SCHKQR(3)

✨ SCHKQR(3) — schkqr.f test-driver energy 💅

okay so this is SCHKQR(3) from the Library Functions Manual, and bestie, it is literally the test-driver page for schkqr.f. The vibe is very “I check the QR routines so you don’t have to,” and we are going to keep every single detail. no cap. 🫶

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🎀 NAME 🎀

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

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✨ SYNOPSIS ✨

🫶 Functions/Subroutines 🫶

subroutine SCHKQR (dotype, nm, mval, nn, nval, nnb, nbval, nxval, nrhs,
    thresh, tsterr, nmax, a, af, aq, ar, ac, b, x, xact, tau, work,
    rwork, iwork, nout)
    SCHKQR

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🌈 Function/Subroutine Documentation 🌈

👑 subroutine SCHKQR 👑

subroutine SCHKQR (logical, dimension( * ) dotype, integer nm, integer,
    dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer
    nnb, integer, dimension( * ) nbval, integer, dimension( * ) nxval,
    integer nrhs, real thresh, logical tsterr, integer nmax, real,
    dimension( * ) a, real, dimension( * ) af, real, dimension( * ) aq,
    real, dimension( * ) ar, real, dimension( * ) ac, real, dimension( * )
    b, real, dimension( * ) x, real, dimension( * ) xact, real, dimension( *
    ) tau, real, dimension( * ) work, real, dimension( * ) rwork, integer,
    dimension( * ) iwork, integer nout)
    SCHKQR

🌸 Purpose 🌸

!>
!> SCHKQR tests SGEQRF, SORGQR and SORMQR.
!>

like, that’s the whole assignment: test SGEQRF, SORGQR, and SORMQR. iconic. 💖

💖 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.
• NM — NM is INTEGER. The number of values of M contained in the vector MVAL.
• MVAL — MVAL is INTEGER array, dimension (NM). The values of the matrix row dimension M.
• 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 column dimension N.
• NNB — NNB is INTEGER. The number of values of NB and NX contained in the vectors NBVAL and NXVAL. The blocking parameters are used in pairs (NB,NX).
• NBVAL — NBVAL is INTEGER array, dimension (NNB). The values of the blocksize NB.
• NXVAL — NXVAL is INTEGER array, dimension (NNB). The values of the crossover point NX.
• NRHS — NRHS is INTEGER. The number of right hand side vectors to be generated for each linear system.
• THRESH — THRESH is REAL. 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 M or N, used in dimensioning the work arrays.
• A — A is REAL array, dimension (NMAX*NMAX).
• AF — AF is REAL array, dimension (NMAX*NMAX).
• AQ — AQ is REAL array, dimension (NMAX*NMAX).
• AR — AR is REAL array, dimension (NMAX*NMAX).
• AC — AC is REAL array, dimension (NMAX*NMAX).
• B — B is REAL array, dimension (NMAX*NRHS).
• X — X is REAL array, dimension (NMAX*NRHS).
• XACT — XACT is REAL array, dimension (NMAX*NRHS).
• TAU — TAU is REAL array, dimension (NMAX).
• WORK — WORK is REAL array, dimension (NMAX*NMAX).
• RWORK — RWORK is REAL array, dimension (NMAX).
• IWORK — IWORK is INTEGER array, dimension (NMAX).
• NOUT — NOUT is INTEGER. The unit number for output.

bestie, the array dimensions are literally giving NMAX, NMAX*NMAX, and NMAX*NRHS energy — keep those sizes in mind. 🫶

🫶 Author 🫶

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

Definition at line 198 of file schkqr.f.

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💅 Author 💅

Generated automatically by Doxygen for LAPACK from the source code.

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xoxo, your LAPACK Version 3.12.0 bestie — source file: /home/abui...IN/schkqr.f(3) 💖✨