#include "blaswrap.h" /* -- translated by f2c (version 19990503). You must link the resulting object file with the libraries: -lf2c -lm (in that order) */ #include "f2c.h" /* Common Block Declarations */ struct { integer infot, nunit; logical ok, lerr; } infoc_; #define infoc_1 infoc_ struct { char srnamt[6]; } srnamc_; #define srnamc_1 srnamc_ /* Table of constant values */ static integer c__0 = 0; static integer c_n1 = -1; static integer c__1 = 1; static doublereal c_b60 = 0.; static integer c__2 = 2; /* Subroutine */ int ddrvpp_(logical *dotype, integer *nn, integer *nval, integer *nrhs, doublereal *thresh, logical *tsterr, integer *nmax, doublereal *a, doublereal *afac, doublereal *asav, doublereal *b, doublereal *bsav, doublereal *x, doublereal *xact, doublereal *s, doublereal *work, doublereal *rwork, integer *iwork, integer *nout) { /* Initialized data */ static integer iseedy[4] = { 1988,1989,1990,1991 }; static char uplos[1*2] = "U" "L"; static char facts[1*3] = "F" "N" "E"; static char packs[1*2] = "C" "R"; static char equeds[1*2] = "N" "Y"; /* Format strings */ static char fmt_9999[] = "(1x,a6,\002, UPLO='\002,a1,\002', N =\002,i5" ",\002, type \002,i1,\002, test(\002,i1,\002)=\002,g12.5)"; static char fmt_9997[] = "(1x,a6,\002, FACT='\002,a1,\002', UPLO='\002,a" "1,\002', N=\002,i5,\002, EQUED='\002,a1,\002', type \002,i1,\002" ", test(\002,i1,\002)=\002,g12.5)"; static char fmt_9998[] = "(1x,a6,\002, FACT='\002,a1,\002', UPLO='\002,a" "1,\002', N=\002,i5,\002, type \002,i1,\002, test(\002,i1,\002)" "=\002,g12.5)"; /* System generated locals */ address a__1[2]; integer i__1, i__2, i__3, i__4, i__5[2]; char ch__1[2]; /* Builtin functions Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen); integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void); /* Subroutine */ int s_cat(char *, char **, integer *, integer *, ftnlen); /* Local variables */ static char fact[1]; static integer ioff, mode; static doublereal amax; static char path[3]; static integer imat, info; static char dist[1], uplo[1], type__[1]; static integer nrun, i__, k, n, ifact; extern /* Subroutine */ int dget04_(integer *, integer *, doublereal *, integer *, doublereal *, integer *, doublereal *, doublereal *); static integer nfail, iseed[4], nfact; extern doublereal dget06_(doublereal *, doublereal *); extern logical lsame_(char *, char *); static char equed[1]; static doublereal roldc, rcond, scond; static integer nimat; extern /* Subroutine */ int dppt01_(char *, integer *, doublereal *, doublereal *, doublereal *, doublereal *), dppt02_(char *, integer *, integer *, doublereal *, doublereal *, integer *, doublereal *, integer *, doublereal *, doublereal *); static doublereal anorm; extern /* Subroutine */ int dppt05_(char *, integer *, integer *, doublereal *, doublereal *, integer *, doublereal *, integer *, doublereal *, integer *, doublereal *, doublereal *, doublereal *), dcopy_(integer *, doublereal *, integer *, doublereal *, integer *); static logical equil; static integer iuplo, izero, nerrs, k1; extern /* Subroutine */ int dppsv_(char *, integer *, integer *, doublereal *, doublereal *, integer *, integer *); static logical zerot; static char xtype[1]; extern /* Subroutine */ int dlatb4_(char *, integer *, integer *, integer *, char *, integer *, integer *, doublereal *, integer *, doublereal *, char *), aladhd_(integer *, char *); static integer in, kl; extern /* Subroutine */ int alaerh_(char *, char *, integer *, integer *, char *, integer *, integer *, integer *, integer *, integer *, integer *, integer *, integer *, integer *); static logical prefac; static integer ku, nt; static doublereal rcondc; static logical nofact; static char packit[1]; static integer iequed; extern /* Subroutine */ int dlacpy_(char *, integer *, integer *, doublereal *, integer *, doublereal *, integer *), dlarhs_(char *, char *, char *, char *, integer *, integer *, integer *, integer *, integer *, doublereal *, integer *, doublereal *, integer *, doublereal *, integer *, integer *, integer *), dlaset_(char *, integer *, integer *, doublereal *, doublereal *, doublereal *, integer *); extern doublereal dlansp_(char *, char *, integer *, doublereal *, doublereal *); extern /* Subroutine */ int alasvm_(char *, integer *, integer *, integer *, integer *); static doublereal cndnum; extern /* Subroutine */ int dlaqsp_(char *, integer *, doublereal *, doublereal *, doublereal *, doublereal *, char *), dlatms_(integer *, integer *, char *, integer *, char *, doublereal *, integer *, doublereal *, doublereal *, integer *, integer *, char *, doublereal *, integer *, doublereal *, integer *); static doublereal ainvnm; extern /* Subroutine */ int dppequ_(char *, integer *, doublereal *, doublereal *, doublereal *, doublereal *, integer *), dpptrf_(char *, integer *, doublereal *, integer *), dpptri_(char *, integer *, doublereal *, integer *), derrvx_(char *, integer *); static doublereal result[6]; extern /* Subroutine */ int dppsvx_(char *, char *, integer *, integer *, doublereal *, doublereal *, char *, doublereal *, doublereal *, integer *, doublereal *, integer *, doublereal *, doublereal *, doublereal *, doublereal *, integer *, integer *); static integer lda, npp; /* Fortran I/O blocks */ static cilist io___49 = { 0, 0, 0, fmt_9999, 0 }; static cilist io___52 = { 0, 0, 0, fmt_9997, 0 }; static cilist io___53 = { 0, 0, 0, fmt_9998, 0 }; /* -- LAPACK test routine (version 3.0) -- Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., Courant Institute, Argonne National Lab, and Rice University June 30, 1999 Purpose ======= DDRVPP tests the driver routines DPPSV and -SVX. Arguments ========= DOTYPE (input) LOGICAL array, dimension (NTYPES) The matrix types to be used for testing. Matrices of type j (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) = .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used. 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. NRHS (input) INTEGER The number of right hand side vectors to be generated for each linear system. THRESH (input) DOUBLE PRECISION 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. TSTERR (input) LOGICAL Flag that indicates whether error exits are to be tested. NMAX (input) INTEGER The maximum value permitted for N, used in dimensioning the work arrays. A (workspace) DOUBLE PRECISION array, dimension (NMAX*(NMAX+1)/2) AFAC (workspace) DOUBLE PRECISION array, dimension (NMAX*(NMAX+1)/2) ASAV (workspace) DOUBLE PRECISION array, dimension (NMAX*(NMAX+1)/2) B (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS) BSAV (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS) X (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS) XACT (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS) S (workspace) DOUBLE PRECISION array, dimension (NMAX) WORK (workspace) DOUBLE PRECISION array, dimension (NMAX*max(3,NRHS)) RWORK (workspace) DOUBLE PRECISION array, dimension (NMAX+2*NRHS) IWORK (workspace) INTEGER array, dimension (NMAX) NOUT (input) INTEGER The unit number for output. ===================================================================== Parameter adjustments */ --iwork; --rwork; --work; --s; --xact; --x; --bsav; --b; --asav; --afac; --a; --nval; --dotype; /* Function Body Initialize constants and the random number seed. */ s_copy(path, "Double precision", (ftnlen)1, (ftnlen)16); s_copy(path + 1, "PP", (ftnlen)2, (ftnlen)2); nrun = 0; nfail = 0; nerrs = 0; for (i__ = 1; i__ <= 4; ++i__) { iseed[i__ - 1] = iseedy[i__ - 1]; /* L10: */ } /* Test the error exits */ if (*tsterr) { derrvx_(path, nout); } infoc_1.infot = 0; /* Do for each value of N in NVAL */ i__1 = *nn; for (in = 1; in <= i__1; ++in) { n = nval[in]; lda = max(n,1); npp = n * (n + 1) / 2; *(unsigned char *)xtype = 'N'; nimat = 9; if (n <= 0) { nimat = 1; } i__2 = nimat; for (imat = 1; imat <= i__2; ++imat) { /* Do the tests only if DOTYPE( IMAT ) is true. */ if (! dotype[imat]) { goto L130; } /* Skip types 3, 4, or 5 if the matrix size is too small. */ zerot = imat >= 3 && imat <= 5; if (zerot && n < imat - 2) { goto L130; } /* Do first for UPLO = 'U', then for UPLO = 'L' */ for (iuplo = 1; iuplo <= 2; ++iuplo) { *(unsigned char *)uplo = *(unsigned char *)&uplos[iuplo - 1]; *(unsigned char *)packit = *(unsigned char *)&packs[iuplo - 1] ; /* Set up parameters with DLATB4 and generate a test matrix with DLATMS. */ dlatb4_(path, &imat, &n, &n, type__, &kl, &ku, &anorm, &mode, &cndnum, dist); rcondc = 1. / cndnum; s_copy(srnamc_1.srnamt, "DLATMS", (ftnlen)6, (ftnlen)6); dlatms_(&n, &n, dist, iseed, type__, &rwork[1], &mode, & cndnum, &anorm, &kl, &ku, packit, &a[1], &lda, &work[ 1], &info); /* Check error code from DLATMS. */ if (info != 0) { alaerh_(path, "DLATMS", &info, &c__0, uplo, &n, &n, &c_n1, &c_n1, &c_n1, &imat, &nfail, &nerrs, nout); goto L120; } /* For types 3-5, zero one row and column of the matrix to test that INFO is returned correctly. */ if (zerot) { if (imat == 3) { izero = 1; } else if (imat == 4) { izero = n; } else { izero = n / 2 + 1; } /* Set row and column IZERO of A to 0. */ if (iuplo == 1) { ioff = (izero - 1) * izero / 2; i__3 = izero - 1; for (i__ = 1; i__ <= i__3; ++i__) { a[ioff + i__] = 0.; /* L20: */ } ioff += izero; i__3 = n; for (i__ = izero; i__ <= i__3; ++i__) { a[ioff] = 0.; ioff += i__; /* L30: */ } } else { ioff = izero; i__3 = izero - 1; for (i__ = 1; i__ <= i__3; ++i__) { a[ioff] = 0.; ioff = ioff + n - i__; /* L40: */ } ioff -= izero; i__3 = n; for (i__ = izero; i__ <= i__3; ++i__) { a[ioff + i__] = 0.; /* L50: */ } } } else { izero = 0; } /* Save a copy of the matrix A in ASAV. */ dcopy_(&npp, &a[1], &c__1, &asav[1], &c__1); for (iequed = 1; iequed <= 2; ++iequed) { *(unsigned char *)equed = *(unsigned char *)&equeds[ iequed - 1]; if (iequed == 1) { nfact = 3; } else { nfact = 1; } i__3 = nfact; for (ifact = 1; ifact <= i__3; ++ifact) { *(unsigned char *)fact = *(unsigned char *)&facts[ ifact - 1]; prefac = lsame_(fact, "F"); nofact = lsame_(fact, "N"); equil = lsame_(fact, "E"); if (zerot) { if (prefac) { goto L100; } rcondc = 0.; } else if (! lsame_(fact, "N")) { /* Compute the condition number for comparison with the value returned by DPPSVX (FACT = 'N' reuses the condition number from the previous iteration with FACT = 'F'). */ dcopy_(&npp, &asav[1], &c__1, &afac[1], &c__1); if (equil || iequed > 1) { /* Compute row and column scale factors to equilibrate the matrix A. */ dppequ_(uplo, &n, &afac[1], &s[1], &scond, & amax, &info); if (info == 0 && n > 0) { if (iequed > 1) { scond = 0.; } /* Equilibrate the matrix. */ dlaqsp_(uplo, &n, &afac[1], &s[1], &scond, &amax, equed); } } /* Save the condition number of the non-equilibrated system for use in DGET04. */ if (equil) { roldc = rcondc; } /* Compute the 1-norm of A. */ anorm = dlansp_("1", uplo, &n, &afac[1], &rwork[1] ); /* Factor the matrix A. */ dpptrf_(uplo, &n, &afac[1], &info); /* Form the inverse of A. */ dcopy_(&npp, &afac[1], &c__1, &a[1], &c__1); dpptri_(uplo, &n, &a[1], &info); /* Compute the 1-norm condition number of A. */ ainvnm = dlansp_("1", uplo, &n, &a[1], &rwork[1]); if (anorm <= 0. || ainvnm <= 0.) { rcondc = 1.; } else { rcondc = 1. / anorm / ainvnm; } } /* Restore the matrix A. */ dcopy_(&npp, &asav[1], &c__1, &a[1], &c__1); /* Form an exact solution and set the right hand side. */ s_copy(srnamc_1.srnamt, "DLARHS", (ftnlen)6, (ftnlen) 6); dlarhs_(path, xtype, uplo, " ", &n, &n, &kl, &ku, nrhs, &a[1], &lda, &xact[1], &lda, &b[1], & lda, iseed, &info); *(unsigned char *)xtype = 'C'; dlacpy_("Full", &n, nrhs, &b[1], &lda, &bsav[1], &lda); if (nofact) { /* --- Test DPPSV --- Compute the L*L' or U'*U factorization of the matrix and solve the system. */ dcopy_(&npp, &a[1], &c__1, &afac[1], &c__1); dlacpy_("Full", &n, nrhs, &b[1], &lda, &x[1], & lda); s_copy(srnamc_1.srnamt, "DPPSV ", (ftnlen)6, ( ftnlen)6); dppsv_(uplo, &n, nrhs, &afac[1], &x[1], &lda, & info); /* Check error code from DPPSV . */ if (info != izero) { alaerh_(path, "DPPSV ", &info, &izero, uplo, & n, &n, &c_n1, &c_n1, nrhs, &imat, & nfail, &nerrs, nout); goto L70; } else if (info != 0) { goto L70; } /* Reconstruct matrix from factors and compute residual. */ dppt01_(uplo, &n, &a[1], &afac[1], &rwork[1], result); /* Compute residual of the computed solution. */ dlacpy_("Full", &n, nrhs, &b[1], &lda, &work[1], & lda); dppt02_(uplo, &n, nrhs, &a[1], &x[1], &lda, &work[ 1], &lda, &rwork[1], &result[1]); /* Check solution from generated exact solution. */ dget04_(&n, nrhs, &x[1], &lda, &xact[1], &lda, & rcondc, &result[2]); nt = 3; /* Print information about the tests that did not pass the threshold. */ i__4 = nt; for (k = 1; k <= i__4; ++k) { if (result[k - 1] >= *thresh) { if (nfail == 0 && nerrs == 0) { aladhd_(nout, path); } io___49.ciunit = *nout; s_wsfe(&io___49); do_fio(&c__1, "DPPSV ", (ftnlen)6); do_fio(&c__1, uplo, (ftnlen)1); do_fio(&c__1, (char *)&n, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&imat, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&k, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&result[k - 1], ( ftnlen)sizeof(doublereal)); e_wsfe(); ++nfail; } /* L60: */ } nrun += nt; L70: ; } /* --- Test DPPSVX --- */ if (! prefac && npp > 0) { dlaset_("Full", &npp, &c__1, &c_b60, &c_b60, & afac[1], &npp); } dlaset_("Full", &n, nrhs, &c_b60, &c_b60, &x[1], &lda); if (iequed > 1 && n > 0) { /* Equilibrate the matrix if FACT='F' and EQUED='Y'. */ dlaqsp_(uplo, &n, &a[1], &s[1], &scond, &amax, equed); } /* Solve the system and compute the condition number and error bounds using DPPSVX. */ s_copy(srnamc_1.srnamt, "DPPSVX", (ftnlen)6, (ftnlen) 6); dppsvx_(fact, uplo, &n, nrhs, &a[1], &afac[1], equed, &s[1], &b[1], &lda, &x[1], &lda, &rcond, & rwork[1], &rwork[*nrhs + 1], &work[1], &iwork[ 1], &info); /* Check the error code from DPPSVX. */ if (info != izero) { /* Writing concatenation */ i__5[0] = 1, a__1[0] = fact; i__5[1] = 1, a__1[1] = uplo; s_cat(ch__1, a__1, i__5, &c__2, (ftnlen)2); alaerh_(path, "DPPSVX", &info, &izero, ch__1, &n, &n, &c_n1, &c_n1, nrhs, &imat, &nfail, & nerrs, nout); goto L90; } if (info == 0) { if (! prefac) { /* Reconstruct matrix from factors and compute residual. */ dppt01_(uplo, &n, &a[1], &afac[1], &rwork[(* nrhs << 1) + 1], result); k1 = 1; } else { k1 = 2; } /* Compute residual of the computed solution. */ dlacpy_("Full", &n, nrhs, &bsav[1], &lda, &work[1] , &lda); dppt02_(uplo, &n, nrhs, &asav[1], &x[1], &lda, & work[1], &lda, &rwork[(*nrhs << 1) + 1], & result[1]); /* Check solution from generated exact solution. */ if (nofact || prefac && lsame_(equed, "N")) { dget04_(&n, nrhs, &x[1], &lda, &xact[1], &lda, &rcondc, &result[2]); } else { dget04_(&n, nrhs, &x[1], &lda, &xact[1], &lda, &roldc, &result[2]); } /* Check the error bounds from iterative refinement. */ dppt05_(uplo, &n, nrhs, &asav[1], &b[1], &lda, &x[ 1], &lda, &xact[1], &lda, &rwork[1], & rwork[*nrhs + 1], &result[3]); } else { k1 = 6; } /* Compare RCOND from DPPSVX with the computed value in RCONDC. */ result[5] = dget06_(&rcond, &rcondc); /* Print information about the tests that did not pass the threshold. */ for (k = k1; k <= 6; ++k) { if (result[k - 1] >= *thresh) { if (nfail == 0 && nerrs == 0) { aladhd_(nout, path); } if (prefac) { io___52.ciunit = *nout; s_wsfe(&io___52); do_fio(&c__1, "DPPSVX", (ftnlen)6); do_fio(&c__1, fact, (ftnlen)1); do_fio(&c__1, uplo, (ftnlen)1); do_fio(&c__1, (char *)&n, (ftnlen)sizeof( integer)); do_fio(&c__1, equed, (ftnlen)1); do_fio(&c__1, (char *)&imat, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&k, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&result[k - 1], ( ftnlen)sizeof(doublereal)); e_wsfe(); } else { io___53.ciunit = *nout; s_wsfe(&io___53); do_fio(&c__1, "DPPSVX", (ftnlen)6); do_fio(&c__1, fact, (ftnlen)1); do_fio(&c__1, uplo, (ftnlen)1); do_fio(&c__1, (char *)&n, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&imat, (ftnlen) sizeof(integer)); do_fio(&c__1, (char *)&k, (ftnlen)sizeof( integer)); do_fio(&c__1, (char *)&result[k - 1], ( ftnlen)sizeof(doublereal)); e_wsfe(); } ++nfail; } /* L80: */ } nrun = nrun + 7 - k1; L90: L100: ; } /* L110: */ } L120: ; } L130: ; } /* L140: */ } /* Print a summary of the results. */ alasvm_(path, nout, &nfail, &nrun, &nerrs); return 0; /* End of DDRVPP */ } /* ddrvpp_ */