TESTING/LIN/schkqr.f(3)

🎀 TESTING/LIN/schkqr.f(3) 🎀

from the Library Functions Manual — manual name folded in near the top instead of copied as a header line, because we're cute like that. 💅 This page is all about schkqr, and bestie, it is very LAPACK test-routine coded. ✨

🌸 NAME 🌸

TESTING/LIN/schkqr.f

✨ 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

💫 Function/Subroutine Documentation 💫

Here's the full signature, copied exactly because we do not mess with code, bestie 🫶:

   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. That's the whole mission statement, and it ate. 🔥

🧚 Parameters 🧚

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). This is the matrix-types menu 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. It's giving "size limit, but make it dimensioning." 💀
• 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. 🖨️

🫶 Author 🫶

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

Definition at line 198 of file schkqr.f.

🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code.

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okay that's the whole page, bestie 💖 — cute little sign-off from the footer: LAPACK, Version 3.12.0, page TESTING/LIN/schkqr.f(3). Byeee, go test those SGEQRF, SORGQR, and SORMQR routines! 🎀✨