## table of contents

complex16_eig(3) | LAPACK | complex16_eig(3) |

# NAME¶

complex16_eig - complex16

# SYNOPSIS¶

## Functions¶

program **zchkee**

**ZCHKEE**

# Detailed Description¶

This is the group of complex16 LAPACK TESTING EIG routines.

# Function Documentation¶

## program zchkee¶

**ZCHKEE**

**Purpose:**

ZCHKEE tests the COMPLEX*16 LAPACK subroutines for the matrix

eigenvalue problem. The test paths in this version are

NEP (Nonsymmetric Eigenvalue Problem):

Test ZGEHRD, ZUNGHR, ZHSEQR, ZTREVC, ZHSEIN, and ZUNMHR

SEP (Hermitian Eigenvalue Problem):

Test ZHETRD, ZUNGTR, ZSTEQR, ZSTERF, ZSTEIN, ZSTEDC,

and drivers ZHEEV(X), ZHBEV(X), ZHPEV(X),

ZHEEVD, ZHBEVD, ZHPEVD

SVD (Singular Value Decomposition):

Test ZGEBRD, ZUNGBR, and ZBDSQR

and the drivers ZGESVD, ZGESDD

ZEV (Nonsymmetric Eigenvalue/eigenvector Driver):

Test ZGEEV

ZES (Nonsymmetric Schur form Driver):

Test ZGEES

ZVX (Nonsymmetric Eigenvalue/eigenvector Expert Driver):

Test ZGEEVX

ZSX (Nonsymmetric Schur form Expert Driver):

Test ZGEESX

ZGG (Generalized Nonsymmetric Eigenvalue Problem):

Test ZGGHD3, ZGGBAL, ZGGBAK, ZHGEQZ, and ZTGEVC

ZGS (Generalized Nonsymmetric Schur form Driver):

Test ZGGES

ZGV (Generalized Nonsymmetric Eigenvalue/eigenvector Driver):

Test ZGGEV

ZGX (Generalized Nonsymmetric Schur form Expert Driver):

Test ZGGESX

ZXV (Generalized Nonsymmetric Eigenvalue/eigenvector Expert Driver):

Test ZGGEVX

ZSG (Hermitian Generalized Eigenvalue Problem):

Test ZHEGST, ZHEGV, ZHEGVD, ZHEGVX, ZHPGST, ZHPGV, ZHPGVD,

ZHPGVX, ZHBGST, ZHBGV, ZHBGVD, and ZHBGVX

ZHB (Hermitian Band Eigenvalue Problem):

Test ZHBTRD

ZBB (Band Singular Value Decomposition):

Test ZGBBRD

ZEC (Eigencondition estimation):

Test ZTRSYL, ZTREXC, ZTRSNA, and ZTRSEN

ZBL (Balancing a general matrix)

Test ZGEBAL

ZBK (Back transformation on a balanced matrix)

Test ZGEBAK

ZGL (Balancing a matrix pair)

Test ZGGBAL

ZGK (Back transformation on a matrix pair)

Test ZGGBAK

GLM (Generalized Linear Regression Model):

Tests ZGGGLM

GQR (Generalized QR and RQ factorizations):

Tests ZGGQRF and ZGGRQF

GSV (Generalized Singular Value Decomposition):

Tests ZGGSVD, ZGGSVP, ZTGSJA, ZLAGS2, ZLAPLL, and ZLAPMT

CSD (CS decomposition):

Tests ZUNCSD

LSE (Constrained Linear Least Squares):

Tests ZGGLSE

Each test path has a different set of inputs, but the data sets for

the driver routines xEV, xES, xVX, and xSX can be concatenated in a

single input file. The first line of input should contain one of the

3-character path names in columns 1-3. The number of remaining lines

depends on what is found on the first line.

The number of matrix types used in testing is often controllable from

the input file. The number of matrix types for each path, and the

test routine that describes them, is as follows:

Path name(s) Types Test routine

ZHS or NEP 21 ZCHKHS

ZST or SEP 21 ZCHKST (routines)

18 ZDRVST (drivers)

ZBD or SVD 16 ZCHKBD (routines)

5 ZDRVBD (drivers)

ZEV 21 ZDRVEV

ZES 21 ZDRVES

ZVX 21 ZDRVVX

ZSX 21 ZDRVSX

ZGG 26 ZCHKGG (routines)

ZGS 26 ZDRGES

ZGX 5 ZDRGSX

ZGV 26 ZDRGEV

ZXV 2 ZDRGVX

ZSG 21 ZDRVSG

ZHB 15 ZCHKHB

ZBB 15 ZCHKBB

ZEC - ZCHKEC

ZBL - ZCHKBL

ZBK - ZCHKBK

ZGL - ZCHKGL

ZGK - ZCHKGK

GLM 8 ZCKGLM

GQR 8 ZCKGQR

GSV 8 ZCKGSV

CSD 3 ZCKCSD

LSE 8 ZCKLSE -----------------------------------------------------------------------

NEP input file:

line 2: NN, INTEGER

Number of values of N.

line 3: NVAL, INTEGER array, dimension (NN)

The values for the matrix dimension N.

line 4: NPARMS, INTEGER

Number of values of the parameters NB, NBMIN, NX, NS, and

MAXB.

line 5: NBVAL, INTEGER array, dimension (NPARMS)

The values for the blocksize NB.

line 6: NBMIN, INTEGER array, dimension (NPARMS)

The values for the minimum blocksize NBMIN.

line 7: NXVAL, INTEGER array, dimension (NPARMS)

The values for the crossover point NX.

line 8: INMIN, INTEGER array, dimension (NPARMS)

LAHQR vs TTQRE crossover point, >= 11

line 9: INWIN, INTEGER array, dimension (NPARMS)

recommended deflation window size

line 10: INIBL, INTEGER array, dimension (NPARMS)

nibble crossover point

line 11: ISHFTS, INTEGER array, dimension (NPARMS)

number of simultaneous shifts)

line 12: IACC22, INTEGER array, dimension (NPARMS)

select structured matrix multiply: 0, 1 or 2)

line 13: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold. To have all of the test

ratios printed, use THRESH = 0.0 .

line 14: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 14 was 2:

line 15: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 15-EOF: The remaining lines occur in sets of 1 or 2 and allow

the user to specify the matrix types. Each line contains

a 3-character path name in columns 1-3, and the number

of matrix types must be the first nonblank item in columns

4-80. If the number of matrix types is at least 1 but is

less than the maximum number of possible types, a second

line will be read to get the numbers of the matrix types to

be used. For example,

NEP 21

requests all of the matrix types for the nonsymmetric

eigenvalue problem, while

NEP 4

9 10 11 12

requests only matrices of type 9, 10, 11, and 12.

The valid 3-character path names are 'NEP' or 'ZHS' for the

nonsymmetric eigenvalue routines. -----------------------------------------------------------------------

SEP or ZSG input file:

line 2: NN, INTEGER

Number of values of N.

line 3: NVAL, INTEGER array, dimension (NN)

The values for the matrix dimension N.

line 4: NPARMS, INTEGER

Number of values of the parameters NB, NBMIN, and NX.

line 5: NBVAL, INTEGER array, dimension (NPARMS)

The values for the blocksize NB.

line 6: NBMIN, INTEGER array, dimension (NPARMS)

The values for the minimum blocksize NBMIN.

line 7: NXVAL, INTEGER array, dimension (NPARMS)

The values for the crossover point NX.

line 8: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 9: TSTCHK, LOGICAL

Flag indicating whether or not to test the LAPACK routines.

line 10: TSTDRV, LOGICAL

Flag indicating whether or not to test the driver routines.

line 11: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 12: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 12 was 2:

line 13: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 13-EOF: Lines specifying matrix types, as for NEP.

The valid 3-character path names are 'SEP' or 'ZST' for the

Hermitian eigenvalue routines and driver routines, and

'ZSG' for the routines for the Hermitian generalized

eigenvalue problem. -----------------------------------------------------------------------

SVD input file:

line 2: NN, INTEGER

Number of values of M and N.

line 3: MVAL, INTEGER array, dimension (NN)

The values for the matrix row dimension M.

line 4: NVAL, INTEGER array, dimension (NN)

The values for the matrix column dimension N.

line 5: NPARMS, INTEGER

Number of values of the parameter NB, NBMIN, NX, and NRHS.

line 6: NBVAL, INTEGER array, dimension (NPARMS)

The values for the blocksize NB.

line 7: NBMIN, INTEGER array, dimension (NPARMS)

The values for the minimum blocksize NBMIN.

line 8: NXVAL, INTEGER array, dimension (NPARMS)

The values for the crossover point NX.

line 9: NSVAL, INTEGER array, dimension (NPARMS)

The values for the number of right hand sides NRHS.

line 10: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 11: TSTCHK, LOGICAL

Flag indicating whether or not to test the LAPACK routines.

line 12: TSTDRV, LOGICAL

Flag indicating whether or not to test the driver routines.

line 13: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 14: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 14 was 2:

line 15: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 15-EOF: Lines specifying matrix types, as for NEP.

The 3-character path names are 'SVD' or 'ZBD' for both the

SVD routines and the SVD driver routines. -----------------------------------------------------------------------

ZEV and ZES data files:

line 1: 'ZEV' or 'ZES' in columns 1 to 3.

line 2: NSIZES, INTEGER

Number of sizes of matrices to use. Should be at least 0

and at most 20. If NSIZES = 0, no testing is done

(although the remaining 3 lines are still read).

line 3: NN, INTEGER array, dimension(NSIZES)

Dimensions of matrices to be tested.

line 4: NB, NBMIN, NX, NS, NBCOL, INTEGERs

These integer parameters determine how blocking is done

(see ILAENV for details)

NB : block size

NBMIN : minimum block size

NX : minimum dimension for blocking

NS : number of shifts in xHSEQR

NBCOL : minimum column dimension for blocking

line 5: THRESH, REAL

The test threshold against which computed residuals are

compared. Should generally be in the range from 10. to 20.

If it is 0., all test case data will be printed.

line 6: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 6 was 2:

line 7: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 8 and following: Lines specifying matrix types, as for NEP.

The 3-character path name is 'ZEV' to test CGEEV, or

'ZES' to test CGEES. -----------------------------------------------------------------------

The ZVX data has two parts. The first part is identical to ZEV,

and the second part consists of test matrices with precomputed

solutions.

line 1: 'ZVX' in columns 1-3.

line 2: NSIZES, INTEGER

If NSIZES = 0, no testing of randomly generated examples

is done, but any precomputed examples are tested.

line 3: NN, INTEGER array, dimension(NSIZES)

line 4: NB, NBMIN, NX, NS, NBCOL, INTEGERs

line 5: THRESH, REAL

line 6: NEWSD, INTEGER

If line 6 was 2:

line 7: INTEGER array, dimension (4)

lines 8 and following: The first line contains 'ZVX' in columns 1-3

followed by the number of matrix types, possibly with

a second line to specify certain matrix types.

If the number of matrix types = 0, no testing of randomly

generated examples is done, but any precomputed examples

are tested.

remaining lines : Each matrix is stored on 1+N+N**2 lines, where N is

its dimension. The first line contains the dimension N and

ISRT (two integers). ISRT indicates whether the last N lines

are sorted by increasing real part of the eigenvalue

(ISRT=0) or by increasing imaginary part (ISRT=1). The next

N**2 lines contain the matrix rowwise, one entry per line.

The last N lines correspond to each eigenvalue. Each of

these last N lines contains 4 real values: the real part of

the eigenvalues, the imaginary part of the eigenvalue, the

reciprocal condition number of the eigenvalues, and the

reciprocal condition number of the vector eigenvector. The

end of data is indicated by dimension N=0. Even if no data

is to be tested, there must be at least one line containing

N=0. -----------------------------------------------------------------------

The ZSX data is like ZVX. The first part is identical to ZEV, and the

second part consists of test matrices with precomputed solutions.

line 1: 'ZSX' in columns 1-3.

line 2: NSIZES, INTEGER

If NSIZES = 0, no testing of randomly generated examples

is done, but any precomputed examples are tested.

line 3: NN, INTEGER array, dimension(NSIZES)

line 4: NB, NBMIN, NX, NS, NBCOL, INTEGERs

line 5: THRESH, REAL

line 6: NEWSD, INTEGER

If line 6 was 2:

line 7: INTEGER array, dimension (4)

lines 8 and following: The first line contains 'ZSX' in columns 1-3

followed by the number of matrix types, possibly with

a second line to specify certain matrix types.

If the number of matrix types = 0, no testing of randomly

generated examples is done, but any precomputed examples

are tested.

remaining lines : Each matrix is stored on 3+N**2 lines, where N is

its dimension. The first line contains the dimension N, the

dimension M of an invariant subspace, and ISRT. The second

line contains M integers, identifying the eigenvalues in the

invariant subspace (by their position in a list of

eigenvalues ordered by increasing real part (if ISRT=0) or

by increasing imaginary part (if ISRT=1)). The next N**2

lines contain the matrix rowwise. The last line contains the

reciprocal condition number for the average of the selected

eigenvalues, and the reciprocal condition number for the

corresponding right invariant subspace. The end of data in

indicated by a line containing N=0, M=0, and ISRT = 0. Even

if no data is to be tested, there must be at least one line

containing N=0, M=0 and ISRT=0. -----------------------------------------------------------------------

ZGG input file:

line 2: NN, INTEGER

Number of values of N.

line 3: NVAL, INTEGER array, dimension (NN)

The values for the matrix dimension N.

line 4: NPARMS, INTEGER

Number of values of the parameters NB, NBMIN, NBCOL, NS, and

MAXB.

line 5: NBVAL, INTEGER array, dimension (NPARMS)

The values for the blocksize NB.

line 6: NBMIN, INTEGER array, dimension (NPARMS)

The values for NBMIN, the minimum row dimension for blocks.

line 7: NSVAL, INTEGER array, dimension (NPARMS)

The values for the number of shifts.

line 8: MXBVAL, INTEGER array, dimension (NPARMS)

The values for MAXB, used in determining minimum blocksize.

line 9: IACC22, INTEGER array, dimension (NPARMS)

select structured matrix multiply: 1 or 2)

line 10: NBCOL, INTEGER array, dimension (NPARMS)

The values for NBCOL, the minimum column dimension for

blocks.

line 11: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 12: TSTCHK, LOGICAL

Flag indicating whether or not to test the LAPACK routines.

line 13: TSTDRV, LOGICAL

Flag indicating whether or not to test the driver routines.

line 14: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 15: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 15 was 2:

line 16: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 17-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'ZGG' for the generalized

eigenvalue problem routines and driver routines. -----------------------------------------------------------------------

ZGS and ZGV input files:

line 1: 'ZGS' or 'ZGV' in columns 1 to 3.

line 2: NN, INTEGER

Number of values of N.

line 3: NVAL, INTEGER array, dimension(NN)

Dimensions of matrices to be tested.

line 4: NB, NBMIN, NX, NS, NBCOL, INTEGERs

These integer parameters determine how blocking is done

(see ILAENV for details)

NB : block size

NBMIN : minimum block size

NX : minimum dimension for blocking

NS : number of shifts in xHGEQR

NBCOL : minimum column dimension for blocking

line 5: THRESH, REAL

The test threshold against which computed residuals are

compared. Should generally be in the range from 10. to 20.

If it is 0., all test case data will be printed.

line 6: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits.

line 7: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 17 was 2:

line 7: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 7-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'ZGS' for the generalized

eigenvalue problem routines and driver routines. -----------------------------------------------------------------------

ZGX input file:

line 1: 'ZGX' in columns 1 to 3.

line 2: N, INTEGER

Value of N.

line 3: NB, NBMIN, NX, NS, NBCOL, INTEGERs

These integer parameters determine how blocking is done

(see ILAENV for details)

NB : block size

NBMIN : minimum block size

NX : minimum dimension for blocking

NS : number of shifts in xHGEQR

NBCOL : minimum column dimension for blocking

line 4: THRESH, REAL

The test threshold against which computed residuals are

compared. Should generally be in the range from 10. to 20.

Information will be printed about each test for which the

test ratio is greater than or equal to the threshold.

line 5: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 6: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 6 was 2:

line 7: INTEGER array, dimension (4)

Four integer values for the random number seed.

If line 2 was 0:

line 7-EOF: Precomputed examples are tested.

remaining lines : Each example is stored on 3+2*N*N lines, where N is

its dimension. The first line contains the dimension (a

single integer). The next line contains an integer k such

that only the last k eigenvalues will be selected and appear

in the leading diagonal blocks of $A$ and $B$. The next N*N

lines contain the matrix A, one element per line. The next N*N

lines contain the matrix B. The last line contains the

reciprocal of the eigenvalue cluster condition number and the

reciprocal of the deflating subspace (associated with the

selected eigencluster) condition number. The end of data is

indicated by dimension N=0. Even if no data is to be tested,

there must be at least one line containing N=0. -----------------------------------------------------------------------

ZXV input files:

line 1: 'ZXV' in columns 1 to 3.

line 2: N, INTEGER

Value of N.

line 3: NB, NBMIN, NX, NS, NBCOL, INTEGERs

These integer parameters determine how blocking is done

(see ILAENV for details)

NB : block size

NBMIN : minimum block size

NX : minimum dimension for blocking

NS : number of shifts in xHGEQR

NBCOL : minimum column dimension for blocking

line 4: THRESH, REAL

The test threshold against which computed residuals are

compared. Should generally be in the range from 10. to 20.

Information will be printed about each test for which the

test ratio is greater than or equal to the threshold.

line 5: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 6: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 6 was 2:

line 7: INTEGER array, dimension (4)

Four integer values for the random number seed.

If line 2 was 0:

line 7-EOF: Precomputed examples are tested.

remaining lines : Each example is stored on 3+2*N*N lines, where N is

its dimension. The first line contains the dimension (a

single integer). The next N*N lines contain the matrix A, one

element per line. The next N*N lines contain the matrix B.

The next line contains the reciprocals of the eigenvalue

condition numbers. The last line contains the reciprocals of

the eigenvector condition numbers. The end of data is

indicated by dimension N=0. Even if no data is to be tested,

there must be at least one line containing N=0. -----------------------------------------------------------------------

ZHB input file:

line 2: NN, INTEGER

Number of values of N.

line 3: NVAL, INTEGER array, dimension (NN)

The values for the matrix dimension N.

line 4: NK, INTEGER

Number of values of K.

line 5: KVAL, INTEGER array, dimension (NK)

The values for the matrix dimension K.

line 6: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 7 was 2:

line 8: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 8-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'ZHB'. -----------------------------------------------------------------------

ZBB input file:

line 2: NN, INTEGER

Number of values of M and N.

line 3: MVAL, INTEGER array, dimension (NN)

The values for the matrix row dimension M.

line 4: NVAL, INTEGER array, dimension (NN)

The values for the matrix column dimension N.

line 4: NK, INTEGER

Number of values of K.

line 5: KVAL, INTEGER array, dimension (NK)

The values for the matrix bandwidth K.

line 6: NPARMS, INTEGER

Number of values of the parameter NRHS

line 7: NSVAL, INTEGER array, dimension (NPARMS)

The values for the number of right hand sides NRHS.

line 8: THRESH

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 9: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 9 was 2:

line 10: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 10-EOF: Lines specifying matrix types, as for SVD.

The 3-character path name is 'ZBB'. -----------------------------------------------------------------------

ZEC input file:

line 2: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

lines 3-EOF:

Input for testing the eigencondition routines consists of a set of

specially constructed test cases and their solutions. The data

format is not intended to be modified by the user. -----------------------------------------------------------------------

ZBL and ZBK input files:

line 1: 'ZBL' in columns 1-3 to test CGEBAL, or 'ZBK' in

columns 1-3 to test CGEBAK.

The remaining lines consist of specially constructed test cases. -----------------------------------------------------------------------

ZGL and ZGK input files:

line 1: 'ZGL' in columns 1-3 to test ZGGBAL, or 'ZGK' in

columns 1-3 to test ZGGBAK.

The remaining lines consist of specially constructed test cases. -----------------------------------------------------------------------

GLM data file:

line 1: 'GLM' in columns 1 to 3.

line 2: NN, INTEGER

Number of values of M, P, and N.

line 3: MVAL, INTEGER array, dimension(NN)

Values of M (row dimension).

line 4: PVAL, INTEGER array, dimension(NN)

Values of P (row dimension).

line 5: NVAL, INTEGER array, dimension(NN)

Values of N (column dimension), note M <= N <= M+P.

line 6: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 8: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 8 was 2:

line 9: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 9-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'GLM' for the generalized

linear regression model routines. -----------------------------------------------------------------------

GQR data file:

line 1: 'GQR' in columns 1 to 3.

line 2: NN, INTEGER

Number of values of M, P, and N.

line 3: MVAL, INTEGER array, dimension(NN)

Values of M.

line 4: PVAL, INTEGER array, dimension(NN)

Values of P.

line 5: NVAL, INTEGER array, dimension(NN)

Values of N.

line 6: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 8: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 8 was 2:

line 9: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 9-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'GQR' for the generalized

QR and RQ routines. -----------------------------------------------------------------------

GSV data file:

line 1: 'GSV' in columns 1 to 3.

line 2: NN, INTEGER

Number of values of M, P, and N.

line 3: MVAL, INTEGER array, dimension(NN)

Values of M (row dimension).

line 4: PVAL, INTEGER array, dimension(NN)

Values of P (row dimension).

line 5: NVAL, INTEGER array, dimension(NN)

Values of N (column dimension).

line 6: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 8: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 8 was 2:

line 9: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 9-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'GSV' for the generalized

SVD routines. -----------------------------------------------------------------------

CSD data file:

line 1: 'CSD' in columns 1 to 3.

line 2: NM, INTEGER

Number of values of M, P, and N.

line 3: MVAL, INTEGER array, dimension(NM)

Values of M (row and column dimension of orthogonal matrix).

line 4: PVAL, INTEGER array, dimension(NM)

Values of P (row dimension of top-left block).

line 5: NVAL, INTEGER array, dimension(NM)

Values of N (column dimension of top-left block).

line 6: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 8: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 8 was 2:

line 9: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 9-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'CSD' for the CSD routine. -----------------------------------------------------------------------

LSE data file:

line 1: 'LSE' in columns 1 to 3.

line 2: NN, INTEGER

Number of values of M, P, and N.

line 3: MVAL, INTEGER array, dimension(NN)

Values of M.

line 4: PVAL, INTEGER array, dimension(NN)

Values of P.

line 5: NVAL, INTEGER array, dimension(NN)

Values of N, note P <= N <= P+M.

line 6: THRESH, REAL

Threshold value for the test ratios. Information will be

printed about each test for which the test ratio is greater

than or equal to the threshold.

line 7: TSTERR, LOGICAL

Flag indicating whether or not to test the error exits for

the LAPACK routines and driver routines.

line 8: NEWSD, INTEGER

A code indicating how to set the random number seed.

= 0: Set the seed to a default value before each run

= 1: Initialize the seed to a default value only before the

first run

= 2: Like 1, but use the seed values on the next line

If line 8 was 2:

line 9: INTEGER array, dimension (4)

Four integer values for the random number seed.

lines 9-EOF: Lines specifying matrix types, as for NEP.

The 3-character path name is 'GSV' for the generalized

SVD routines. -----------------------------------------------------------------------

NMAX is currently set to 132 and must be at least 12 for some of the

precomputed examples, and LWORK = NMAX*(5*NMAX+20) in the parameter

statements below. For SVD, we assume NRHS may be as big as N. The

parameter NEED is set to 14 to allow for 14 N-by-N matrices for ZGG.

**Author**

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

# Author¶

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