SUBROUTINE LA_TEST_DGELS( TRANS, M, N, NRHS, A, LDA, B, LDB, WORK, LWORK, INFO ) ! ! -- LAPACK95 interface driver routine (version 1.1) -- ! UNI-C, Denmark, ! April 19, 1999 ! ! .. Use Statements .. USE LA_PRECISION, ONLY: WP => DP USE F95_LAPACK, ONLY: LA_GELS ! .. Implicit Statement .. IMPLICIT NONE ! .. Scalar Arguments .. INTEGER, INTENT(IN) :: M, N, NRHS, LDA, LDB, LWORK INTEGER, INTENT(INOUT) :: INFO CHARACTER*1, INTENT(IN) :: TRANS ! .. Array Arguments .. REAL(WP), INTENT(INOUT) :: A(1:LDA,1:N), B(1:LDB,1:NRHS) REAL(WP), INTENT(OUT) :: WORK(1: LWORK) ! .. Parameters .. CHARACTER(LEN=8), PARAMETER :: SRNAME = 'LA_GELS ' CHARACTER(LEN=14), PARAMETER :: SRNAMT = 'LA_TEST_DGELS ' ! .. Common blocks .. INTEGER :: INFOTC COMMON /LINFO95/ INFOTC ! .. Local Scalars .. INTEGER :: I, J, IA1, IA2, IB1, IB2 CHARACTER*1 :: ITRANS ! .. Local Arrays .. INTEGER, SAVE, POINTER :: IWORK(:) LOGICAL, SAVE :: CTEST = .TRUE., ETEST = .TRUE. ! .. Executable Statements .. IA1 = M; IA2 = N; IB1 = MAX(1,M,N); IB2 = NRHS; ITRANS = TRANS I = INFO / 100; J = INFO - I*100 SELECT CASE(I) CASE(0) IF (NRHS==1) THEN CALL LA_GELS( A(1:IA1,1:IA2), B(1:IB1,1), ITRANS, INFO ) INFO = INFOTC ELSE CALL LA_GELS( A(1:IA1,1:IA2), B(1:IB1,1:IB2), ITRANS, INFO ) INFO = INFOTC ENDIF CASE (2) IB1 = max(1, n, m) -1 CASE(3) ITRANS = 'P' CASE(:-1,1,4:) CALL UESTOP(SRNAMT) END SELECT IF( I /= 0) THEN SELECT CASE (NRHS) CASE (2:) CALL LA_GELS( A(1:IA1,1:IA2), B(1:IB1,1:IB2), ITRANS, INFO ) CASE(1) CALL LA_GELS( A(1:IA1,1:IA2), B(1:IB1,1), ITRANS, INFO ) CASE(:-1) CALL UESTOP(SRNAMT) END SELECT END IF CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT ) END SUBROUTINE LA_TEST_DGELS