TESTING/LIN/sdrvge.f(3)

💖 NAME 💖

okay bestie, meet the star of this page: TESTING/LIN/sdrvge.f. It’s from the Library Functions Manual, and it’s giving “I test linear systems and I know it” energy. 💅

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✨ SYNOPSIS ✨

💫 Functions/Subroutines 💫

       subroutine sdrvge (dotype, nn, nval, nrhs, thresh, tsterr, nmax, a,
           afac, asav, b, bsav, x, xact, s, work, rwork, iwork, nout)
           SDRVGE

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🌈 Function/Subroutine Documentation 🌈

here’s the full signature again, because the docs are thorough like that:

   subroutine sdrvge (logical, dimension( * ) dotype, integer nn, integer,
       dimension( * ) nval, integer nrhs, real thresh, logical tsterr, integer
       nmax, real, dimension( * ) a, real, dimension( * ) afac, 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)
       SDRVGE

🎯 Purpose 🎯

the source says, Doxygen markers and all:

           !>
           !> SDRVGE tests the driver routines SGESV and -SVX.
           !>

🎀 Parameters 🎀

tiny heads-up: the original wraps every parameter description in Doxygen !> comment lines. I’m keeping the actual tea below, okay? 💖

• DOTYPE — 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 — INTEGER. The number of values of N contained in the vector NVAL.
• NVAL — INTEGER array, dimension (NN). The values of the matrix column dimension N.
• NRHS — INTEGER. The number of right hand side vectors to be generated for each linear system.
• THRESH — 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 — LOGICAL. Flag that indicates whether error exits are to be tested.
• NMAX — INTEGER. The maximum value permitted for N, used in dimensioning the work arrays.
• A — REAL array, dimension (NMAX*NMAX).
• AFAC — REAL array, dimension (NMAX*NMAX).
• ASAV — REAL array, dimension (NMAX*NMAX).
• B — REAL array, dimension (NMAX*NRHS).
• BSAV — REAL array, dimension (NMAX*NRHS).
• X — REAL array, dimension (NMAX*NRHS).
• XACT — REAL array, dimension (NMAX*NRHS).
• S — REAL array, dimension (2*NMAX).
• WORK — REAL array, dimension (NMAX*max(3,NRHS)).
• RWORK — REAL array, dimension (2*NRHS+NMAX).
• IWORK — INTEGER array, dimension (2*NMAX).
• NOUT — INTEGER. The unit number for output.

👑 Author 👑

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

Definition at line 161 of file sdrvge.f.

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🦋 Author 🦋

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