TESTING/LIN/cchkqr.f(3)

okay so this is TESTING/LIN/cchkqr.f(3) from the Library Functions Manual — buckle up, bestie, we’re about to read a test-driver manpage and honestly? it’s lowkey iconic 🎀

🌸 NAME 🌸

TESTING/LIN/cchkqr.f — periodt. This is the CCHKQR page and it’s giving “test driver who knows exactly what she’s doing” energy. 💅

✨ SYNOPSIS ✨

Functions/Subroutines

       subroutine cchkqr (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)
           CCHKQR

okay so that’s the whole call: subroutine cchkqr with all those args, and then CCHKQR is printed underneath like a little signature. Slay. 💖

💅 Function/Subroutine Documentation 💅

subroutine cchkqr

   subroutine cchkqr (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, complex,
       dimension( * ) a, complex, dimension( * ) af, complex, dimension( * )
       aq, complex, dimension( * ) ar, complex, dimension( * ) ac, complex,
       dimension( * ) b, complex, dimension( * ) x, complex, dimension( * )
       xact, complex, dimension( * ) tau, complex, dimension( * ) work, real,
       dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)
       CCHKQR

That’s the full typed-out signature, bestie — every dimension( * ) is exactly where it belongs. No cap. 🫶

🦋 Purpose 🦋

CCHKQR tests CGEQRF, CUNGQR and CUNMQR. That’s it. That’s the purpose. It’s a test routine and it’s literally doing the most in the best way. ✨

🎀 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 COMPLEX array, dimension (NMAX*NMAX).
• AF — AF is COMPLEX array, dimension (NMAX*NMAX).
• AQ — AQ is COMPLEX array, dimension (NMAX*NMAX).
• AR — AR is COMPLEX array, dimension (NMAX*NMAX).
• AC — AC is COMPLEX array, dimension (NMAX*NMAX).
• B — B is COMPLEX array, dimension (NMAX*NRHS).
• X — X is COMPLEX array, dimension (NMAX*NRHS).
• XACT — XACT is COMPLEX array, dimension (NMAX*NRHS).
• TAU — TAU is COMPLEX array, dimension (NMAX).
• WORK — WORK is COMPLEX 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.

👑 Author 👑

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

💖 obsessed with a credited author list, honestly.

Definition at line 198 of file cchkqr.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

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💖 cute sign-off: this page is from LAPACK Version 3.12.0, TESTING/LIN/cchkqr.f(3). The footer’s date slot is empty — no date printed here, bestie — so that’s the whole footer vibe. Byeee! ✨👑