SDRVLS(3)

💖 NAME 💖

Okay bestie, this page is sdrvls.f(3) from the Library Functions Manual. The source file it points at is:

/home/abuild/rpmbuild/BUILD/lapack-
static-3.12.0-build/lapack-3.12.0/TESTING/LIN/sdrvls.f

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✨ SYNOPSIS ✨

Functions/Subroutines

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

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🎀 Function/Subroutine Documentation 🎀

   subroutine SDRVLS (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, real thresh, logical tsterr, real,
       dimension( * ) a, real, dimension( * ) copya, real, dimension( * ) b,
       real, dimension( * ) copyb, real, dimension( * ) c, real, dimension( * )
       s, real, dimension( * ) copys, integer nout)
       SDRVLS

Purpose

SDRVLS tests the least squares driver routines SGELS, SGELST, SGETSLS, SGELSS, SGELSY and SGELSD. That’s the whole purpose, no cap. 💅

Parameters

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). These are the matrix types 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 orthogonal matrices and D has random entries (> 0.1) taken from a uniform distribution (0,1). A is full rank.
  • j=2: The same of 1, but A is scaled up.
  • j=3: The same of 1, but A is scaled down.
  • j=4: A = U*D*V where U and V are random orthogonal 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 of 4, but A is scaled up.
  • j=6: The same of 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.
• 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.
• 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.
• THRESH — THRESH is 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 — TSTERR is LOGICAL. Flag that indicates whether error exits are to be tested.
• A — A is REAL 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 REAL array, dimension (MMAX*NMAX).
• B — B is REAL 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 REAL array, dimension (MMAX*NSMAX).
• C — C is REAL array, dimension (MMAX*NSMAX).
• S — S is REAL array, dimension (min(MMAX,NMAX)).
• COPYS — COPYS is REAL 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 sdrvls.f.

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👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code.

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Okay bestie, that’s the whole page 💖 This one is LAPACK Version 3.12.0, source /home/abui...IN/sdrvls.f(3). Slay responsibly. ✨