DDRVSY_AA_2STAGE(3)

💅 DDRVSY_AA_2STAGE(3) — LAPACK Library Functions Manual 💅

okay bestie, we are so back in the LAPACK testing folder. This page is for DDRVSY_AA_2STAGE, and the manual name is literally LAPACK Library Functions Manual. No cap, we're about to vibe-check the Fortran subroutine docs. 🧚✨

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🌸 NAME 🌸

The NAME section is giving source-file-path realness: /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/ddrvsy_aa_2stage.f.

That's it. That's the name. Iconic. 🎀

✨ SYNOPSIS ✨

🦋 Functions/Subroutines 🦋

       subroutine DDRVSY_AA_2STAGE (dotype, nn, nval, nrhs, thresh, tsterr,
           nmax, a, afac, ainv, b, x, xact, work, rwork, iwork, nout)
           DDRVSY_AA_2STAGE

🦋 Function/Subroutine Documentation 🦋

Here's the full signature, copied exactly so nobody comes for us in the group chat:

   subroutine DDRVSY_AA_2STAGE (logical, dimension( * ) dotype, integer nn,
       integer, dimension( * ) nval, integer nrhs, double precision thresh,
       logical tsterr, integer nmax, double precision, dimension( * ) a, double
       precision, dimension( * ) afac, double precision, dimension( * ) ainv,
       double precision, dimension( * ) b, double precision, dimension( * ) x,
       double precision, dimension( * ) xact, double precision, dimension( * )
       work, double precision, dimension( * ) rwork, integer, dimension( * )
       iwork, integer nout)
       DDRVSY_AA_2STAGE

🎀 Purpose 🎀

The source doc says, literally: DDRVSY_AA_2STAGE tests the driver routine DSYSV_AA_2STAGE.

So yeah — it's the tester for that driver routine. Main character energy for a test routine, honestly. ✅

💜 Parameters 💜

• DOTYPE — 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 — 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 dimension N. 🦋
• NRHS — NRHS is INTEGER. The number of right hand side vectors to be generated for each linear system. 💜
• 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. 🔥
• TSTERR — TSTERR is LOGICAL. Flag that indicates whether error exits are to be tested. 🙈
• NMAX — NMAX is INTEGER. The maximum value permitted for N, used in dimensioning the work arrays. 👑
• A — A is DOUBLE PRECISION array, dimension (NMAX*NMAX). 🌈
• AFAC — AFAC is DOUBLE PRECISION array, dimension (NMAX*NMAX). ⭐
• AINV — AINV is DOUBLE PRECISION array, dimension (NMAX*NMAX). 💫
• B — B is DOUBLE PRECISION array, dimension (NMAX*NRHS). 🍓
• X — X is DOUBLE PRECISION array, dimension (NMAX*NRHS). 🌸
• XACT — XACT is DOUBLE PRECISION array, dimension (NMAX*NRHS). 🧚
• WORK — WORK is DOUBLE PRECISION array, dimension (NMAX*max(2,NRHS)). 💅
• RWORK — RWORK is DOUBLE PRECISION array, dimension (NMAX+2*NRHS). 🫶
• 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 151 of file ddrvsy_aa_2stage.f.

🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code.

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💖 Cute sign-off, bestie: this page is LAPACK, Version 3.12.0, from /home/abui...aa_2stage.f(3). Mwah! 💖