DDRVSY tests the driver routines DSYSV and -SVX.

DOTYPE

          DOTYPE is LOGICAL array, dimension (NTYPES)


          The matrix types to be used for testing.  Matrices of type j


          (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =


          .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.

NN

          NN is INTEGER


          The number of values of N contained in the vector NVAL.

NVAL

          NVAL is INTEGER array, dimension (NN)


          The values of the matrix dimension N.

NRHS

          NRHS is INTEGER


          The number of right hand side vectors to be generated for


          each linear system.

THRESH

          THRESH is DOUBLE PRECISION


          The threshold value for the test ratios.  A result is


          included in the output file if RESULT >= THRESH.  To have


          every test ratio printed, use THRESH = 0.

TSTERR

          TSTERR is LOGICAL


          Flag that indicates whether error exits are to be tested.

NMAX

          NMAX is INTEGER


          The maximum value permitted for N, used in dimensioning the


          work arrays.

A

          A is DOUBLE PRECISION array, dimension (NMAX*NMAX)

AFAC

          AFAC is DOUBLE PRECISION array, dimension (NMAX*NMAX)

AINV

          AINV is DOUBLE PRECISION array, dimension (NMAX*NMAX)

B

          B is DOUBLE PRECISION array, dimension (NMAX*NRHS)

X

          X is DOUBLE PRECISION array, dimension (NMAX*NRHS)

XACT

          XACT is DOUBLE PRECISION array, dimension (NMAX*NRHS)

WORK

          WORK is DOUBLE PRECISION array, dimension (NMAX*max(2,NRHS))

RWORK

          RWORK is DOUBLE PRECISION array, dimension (NMAX+2*NRHS)

IWORK

          IWORK is INTEGER array, dimension (2*NMAX)

NOUT

          NOUT is INTEGER


          The unit number for output.

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