TESTING/LIN/cdrvls.f(3) Library Functions Manual TESTING/LIN/cdrvls.f(3) NAME TESTING/LIN/cdrvls.f SYNOPSIS Functions/Subroutines subroutine cdrvls (dotype, nm, mval, nn, nval, nns, nsval, nnb, nbval, nxval, thresh, tsterr, a, copya, b, copyb, c, s, copys, nout) CDRVLS Function/Subroutine Documentation subroutine cdrvls (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, complex, dimension( * ) a, complex, dimension( * ) copya, complex, dimension( * ) b, complex, dimension( * ) copyb, complex, dimension( * ) c, real, dimension( * ) s, real, dimension( * ) copys, integer nout) CDRVLS Purpose: CDRVLS tests the least squares driver routines CGELS, CGELST, CGETSLS, CGELSS, CGELSY and CGELSD. 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 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 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 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. 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 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 COMPLEX 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 array, dimension (MMAX*NMAX) B B is COMPLEX 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 array, dimension (MMAX*NSMAX) C C is COMPLEX 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 190 of file cdrvls.f. Author Generated automatically by Doxygen for LAPACK from the source code. LAPACK Version 3.12.0 TESTING/LIN/cdrvls.f(3)