SCHKSP(3)

🌸 NAME 🌸

Okay bestie, welcome to the Library Functions Manual page for SCHKSP. This one is filed under /home/abui...IN/schksp.f(3), and the actual source path in the NAME line is /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/schksp.f. That’s the whole NAME section, no cap 💅.

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✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

Here’s the synopsis signature, exactly as the page lays it out:

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

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💅 Function/Subroutine Documentation 💅

The full documented signature is long, iconic, and not to be abbreviated. Do not lose a character, bestie:

subroutine SCHKSP (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, 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)
    SCHKSP

Then the page repeats SCHKSP. Yes, again. Main character energy ✨.

Purpose

SCHKSP tests SSPTRF, -TRI, -TRS, -RFS, and -CON. That’s the whole purpose vibe 🫶.

Parameters

Parameter by parameter, no skipping the “boring” ones — they’re all important:

• 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.
• NN — is INTEGER. The number of values of N contained in the vector NVAL.
• NVAL — is INTEGER array, dimension (NN). The values of the matrix dimension N.
• NNS — is INTEGER. The number of values of NRHS contained in the vector NSVAL.
• NSVAL — is INTEGER array, dimension (NNS). The values of the number of right hand sides NRHS.
• 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 — is LOGICAL. Flag that indicates whether error exits are to be tested.
• NMAX — is INTEGER. The maximum value permitted for N, used in dimensioning the work arrays.
• A — is REAL array, dimension (NMAX*(NMAX+1)/2).
• AFAC — is REAL array, dimension (NMAX*(NMAX+1)/2).
• AINV — is REAL array, dimension (NMAX*(NMAX+1)/2).
• B — is REAL array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL.
• X — is REAL array, dimension (NMAX*NSMAX).
• XACT — is REAL array, dimension (NMAX*NSMAX).
• WORK — is REAL array, dimension (NMAX*max(2,NSMAX)).
• RWORK — is REAL array, dimension (NMAX+2*NSMAX).
• IWORK — is INTEGER array, dimension (2*NMAX).
• NOUT — is INTEGER. The unit number for output.

Author

Shoutout to the author squad:

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

Definition at line 160 of file schksp.f.

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🌈 Author 🌈

This next Author bit is the auto-gen receipt:

Generated automatically by Doxygen for LAPACK from the source code.

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LAPACK · Version 3.12.0 · /home/abui...IN/schksp.f(3) — that’s the footer, bestie, auto-generated and still slaying 🫶✨