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Diff for /rpl/lapack/lapack/zsytri2.f between versions 1.2 and 1.3

version 1.2, 2010/12/21 13:53:56 version 1.3, 2011/07/22 07:38:20
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       SUBROUTINE ZSYTRI2( UPLO, N, A, LDA, IPIV, WORK, LWORK, INFO )        SUBROUTINE ZSYTRI2( UPLO, N, A, LDA, IPIV, WORK, LWORK, INFO )
 *  *
 *  -- LAPACK routine (version 3.3.0) --  *  -- LAPACK routine (version 3.3.1) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     November 2010  *  -- April 2011                                                      --
 *  *
 *  -- Written by Julie Langou of the Univ. of TN    --  *  -- Written by Julie Langou of the Univ. of TN    --
 *  *
   * @precisions normal z -> s d c
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       CHARACTER          UPLO        CHARACTER          UPLO
       INTEGER            INFO, LDA, LWORK, N        INTEGER            INFO, LDA, LWORK, N
 *     ..  *     ..
 *     .. Array Arguments ..  *     .. Array Arguments ..
       INTEGER            IPIV( * )        INTEGER            IPIV( * )
       DOUBLE COMPLEX     A( LDA, * ), WORK( * )        COMPLEX*16         A( LDA, * ), WORK( * )
 *     ..  *     ..
 *  *
 *  Purpose  *  Purpose
 *  =======  *  =======
 *  *
 *  ZSYTRI2 computes the inverse of a complex symmetric indefinite matrix  *  ZSYTRI2 computes the inverse of a COMPLEX*16 hermitian indefinite matrix
 *  A using the factorization A = U*D*U**T or A = L*D*L**T computed by  *  A using the factorization A = U*D*U**T or A = L*D*L**T computed by
 *  ZSYTRF. ZSYTRI2 sets the LEADING DIMENSION of the workspace  *  ZSYTRF. ZSYTRI2 sets the LEADING DIMENSION of the workspace
 *  before calling ZSYTRI2X that actually computes the inverse.  *  before calling ZSYTRI2X that actually computes the inverse.
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 *  N       (input) INTEGER  *  N       (input) INTEGER
 *          The order of the matrix A.  N >= 0.  *          The order of the matrix A.  N >= 0.
 *  *
 *  A       (input/output) DOUBLE COMPLEX array, dimension (LDA,N)  *  A       (input/output) COMPLEX*16 array, dimension (LDA,N)
 *          On entry, the NB diagonal matrix D and the multipliers  *          On entry, the NB diagonal matrix D and the multipliers
 *          used to obtain the factor U or L as computed by ZSYTRF.  *          used to obtain the factor U or L as computed by ZSYTRF.
 *  *
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 *          Details of the interchanges and the NB structure of D  *          Details of the interchanges and the NB structure of D
 *          as determined by ZSYTRF.  *          as determined by ZSYTRF.
 *  *
 *  WORK    (workspace) DOUBLE COMPLEX array, dimension (N+NB+1)*(NB+3)  *  WORK    (workspace) COMPLEX*16 array, dimension (N+NB+1)*(NB+3)
 *  *
 *  LWORK   (input) INTEGER  *  LWORK   (input) INTEGER
 *          The dimension of the array WORK.  *          The dimension of the array WORK.
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       LQUERY = ( LWORK.EQ.-1 )        LQUERY = ( LWORK.EQ.-1 )
 *     Get blocksize  *     Get blocksize
       NBMAX = ILAENV( 1, 'ZSYTRF', UPLO, N, -1, -1, -1 )        NBMAX = ILAENV( 1, 'ZSYTRF', UPLO, N, -1, -1, -1 )
       MINSIZE = (N+NBMAX+1)*(NBMAX+3)        IF ( NBMAX .GE. N ) THEN
            MINSIZE = N
         ELSE
            MINSIZE = (N+NBMAX+1)*(NBMAX+3)
         END IF
 *  *
       IF( .NOT.UPPER .AND. .NOT.LSAME( UPLO, 'L' ) ) THEN        IF( .NOT.UPPER .AND. .NOT.LSAME( UPLO, 'L' ) ) THEN
          INFO = -1           INFO = -1
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          CALL XERBLA( 'ZSYTRI2', -INFO )           CALL XERBLA( 'ZSYTRI2', -INFO )
          RETURN           RETURN
       ELSE IF( LQUERY ) THEN        ELSE IF( LQUERY ) THEN
          WORK(1)=(N+NBMAX+1)*(NBMAX+3)           WORK(1)=MINSIZE
          RETURN           RETURN
       END IF        END IF
       IF( N.EQ.0 )        IF( N.EQ.0 )
      $   RETURN       $   RETURN
               
       CALL ZSYTRI2X( UPLO, N, A, LDA, IPIV, WORK, NBMAX, INFO )        IF( NBMAX .GE. N ) THEN
            CALL ZSYTRI( UPLO, N, A, LDA, IPIV, WORK, INFO )
         ELSE
            CALL ZSYTRI2X( UPLO, N, A, LDA, IPIV, WORK, NBMAX, INFO )
         END IF
       RETURN        RETURN
 *  *
 *     End of ZSYTRI2  *     End of ZSYTRI2
Removed from v.1.2  
changed lines
  Added in v.1.3

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