( AAQQ )
+ SVA( q ) = T*DSQRT( AAQQ )
END IF
END IF
IF( ( AAPP / AAPP0 ).LE.ROOTEPS ) THEN
@@ -583,7 +583,7 @@
AAPP = ONE
CALL ZLASSQ( M, A( 1, p ), 1, T,
$ AAPP )
- AAPP = T*SQRT( AAPP )
+ AAPP = T*DSQRT( AAPP )
END IF
SVA( p ) = AAPP
END IF
@@ -696,7 +696,7 @@
OMPQ = AAPQ / ABS(AAPQ)
* AAPQ = AAPQ * DCONJG(CWORK(p))*CWORK(q)
AAPQ1 = -ABS(AAPQ)
- MXAAPQ = AMAX1( MXAAPQ, -AAPQ1 )
+ MXAAPQ = DMAX1( MXAAPQ, -AAPQ1 )
*
* TO rotate or NOT to rotate, THAT is the question ...
*
@@ -716,37 +716,37 @@
IF( ABS( THETA ).GT.BIGTHETA ) THEN
T = HALF / THETA
CS = ONE
- CALL CROT( M, A(1,p), 1, A(1,q), 1,
+ CALL ZROT( M, A(1,p), 1, A(1,q), 1,
$ CS, DCONJG(OMPQ)*T )
IF( RSVEC ) THEN
- CALL CROT( MVL, V(1,p), 1,
+ CALL ZROT( MVL, V(1,p), 1,
$ V(1,q), 1, CS, DCONJG(OMPQ)*T )
END IF
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE+T*APOAQ*AAPQ1 ) )
- AAPP = AAPP*SQRT( AMAX1( ZERO,
+ AAPP = AAPP*DSQRT( DMAX1( ZERO,
$ ONE-T*AQOAP*AAPQ1 ) )
- MXSINJ = AMAX1( MXSINJ, ABS( T ) )
+ MXSINJ = DMAX1( MXSINJ, ABS( T ) )
ELSE
*
* .. choose correct signum for THETA and rotate
*
- THSIGN = -SIGN( ONE, AAPQ1 )
+ THSIGN = -DSIGN( ONE, AAPQ1 )
IF( AAQQ.GT.AAPP0 )THSIGN = -THSIGN
T = ONE / ( THETA+THSIGN*
- $ SQRT( ONE+THETA*THETA ) )
- CS = SQRT( ONE / ( ONE+T*T ) )
+ $ DSQRT( ONE+THETA*THETA ) )
+ CS = DSQRT( ONE / ( ONE+T*T ) )
SN = T*CS
- MXSINJ = AMAX1( MXSINJ, ABS( SN ) )
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ MXSINJ = DMAX1( MXSINJ, ABS( SN ) )
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE+T*APOAQ*AAPQ1 ) )
- AAPP = AAPP*SQRT( AMAX1( ZERO,
+ AAPP = AAPP*DSQRT( DMAX1( ZERO,
$ ONE-T*AQOAP*AAPQ1 ) )
*
- CALL CROT( M, A(1,p), 1, A(1,q), 1,
+ CALL ZROT( M, A(1,p), 1, A(1,q), 1,
$ CS, DCONJG(OMPQ)*SN )
IF( RSVEC ) THEN
- CALL CROT( MVL, V(1,p), 1,
+ CALL ZROT( MVL, V(1,p), 1,
$ V(1,q), 1, CS, DCONJG(OMPQ)*SN )
END IF
END IF
@@ -763,14 +763,14 @@
CALL ZLASCL( 'G', 0, 0, AAQQ, ONE,
$ M, 1, A( 1, q ), LDA,
$ IERR )
- CALL CAXPY( M, -AAPQ, WORK,
+ CALL ZAXPY( M, -AAPQ, WORK,
$ 1, A( 1, q ), 1 )
CALL ZLASCL( 'G', 0, 0, ONE, AAQQ,
$ M, 1, A( 1, q ), LDA,
$ IERR )
- SVA( q ) = AAQQ*SQRT( AMAX1( ZERO,
+ SVA( q ) = AAQQ*DSQRT( DMAX1( ZERO,
$ ONE-AAPQ1*AAPQ1 ) )
- MXSINJ = AMAX1( MXSINJ, SFMIN )
+ MXSINJ = DMAX1( MXSINJ, SFMIN )
ELSE
CALL ZCOPY( M, A( 1, q ), 1,
$ WORK, 1 )
@@ -780,14 +780,14 @@
CALL ZLASCL( 'G', 0, 0, AAPP, ONE,
$ M, 1, A( 1, p ), LDA,
$ IERR )
- CALL CAXPY( M, -DCONJG(AAPQ),
+ CALL ZAXPY( M, -DCONJG(AAPQ),
$ WORK, 1, A( 1, p ), 1 )
CALL ZLASCL( 'G', 0, 0, ONE, AAPP,
$ M, 1, A( 1, p ), LDA,
$ IERR )
- SVA( p ) = AAPP*SQRT( AMAX1( ZERO,
+ SVA( p ) = AAPP*DSQRT( DMAX1( ZERO,
$ ONE-AAPQ1*AAPQ1 ) )
- MXSINJ = AMAX1( MXSINJ, SFMIN )
+ MXSINJ = DMAX1( MXSINJ, SFMIN )
END IF
END IF
* END IF ROTOK THEN ... ELSE
@@ -804,7 +804,7 @@
AAQQ = ONE
CALL ZLASSQ( M, A( 1, q ), 1, T,
$ AAQQ )
- SVA( q ) = T*SQRT( AAQQ )
+ SVA( q ) = T*DSQRT( AAQQ )
END IF
END IF
IF( ( AAPP / AAPP0 )**2.LE.ROOTEPS ) THEN
@@ -816,7 +816,7 @@
AAPP = ONE
CALL ZLASSQ( M, A( 1, p ), 1, T,
$ AAPP )
- AAPP = T*SQRT( AAPP )
+ AAPP = T*DSQRT( AAPP )
END IF
SVA( p ) = AAPP
END IF
@@ -881,7 +881,7 @@
T = ZERO
AAPP = ONE
CALL ZLASSQ( M, A( 1, N ), 1, T, AAPP )
- SVA( N ) = T*SQRT( AAPP )
+ SVA( N ) = T*DSQRT( AAPP )
END IF
*
* Additional steering devices
@@ -889,8 +889,8 @@
IF( ( i.LT.SWBAND ) .AND. ( ( MXAAPQ.LE.ROOTTOL ) .OR.
$ ( ISWROT.LE.N ) ) )SWBAND = i
*
- IF( ( i.GT.SWBAND+1 ) .AND. ( MXAAPQ.LT.SQRT( DBLE( N ) )*
- $ TOL ) .AND. ( DBLE( N )*MXAAPQ*MXSINJ.LT.TOL ) ) THEN
+ IF( ( i.GT.SWBAND+1 ) .AND. ( MXAAPQ.LT.DSQRT( DFLOAT( N ) )*
+ $ TOL ) .AND. ( DFLOAT( N )*MXAAPQ*MXSINJ.LT.TOL ) ) THEN
GO TO 1994
END IF
*
@@ -909,11 +909,11 @@
*
INFO = 0
* #:) INFO = 0 confirms successful iterations.
- 1995 CONTINUE
+ 1995 CONTINUE
*
* Sort the vector SVA() of column norms.
DO 5991 p = 1, N - 1
- q = IZAMAX( N-p+1, SVA( p ), 1 ) + p - 1
+ q = IDAMAX( N-p+1, SVA( p ), 1 ) + p - 1
IF( p.NE.q ) THEN
TEMP1 = SVA( p )
SVA( p ) = SVA( q )
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-28 22:01:45 +0000