.TH "TESTING/LIN/ddrvgbx.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/LIN/ddrvgbx.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBddrvgb\fP (dotype, nn, nval, nrhs, thresh, tsterr, a, la, afb, lafb, asav, b, bsav, x, xact, s, work, rwork, iwork, nout)"
.br
.RI "\fBDDRVGBX\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "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)"

.PP
\fBDDRVGBX\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 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\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIDOTYPE\fP 
.PP
.nf
          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\&.
.fi
.PP
.br
\fINN\fP 
.PP
.nf
          NN is INTEGER
          The number of values of N contained in the vector NVAL\&.
.fi
.PP
.br
\fINVAL\fP 
.PP
.nf
          NVAL is INTEGER array, dimension (NN)
          The values of the matrix column dimension N\&.
.fi
.PP
.br
\fINRHS\fP 
.PP
.nf
          NRHS is INTEGER
          The number of right hand side vectors to be generated for
          each linear system\&.
.fi
.PP
.br
\fITHRESH\fP 
.PP
.nf
          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\&.
.fi
.PP
.br
\fITSTERR\fP 
.PP
.nf
          TSTERR is LOGICAL
          Flag that indicates whether error exits are to be tested\&.
.fi
.PP
.br
\fIA\fP 
.PP
.nf
          A is DOUBLE PRECISION array, dimension (LA)
.fi
.PP
.br
\fILA\fP 
.PP
.nf
          LA is INTEGER
          The length of the array A\&.  LA >= (2*NMAX-1)*NMAX
          where NMAX is the largest entry in NVAL\&.
.fi
.PP
.br
\fIAFB\fP 
.PP
.nf
          AFB is DOUBLE PRECISION array, dimension (LAFB)
.fi
.PP
.br
\fILAFB\fP 
.PP
.nf
          LAFB is INTEGER
          The length of the array AFB\&.  LAFB >= (3*NMAX-2)*NMAX
          where NMAX is the largest entry in NVAL\&.
.fi
.PP
.br
\fIASAV\fP 
.PP
.nf
          ASAV is DOUBLE PRECISION array, dimension (LA)
.fi
.PP
.br
\fIB\fP 
.PP
.nf
          B is DOUBLE PRECISION array, dimension (NMAX*NRHS)
.fi
.PP
.br
\fIBSAV\fP 
.PP
.nf
          BSAV is DOUBLE PRECISION array, dimension (NMAX*NRHS)
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is DOUBLE PRECISION array, dimension (NMAX*NRHS)
.fi
.PP
.br
\fIXACT\fP 
.PP
.nf
          XACT is DOUBLE PRECISION array, dimension (NMAX*NRHS)
.fi
.PP
.br
\fIS\fP 
.PP
.nf
          S is DOUBLE PRECISION array, dimension (2*NMAX)
.fi
.PP
.br
\fIWORK\fP 
.PP
.nf
          WORK is DOUBLE PRECISION array, dimension
                      (NMAX*max(3,NRHS,NMAX))
.fi
.PP
.br
\fIRWORK\fP 
.PP
.nf
          RWORK is DOUBLE PRECISION array, dimension
                      (max(2*NMAX,NMAX+2*NRHS))
.fi
.PP
.br
\fIIWORK\fP 
.PP
.nf
          IWORK is INTEGER array, dimension (2*NMAX)
.fi
.PP
.br
\fINOUT\fP 
.PP
.nf
          NOUT is INTEGER
          The unit number for output\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB172\fP of file \fBddrvgbx\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.