SCHKPO(3)

💅 SCHKPO(3) — Library Functions Manual 🎀

okay bestie, so this page lives in the Library Functions Manual and honestly? it's a whole vibe. the file at the center of it all is:

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

that's the name, that's the path, no notes. 🫶

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✨ SYNOPSIS ✨

Functions/Subroutines

subroutine SCHKPO (dotype, nn, nval, nnb, nbval, nns, nsval, thresh,
    tsterr, nmax, a, afac, ainv, b, x, xact, work, rwork, iwork, nout)

SCHKPO — that's the icon, that's the main character. 👑

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🌸 Function/Subroutine Documentation 🌸

subroutine SCHKPO (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer
    nns, integer, dimension( * ) nsval, real thresh, logical tsterr, integer
    nmax, real, dimension( * ) a, real, dimension( * ) afac, real,
    dimension( * ) ainv, real, dimension( * ) b, real, dimension( * ) x,
    real, dimension( * ) xact, real, dimension( * ) work, real, dimension( *
    ) rwork, integer, dimension( * ) iwork, integer nout)

SCHKPO

💖 Purpose: 💖

SCHKPO tests SPOTRF, -TRI, -TRS, -RFS, and -CON

like, that's literally the whole job. it pulls up on all of them and puts them through it. ✨

🦋 Parameters 🦋

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). the matrix types to be used for testing, bestie. matrices of type j (for 1 <= j <= NTYPES) get tested if DOTYPE(j) = .TRUE.; and if DOTYPE(j) = .FALSE., then type j is soooo not invited to the test. 🙈
• NN — NN is INTEGER. it's the number of values of N chillin' inside the vector NVAL.
• NVAL — NVAL is INTEGER array, dimension (NN). these are the values of the matrix dimension N. 💅
• NNB — NNB is INTEGER. the number of values of NB contained in the vector NBVAL.
• NBVAL — NBVAL is INTEGER array, dimension (NNB). the values of the blocksize NB.
• NNS — NNS is INTEGER. the number of values of NRHS contained in the vector NSVAL.
• NSVAL — NSVAL is INTEGER array, dimension (NNS). the values of the number of right hand sides NRHS. 🍓
• THRESH — THRESH is REAL. it's the threshold value for the test ratios, and here's the tea: a result gets included in the output file if RESULT >= THRESH. and if you want every test ratio printed? use THRESH = 0. periodt.
• TSTERR — TSTERR is LOGICAL. flag that says whether error exits are gonna be tested or not. 🚩
• NMAX — NMAX is INTEGER. the maximum value permitted for N, used in dimensioning the work arrays. it's giving background character with a very important job.
• A — A is REAL array, dimension (NMAX*NMAX).
• AFAC — AFAC is REAL array, dimension (NMAX*NMAX).
• AINV — AINV is REAL array, dimension (NMAX*NMAX).
• B — B is REAL array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL. 👀
• X — X is REAL array, dimension (NMAX*NSMAX).
• XACT — XACT is REAL array, dimension (NMAX*NSMAX).
• WORK — WORK is REAL array, dimension (NMAX*max(3,NSMAX)). lowkey the hardest working array here ngl.
• RWORK — RWORK is REAL array, dimension (max(NMAX,2*NSMAX)).
• IWORK — IWORK is INTEGER array, dimension (NMAX).
• NOUT — NOUT is INTEGER. the unit number for output. 📤

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👑 Author 👑

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

Definition at line 169 of file schkpo.f. 🔥

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⭐ Author (again, yes really) ⭐

Generated automatically by Doxygen for LAPACK from the source code. it's giving autogenerated excellence, no cap. 🧚

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aaaand that's the page, bestie 💜 — brought to you by LAPACK, Version 3.12.0, signed off from /home/abui...IN/schkpo.f(3). mwah, go test those routines, slay. 💅✨🎀