DCKGSV(3)

💖 DCKGSV(3) — Library Functions Manual 💖

okay so bestie, this is the dckgsv.f(3) page from the Library Functions Manual — the header path shows up as /home/abui...IG/dckgsv.f(3), and the whole vibe is LAPACK testing energy. We’re gonna go through every single arg, no skipping, no cap. 🫶

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🌸 NAME 🌸

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/EIG/dckgsv.f

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✨ SYNOPSIS ✨

Functions/Subroutines

       subroutine DCKGSV (nm, mval, pval, nval, nmats, iseed, thresh, nmax, a,
           af, b, bf, u, v, q, alpha, beta, r, iwork, work, rwork, nin, nout,
           info)
           DCKGSV

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💅 Function/Subroutine Documentation 💅

   subroutine DCKGSV (integer nm, integer, dimension( * ) mval, integer,
       dimension( * ) pval, integer, dimension( * ) nval, integer nmats,
       integer, dimension( 4 ) iseed, double precision thresh, integer nmax,
       double precision, dimension( * ) a, double precision, dimension( * ) af,
       double precision, dimension( * ) b, double precision, dimension( * ) bf,
       double precision, dimension( * ) u, double precision, dimension( * ) v,
       double precision, dimension( * ) q, double precision, dimension( * )
       alpha, double precision, dimension( * ) beta, double precision,
       dimension( * ) r, integer, dimension( * ) iwork, double precision,
       dimension( * ) work, double precision, dimension( * ) rwork, integer
       nin, integer nout, integer info)
       DCKGSV

🎀 Purpose 🎀

DCKGSV tests DGGSVD: the GSVD for M-by-N matrix A and P-by-N matrix B.

🌈 Parameters 🌈

• 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.
• PVAL — PVAL is INTEGER array, dimension (NP). The values of the matrix row dimension P.
• NVAL — NVAL is INTEGER array, dimension (NN). The values of the matrix column dimension N.
• NMATS — NMATS is INTEGER. The number of matrix types to be tested for each combination of matrix dimensions. If NMATS >= NTYPES (the maximum number of matrix types), then all the different types are generated for testing. If NMATS < NTYPES, another input line is read to get the numbers of the matrix types to be used.
• ISEED — ISEED is INTEGER array, dimension (4). On entry, the seed of the random number generator. The array elements should be between 0 and 4095, otherwise they will be reduced mod 4096, and ISEED(4) must be odd. On exit, the next seed in the random number sequence after all the test matrices have been generated.
• 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.
• NMAX — NMAX is INTEGER. The maximum value permitted for M or N, used in dimensioning the work arrays.
• A — A is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AF — AF is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — B is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• BF — BF is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• U — U is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• V — V is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• Q — Q is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• ALPHA — ALPHA is DOUBLE PRECISION array, dimension (NMAX).
• BETA — BETA is DOUBLE PRECISION array, dimension (NMAX).
• R — R is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• IWORK — IWORK is INTEGER array, dimension (NMAX).
• WORK — WORK is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• RWORK — RWORK is DOUBLE PRECISION array, dimension (NMAX).
• NIN — NIN is INTEGER. The unit number for input.
• NOUT — NOUT is INTEGER. The unit number for output.
• INFO — INFO is INTEGER.
  • = 0 : successful exit
  • > 0 : If DLATMS returns an error code, the absolute value of it is returned.

🧚 Author 🧚

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

Definition at line 195 of file dckgsv.f.

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🧚 Author 🧚

Generated automatically by Doxygen for LAPACK from the source code.

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that’s the whole page, bestie 🫶 — the footer is LAPACK Version 3.12.0 with /home/abui...IG/dckgsv.f(3) (no date shown in the original footer, just that version/path combo ✨). bye 😘