TESTING/LIN/zdrvls.f(3)

💖 TESTING/LIN/zdrvls.f(3) 💖

Library Functions Manual — okay bestie, welcome to the iconic page for TESTING/LIN/zdrvls.f. It’s giving “Fortran test-driver main character energy” and we’re obsessed. ✨

🎀 NAME 🎀

TESTING/LIN/zdrvls.f

✨ SYNOPSIS ✨

🧚 Functions/Subroutines 🧚

       subroutine zdrvls (dotype, nm, mval, nn, nval, nns, nsval, nnb, nbval,
           nxval, thresh, tsterr, a, copya, b, copyb, c, s, copys, nout)
           ZDRVLS

💖 Function/Subroutine Documentation 💖

   subroutine zdrvls (logical, dimension( * ) dotype, integer nm, integer,
       dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer
       nns, integer, dimension( * ) nsval, integer nnb, integer, dimension( * )
       nbval, integer, dimension( * ) nxval, double precision thresh, logical
       tsterr, complex*16, dimension( * ) a, complex*16, dimension( * ) copya,
       complex*16, dimension( * ) b, complex*16, dimension( * ) copyb,
       complex*16, dimension( * ) c, double precision, dimension( * ) s, double
       precision, dimension( * ) copys, integer nout)
       ZDRVLS

🎯 Purpose 🎯

Okay so ZDRVLS tests the least squares driver routines ZGELS, ZGELST, ZGETSLS, ZGELSS, ZGELSY and ZGELSD. That’s the whole assignment, bestie — no cap. 💅

🌸 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. The matrix of type j is generated as follows:
  • j=1 — A = U*D*V where U and V are random unitary matrices and D has random entries (> 0.1) taken from a uniform distribution (0,1). A is full rank.
  • j=2 — The same as j=1, but A is scaled up.
  • j=3 — The same as j=1, but A is scaled down.
  • j=4 — A = U*D*V where U and V are random unitary matrices and D has 3*min(M,N)/4 random entries (> 0.1) taken from a uniform distribution (0,1) and the remaining entries set to 0. A is rank-deficient.
  • j=5 — The same as j=4, but A is scaled up.
  • j=6 — The same as j=5, but A is scaled down.
• 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.
• 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 column dimension N.
• NNB — NNB is INTEGER. The number of values of NB and NX contained in the vectors NBVAL and NXVAL. The blocking parameters are used in pairs (NB,NX).
• NBVAL — NBVAL is INTEGER array, dimension (NNB). The values of the blocksize NB.
• NXVAL — NXVAL is INTEGER array, dimension (NNB). The values of the crossover point NX.
• NNS — NNS is INTEGER. The number of values of NRHS contained in the vector NSVAL.
• NSVAL — NSVAL is INTEGER array, dimension (NNS). The values of the number of right hand sides NRHS.
• 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.
• A — A is COMPLEX*16 array, dimension (MMAX*NMAX) where MMAX is the maximum value of M in MVAL and NMAX is the maximum value of N in NVAL.
• COPYA — COPYA is COMPLEX*16 array, dimension (MMAX*NMAX).
• B — B is COMPLEX*16 array, dimension (MMAX*NSMAX) where MMAX is the maximum value of M in MVAL and NSMAX is the maximum value of NRHS in NSVAL.
• COPYB — COPYB is COMPLEX*16 array, dimension (MMAX*NSMAX).
• C — C is COMPLEX*16 array, dimension (MMAX*NSMAX).
• S — S is DOUBLE PRECISION array, dimension (min(MMAX,NMAX)).
• COPYS — COPYS is DOUBLE PRECISION array, dimension (min(MMAX,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 189 of file zdrvls.f.

🌟 Author 🌟

Generated automatically by Doxygen for LAPACK from the source code.

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