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author | jofret | 2009-04-28 07:17:00 +0000 |
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committer | jofret | 2009-04-28 07:17:00 +0000 |
commit | 8c8d2f518968ce7057eec6aa5cd5aec8faab861a (patch) | |
tree | 3dd1788b71d6a3ce2b73d2d475a3133580e17530 /src/lib/lapack/dormhr.f | |
parent | 9f652ffc16a310ac6641a9766c5b9e2671e0e9cb (diff) | |
download | scilab2c-8c8d2f518968ce7057eec6aa5cd5aec8faab861a.tar.gz scilab2c-8c8d2f518968ce7057eec6aa5cd5aec8faab861a.tar.bz2 scilab2c-8c8d2f518968ce7057eec6aa5cd5aec8faab861a.zip |
Moving lapack to right place
Diffstat (limited to 'src/lib/lapack/dormhr.f')
-rw-r--r-- | src/lib/lapack/dormhr.f | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/src/lib/lapack/dormhr.f b/src/lib/lapack/dormhr.f deleted file mode 100644 index 5862538e..00000000 --- a/src/lib/lapack/dormhr.f +++ /dev/null @@ -1,201 +0,0 @@ - SUBROUTINE DORMHR( SIDE, TRANS, M, N, ILO, IHI, A, LDA, TAU, C, - $ LDC, WORK, LWORK, INFO ) -* -* -- LAPACK routine (version 3.1) -- -* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. -* November 2006 -* -* .. Scalar Arguments .. - CHARACTER SIDE, TRANS - INTEGER IHI, ILO, INFO, LDA, LDC, LWORK, M, N -* .. -* .. Array Arguments .. - DOUBLE PRECISION A( LDA, * ), C( LDC, * ), TAU( * ), WORK( * ) -* .. -* -* Purpose -* ======= -* -* DORMHR overwrites the general real M-by-N matrix C with -* -* SIDE = 'L' SIDE = 'R' -* TRANS = 'N': Q * C C * Q -* TRANS = 'T': Q**T * C C * Q**T -* -* where Q is a real orthogonal matrix of order nq, with nq = m if -* SIDE = 'L' and nq = n if SIDE = 'R'. Q is defined as the product of -* IHI-ILO elementary reflectors, as returned by DGEHRD: -* -* Q = H(ilo) H(ilo+1) . . . H(ihi-1). -* -* Arguments -* ========= -* -* SIDE (input) CHARACTER*1 -* = 'L': apply Q or Q**T from the Left; -* = 'R': apply Q or Q**T from the Right. -* -* TRANS (input) CHARACTER*1 -* = 'N': No transpose, apply Q; -* = 'T': Transpose, apply Q**T. -* -* M (input) INTEGER -* The number of rows of the matrix C. M >= 0. -* -* N (input) INTEGER -* The number of columns of the matrix C. N >= 0. -* -* ILO (input) INTEGER -* IHI (input) INTEGER -* ILO and IHI must have the same values as in the previous call -* of DGEHRD. Q is equal to the unit matrix except in the -* submatrix Q(ilo+1:ihi,ilo+1:ihi). -* If SIDE = 'L', then 1 <= ILO <= IHI <= M, if M > 0, and -* ILO = 1 and IHI = 0, if M = 0; -* if SIDE = 'R', then 1 <= ILO <= IHI <= N, if N > 0, and -* ILO = 1 and IHI = 0, if N = 0. -* -* A (input) DOUBLE PRECISION array, dimension -* (LDA,M) if SIDE = 'L' -* (LDA,N) if SIDE = 'R' -* The vectors which define the elementary reflectors, as -* returned by DGEHRD. -* -* LDA (input) INTEGER -* The leading dimension of the array A. -* LDA >= max(1,M) if SIDE = 'L'; LDA >= max(1,N) if SIDE = 'R'. -* -* TAU (input) DOUBLE PRECISION array, dimension -* (M-1) if SIDE = 'L' -* (N-1) if SIDE = 'R' -* TAU(i) must contain the scalar factor of the elementary -* reflector H(i), as returned by DGEHRD. -* -* C (input/output) DOUBLE PRECISION array, dimension (LDC,N) -* On entry, the M-by-N matrix C. -* On exit, C is overwritten by Q*C or Q**T*C or C*Q**T or C*Q. -* -* LDC (input) INTEGER -* The leading dimension of the array C. LDC >= max(1,M). -* -* WORK (workspace/output) DOUBLE PRECISION array, dimension (MAX(1,LWORK)) -* On exit, if INFO = 0, WORK(1) returns the optimal LWORK. -* -* LWORK (input) INTEGER -* The dimension of the array WORK. -* If SIDE = 'L', LWORK >= max(1,N); -* if SIDE = 'R', LWORK >= max(1,M). -* For optimum performance LWORK >= N*NB if SIDE = 'L', and -* LWORK >= M*NB if SIDE = 'R', where NB is the optimal -* blocksize. -* -* If LWORK = -1, then a workspace query is assumed; the routine -* only calculates the optimal size of the WORK array, returns -* this value as the first entry of the WORK array, and no error -* message related to LWORK is issued by XERBLA. -* -* INFO (output) INTEGER -* = 0: successful exit -* < 0: if INFO = -i, the i-th argument had an illegal value -* -* ===================================================================== -* -* .. Local Scalars .. - LOGICAL LEFT, LQUERY - INTEGER I1, I2, IINFO, LWKOPT, MI, NB, NH, NI, NQ, NW -* .. -* .. External Functions .. - LOGICAL LSAME - INTEGER ILAENV - EXTERNAL LSAME, ILAENV -* .. -* .. External Subroutines .. - EXTERNAL DORMQR, XERBLA -* .. -* .. Intrinsic Functions .. - INTRINSIC MAX, MIN -* .. -* .. Executable Statements .. -* -* Test the input arguments -* - INFO = 0 - NH = IHI - ILO - LEFT = LSAME( SIDE, 'L' ) - LQUERY = ( LWORK.EQ.-1 ) -* -* NQ is the order of Q and NW is the minimum dimension of WORK -* - IF( LEFT ) THEN - NQ = M - NW = N - ELSE - NQ = N - NW = M - END IF - IF( .NOT.LEFT .AND. .NOT.LSAME( SIDE, 'R' ) ) THEN - INFO = -1 - ELSE IF( .NOT.LSAME( TRANS, 'N' ) .AND. .NOT.LSAME( TRANS, 'T' ) ) - $ THEN - INFO = -2 - ELSE IF( M.LT.0 ) THEN - INFO = -3 - ELSE IF( N.LT.0 ) THEN - INFO = -4 - ELSE IF( ILO.LT.1 .OR. ILO.GT.MAX( 1, NQ ) ) THEN - INFO = -5 - ELSE IF( IHI.LT.MIN( ILO, NQ ) .OR. IHI.GT.NQ ) THEN - INFO = -6 - ELSE IF( LDA.LT.MAX( 1, NQ ) ) THEN - INFO = -8 - ELSE IF( LDC.LT.MAX( 1, M ) ) THEN - INFO = -11 - ELSE IF( LWORK.LT.MAX( 1, NW ) .AND. .NOT.LQUERY ) THEN - INFO = -13 - END IF -* - IF( INFO.EQ.0 ) THEN - IF( LEFT ) THEN - NB = ILAENV( 1, 'DORMQR', SIDE // TRANS, NH, N, NH, -1 ) - ELSE - NB = ILAENV( 1, 'DORMQR', SIDE // TRANS, M, NH, NH, -1 ) - END IF - LWKOPT = MAX( 1, NW )*NB - WORK( 1 ) = LWKOPT - END IF -* - IF( INFO.NE.0 ) THEN - CALL XERBLA( 'DORMHR', -INFO ) - RETURN - ELSE IF( LQUERY ) THEN - RETURN - END IF -* -* Quick return if possible -* - IF( M.EQ.0 .OR. N.EQ.0 .OR. NH.EQ.0 ) THEN - WORK( 1 ) = 1 - RETURN - END IF -* - IF( LEFT ) THEN - MI = NH - NI = N - I1 = ILO + 1 - I2 = 1 - ELSE - MI = M - NI = NH - I1 = 1 - I2 = ILO + 1 - END IF -* - CALL DORMQR( SIDE, TRANS, MI, NI, NH, A( ILO+1, ILO ), LDA, - $ TAU( ILO ), C( I1, I2 ), LDC, WORK, LWORK, IINFO ) -* - WORK( 1 ) = LWKOPT - RETURN -* -* End of DORMHR -* - END |