TESTING/LIN/sdrvgb.f(3)

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version 3.12.1 · 2 versions
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✨ NAME ✨

TESTING/LIN/sdrvgb.f — okay bestie, this is the page from the Library Functions Manual, and it's all about the SDRVGB test-driver vibes. Main character energy, no cap. 💅

🌸 SYNOPSIS 🌸

Functions/Subroutines

  • subroutine sdrvgb (dotype, nn, nval, nrhs, thresh, tsterr, a, la, afb, lafb, asav, b, bsav, x, xact, s, work, rwork, iwork, nout) — SDRVGB, literally the icon of this page. 👑

🎀 Function/Subroutine Documentation 🎀

Here's the full signature, copy-paste safe, exactly as it appears:

subroutine sdrvgb (logical, dimension( * ) dotype, integer nn, integer,
     dimension( * ) nval, integer nrhs, real thresh, logical tsterr, real,
     dimension( * ) a, integer la, real, dimension( * ) afb, integer lafb,
     real, dimension( * ) asav, real, dimension( * ) b, real, dimension( * )
     bsav, real, dimension( * ) x, real, dimension( * ) xact, real,
     dimension( * ) s, real, dimension( * ) work, real, dimension( * ) rwork,
     integer, dimension( * ) iwork, integer nout)

SDRVGB — yes, that's the name, and it ate. 💖

Purpose:

SDRVGB tests the driver routines SGBSV and -SVX. That's the assignment, bestie. 🫶

Parameters

  • DOTYPE — DOTYPE is a LOGICAL array with dimension (NTYPES). These are 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; it's the number of values of N contained in the vector NVAL. ✨
  • NVAL — NVAL is an INTEGER array with dimension (NN); these are the values of the matrix column dimension N. 🌸
  • NRHS — NRHS is INTEGER; it's the number of right hand side vectors to be generated for each linear system. 💫
  • THRESH — THRESH is REAL; it's 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; it's a flag that indicates whether error exits are to be tested. 🦋
  • A — A is a REAL array with dimension (LA). 🧚
  • LA — LA is INTEGER; it's the length of the array A. And the constraint is real: LA >= (2*NMAX-1)*NMAX, where NMAX is the largest entry in NVAL. 💅
  • AFB — AFB is a REAL array with dimension (LAFB). 🌈
  • LAFB — LAFB is INTEGER; it's the length of the array AFB. Constraint check: LAFB >= (3*NMAX-2)*NMAX, where NMAX is the largest entry in NVAL. 👑
  • ASAV — ASAV is a REAL array with dimension (LA). ⭐
  • B — B is a REAL array with dimension (NMAX*NRHS). 💜
  • BSAV — BSAV is a REAL array with dimension (NMAX*NRHS). 🍓
  • X — X is a REAL array with dimension (NMAX*NRHS). 🌸
  • XACT — XACT is a REAL array with dimension (NMAX*NRHS). ✨
  • S — S is a REAL array with dimension (2*NMAX). 🎀
  • WORK — WORK is a REAL array with dimension (NMAX*max(3,NRHS,NMAX)). 🫶
  • RWORK — RWORK is a REAL array with dimension (NMAX+2*NRHS). 💖
  • IWORK — IWORK is an INTEGER array with dimension (2*NMAX). 🌟
  • NOUT — NOUT is INTEGER; it's the unit number for output. 💌

👑 Author 👑

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

Definition at line 169 of file sdrvgb.f.

🌈 Author 🌈

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xoxo, bestie 💖 — this page is from LAPACK, Version 3.12.0, and it lives at TESTING/LIN/sdrvgb.f(3). Slay responsibly! 🫶✨

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