--- name: "cblat2.f" 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/cblat2.f" --- # cblat2.f(3) ## NAME BLAS/TESTING/cblat2.f ## SYNOPSIS ### Functions/Subroutines program **cblat2**\ **CBLAT2** subroutine **cchk1** (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 **cchk2** (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 **cchk3** (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 **cchk4** (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 **cchk5** (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 **cchk6** (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 **cchke** (isnum, srnamt, nout)\ subroutine **cmake** (type, uplo, diag, m, n, a, nmax, aa, lda, kl, ku, reset, transl)\ subroutine **cmvch** (trans, m, n, alpha, a, nmax, x, incx, beta, y, incy, yt, g, yy, eps, err, fatal, nout, mv)\ logical function **lce** (ri, rj, lr)\ logical function **lceres** (type, uplo, m, n, aa, as, lda)\ complex function **cbeg** (reset)\ real function **sdiff** (x, y)\ subroutine **chkxer** (srnamt, infot, nout, lerr, ok)\ subroutine **cregr1** (trans, m, n, ly, kl, ku, alpha, a, lda, x, incx, beta, y, incy, ys)\ subroutine **xerbla** (srname, info)\ ## Function/Subroutine Documentation ### complex function cbeg (logical reset) Definition at line **3155** of file **cblat2.f**. ### program cblat2 **CBLAT2** **Purpose:** ``` !> !> Test program for the COMPLEX 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 17 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 35 lines: !> 'cblat2.out' NAME OF SUMMARY OUTPUT FILE !> 6 UNIT NUMBER OF SUMMARY FILE !> 'CBLA2T.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 !> (0.0,0.0) (1.0,0.0) (0.7,-0.9) VALUES OF ALPHA !> 3 NUMBER OF VALUES OF BETA !> (0.0,0.0) (1.0,0.0) (1.3,-1.1) VALUES OF BETA !> CGEMV T PUT F FOR NO TEST. SAME COLUMNS. !> CGBMV T PUT F FOR NO TEST. SAME COLUMNS. !> CHEMV T PUT F FOR NO TEST. SAME COLUMNS. !> CHBMV T PUT F FOR NO TEST. SAME COLUMNS. !> CHPMV T PUT F FOR NO TEST. SAME COLUMNS. !> CTRMV T PUT F FOR NO TEST. SAME COLUMNS. !> CTBMV T PUT F FOR NO TEST. SAME COLUMNS. !> CTPMV T PUT F FOR NO TEST. SAME COLUMNS. !> CTRSV T PUT F FOR NO TEST. SAME COLUMNS. !> CTBSV T PUT F FOR NO TEST. SAME COLUMNS. !> CTPSV T PUT F FOR NO TEST. SAME COLUMNS. !> CGERC T PUT F FOR NO TEST. SAME COLUMNS. !> CGERU T PUT F FOR NO TEST. SAME COLUMNS. !> CHER T PUT F FOR NO TEST. SAME COLUMNS. !> CHPR T PUT F FOR NO TEST. SAME COLUMNS. !> CHER2 T PUT F FOR NO TEST. SAME COLUMNS. !> CHPR2 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 **102** of file **cblat2.f**. ### subroutine cchk1 (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, complex, dimension( nalf ) alf, integer nbet, complex, dimension( nbet ) bet, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) y, complex, dimension( nmax\*incmax ) yy, complex, dimension( nmax\*incmax ) ys, complex, dimension( nmax ) yt, real, dimension( nmax ) g) Definition at line **434** of file **cblat2.f**. ### subroutine cchk2 (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, complex, dimension( nalf ) alf, integer nbet, complex, dimension( nbet ) bet, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) y, complex, dimension( nmax\*incmax ) yy, complex, dimension( nmax\*incmax ) ys, complex, dimension( nmax ) yt, real, dimension( nmax ) g) Definition at line **807** of file **cblat2.f**. ### subroutine cchk3 (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, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) xt, real, dimension( nmax ) g, complex, dimension( nmax ) z) Definition at line **1155** of file **cblat2.f**. ### subroutine cchk4 (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, complex, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) y, complex, dimension( nmax\*incmax ) yy, complex, dimension( nmax\*incmax ) ys, complex, dimension( nmax ) yt, real, dimension( nmax ) g, complex, dimension( nmax ) z) Definition at line **1516** of file **cblat2.f**. ### subroutine cchk5 (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, complex, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) y, complex, dimension( nmax\*incmax ) yy, complex, dimension( nmax\*incmax ) ys, complex, dimension( nmax ) yt, real, dimension( nmax ) g, complex, dimension( nmax ) z) Definition at line **1793** of file **cblat2.f**. ### subroutine cchk6 (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, complex, dimension( nalf ) alf, integer ninc, integer, dimension( ninc ) inc, integer nmax, integer incmax, complex, dimension( nmax, nmax ) a, complex, dimension( nmax\*nmax ) aa, complex, dimension( nmax\*nmax ) as, complex, dimension( nmax ) x, complex, dimension( nmax\*incmax ) xx, complex, dimension( nmax\*incmax ) xs, complex, dimension( nmax ) y, complex, dimension( nmax\*incmax ) yy, complex, dimension( nmax\*incmax ) ys, complex, dimension( nmax ) yt, real, dimension( nmax ) g, complex, dimension( nmax, 2 ) z) Definition at line **2077** of file **cblat2.f**. ### subroutine cchke (integer isnum, character\*6 srnamt, integer nout) Definition at line **2399** of file **cblat2.f**. ### subroutine chkxer (character\*6 srnamt, integer infot, integer nout, logical lerr, logical ok) Definition at line **3223** of file **cblat2.f**. ### subroutine cmake (character\*2 type, character\*1 uplo, character\*1 diag, integer m, integer n, complex, dimension( nmax, \* ) a, integer nmax, complex, dimension( \* ) aa, integer lda, integer kl, integer ku, logical reset, complex transl) Definition at line **2742** of file **cblat2.f**. ### subroutine cmvch (character\*1 trans, integer m, integer n, complex alpha, complex, dimension( nmax, \* ) a, integer nmax, complex, dimension( \* ) x, integer incx, complex beta, complex, dimension( \* ) y, integer incy, complex, dimension( \* ) yt, real, dimension( \* ) g, complex, dimension( \* ) yy, real eps, real err, logical fatal, integer nout, logical mv) Definition at line **2934** of file **cblat2.f**. ### subroutine cregr1 (character\*1 trans, integer m, integer n, integer ly, integer kl, integer ku, complex alpha, complex, dimension(lda,\*) a, integer lda, complex, dimension(\*) x, integer incx, complex beta, complex, dimension(\*) y, integer incy, complex, dimension(\*) ys) Definition at line **3251** of file **cblat2.f**. ### logical function lce (complex, dimension( \* ) ri, complex, dimension( \* ) rj, integer lr) Definition at line **3066** of file **cblat2.f**. ### logical function lceres (character\*2 type, character\*1 uplo, integer m, integer n, complex, dimension( lda, \* ) aa, complex, dimension( lda, \* ) as, integer lda) Definition at line **3096** of file **cblat2.f**. ### real function sdiff (real x, real y) Definition at line **3207** of file **cblat2.f**. ### subroutine xerbla (character\*6 srname, integer info) Definition at line **3284** of file **cblat2.f**. ## Author Generated automatically by Doxygen for LAPACK from the source code.