DDRVSY(3)

🧪 DDRVSY(3) — bestie, this is the ddrvsy.f page 🧪

okay so we're in the DDRVSY(3) page from the Library Functions Manual, and the header path is literally /home/abui...IN/ddrvsy.f(3). No cap, that's the vibe. 💅

🌸 NAME 🌸

The NAME section is just this whole path, bestie:

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/ddrvsy.f

That's it. That's the name. Iconic. ✨

✨ SYNOPSIS ✨

🧚 Functions/Subroutines 🧚

subroutine DDRVSY (dotype, nn, nval, nrhs, thresh, tsterr, nmax, a,
    afac, ainv, b, x, xact, work, rwork, iwork, nout)
    DDRVSY

🫶 Function/Subroutine Documentation 🫶

Here's the full signature, copied exactly, because we do not play with code:

   subroutine DDRVSY (logical, dimension( * ) dotype, integer nn, integer,
       dimension( * ) nval, integer nrhs, double precision thresh, logical
       tsterr, integer nmax, double precision, dimension( * ) a, double
       precision, dimension( * ) afac, double precision, dimension( * ) ainv,
       double precision, dimension( * ) b, double precision, dimension( * ) x,
       double precision, dimension( * ) xact, double precision, dimension( * )
       work, double precision, dimension( * ) rwork, integer, dimension( * )
       iwork, integer nout)
       DDRVSY

🎯 Purpose 🎯

The source docblock literally says:

!>
!> DDRVSY tests the driver routines DSYSV and -SVX.
!>

So it's testing DSYSV and -SVX. Slay. 💖

💅 Parameters 💅

• DOTYPE — 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 — INTEGER. The number of values of N contained in the vector NVAL.
• NVAL — INTEGER array, dimension (NN). The values of the matrix dimension N.
• NRHS — INTEGER. The number of right hand side vectors to be generated for each linear system.
• THRESH — 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 — LOGICAL. Flag that indicates whether error exits are to be tested.
• NMAX — INTEGER. The maximum value permitted for N, used in dimensioning the work arrays.
• A — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AFAC — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AINV — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• X — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• XACT — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• WORK — DOUBLE PRECISION array, dimension (NMAX*max(2,NRHS)).
• RWORK — DOUBLE PRECISION array, dimension (NMAX+2*NRHS).
• IWORK — INTEGER array, dimension (2*NMAX).
• NOUT — INTEGER. The unit number for output.

👑 Author 👑

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

Definition at line 149 of file ddrvsy.f.

🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code.

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okay bestie, that's the whole vibe 💖 — source/version says LAPACK Version 3.12.0, footer path is /home/abui...IN/ddrvsy.f(3), and the footer didn't give a date so I'm not inventing one. Periodt. 🎀✨