TESTING/LIN/ddrvpb.f(3)

💖 NAME

TESTING/LIN/ddrvpb.f — that's the file, bestie, and the page title is TESTING/LIN/ddrvpb.f(3). It lives in the Library Functions Manual and it's all about the ddrvpb test driver. ✨

🎀 SYNOPSIS

🌈 Functions/Subroutines

subroutine ddrvpb (dotype, nn, nval, nrhs, thresh, tsterr, nmax, a,
    afac, asav, b, bsav, x, xact, s, work, rwork, iwork, nout)
    DDRVPB

🦋 Function/Subroutine Documentation

subroutine ddrvpb (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( * ) 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)
    DDRVPB

DDRVPB — iconic, honestly. 💅

✨ Purpose

DDRVPB tests the driver routines DPBSV and -SVX. That's the whole purpose, periodt. 🫶

🌸 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).
• ASAV — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• BSAV — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• X — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• XACT — DOUBLE PRECISION array, dimension (NMAX*NRHS).
• S — DOUBLE PRECISION array, dimension (NMAX).
• WORK — DOUBLE PRECISION array, dimension (NMAX*max(3,NRHS)).
• RWORK — DOUBLE PRECISION array, dimension (NMAX+2*NRHS).
• IWORK — INTEGER array, dimension (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 161 of file ddrvpb.f.

🎀 Author

Generated automatically by Doxygen for LAPACK from the source code.

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okay that's the whole page, bestie 🫶 — the footer says LAPACK Version 3.12.0 and TESTING/LIN/ddrvpb.f(3), and there's no separate date printed on this page, so that's the source/version/date situation: version tag slays, date is a mystery 🙈💅.