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authorIchitaro Yamazaki <iyamazak@bunsen.icl.utk.edu>2017-06-11 03:09:52 (GMT)
committerIchitaro Yamazaki <iyamazak@bunsen.icl.utk.edu>2017-06-11 03:09:52 (GMT)
commit3ba9cdf7cf4fb924a3e7904fe396692028959c3f (patch)
tree970a3f79270e0f4b2d222faed332ca8207509f6e
parente3780628f3d5543cb70cff2e4f5143a95ace0d4e (diff)
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remove "singularity" check in sytrf_aa
-rw-r--r--SRC/chetrf_aa.f22
-rw-r--r--SRC/clahef_aa.f44
-rw-r--r--SRC/clasyf_aa.f44
-rw-r--r--SRC/csytrf_aa.f22
-rw-r--r--SRC/dlasyf_aa.f44
-rw-r--r--SRC/dsytrf_aa.f22
-rw-r--r--SRC/slasyf_aa.f44
-rw-r--r--SRC/ssytrf_aa.f22
-rw-r--r--SRC/zhetrf_aa.f16
-rw-r--r--SRC/zlahef_aa.f44
-rw-r--r--SRC/zlasyf_aa.f44
-rw-r--r--SRC/zsytrf_aa.f16
12 files changed, 46 insertions, 338 deletions
diff --git a/SRC/chetrf_aa.f b/SRC/chetrf_aa.f
index 153a089..d1357e1 100644
--- a/SRC/chetrf_aa.f
+++ b/SRC/chetrf_aa.f
@@ -114,11 +114,7 @@
*> \verbatim
*> INFO is INTEGER
*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
+*> < 0: if INFO = -i, the i-th argument had an illegal value.
*> \endverbatim
*
* Authors:
@@ -159,7 +155,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
COMPLEX ALPHA
* ..
@@ -215,9 +211,6 @@
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
A( 1, 1 ) = REAL( A( 1, 1 ) )
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -261,11 +254,7 @@
*
CALL CLAHEF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -385,10 +374,7 @@
*
CALL CLAHEF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
diff --git a/SRC/clahef_aa.f b/SRC/clahef_aa.f
index 1fbe9a4..bd53136 100644
--- a/SRC/clahef_aa.f
+++ b/SRC/clahef_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE CLAHEF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is COMPLEX workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE CLAHEF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -319,12 +308,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- END IF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -345,13 +328,6 @@
CALL CLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -476,11 +452,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -501,13 +472,6 @@
CALL CLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/clasyf_aa.f b/SRC/clasyf_aa.f
index c58cd85..8d0d40a 100644
--- a/SRC/clasyf_aa.f
+++ b/SRC/clasyf_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE CLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is REAL workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE CLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -315,12 +304,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- ENDIF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -341,13 +324,6 @@
CALL CLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -468,11 +444,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -493,13 +464,6 @@
CALL CLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/csytrf_aa.f b/SRC/csytrf_aa.f
index 7fcbb37..2eb2e82 100644
--- a/SRC/csytrf_aa.f
+++ b/SRC/csytrf_aa.f
@@ -114,11 +114,7 @@
*> \verbatim
*> INFO is INTEGER
*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
+*> < 0: if INFO = -i, the i-th argument had an illegal value.
*> \endverbatim
*
* Authors:
@@ -159,7 +155,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
COMPLEX ALPHA
* ..
@@ -214,9 +210,6 @@
ENDIF
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -260,11 +253,7 @@
*
CALL CLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -383,10 +372,7 @@
*
CALL CLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
diff --git a/SRC/dlasyf_aa.f b/SRC/dlasyf_aa.f
index 08d7520..fa6cccb 100644
--- a/SRC/dlasyf_aa.f
+++ b/SRC/dlasyf_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE DLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is DOUBLE PRECISION workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE DLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -315,12 +304,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- ENDIF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -341,13 +324,6 @@
CALL DLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -468,11 +444,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -493,13 +464,6 @@
CALL DLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/dsytrf_aa.f b/SRC/dsytrf_aa.f
index c3d598b..1fabc23 100644
--- a/SRC/dsytrf_aa.f
+++ b/SRC/dsytrf_aa.f
@@ -114,11 +114,7 @@
*> \verbatim
*> INFO is INTEGER
*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
+*> < 0: if INFO = -i, the i-th argument had an illegal value.
*> \endverbatim
*
* Authors:
@@ -159,7 +155,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
DOUBLE PRECISION ALPHA
* ..
@@ -214,9 +210,6 @@
ENDIF
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -260,11 +253,7 @@
*
CALL DLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -383,10 +372,7 @@
*
CALL DLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
diff --git a/SRC/slasyf_aa.f b/SRC/slasyf_aa.f
index 5391cef..c990386 100644
--- a/SRC/slasyf_aa.f
+++ b/SRC/slasyf_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE SLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is REAL workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE SLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -315,12 +304,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- ENDIF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -341,13 +324,6 @@
CALL SLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -468,11 +444,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -493,13 +464,6 @@
CALL SLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/ssytrf_aa.f b/SRC/ssytrf_aa.f
index 98f433a..d9684b0 100644
--- a/SRC/ssytrf_aa.f
+++ b/SRC/ssytrf_aa.f
@@ -114,11 +114,7 @@
*> \verbatim
*> INFO is INTEGER
*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
+*> < 0: if INFO = -i, the i-th argument had an illegal value.
*> \endverbatim
*
* Authors:
@@ -159,7 +155,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
REAL ALPHA
* ..
@@ -214,9 +210,6 @@
ENDIF
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -260,11 +253,7 @@
*
CALL SLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -383,10 +372,7 @@
*
CALL SLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
diff --git a/SRC/zhetrf_aa.f b/SRC/zhetrf_aa.f
index 05844bb..7e1c7a5 100644
--- a/SRC/zhetrf_aa.f
+++ b/SRC/zhetrf_aa.f
@@ -159,7 +159,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
COMPLEX*16 ALPHA
* ..
@@ -215,9 +215,6 @@
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
A( 1, 1 ) = DBLE( A( 1, 1 ) )
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -261,11 +258,7 @@
*
CALL ZLAHEF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -385,10 +378,7 @@
*
CALL ZLAHEF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
diff --git a/SRC/zlahef_aa.f b/SRC/zlahef_aa.f
index 4646233..5264518 100644
--- a/SRC/zlahef_aa.f
+++ b/SRC/zlahef_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE ZLAHEF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is COMPLEX*16 workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE ZLAHEF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -319,12 +308,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- END IF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -345,13 +328,6 @@
CALL ZLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -476,11 +452,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -501,13 +472,6 @@
CALL ZLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/zlasyf_aa.f b/SRC/zlasyf_aa.f
index 8e28d4f..c2ed36c 100644
--- a/SRC/zlasyf_aa.f
+++ b/SRC/zlasyf_aa.f
@@ -19,11 +19,11 @@
* ===========
*
* SUBROUTINE ZLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
-* H, LDH, WORK, INFO )
+* H, LDH, WORK )
*
* .. Scalar Arguments ..
* CHARACTER UPLO
-* INTEGER J1, M, NB, LDA, LDH, INFO
+* INTEGER J1, M, NB, LDA, LDH
* ..
* .. Array Arguments ..
* INTEGER IPIV( * )
@@ -127,16 +127,6 @@
*> WORK is COMPLEX*16 workspace, dimension (M).
*> \endverbatim
*>
-*> \param[out] INFO
-*> \verbatim
-*> INFO is INTEGER
-*> = 0: successful exit
-*> < 0: if INFO = -i, the i-th argument had an illegal value
-*> > 0: if INFO = i, D(i,i) is exactly zero. The factorization
-*> has been completed, but the block diagonal matrix D is
-*> exactly singular, and division by zero will occur if it
-*> is used to solve a system of equations.
-*> \endverbatim
*
* Authors:
* ========
@@ -152,7 +142,7 @@
*
* =====================================================================
SUBROUTINE ZLASYF_AA( UPLO, J1, M, NB, A, LDA, IPIV,
- $ H, LDH, WORK, INFO )
+ $ H, LDH, WORK )
*
* -- LAPACK computational routine (version 3.7.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
@@ -163,7 +153,7 @@
*
* .. Scalar Arguments ..
CHARACTER UPLO
- INTEGER M, NB, J1, LDA, LDH, INFO
+ INTEGER M, NB, J1, LDA, LDH
* ..
* .. Array Arguments ..
INTEGER IPIV( * )
@@ -192,7 +182,6 @@
* ..
* .. Executable Statements ..
*
- INFO = 0
J = 1
*
* K1 is the first column of the panel to be factorized
@@ -315,12 +304,6 @@
* Set A(J, J+1) = T(J, J+1)
*
A( K, J+1 ) = WORK( 2 )
- IF( (A( K, J ).EQ.ZERO ) .AND. (A( K, J+1 ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( K-1, J ).EQ.ZERO)) ) THEN
- IF(INFO .EQ. 0) THEN
- INFO = J
- ENDIF
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -341,13 +324,6 @@
CALL ZLASET( 'Full', 1, M-J-1, ZERO, ZERO,
$ A( K, J+2 ), LDA)
END IF
- ELSE
- IF( (A( K, J ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J-1, J ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 10
@@ -468,11 +444,6 @@
* Set A(J+1, J) = T(J+1, J)
*
A( J+1, K ) = WORK( 2 )
- IF( (A( J, K ).EQ.ZERO) .AND. (A( J+1, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO .EQ. 0)
- $ INFO = J
- END IF
*
IF( J.LT.NB ) THEN
*
@@ -493,13 +464,6 @@
CALL ZLASET( 'Full', M-J-1, 1, ZERO, ZERO,
$ A( J+2, K ), LDA )
END IF
- ELSE
- IF( (A( J, K ).EQ.ZERO) .AND.
- $ ((K.EQ.1) .OR. (A( J, K-1 ).EQ.ZERO)) ) THEN
- IF (INFO.EQ.0) THEN
- INFO = J
- END IF
- END IF
END IF
J = J + 1
GO TO 30
diff --git a/SRC/zsytrf_aa.f b/SRC/zsytrf_aa.f
index 02f8cdd..bb832fc 100644
--- a/SRC/zsytrf_aa.f
+++ b/SRC/zsytrf_aa.f
@@ -159,7 +159,7 @@
*
* .. Local Scalars ..
LOGICAL LQUERY, UPPER
- INTEGER J, LWKOPT, IINFO
+ INTEGER J, LWKOPT
INTEGER NB, MJ, NJ, K1, K2, J1, J2, J3, JB
COMPLEX*16 ALPHA
* ..
@@ -214,9 +214,6 @@
ENDIF
IPIV( 1 ) = 1
IF ( N.EQ.1 ) THEN
- IF ( A( 1, 1 ).EQ.ZERO ) THEN
- INFO = 1
- END IF
RETURN
END IF
*
@@ -260,11 +257,7 @@
*
CALL ZLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( MAX(1, J), J+1 ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ),
- $ IINFO )
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*
@@ -383,10 +376,7 @@
*
CALL ZLASYF_AA( UPLO, 2-K1, N-J, JB,
$ A( J+1, MAX(1, J) ), LDA,
- $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ), IINFO)
- IF( (IINFO.GT.0) .AND. (INFO.EQ.0) ) THEN
- INFO = IINFO+J
- ENDIF
+ $ IPIV( J+1 ), WORK, N, WORK( N*NB+1 ) )
*
* Ajust IPIV and apply it back (J-th step picks (J+1)-th pivot)
*