DDRVPT(3)

💅 NAME 💅

okay so bestie, welcome to the Library Functions Manual page for /home/abui...IN/ddrvpt.f(3) — header folded in near the top like a lil name tag 🫶. The actual file this page is about is /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/ddrvpt.f 💖.

✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

subroutine DDRVPT (dotype, nn, nval, nrhs, thresh, tsterr, a, d, e, b,
    x, xact, work, rwork, nout)
    DDRVPT

okay so the synopsis is giving “there is a subroutine called DDRVPT and it has a whole stack of arguments” energy. The signature up there is the short version; the full typed version is right below, iykyk 🌈.

🧸 Function/Subroutine Documentation 🧸

Here’s the full signature, character for character, because we do not play about types:

subroutine DDRVPT (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, integer nrhs, double precision thresh, logical
    tsterr, double precision, dimension( * ) a, double precision, dimension(
    * ) d, double precision, dimension( * ) e, double precision, dimension(
    * ) b, double precision, dimension( * ) x, double precision, dimension(
    * ) xact, double precision, dimension( * ) work, double precision,
    dimension( * ) rwork, integer nout)
    DDRVPT

🎯 Purpose 🎯

Source comment, untouched:

!>
!> DDRVPT tests DPTSV and -SVX.
!>

Translation: DDRVPT tests DPTSV and -SVX. That’s the purpose, periodt 💅.

🍓 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 — 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 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 — A is DOUBLE PRECISION array, dimension (NMAX*2).
• D — D is DOUBLE PRECISION array, dimension (NMAX*2).
• E — E is DOUBLE PRECISION array, dimension (NMAX*2).
• 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(3,NRHS)).
• RWORK — RWORK is DOUBLE PRECISION array, dimension (max(NMAX,2*NRHS)).
• 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 138 of file ddrvpt.f.

🦋 Author 🦋

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xoxo, LAPACK Version 3.12.0 💖 — footer source vibe: /home/abui...IN/ddrvpt.f(3) ✨