ZCHKPS(3)

🌸 ZCHKPS(3) — the zchkps.f era 🌸

okay so real talk: this page lives in the Library Functions Manual (that's the manual name, bestie, it's not a section number situation), and the whole thing is one Fortran file doing its little LAPACK thing. buckle up 🎀

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✨ NAME ✨

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

yep. that's the name. it's just the path. no cute one-liner, no "zchkps — test ZPSTRF", literally just the file path, and honestly? iconic of it 💅

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🦋 SYNOPSIS 🦋

Functions/Subroutines

subroutine ZCHKPS (dotype, nn, nval, nnb, nbval, nrank, rankval, thresh,
    tsterr, nmax, a, afac, perm, piv, work, rwork, nout)

ZCHKPS — that's it, that's the synopsis. she contains multitudes 🫶

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👑 Function/Subroutine Documentation 👑

subroutine ZCHKPS (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer
    nrank, integer, dimension( * ) rankval, double precision thresh, logical
    tsterr, integer nmax, complex*16, dimension( * ) a, complex*16,
    dimension( * ) afac, complex*16, dimension( * ) perm, integer,
    dimension( * ) piv, complex*16, dimension( * ) work, double precision,
    dimension( * ) rwork, integer nout)

ZCHKPS — again. she said it twice because she means it ✨

💖 Purpose 💖

!> !> ZCHKPS tests ZPSTRF. !>

that's the entire purpose, no cap. ZCHKPS tests ZPSTRF. short, sweet, main character energy 🌟

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🎀 Parameters 🎀

okay this is the part where we go one by one, and I'm not skipping a single one, bestie, we're doing all of them 🍓

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). it's 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. so it's a little yes/no list of which vibes we're testing 💅
• NN — NN is INTEGER. it's the number of values of N contained in the vector NVAL. like, how many Ns are we running 🦋
• NVAL — NVAL is INTEGER array, dimension (NN). the values of the matrix dimension N. these are the actual Ns ✨
• NNB — NNB is INTEGER. the number of values of NB contained in the vector NBVAL. count 'em 🌸
• NBVAL — NBVAL is INTEGER array, dimension (NNB). the values of the block size NB. block size era 🔥
• NRANK — NRANK is INTEGER. the number of values of RANK contained in the vector RANKVAL. yes it's rank this time, keep up 🫶
• RANKVAL — RANKVAL is INTEGER array, dimension (NBVAL). and the doc here says "the values of the block size NB" — which, bestie, I'm just the messenger 😭 the page says what the page says, I am NOT editing the manpage, that's above my pay grade 💀
• 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. so if you want the full firehose, set it to zero and let her cook 🔥
• TSTERR — TSTERR is LOGICAL. flag that indicates whether error exits are to be tested. on/off, yes/no, the whole situation 🙈
• NMAX — NMAX is INTEGER. the maximum value permitted for N, used in dimensioning the work arrays. she's the ceiling, she's the blueprint 👑
• A — A is COMPLEX*16 array, dimension (NMAX*NMAX). big girl array 🌈
• AFAC — AFAC is COMPLEX*16 array, dimension (NMAX*NMAX). another big girl array 🌸
• PERM — PERM is COMPLEX*16 array, dimension (NMAX*NMAX). third big girl array, we love consistency ✨
• PIV — PIV is INTEGER array, dimension (NMAX). ints, not complexes, she's different 💜
• WORK — WORK is COMPLEX*16 array, dimension (NMAX*3). the workspace, doing the actual labour 💅
• RWORK — RWORK is DOUBLE PRECISION array, dimension (NMAX). the real one (literally) 🎀
• NOUT — NOUT is INTEGER. the unit number for output. where the results go to be seen 🦋

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⭐ Author ⭐

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

four whole institutions, all credited, all ate 🫶

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🌟 Definition at line 151 of file zchkps.f. 🌟

that's right, line 151, not 150, not 152, we do not round 🎯

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💫 Author 💫

Generated automatically by Doxygen for LAPACK from the source code.

so nobody wrote this page, a robot did, and the robot slayed a little bit 🤖✨

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okay that's the whole page, every last parameter, every dimension, every !> comment, all of it. go test ZPSTRF, bestie, and remember: THRESH = 0 if you want to see everything 💖

mwah 💋 — this has been LAPACK, Version 3.12.0, brought to you from /home/abui...IN/zchkps.f(3), and it's a whole era. periodt. 🎀