/* sdrgvx.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" /* Table of constant values */ static integer c__1 = 1; static integer c__0 = 0; static integer c__5 = 5; static logical c_true = TRUE_; static logical c_false = FALSE_; static integer c__3 = 3; static integer c__4 = 4; /* Subroutine */ int sdrgvx_(integer *nsize, real *thresh, integer *nin, integer *nout, real *a, integer *lda, real *b, real *ai, real *bi, real *alphar, real *alphai, real *beta, real *vl, real *vr, integer * ilo, integer *ihi, real *lscale, real *rscale, real *s, real *stru, real *dif, real *diftru, real *work, integer *lwork, integer *iwork, integer *liwork, real *result, logical *bwork, integer *info) { /* Format strings */ static char fmt_9999[] = "(\002 SDRGVX: \002,a,\002 returned INFO=\002,i" "6,\002.\002,/9x,\002N=\002,i6,\002, JTYPE=\002,i6,\002)\002)"; static char fmt_9998[] = "(\002 SDRGVX: \002,a,\002 Eigenvectors from" " \002,a,\002 incorrectly \002,\002normalized.\002,/\002 Bits of " "error=\002,0p,g10.3,\002,\002,9x,\002N=\002,i6,\002, JTYPE=\002," "i6,\002, IWA=\002,i5,\002, IWB=\002,i5,\002, IWX=\002,i5,\002, I" "WY=\002,i5)"; static char fmt_9997[] = "(/1x,a3,\002 -- Real Expert Eigenvalue/vecto" "r\002,\002 problem driver\002)"; static char fmt_9995[] = "(\002 Matrix types: \002,/)"; static char fmt_9994[] = "(\002 TYPE 1: Da is diagonal, Db is identity," " \002,/\002 A = Y^(-H) Da X^(-1), B = Y^(-H) Db X^(-1) \002,/" "\002 YH and X are left and right eigenvectors. \002,/)"; static char fmt_9993[] = "(\002 TYPE 2: Da is quasi-diagonal, Db is iden" "tity, \002,/\002 A = Y^(-H) Da X^(-1), B = Y^(-H) Db X^(-1)" " \002,/\002 YH and X are left and right eigenvectors. \002,/)" ; static char fmt_9992[] = "(/\002 Tests performed: \002,/4x,\002 a is al" "pha, b is beta, l is a left eigenvector, \002,/4x,\002 r is a ri" "ght eigenvector and \002,a,\002 means \002,a,\002.\002,/\002 1 =" " max | ( b A - a B )\002,a,\002 l | / const.\002,/\002 2 = max |" " ( b A - a B ) r | / const.\002,/\002 3 = max ( Sest/Stru, Stru/" "Sest ) \002,\002 over all eigenvalues\002,/\002 4 = max( DIFest/" "DIFtru, DIFtru/DIFest ) \002,\002 over the 1st and 5th eigenvect" "ors\002,/)"; static char fmt_9991[] = "(\002 Type=\002,i2,\002,\002,\002 IWA=\002,i2" ",\002, IWB=\002,i2,\002, IWX=\002,i2,\002, IWY=\002,i2,\002, res" "ult \002,i2,\002 is\002,0p,f8.2)"; static char fmt_9990[] = "(\002 Type=\002,i2,\002,\002,\002 IWA=\002,i2" ",\002, IWB=\002,i2,\002, IWX=\002,i2,\002, IWY=\002,i2,\002, res" "ult \002,i2,\002 is\002,1p,e10.3)"; static char fmt_9987[] = "(\002 SDRGVX: \002,a,\002 returned INFO=\002,i" "6,\002.\002,/9x,\002N=\002,i6,\002, Input example #\002,i2,\002" ")\002)"; static char fmt_9986[] = "(\002 SDRGVX: \002,a,\002 Eigenvectors from" " \002,a,\002 incorrectly \002,\002normalized.\002,/\002 Bits of " "error=\002,0p,g10.3,\002,\002,9x,\002N=\002,i6,\002, Input Examp" "le #\002,i2,\002)\002)"; static char fmt_9996[] = "(\002 Input Example\002)"; static char fmt_9989[] = "(\002 Input example #\002,i2,\002, matrix orde" "r=\002,i4,\002,\002,\002 result \002,i2,\002 is\002,0p,f8.2)"; static char fmt_9988[] = "(\002 Input example #\002,i2,\002, matrix orde" "r=\002,i4,\002,\002,\002 result \002,i2,\002 is\002,1p,e10.3)"; /* System generated locals */ integer a_dim1, a_offset, ai_dim1, ai_offset, b_dim1, b_offset, bi_dim1, bi_offset, vl_dim1, vl_offset, vr_dim1, vr_offset, i__1, i__2; real r__1, r__2, r__3, r__4; /* Builtin functions */ double sqrt(doublereal); integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void), s_rsle(cilist *), do_lio(integer *, integer *, char *, ftnlen), e_rsle(void); /* Local variables */ integer i__, j, n, iwa, iwb; real ulp; integer iwx, iwy, nmax, linfo; extern /* Subroutine */ int sget52_(logical *, integer *, real *, integer *, real *, integer *, real *, integer *, real *, real *, real *, real *, real *); real anorm, bnorm; integer nerrs; real ratio1, ratio2; extern /* Subroutine */ int slatm6_(integer *, integer *, real *, integer *, real *, real *, integer *, real *, integer *, real *, real *, real *, real *, real *, real *); real thrsh2; extern doublereal slamch_(char *), slange_(char *, integer *, integer *, real *, integer *, real *); extern /* Subroutine */ int xerbla_(char *, integer *); real abnorm; extern integer ilaenv_(integer *, char *, char *, integer *, integer *, integer *, integer *); extern /* Subroutine */ int alasvm_(char *, integer *, integer *, integer *, integer *); real weight[5]; extern /* Subroutine */ int slacpy_(char *, integer *, integer *, real *, integer *, real *, integer *), sggevx_(char *, char *, char *, char *, integer *, real *, integer *, real *, integer *, real *, real *, real *, real *, integer *, real *, integer *, integer *, integer *, real *, real *, real *, real *, real *, real *, real *, integer *, integer *, logical *, integer *); integer minwrk, maxwrk, iptype, nptknt; real ulpinv; integer ntestt; /* Fortran I/O blocks */ static cilist io___20 = { 0, 0, 0, fmt_9999, 0 }; static cilist io___22 = { 0, 0, 0, fmt_9998, 0 }; static cilist io___23 = { 0, 0, 0, fmt_9998, 0 }; static cilist io___28 = { 0, 0, 0, fmt_9997, 0 }; static cilist io___29 = { 0, 0, 0, fmt_9995, 0 }; static cilist io___30 = { 0, 0, 0, fmt_9994, 0 }; static cilist io___31 = { 0, 0, 0, fmt_9993, 0 }; static cilist io___32 = { 0, 0, 0, fmt_9992, 0 }; static cilist io___33 = { 0, 0, 0, fmt_9991, 0 }; static cilist io___34 = { 0, 0, 0, fmt_9990, 0 }; static cilist io___35 = { 0, 0, 1, 0, 0 }; static cilist io___36 = { 0, 0, 0, 0, 0 }; static cilist io___37 = { 0, 0, 0, 0, 0 }; static cilist io___38 = { 0, 0, 0, 0, 0 }; static cilist io___39 = { 0, 0, 0, 0, 0 }; static cilist io___40 = { 0, 0, 0, fmt_9987, 0 }; static cilist io___41 = { 0, 0, 0, fmt_9986, 0 }; static cilist io___42 = { 0, 0, 0, fmt_9986, 0 }; static cilist io___43 = { 0, 0, 0, fmt_9997, 0 }; static cilist io___44 = { 0, 0, 0, fmt_9996, 0 }; static cilist io___45 = { 0, 0, 0, fmt_9992, 0 }; static cilist io___46 = { 0, 0, 0, fmt_9989, 0 }; static cilist io___47 = { 0, 0, 0, fmt_9988, 0 }; /* -- LAPACK test routine (version 3.1) -- */ /* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ /* November 2006 */ /* .. Scalar Arguments .. */ /* .. */ /* .. Array Arguments .. */ /* .. */ /* Purpose */ /* ======= */ /* SDRGVX checks the nonsymmetric generalized eigenvalue problem */ /* expert driver SGGEVX. */ /* SGGEVX computes the generalized eigenvalues, (optionally) the left */ /* and/or right eigenvectors, (optionally) computes a balancing */ /* transformation to improve the conditioning, and (optionally) */ /* reciprocal condition numbers for the eigenvalues and eigenvectors. */ /* When SDRGVX is called with NSIZE > 0, two types of test matrix pairs */ /* are generated by the subroutine SLATM6 and test the driver SGGEVX. */ /* The test matrices have the known exact condition numbers for */ /* eigenvalues. For the condition numbers of the eigenvectors */ /* corresponding the first and last eigenvalues are also know */ /* ``exactly'' (see SLATM6). */ /* For each matrix pair, the following tests will be performed and */ /* compared with the threshhold THRESH. */ /* (1) max over all left eigenvalue/-vector pairs (beta/alpha,l) of */ /* | l**H * (beta A - alpha B) | / ( ulp max( |beta A|, |alpha B| ) ) */ /* where l**H is the conjugate tranpose of l. */ /* (2) max over all right eigenvalue/-vector pairs (beta/alpha,r) of */ /* | (beta A - alpha B) r | / ( ulp max( |beta A|, |alpha B| ) ) */ /* (3) The condition number S(i) of eigenvalues computed by SGGEVX */ /* differs less than a factor THRESH from the exact S(i) (see */ /* SLATM6). */ /* (4) DIF(i) computed by STGSNA differs less than a factor 10*THRESH */ /* from the exact value (for the 1st and 5th vectors only). */ /* Test Matrices */ /* ============= */ /* Two kinds of test matrix pairs */ /* (A, B) = inverse(YH) * (Da, Db) * inverse(X) */ /* are used in the tests: */ /* 1: Da = 1+a 0 0 0 0 Db = 1 0 0 0 0 */ /* 0 2+a 0 0 0 0 1 0 0 0 */ /* 0 0 3+a 0 0 0 0 1 0 0 */ /* 0 0 0 4+a 0 0 0 0 1 0 */ /* 0 0 0 0 5+a , 0 0 0 0 1 , and */ /* 2: Da = 1 -1 0 0 0 Db = 1 0 0 0 0 */ /* 1 1 0 0 0 0 1 0 0 0 */ /* 0 0 1 0 0 0 0 1 0 0 */ /* 0 0 0 1+a 1+b 0 0 0 1 0 */ /* 0 0 0 -1-b 1+a , 0 0 0 0 1 . */ /* In both cases the same inverse(YH) and inverse(X) are used to compute */ /* (A, B), giving the exact eigenvectors to (A,B) as (YH, X): */ /* YH: = 1 0 -y y -y X = 1 0 -x -x x */ /* 0 1 -y y -y 0 1 x -x -x */ /* 0 0 1 0 0 0 0 1 0 0 */ /* 0 0 0 1 0 0 0 0 1 0 */ /* 0 0 0 0 1, 0 0 0 0 1 , where */ /* a, b, x and y will have all values independently of each other from */ /* { sqrt(sqrt(ULP)), 0.1, 1, 10, 1/sqrt(sqrt(ULP)) }. */ /* Arguments */ /* ========= */ /* NSIZE (input) INTEGER */ /* The number of sizes of matrices to use. NSIZE must be at */ /* least zero. If it is zero, no randomly generated matrices */ /* are tested, but any test matrices read from NIN will be */ /* tested. */ /* THRESH (input) REAL */ /* A test will count as "failed" if the "error", computed as */ /* described above, exceeds THRESH. Note that the error */ /* is scaled to be O(1), so THRESH should be a reasonably */ /* small multiple of 1, e.g., 10 or 100. In particular, */ /* it should not depend on the precision (single vs. double) */ /* or the size of the matrix. It must be at least zero. */ /* NIN (input) INTEGER */ /* The FORTRAN unit number for reading in the data file of */ /* problems to solve. */ /* NOUT (input) INTEGER */ /* The FORTRAN unit number for printing out error messages */ /* (e.g., if a routine returns IINFO not equal to 0.) */ /* A (workspace) REAL array, dimension (LDA, NSIZE) */ /* Used to hold the matrix whose eigenvalues are to be */ /* computed. On exit, A contains the last matrix actually used. */ /* LDA (input) INTEGER */ /* The leading dimension of A, B, AI, BI, Ao, and Bo. */ /* It must be at least 1 and at least NSIZE. */ /* B (workspace) REAL array, dimension (LDA, NSIZE) */ /* Used to hold the matrix whose eigenvalues are to be */ /* computed. On exit, B contains the last matrix actually used. */ /* AI (workspace) REAL array, dimension (LDA, NSIZE) */ /* Copy of A, modified by SGGEVX. */ /* BI (workspace) REAL array, dimension (LDA, NSIZE) */ /* Copy of B, modified by SGGEVX. */ /* ALPHAR (workspace) REAL array, dimension (NSIZE) */ /* ALPHAI (workspace) REAL array, dimension (NSIZE) */ /* BETA (workspace) REAL array, dimension (NSIZE) */ /* On exit, (ALPHAR + ALPHAI*i)/BETA are the eigenvalues. */ /* VL (workspace) REAL array, dimension (LDA, NSIZE) */ /* VL holds the left eigenvectors computed by SGGEVX. */ /* VR (workspace) REAL array, dimension (LDA, NSIZE) */ /* VR holds the right eigenvectors computed by SGGEVX. */ /* ILO (output/workspace) INTEGER */ /* IHI (output/workspace) INTEGER */ /* LSCALE (output/workspace) REAL array, dimension (N) */ /* RSCALE (output/workspace) REAL array, dimension (N) */ /* S (output/workspace) REAL array, dimension (N) */ /* STRU (output/workspace) REAL array, dimension (N) */ /* DIF (output/workspace) REAL array, dimension (N) */ /* DIFTRU (output/workspace) REAL array, dimension (N) */ /* WORK (workspace) REAL array, dimension (LWORK) */ /* LWORK (input) INTEGER */ /* Leading dimension of WORK. LWORK >= 2*N*N+12*N+16. */ /* IWORK (workspace) INTEGER array, dimension (LIWORK) */ /* LIWORK (input) INTEGER */ /* Leading dimension of IWORK. Must be at least N+6. */ /* RESULT (output/workspace) REAL array, dimension (4) */ /* BWORK (workspace) LOGICAL array, dimension (N) */ /* INFO (output) INTEGER */ /* = 0: successful exit */ /* < 0: if INFO = -i, the i-th argument had an illegal value. */ /* > 0: A routine returned an error code. */ /* ===================================================================== */ /* .. Parameters .. */ /* .. */ /* .. Local Scalars .. */ /* .. */ /* .. Local Arrays .. */ /* .. */ /* .. External Functions .. */ /* .. */ /* .. External Subroutines .. */ /* .. */ /* .. Intrinsic Functions .. */ /* .. */ /* .. Executable Statements .. */ /* Check for errors */ /* Parameter adjustments */ vr_dim1 = *lda; vr_offset = 1 + vr_dim1; vr -= vr_offset; vl_dim1 = *lda; vl_offset = 1 + vl_dim1; vl -= vl_offset; bi_dim1 = *lda; bi_offset = 1 + bi_dim1; bi -= bi_offset; ai_dim1 = *lda; ai_offset = 1 + ai_dim1; ai -= ai_offset; b_dim1 = *lda; b_offset = 1 + b_dim1; b -= b_offset; a_dim1 = *lda; a_offset = 1 + a_dim1; a -= a_offset; --alphar; --alphai; --beta; --lscale; --rscale; --s; --stru; --dif; --diftru; --work; --iwork; --result; --bwork; /* Function Body */ *info = 0; nmax = 5; if (*nsize < 0) { *info = -1; } else if (*thresh < 0.f) { *info = -2; } else if (*nin <= 0) { *info = -3; } else if (*nout <= 0) { *info = -4; } else if (*lda < 1 || *lda < nmax) { *info = -6; } else if (*liwork < nmax + 6) { *info = -26; } /* Compute workspace */ /* (Note: Comments in the code beginning "Workspace:" describe the */ /* minimal amount of workspace needed at that point in the code, */ /* as well as the preferred amount for good performance. */ /* NB refers to the optimal block size for the immediately */ /* following subroutine, as returned by ILAENV.) */ minwrk = 1; if (*info == 0 && *lwork >= 1) { minwrk = (nmax << 1) * nmax + nmax * 12 + 16; maxwrk = nmax * 6 + nmax * ilaenv_(&c__1, "SGEQRF", " ", &nmax, &c__1, &nmax, &c__0); /* Computing MAX */ i__1 = maxwrk, i__2 = (nmax << 1) * nmax + nmax * 12 + 16; maxwrk = max(i__1,i__2); work[1] = (real) maxwrk; } if (*lwork < minwrk) { *info = -24; } if (*info != 0) { i__1 = -(*info); xerbla_("SDRGVX", &i__1); return 0; } n = 5; ulp = slamch_("P"); ulpinv = 1.f / ulp; thrsh2 = *thresh * 10.f; nerrs = 0; nptknt = 0; ntestt = 0; if (*nsize == 0) { goto L90; } /* Parameters used for generating test matrices. */ weight[0] = sqrt(sqrt(ulp)); weight[1] = .1f; weight[2] = 1.f; weight[3] = 1.f / weight[1]; weight[4] = 1.f / weight[0]; for (iptype = 1; iptype <= 2; ++iptype) { for (iwa = 1; iwa <= 5; ++iwa) { for (iwb = 1; iwb <= 5; ++iwb) { for (iwx = 1; iwx <= 5; ++iwx) { for (iwy = 1; iwy <= 5; ++iwy) { /* generated a test matrix pair */ slatm6_(&iptype, &c__5, &a[a_offset], lda, &b[ b_offset], &vr[vr_offset], lda, &vl[vl_offset] , lda, &weight[iwa - 1], &weight[iwb - 1], & weight[iwx - 1], &weight[iwy - 1], &stru[1], & diftru[1]); /* Compute eigenvalues/eigenvectors of (A, B). */ /* Compute eigenvalue/eigenvector condition numbers */ /* using computed eigenvectors. */ slacpy_("F", &n, &n, &a[a_offset], lda, &ai[ai_offset] , lda); slacpy_("F", &n, &n, &b[b_offset], lda, &bi[bi_offset] , lda); sggevx_("N", "V", "V", "B", &n, &ai[ai_offset], lda, & bi[bi_offset], lda, &alphar[1], &alphai[1], & beta[1], &vl[vl_offset], lda, &vr[vr_offset], lda, ilo, ihi, &lscale[1], &rscale[1], &anorm, &bnorm, &s[1], &dif[1], &work[1], lwork, & iwork[1], &bwork[1], &linfo); if (linfo != 0) { result[1] = ulpinv; io___20.ciunit = *nout; s_wsfe(&io___20); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&linfo, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)) ; do_fio(&c__1, (char *)&iptype, (ftnlen)sizeof( integer)); e_wsfe(); goto L30; } /* Compute the norm(A, B) */ slacpy_("Full", &n, &n, &ai[ai_offset], lda, &work[1], &n); slacpy_("Full", &n, &n, &bi[bi_offset], lda, &work[n * n + 1], &n); i__1 = n << 1; abnorm = slange_("Fro", &n, &i__1, &work[1], &n, & work[1]); /* Tests (1) and (2) */ result[1] = 0.f; sget52_(&c_true, &n, &a[a_offset], lda, &b[b_offset], lda, &vl[vl_offset], lda, &alphar[1], &alphai[ 1], &beta[1], &work[1], &result[1]); if (result[2] > *thresh) { io___22.ciunit = *nout; s_wsfe(&io___22); do_fio(&c__1, "Left", (ftnlen)4); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&result[2], (ftnlen)sizeof( real)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)) ; do_fio(&c__1, (char *)&iptype, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwa, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwb, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwx, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwy, (ftnlen)sizeof( integer)); e_wsfe(); } result[2] = 0.f; sget52_(&c_false, &n, &a[a_offset], lda, &b[b_offset], lda, &vr[vr_offset], lda, &alphar[1], & alphai[1], &beta[1], &work[1], &result[2]); if (result[3] > *thresh) { io___23.ciunit = *nout; s_wsfe(&io___23); do_fio(&c__1, "Right", (ftnlen)5); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&result[3], (ftnlen)sizeof( real)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)) ; do_fio(&c__1, (char *)&iptype, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwa, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwb, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwx, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&iwy, (ftnlen)sizeof( integer)); e_wsfe(); } /* Test (3) */ result[3] = 0.f; i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { if (s[i__] == 0.f) { if (stru[i__] > abnorm * ulp) { result[3] = ulpinv; } } else if (stru[i__] == 0.f) { if (s[i__] > abnorm * ulp) { result[3] = ulpinv; } } else { /* Computing MAX */ r__3 = (r__1 = stru[i__] / s[i__], dabs(r__1)) , r__4 = (r__2 = s[i__] / stru[i__], dabs(r__2)); work[i__] = dmax(r__3,r__4); /* Computing MAX */ r__1 = result[3], r__2 = work[i__]; result[3] = dmax(r__1,r__2); } /* L10: */ } /* Test (4) */ result[4] = 0.f; if (dif[1] == 0.f) { if (diftru[1] > abnorm * ulp) { result[4] = ulpinv; } } else if (diftru[1] == 0.f) { if (dif[1] > abnorm * ulp) { result[4] = ulpinv; } } else if (dif[5] == 0.f) { if (diftru[5] > abnorm * ulp) { result[4] = ulpinv; } } else if (diftru[5] == 0.f) { if (dif[5] > abnorm * ulp) { result[4] = ulpinv; } } else { /* Computing MAX */ r__3 = (r__1 = diftru[1] / dif[1], dabs(r__1)), r__4 = (r__2 = dif[1] / diftru[1], dabs( r__2)); ratio1 = dmax(r__3,r__4); /* Computing MAX */ r__3 = (r__1 = diftru[5] / dif[5], dabs(r__1)), r__4 = (r__2 = dif[5] / diftru[5], dabs( r__2)); ratio2 = dmax(r__3,r__4); result[4] = dmax(ratio1,ratio2); } ntestt += 4; /* Print out tests which fail. */ for (j = 1; j <= 4; ++j) { if (result[j] >= thrsh2 && j >= 4 || result[j] >= *thresh && j <= 3) { /* If this is the first test to fail, */ /* print a header to the data file. */ if (nerrs == 0) { io___28.ciunit = *nout; s_wsfe(&io___28); do_fio(&c__1, "SXV", (ftnlen)3); e_wsfe(); /* Print out messages for built-in examples */ /* Matrix types */ io___29.ciunit = *nout; s_wsfe(&io___29); e_wsfe(); io___30.ciunit = *nout; s_wsfe(&io___30); e_wsfe(); io___31.ciunit = *nout; s_wsfe(&io___31); e_wsfe(); /* Tests performed */ io___32.ciunit = *nout; s_wsfe(&io___32); do_fio(&c__1, "'", (ftnlen)1); do_fio(&c__1, "transpose", (ftnlen)9); do_fio(&c__1, "'", (ftnlen)1); e_wsfe(); } ++nerrs; if (result[j] < 1e4f) { io___33.ciunit = *nout; s_wsfe(&io___33); do_fio(&c__1, (char *)&iptype, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwa, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwb, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwx, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwy, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&j, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&result[j], (ftnlen) sizeof(real)); e_wsfe(); } else { io___34.ciunit = *nout; s_wsfe(&io___34); do_fio(&c__1, (char *)&iptype, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwa, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwb, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwx, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&iwy, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&j, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&result[j], (ftnlen) sizeof(real)); e_wsfe(); } } /* L20: */ } L30: /* L40: */ ; } /* L50: */ } /* L60: */ } /* L70: */ } /* L80: */ } goto L150; L90: /* Read in data from file to check accuracy of condition estimation */ /* Read input data until N=0 */ io___35.ciunit = *nin; i__1 = s_rsle(&io___35); if (i__1 != 0) { goto L150; } i__1 = do_lio(&c__3, &c__1, (char *)&n, (ftnlen)sizeof(integer)); if (i__1 != 0) { goto L150; } i__1 = e_rsle(); if (i__1 != 0) { goto L150; } if (n == 0) { goto L150; } i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { io___36.ciunit = *nin; s_rsle(&io___36); i__2 = n; for (j = 1; j <= i__2; ++j) { do_lio(&c__4, &c__1, (char *)&a[i__ + j * a_dim1], (ftnlen)sizeof( real)); } e_rsle(); /* L100: */ } i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { io___37.ciunit = *nin; s_rsle(&io___37); i__2 = n; for (j = 1; j <= i__2; ++j) { do_lio(&c__4, &c__1, (char *)&b[i__ + j * b_dim1], (ftnlen)sizeof( real)); } e_rsle(); /* L110: */ } io___38.ciunit = *nin; s_rsle(&io___38); i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { do_lio(&c__4, &c__1, (char *)&stru[i__], (ftnlen)sizeof(real)); } e_rsle(); io___39.ciunit = *nin; s_rsle(&io___39); i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { do_lio(&c__4, &c__1, (char *)&diftru[i__], (ftnlen)sizeof(real)); } e_rsle(); ++nptknt; /* Compute eigenvalues/eigenvectors of (A, B). */ /* Compute eigenvalue/eigenvector condition numbers */ /* using computed eigenvectors. */ slacpy_("F", &n, &n, &a[a_offset], lda, &ai[ai_offset], lda); slacpy_("F", &n, &n, &b[b_offset], lda, &bi[bi_offset], lda); sggevx_("N", "V", "V", "B", &n, &ai[ai_offset], lda, &bi[bi_offset], lda, &alphar[1], &alphai[1], &beta[1], &vl[vl_offset], lda, &vr[ vr_offset], lda, ilo, ihi, &lscale[1], &rscale[1], &anorm, &bnorm, &s[1], &dif[1], &work[1], lwork, &iwork[1], &bwork[1], &linfo); if (linfo != 0) { result[1] = ulpinv; io___40.ciunit = *nout; s_wsfe(&io___40); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&linfo, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&nptknt, (ftnlen)sizeof(integer)); e_wsfe(); goto L140; } /* Compute the norm(A, B) */ slacpy_("Full", &n, &n, &ai[ai_offset], lda, &work[1], &n); slacpy_("Full", &n, &n, &bi[bi_offset], lda, &work[n * n + 1], &n); i__1 = n << 1; abnorm = slange_("Fro", &n, &i__1, &work[1], &n, &work[1]); /* Tests (1) and (2) */ result[1] = 0.f; sget52_(&c_true, &n, &a[a_offset], lda, &b[b_offset], lda, &vl[vl_offset], lda, &alphar[1], &alphai[1], &beta[1], &work[1], &result[1]); if (result[2] > *thresh) { io___41.ciunit = *nout; s_wsfe(&io___41); do_fio(&c__1, "Left", (ftnlen)4); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&result[2], (ftnlen)sizeof(real)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&nptknt, (ftnlen)sizeof(integer)); e_wsfe(); } result[2] = 0.f; sget52_(&c_false, &n, &a[a_offset], lda, &b[b_offset], lda, &vr[vr_offset] , lda, &alphar[1], &alphai[1], &beta[1], &work[1], &result[2]); if (result[3] > *thresh) { io___42.ciunit = *nout; s_wsfe(&io___42); do_fio(&c__1, "Right", (ftnlen)5); do_fio(&c__1, "SGGEVX", (ftnlen)6); do_fio(&c__1, (char *)&result[3], (ftnlen)sizeof(real)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&nptknt, (ftnlen)sizeof(integer)); e_wsfe(); } /* Test (3) */ result[3] = 0.f; i__1 = n; for (i__ = 1; i__ <= i__1; ++i__) { if (s[i__] == 0.f) { if (stru[i__] > abnorm * ulp) { result[3] = ulpinv; } } else if (stru[i__] == 0.f) { if (s[i__] > abnorm * ulp) { result[3] = ulpinv; } } else { /* Computing MAX */ r__3 = (r__1 = stru[i__] / s[i__], dabs(r__1)), r__4 = (r__2 = s[ i__] / stru[i__], dabs(r__2)); work[i__] = dmax(r__3,r__4); /* Computing MAX */ r__1 = result[3], r__2 = work[i__]; result[3] = dmax(r__1,r__2); } /* L120: */ } /* Test (4) */ result[4] = 0.f; if (dif[1] == 0.f) { if (diftru[1] > abnorm * ulp) { result[4] = ulpinv; } } else if (diftru[1] == 0.f) { if (dif[1] > abnorm * ulp) { result[4] = ulpinv; } } else if (dif[5] == 0.f) { if (diftru[5] > abnorm * ulp) { result[4] = ulpinv; } } else if (diftru[5] == 0.f) { if (dif[5] > abnorm * ulp) { result[4] = ulpinv; } } else { /* Computing MAX */ r__3 = (r__1 = diftru[1] / dif[1], dabs(r__1)), r__4 = (r__2 = dif[1] / diftru[1], dabs(r__2)); ratio1 = dmax(r__3,r__4); /* Computing MAX */ r__3 = (r__1 = diftru[5] / dif[5], dabs(r__1)), r__4 = (r__2 = dif[5] / diftru[5], dabs(r__2)); ratio2 = dmax(r__3,r__4); result[4] = dmax(ratio1,ratio2); } ntestt += 4; /* Print out tests which fail. */ for (j = 1; j <= 4; ++j) { if (result[j] >= thrsh2) { /* If this is the first test to fail, */ /* print a header to the data file. */ if (nerrs == 0) { io___43.ciunit = *nout; s_wsfe(&io___43); do_fio(&c__1, "SXV", (ftnlen)3); e_wsfe(); /* Print out messages for built-in examples */ /* Matrix types */ io___44.ciunit = *nout; s_wsfe(&io___44); e_wsfe(); /* Tests performed */ io___45.ciunit = *nout; s_wsfe(&io___45); do_fio(&c__1, "'", (ftnlen)1); do_fio(&c__1, "transpose", (ftnlen)9); do_fio(&c__1, "'", (ftnlen)1); e_wsfe(); } ++nerrs; if (result[j] < 1e4f) { io___46.ciunit = *nout; s_wsfe(&io___46); do_fio(&c__1, (char *)&nptknt, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&j, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&result[j], (ftnlen)sizeof(real)); e_wsfe(); } else { io___47.ciunit = *nout; s_wsfe(&io___47); do_fio(&c__1, (char *)&nptknt, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&j, (ftnlen)sizeof(integer)); do_fio(&c__1, (char *)&result[j], (ftnlen)sizeof(real)); e_wsfe(); } } /* L130: */ } L140: goto L90; L150: /* Summary */ alasvm_("SXV", nout, &nerrs, &ntestt, &c__0); work[1] = (real) maxwrk; return 0; /* End of SDRGVX */ } /* sdrgvx_ */