---
name: "smake"
section: "3"
platform: "linux"
package: "lapack-doc"
version: "3.12.1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/sblat2.f"
---

# smake(3)

Part of [sblat2.f(3)](/sblat2.f/3.md).

## NAME

BLAS/TESTING/sblat2.f

## SYNOPSIS

### Functions/Subroutines

program **sblat2**\
 **SBLAT2**  subroutine **schk1** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nkb, kb, nalf, alf, nbet, bet, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, y, yy, ys, yt, g)\
 subroutine **schk2** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nkb, kb, nalf, alf, nbet, bet, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, y, yy, ys, yt, g)\
 subroutine **schk3** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nkb, kb, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, xt, g, z)\
 subroutine **schk4** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nalf, alf, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, y, yy, ys, yt, g, z)\
 subroutine **schk5** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nalf, alf, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, y, yy, ys, yt, g, z)\
 subroutine **schk6** (sname, eps, thresh, nout, ntra, trace, rewi, fatal, nidim, idim, nalf, alf, ninc, inc, nmax, incmax, a, aa, as, x, xx, xs, y, yy, ys, yt, g, z)\
 subroutine **schke** (isnum, srnamt, nout)\
 subroutine **smake** (type, uplo, diag, m, n, a, nmax, aa, lda, kl, ku, reset, transl)\
 subroutine **smvch** (trans, m, n, alpha, a, nmax, x, incx, beta, y, incy, yt, g, yy, eps, err, fatal, nout, mv)\
 logical function **lse** (ri, rj, lr)\
 logical function **lseres** (type, uplo, m, n, aa, as, lda)\
 real function **sbeg** (reset)\
 real function **sdiff** (x, y)\
 subroutine **chkxer** (srnamt, infot, nout, lerr, ok)\
 subroutine **sregr1** (trans, m, n, ly, kl, ku, alpha, a, lda, x, incx, beta, y, incy, ys)\
 subroutine **xerbla** (srname, info)\

## Function/Subroutine Documentation

### subroutine chkxer (character\*6 srnamt, integer infot, integer nout, logical lerr, logical ok)

Definition at line **3120** of file **sblat2.f**.

### logical function lse (real, dimension( \* ) ri, real, dimension( \* ) rj, integer lr)

Definition at line **2969** of file **sblat2.f**.

### logical function lseres (character\*2 type, character\*1 uplo, integer m, integer n, real, dimension( lda, \* ) aa, real, dimension( lda, \* ) as, integer lda)

Definition at line **2999** of file **sblat2.f**.

### real function sbeg (logical reset)

Definition at line **3058** of file **sblat2.f**.

### program sblat2

**SBLAT2**

**Purpose:**

```
!>
!> Test program for the REAL Level 2 Blas.
!>
!> The program must be driven by a short data file. The first 18 records
!> of the file are read using list-directed input, the last 16 records
!> are read using the format ( A6, L2 ). An annotated example of a data
!> file can be obtained by deleting the first 3 characters from the
!> following 34 lines:
!> 'sblat2.out'      NAME OF SUMMARY OUTPUT FILE
!> 6                 UNIT NUMBER OF SUMMARY FILE
!> 'SBLAT2.SNAP'     NAME OF SNAPSHOT OUTPUT FILE
!> -1                UNIT NUMBER OF SNAPSHOT FILE (NOT USED IF .LT. 0)
!> F        LOGICAL FLAG, T TO REWIND SNAPSHOT FILE AFTER EACH RECORD.
!> F        LOGICAL FLAG, T TO STOP ON FAILURES.
!> T        LOGICAL FLAG, T TO TEST ERROR EXITS.
!> 16.0     THRESHOLD VALUE OF TEST RATIO
!> 6                 NUMBER OF VALUES OF N
!> 0 1 2 3 5 9       VALUES OF N
!> 4                 NUMBER OF VALUES OF K
!> 0 1 2 4           VALUES OF K
!> 4                 NUMBER OF VALUES OF INCX AND INCY
!> 1 2 -1 -2         VALUES OF INCX AND INCY
!> 3                 NUMBER OF VALUES OF ALPHA
!> 0.0 1.0 0.7       VALUES OF ALPHA
!> 3                 NUMBER OF VALUES OF BETA
!> 0.0 1.0 0.9       VALUES OF BETA
!> SGEMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> SGBMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> SSYMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> SSBMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> SSPMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STRMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STBMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STPMV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STRSV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STBSV  T PUT F FOR NO TEST. SAME COLUMNS.
!> STPSV  T PUT F FOR NO TEST. SAME COLUMNS.
!> SGER   T PUT F FOR NO TEST. SAME COLUMNS.
!> SSYR   T PUT F FOR NO TEST. SAME COLUMNS.
!> SSPR   T PUT F FOR NO TEST. SAME COLUMNS.
!> SSYR2  T PUT F FOR NO TEST. SAME COLUMNS.
!> SSPR2  T PUT F FOR NO TEST. SAME COLUMNS.
!>
!> Further Details
!> ===============
!>
!>    See:
!>
!>       Dongarra J. J., Du Croz J. J., Hammarling S.  and Hanson R. J..
!>       An  extended  set of Fortran  Basic Linear Algebra Subprograms.
!>
!>       Technical  Memoranda  Nos. 41 (revision 3) and 81,  Mathematics
!>       and  Computer Science  Division,  Argonne  National Laboratory,
!>       9700 South Cass Avenue, Argonne, Illinois 60439, US.
!>
!>       Or
!>
!>       NAG  Technical Reports TR3/87 and TR4/87,  Numerical Algorithms
!>       Group  Ltd.,  NAG  Central  Office,  256  Banbury  Road, Oxford
!>       OX2 7DE, UK,  and  Numerical Algorithms Group Inc.,  1101  31st
!>       Street,  Suite 100,  Downers Grove,  Illinois 60515-1263,  USA.
!>
!>
!> -- Written on 10-August-1987.
!>    Richard Hanson, Sandia National Labs.
!>    Jeremy Du Croz, NAG Central Office.
!>
!>    10-9-00:  Change STATUS='NEW' to 'UNKNOWN' so that the testers
!>              can be run multiple times without deleting generated
!>              output files (susan)
!>
```

**Author**

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line **101** of file **sblat2.f**.

### subroutine schk1 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nkb, integer, dimension( nkb ) kb, integer nalf, real, dimension( nalf ) alf, integer nbet, real, dimension( nbet ) bet, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) y, real, dimension( nmax\*incmax ) yy, real, dimension( nmax\*incmax ) ys, real, dimension( nmax ) yt, real, dimension( nmax ) g)

Definition at line **427** of file **sblat2.f**.

### subroutine schk2 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nkb, integer, dimension( nkb ) kb, integer nalf, real, dimension( nalf ) alf, integer nbet, real, dimension( nbet ) bet, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) y, real, dimension( nmax\*incmax ) yy, real, dimension( nmax\*incmax ) ys, real, dimension( nmax ) yt, real, dimension( nmax ) g)

Definition at line **796** of file **sblat2.f**.

### subroutine schk3 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nkb, integer, dimension( nkb ) kb, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) xt, real, dimension( nmax ) g, real, dimension( nmax ) z)

Definition at line **1139** of file **sblat2.f**.

### subroutine schk4 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nalf, real, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) y, real, dimension( nmax\*incmax ) yy, real, dimension( nmax\*incmax ) ys, real, dimension( nmax ) yt, real, dimension( nmax ) g, real, dimension( nmax ) z)

Definition at line **1496** of file **sblat2.f**.

### subroutine schk5 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nalf, real, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) y, real, dimension( nmax\*incmax ) yy, real, dimension( nmax\*incmax ) ys, real, dimension( nmax ) yt, real, dimension( nmax ) g, real, dimension( nmax ) z)

Definition at line **1757** of file **sblat2.f**.

### subroutine schk6 (character\*6 sname, real eps, real thresh, integer nout, integer ntra, logical trace, logical rewi, logical fatal, integer nidim, integer, dimension( nidim ) idim, integer nalf, real, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, real, dimension( nmax, nmax ) a, real, dimension( nmax\*nmax ) aa, real, dimension( nmax\*nmax ) as, real, dimension( nmax ) x, real, dimension( nmax\*incmax ) xx, real, dimension( nmax\*incmax ) xs, real, dimension( nmax ) y, real, dimension( nmax\*incmax ) yy, real, dimension( nmax\*incmax ) ys, real, dimension( nmax ) yt, real, dimension( nmax ) g, real, dimension( nmax, 2 ) z)

Definition at line **2035** of file **sblat2.f**.

### subroutine schke (integer isnum, character\*6 srnamt, integer nout)

Definition at line **2350** of file **sblat2.f**.

### real function sdiff (real x, real y)

Definition at line **3104** of file **sblat2.f**.

### subroutine smake (character\*2 type, character\*1 uplo, character\*1 diag, integer m, integer n, real, dimension( nmax, \* ) a, integer nmax, real, dimension( \* ) aa, integer lda, integer kl, integer ku, logical reset, real transl)

Definition at line **2676** of file **sblat2.f**.

### subroutine smvch (character\*1 trans, integer m, integer n, real alpha, real, dimension( nmax, \* ) a, integer nmax, real, dimension( \* ) x, integer incx, real beta, real, dimension( \* ) y, integer incy, real, dimension( \* ) yt, real, dimension( \* ) g, real, dimension( \* ) yy, real eps, real err, logical fatal, integer nout, logical mv)

Definition at line **2852** of file **sblat2.f**.

### subroutine sregr1 (character\*1 trans, integer m, integer n, integer ly, integer kl, integer ku, real alpha, real, dimension(lda,\*) a, integer lda, real, dimension(\*) x, integer incx, real beta, real, dimension(\*) y, integer incy, real, dimension(\*) ys)

Definition at line **3148** of file **sblat2.f**.

### subroutine xerbla (character\*6 srname, integer info)

Definition at line **3181** of file **sblat2.f**.

## Author

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