/* sdrvrf4.f -- translated by f2c (version 20061008).
You must link the resulting object file with libf2c:
on Microsoft Windows system, link with libf2c.lib;
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
or, if you install libf2c.a in a standard place, with -lf2c -lm
-- in that order, at the end of the command line, as in
cc *.o -lf2c -lm
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
http://www.netlib.org/f2c/libf2c.zip
*/
#include "f2c.h"
#include "blaswrap.h"
/* Common Block Declarations */
struct {
char srnamt[32];
} srnamc_;
#define srnamc_1 srnamc_
/* Table of constant values */
static integer c__2 = 2;
static integer c__1 = 1;
/* Subroutine */ int sdrvrf4_(integer *nout, integer *nn, integer *nval, real
*thresh, real *c1, real *c2, integer *ldc, real *crf, real *a,
integer *lda, real *s_work_slange__)
{
/* Initialized data */
static integer iseedy[4] = { 1988,1989,1990,1991 };
static char uplos[1*2] = "U" "L";
static char forms[1*2] = "N" "T";
static char transs[1*2] = "N" "T";
/* Format strings */
static char fmt_9999[] = "(1x,\002 *** Error(s) or Failure(s) while test"
"ing SSFRK ***\002)";
static char fmt_9997[] = "(1x,\002 Failure in \002,a5,\002, CFORM="
"'\002,a1,\002',\002,\002 UPLO='\002,a1,\002',\002,\002 TRANS="
"'\002,a1,\002',\002,\002 N=\002,i3,\002, K =\002,i3,\002, test"
"=\002,g12.5)";
static char fmt_9996[] = "(1x,\002All tests for \002,a5,\002 auxiliary r"
"outine passed the \002,\002threshold (\002,i5,\002 tests run)"
"\002)";
static char fmt_9995[] = "(1x,a6,\002 auxiliary routine:\002,i5,\002 out"
" of \002,i5,\002 tests failed to pass the threshold\002)";
/* System generated locals */
integer a_dim1, a_offset, c1_dim1, c1_offset, c2_dim1, c2_offset, i__1,
i__2, i__3, i__4;
real r__1;
/* Builtin functions */
/* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
integer s_wsle(cilist *), e_wsle(void), s_wsfe(cilist *), e_wsfe(void),
do_fio(integer *, char *, ftnlen);
/* Local variables */
integer i__, j, k, n, iik, iin;
real eps, beta;
integer info;
char uplo[1];
integer nrun;
real alpha;
integer nfail, iseed[4];
char cform[1];
integer iform;
real norma, normc;
char trans[1];
integer iuplo;
extern /* Subroutine */ int ssfrk_(char *, char *, char *, integer *,
integer *, real *, real *, integer *, real *, real *), ssyrk_(char *, char *, integer *, integer *,
real *, real *, integer *, real *, real *, integer *);
integer ialpha;
extern doublereal slamch_(char *), slange_(char *, integer *,
integer *, real *, integer *, real *), slarnd_(integer *,
integer *);
integer itrans;
real result[1];
extern /* Subroutine */ int stfttr_(char *, char *, integer *, real *,
real *, integer *, integer *), strttf_(char *,
char *, integer *, real *, integer *, real *, integer *);
/* Fortran I/O blocks */
static cilist io___28 = { 0, 0, 0, 0, 0 };
static cilist io___29 = { 0, 0, 0, fmt_9999, 0 };
static cilist io___30 = { 0, 0, 0, fmt_9997, 0 };
static cilist io___31 = { 0, 0, 0, fmt_9996, 0 };
static cilist io___32 = { 0, 0, 0, fmt_9995, 0 };
/* -- LAPACK test routine (version 3.2.0) -- */
/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/* November 2008 */
/* .. Scalar Arguments .. */
/* .. */
/* .. Array Arguments .. */
/* .. */
/* Purpose */
/* ======= */
/* SDRVRF4 tests the LAPACK RFP routines: */
/* SSFRK */
/* Arguments */
/* ========= */
/* NOUT (input) INTEGER */
/* The unit number for output. */
/* NN (input) INTEGER */
/* The number of values of N contained in the vector NVAL. */
/* NVAL (input) INTEGER array, dimension (NN) */
/* The values of the matrix dimension N. */
/* THRESH (input) 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. */
/* C1 (workspace) REAL array, */
/* dimension (LDC,NMAX) */
/* C2 (workspace) REAL array, */
/* dimension (LDC,NMAX) */
/* LDC (input) INTEGER */
/* The leading dimension of the array A. */
/* LDA >= max(1,NMAX). */
/* CRF (workspace) REAL array, */
/* dimension ((NMAX*(NMAX+1))/2). */
/* A (workspace) REAL array, */
/* dimension (LDA,NMAX) */
/* LDA (input) INTEGER */
/* The leading dimension of the array A. LDA >= max(1,NMAX). */
/* S_WORK_SLANGE (workspace) REAL array, dimension (NMAX) */
/* ===================================================================== */
/* .. */
/* .. Parameters .. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* .. Local Arrays .. */
/* .. */
/* .. External Functions .. */
/* .. */
/* .. External Subroutines .. */
/* .. */
/* .. Intrinsic Functions .. */
/* .. */
/* .. Scalars in Common .. */
/* .. */
/* .. Common blocks .. */
/* .. */
/* .. Data statements .. */
/* Parameter adjustments */
--nval;
c2_dim1 = *ldc;
c2_offset = 1 + c2_dim1;
c2 -= c2_offset;
c1_dim1 = *ldc;
c1_offset = 1 + c1_dim1;
c1 -= c1_offset;
--crf;
a_dim1 = *lda;
a_offset = 1 + a_dim1;
a -= a_offset;
--s_work_slange__;
/* Function Body */
/* .. */
/* .. Executable Statements .. */
/* Initialize constants and the random number seed. */
nrun = 0;
nfail = 0;
info = 0;
for (i__ = 1; i__ <= 4; ++i__) {
iseed[i__ - 1] = iseedy[i__ - 1];
/* L10: */
}
eps = slamch_("Precision");
i__1 = *nn;
for (iin = 1; iin <= i__1; ++iin) {
n = nval[iin];
i__2 = *nn;
for (iik = 1; iik <= i__2; ++iik) {
k = nval[iin];
for (iform = 1; iform <= 2; ++iform) {
*(unsigned char *)cform = *(unsigned char *)&forms[iform - 1];
for (iuplo = 1; iuplo <= 2; ++iuplo) {
*(unsigned char *)uplo = *(unsigned char *)&uplos[iuplo -
1];
for (itrans = 1; itrans <= 2; ++itrans) {
*(unsigned char *)trans = *(unsigned char *)&transs[
itrans - 1];
for (ialpha = 1; ialpha <= 4; ++ialpha) {
if (ialpha == 1) {
alpha = 0.f;
beta = 0.f;
} else if (ialpha == 2) {
alpha = 1.f;
beta = 0.f;
} else if (ialpha == 3) {
alpha = 0.f;
beta = 1.f;
} else {
alpha = slarnd_(&c__2, iseed);
beta = slarnd_(&c__2, iseed);
}
/* All the parameters are set: */
/* CFORM, UPLO, TRANS, M, N, */
/* ALPHA, and BETA */
/* READY TO TEST! */
++nrun;
if (itrans == 1) {
/* In this case we are NOTRANS, so A is N-by-K */
i__3 = k;
for (j = 1; j <= i__3; ++j) {
i__4 = n;
for (i__ = 1; i__ <= i__4; ++i__) {
a[i__ + j * a_dim1] = slarnd_(&c__2,
iseed);
}
}
norma = slange_("I", &n, &k, &a[a_offset],
lda, &s_work_slange__[1]);
} else {
/* In this case we are TRANS, so A is K-by-N */
i__3 = n;
for (j = 1; j <= i__3; ++j) {
i__4 = k;
for (i__ = 1; i__ <= i__4; ++i__) {
a[i__ + j * a_dim1] = slarnd_(&c__2,
iseed);
}
}
norma = slange_("I", &k, &n, &a[a_offset],
lda, &s_work_slange__[1]);
}
/* Generate C1 our N--by--N symmetric matrix. */
/* Make sure C2 has the same upper/lower part, */
/* (the one that we do not touch), so */
/* copy the initial C1 in C2 in it. */
i__3 = n;
for (j = 1; j <= i__3; ++j) {
i__4 = n;
for (i__ = 1; i__ <= i__4; ++i__) {
c1[i__ + j * c1_dim1] = slarnd_(&c__2,
iseed);
c2[i__ + j * c2_dim1] = c1[i__ + j *
c1_dim1];
}
}
/* (See comment later on for why we use SLANGE and */
/* not SLANSY for C1.) */
normc = slange_("I", &n, &n, &c1[c1_offset], ldc,
&s_work_slange__[1]);
s_copy(srnamc_1.srnamt, "STRTTF", (ftnlen)32, (
ftnlen)6);
strttf_(cform, uplo, &n, &c1[c1_offset], ldc, &
crf[1], &info);
/* call ssyrk the BLAS routine -> gives C1 */
s_copy(srnamc_1.srnamt, "SSYRK ", (ftnlen)32, (
ftnlen)6);
ssyrk_(uplo, trans, &n, &k, &alpha, &a[a_offset],
lda, &beta, &c1[c1_offset], ldc);
/* call ssfrk the RFP routine -> gives CRF */
s_copy(srnamc_1.srnamt, "SSFRK ", (ftnlen)32, (
ftnlen)6);
ssfrk_(cform, uplo, trans, &n, &k, &alpha, &a[
a_offset], lda, &beta, &crf[1]);
/* convert CRF in full format -> gives C2 */
s_copy(srnamc_1.srnamt, "STFTTR", (ftnlen)32, (
ftnlen)6);
stfttr_(cform, uplo, &n, &crf[1], &c2[c2_offset],
ldc, &info);
/* compare C1 and C2 */
i__3 = n;
for (j = 1; j <= i__3; ++j) {
i__4 = n;
for (i__ = 1; i__ <= i__4; ++i__) {
c1[i__ + j * c1_dim1] -= c2[i__ + j *
c2_dim1];
}
}
/* Yes, C1 is symmetric so we could call SLANSY, */
/* but we want to check the upper part that is */
/* supposed to be unchanged and the diagonal that */
/* is supposed to be real -> SLANGE */
result[0] = slange_("I", &n, &n, &c1[c1_offset],
ldc, &s_work_slange__[1]);
/* Computing MAX */
r__1 = dabs(alpha) * norma + dabs(beta);
result[0] = result[0] / dmax(r__1,1.f) / max(n,1)
/ eps;
if (result[0] >= *thresh) {
if (nfail == 0) {
io___28.ciunit = *nout;
s_wsle(&io___28);
e_wsle();
io___29.ciunit = *nout;
s_wsfe(&io___29);
e_wsfe();
}
io___30.ciunit = *nout;
s_wsfe(&io___30);
do_fio(&c__1, "SSFRK", (ftnlen)5);
do_fio(&c__1, cform, (ftnlen)1);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, trans, (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&k, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&result[0], (ftnlen)
sizeof(real));
e_wsfe();
++nfail;
}
/* L100: */
}
/* L110: */
}
/* L120: */
}
/* L130: */
}
/* L140: */
}
/* L150: */
}
/* Print a summary of the results. */
if (nfail == 0) {
io___31.ciunit = *nout;
s_wsfe(&io___31);
do_fio(&c__1, "SSFRK", (ftnlen)5);
do_fio(&c__1, (char *)&nrun, (ftnlen)sizeof(integer));
e_wsfe();
} else {
io___32.ciunit = *nout;
s_wsfe(&io___32);
do_fio(&c__1, "SSFRK", (ftnlen)5);
do_fio(&c__1, (char *)&nfail, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&nrun, (ftnlen)sizeof(integer));
e_wsfe();
}
return 0;
/* End of SDRVRF4 */
} /* sdrvrf4_ */