TESTING/LI...a_2stage.f(3)

💅 TESTING/LI...a_2stage.f 💅

okay so this is a Library Functions Manual page, and it's giving "LAPACK testing routine that wants to be understood." Bestie, we're gonna get through it together, no cap. 🫶

✨ NAME ✨

TESTING/LIN/ddrvsy_aa_2stage.f — that's the file, that's the name, iconic. 💖

✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

subroutine ddrvsy_aa_2stage (dotype, nn, nval, nrhs, thresh, tsterr,
           nmax, a, afac, ainv, b, x, xact, work, rwork, iwork, nout)

DDRVSY_AA_2STAGE — yes, the name is a whole mouthful, but she ate. 💅

💖 Function/Subroutine Documentation 💖

   subroutine ddrvsy_aa_2stage (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_2STAGE — like, that's the subroutine, full signature, exact, and we are obsessed. ✨

🌸 Purpose 🌸

okay so the purpose is short and sweet: DDRVSY_AA_2STAGE tests the driver routine DSYSV_AA_2STAGE. That's the whole assignment. Main character energy: testing. 🧚

🦋 Parameters 🦋

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). These are 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. Periodt. ✅
• NN — NN is INTEGER. It's the number of values of N contained in the vector NVAL.
• NVAL — NVAL is INTEGER array, dimension (NN). These are 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 (NMAX).
• NOUT — NOUT is INTEGER. The unit number for output.

okay bestie, quick vibe check: every array dimension above is exactly what the manual says, so don't come for me about the math. 😭💖

👑 Author 👑

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

Definition at line 151 of file ddrvsy_aa_2stage.f. 📌

🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code. That's the generated-by line, preserved and cute. 🎀

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Final footer sign-off, straight from the last line: LAPACK — Version 3.12.0 — TESTING/LI...a_2stage.f(3). That's the source/version + page label combo, cute and exact. 💋✨