NAME

TESTING/LIN/ddrvgbx.f

SYNOPSIS

Functions/Subroutines

subroutine ddrvgb (dotype, nn, nval, nrhs, thresh, tsterr, a, la, afb, lafb, asav, b, bsav, x, xact, s, work, rwork, iwork, nout)
DDRVGBX

Function/Subroutine Documentation

subroutine ddrvgb (logical, dimension( * ) dotype, integer nn, integer, dimension( * ) nval, integer nrhs, double precision thresh, logical tsterr, double precision, dimension( * ) a, integer la, double precision, dimension( * ) afb, integer lafb, double precision, dimension( * ) asav, double precision, dimension( * ) b, double precision, dimension( * ) bsav, double precision, dimension( * ) x, double precision, dimension( * ) xact, double precision, dimension( * ) s, double precision, dimension( * ) work, double precision, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)

DDRVGBX

Purpose:



 DDRVGB tests the driver routines DGBSV, -SVX, and -SVXX.


 Note that this file is used only when the XBLAS are available,


 otherwise ddrvgb.f defines this subroutine.

Parameters

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 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 column 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.



          A is DOUBLE PRECISION array, dimension (LA)



          LA is INTEGER


          The length of the array A.  LA >= (2*NMAX-1)*NMAX


          where NMAX is the largest entry in NVAL.

AFB



          AFB is DOUBLE PRECISION array, dimension (LAFB)

LAFB



          LAFB is INTEGER


          The length of the array AFB.  LAFB >= (3*NMAX-2)*NMAX


          where NMAX is the largest entry in NVAL.

ASAV



          ASAV is DOUBLE PRECISION array, dimension (LA)



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

BSAV



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



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

XACT



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



          S is DOUBLE PRECISION array, dimension (2*NMAX)

WORK



          WORK is DOUBLE PRECISION array, dimension


                      (NMAX*max(3,NRHS,NMAX))

RWORK



          RWORK is DOUBLE PRECISION array, dimension


                      (max(2*NMAX,NMAX+2*NRHS))

IWORK



          IWORK is INTEGER array, dimension (2*NMAX)

NOUT



          NOUT is INTEGER


          The unit number for output.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 172 of file ddrvgbx.f.

Author

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