TESTING/LIN/ddrvsy_aa.f(3)

TESTING/LIN/ddrvsy_aa.f(3) 💅

okay bestie, this one is from the Library Functions Manual, and it's giving “LAPACK test-driver lore” energy. Let's get into it 🫶

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💖 NAME 💖

TESTING/LIN/ddrvsy_aa.f

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✨ SYNOPSIS ✨

Functions/Subroutines

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

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🦋 Function/Subroutine Documentation 🦋

subroutine ddrvsy_aa (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_AA

🎀 Purpose 🎀

DDRVSY_AA tests the driver routine DSYSV_AA. no cap, that's the whole purpose 💅

🌸 Parameters 🌸

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). These are the matrix types used for testing, bestie. 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. It's 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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👑 Author 👑

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

Definition at line 149 of file ddrvsy_aa.f.

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⭐ Author ⭐

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