diff options
Diffstat (limited to 'SRC/chetrf_aa.f')
| -rw-r--r-- | SRC/chetrf_aa.f | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/SRC/chetrf_aa.f b/SRC/chetrf_aa.f index 153a089d..bed227f3 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 * .. @@ -215,13 +211,10 @@ 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 * -* Adjubst block size based on the workspace size +* Adjust block size based on the workspace size * IF( LWORK.LT.((1+NB)*N) ) THEN NB = ( LWORK-N ) / N @@ -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) * |