3 * =========== DOCUMENTATION ===========
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
19 *> SCHKRFP is the main test program for the REAL linear
20 *> equation routines with RFP storage format
29 *> The number of different values that can be used for each of
33 *> The maximum number of right hand sides
38 *> The maximum allowable value for N.
41 *> The unit number for input
44 *> The unit number for output
50 *> \author Univ. of Tennessee
51 *> \author Univ. of California Berkeley
52 *> \author Univ. of Colorado Denver
57 *> \ingroup single_lin
59 * =====================================================================
62 * -- LAPACK test routine (version 3.4.1) --
63 * -- LAPACK is a software package provided by Univ. of Tennessee, --
64 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
67 * =====================================================================
71 PARAMETER ( MAXIN = 12 )
73 PARAMETER ( NMAX = 50 )
75 PARAMETER ( MAXRHS = 16 )
77 PARAMETER ( NTYPES = 9 )
79 PARAMETER ( NIN = 5, NOUT = 6 )
83 INTEGER VERS_MAJOR, VERS_MINOR, VERS_PATCH
84 INTEGER I, NN, NNS, NNT
85 REAL EPS, S1, S2, THRESH
88 INTEGER NVAL( MAXIN ), NSVAL( MAXIN ), NTVAL( NTYPES )
89 REAL WORKA( NMAX, NMAX )
90 REAL WORKASAV( NMAX, NMAX )
91 REAL WORKB( NMAX, MAXRHS )
92 REAL WORKXACT( NMAX, MAXRHS )
93 REAL WORKBSAV( NMAX, MAXRHS )
94 REAL WORKX( NMAX, MAXRHS )
95 REAL WORKAFAC( NMAX, NMAX )
96 REAL WORKAINV( NMAX, NMAX )
97 REAL WORKARF( (NMAX*(NMAX+1))/2 )
98 REAL WORKAP( (NMAX*(NMAX+1))/2 )
99 REAL WORKARFINV( (NMAX*(NMAX+1))/2 )
100 REAL S_WORK_SLATMS( 3 * NMAX )
101 REAL S_WORK_SPOT01( NMAX )
102 REAL S_TEMP_SPOT02( NMAX, MAXRHS )
103 REAL S_TEMP_SPOT03( NMAX, NMAX )
104 REAL S_WORK_SLANSY( NMAX )
105 REAL S_WORK_SPOT02( NMAX )
106 REAL S_WORK_SPOT03( NMAX )
108 * .. External Functions ..
110 EXTERNAL SLAMCH, SECOND
112 * .. External Subroutines ..
113 EXTERNAL ILAVER, SDRVRFP, SDRVRF1, SDRVRF2, SDRVRF3,
116 * .. Executable Statements ..
125 * Report LAPACK version tag (e.g. LAPACK-3.2.0)
127 CALL ILAVER( VERS_MAJOR, VERS_MINOR, VERS_PATCH )
128 WRITE( NOUT, FMT = 9994 ) VERS_MAJOR, VERS_MINOR, VERS_PATCH
130 * Read the values of N
132 READ( NIN, FMT = * )NN
134 WRITE( NOUT, FMT = 9996 )' NN ', NN, 1
137 ELSE IF( NN.GT.MAXIN ) THEN
138 WRITE( NOUT, FMT = 9995 )' NN ', NN, MAXIN
142 READ( NIN, FMT = * )( NVAL( I ), I = 1, NN )
144 IF( NVAL( I ).LT.0 ) THEN
145 WRITE( NOUT, FMT = 9996 )' M ', NVAL( I ), 0
147 ELSE IF( NVAL( I ).GT.NMAX ) THEN
148 WRITE( NOUT, FMT = 9995 )' M ', NVAL( I ), NMAX
153 $ WRITE( NOUT, FMT = 9993 )'N ', ( NVAL( I ), I = 1, NN )
155 * Read the values of NRHS
157 READ( NIN, FMT = * )NNS
159 WRITE( NOUT, FMT = 9996 )' NNS', NNS, 1
162 ELSE IF( NNS.GT.MAXIN ) THEN
163 WRITE( NOUT, FMT = 9995 )' NNS', NNS, MAXIN
167 READ( NIN, FMT = * )( NSVAL( I ), I = 1, NNS )
169 IF( NSVAL( I ).LT.0 ) THEN
170 WRITE( NOUT, FMT = 9996 )'NRHS', NSVAL( I ), 0
172 ELSE IF( NSVAL( I ).GT.MAXRHS ) THEN
173 WRITE( NOUT, FMT = 9995 )'NRHS', NSVAL( I ), MAXRHS
178 $ WRITE( NOUT, FMT = 9993 )'NRHS', ( NSVAL( I ), I = 1, NNS )
180 * Read the matrix types
182 READ( NIN, FMT = * )NNT
184 WRITE( NOUT, FMT = 9996 )' NMA', NNT, 1
187 ELSE IF( NNT.GT.NTYPES ) THEN
188 WRITE( NOUT, FMT = 9995 )' NMA', NNT, NTYPES
192 READ( NIN, FMT = * )( NTVAL( I ), I = 1, NNT )
194 IF( NTVAL( I ).LT.0 ) THEN
195 WRITE( NOUT, FMT = 9996 )'TYPE', NTVAL( I ), 0
197 ELSE IF( NTVAL( I ).GT.NTYPES ) THEN
198 WRITE( NOUT, FMT = 9995 )'TYPE', NTVAL( I ), NTYPES
203 $ WRITE( NOUT, FMT = 9993 )'TYPE', ( NTVAL( I ), I = 1, NNT )
205 * Read the threshold value for the test ratios.
207 READ( NIN, FMT = * )THRESH
208 WRITE( NOUT, FMT = 9992 )THRESH
210 * Read the flag that indicates whether to test the error exits.
212 READ( NIN, FMT = * )TSTERR
215 WRITE( NOUT, FMT = 9999 )
220 WRITE( NOUT, FMT = 9999 )
224 * Calculate and print the machine dependent constants.
226 EPS = SLAMCH( 'Underflow threshold' )
227 WRITE( NOUT, FMT = 9991 )'underflow', EPS
228 EPS = SLAMCH( 'Overflow threshold' )
229 WRITE( NOUT, FMT = 9991 )'overflow ', EPS
230 EPS = SLAMCH( 'Epsilon' )
231 WRITE( NOUT, FMT = 9991 )'precision', EPS
232 WRITE( NOUT, FMT = * )
234 * Test the error exit of:
237 $ CALL SERRRFP( NOUT )
239 * Test the routines: spftrf, spftri, spftrs (as in SDRVPO).
240 * This also tests the routines: stfsm, stftri, stfttr, strttf.
242 CALL SDRVRFP( NOUT, NN, NVAL, NNS, NSVAL, NNT, NTVAL, THRESH,
243 $ WORKA, WORKASAV, WORKAFAC, WORKAINV, WORKB,
244 $ WORKBSAV, WORKXACT, WORKX, WORKARF, WORKARFINV,
245 $ S_WORK_SLATMS, S_WORK_SPOT01, S_TEMP_SPOT02,
246 $ S_TEMP_SPOT03, S_WORK_SLANSY, S_WORK_SPOT02,
249 * Test the routine: slansf
251 CALL SDRVRF1( NOUT, NN, NVAL, THRESH, WORKA, NMAX, WORKARF,
254 * Test the conversion routines:
255 * stfttp, stpttf, stfttr, strttf, strttp and stpttr.
257 CALL SDRVRF2( NOUT, NN, NVAL, WORKA, NMAX, WORKARF,
260 * Test the routine: stfsm
262 CALL SDRVRF3( NOUT, NN, NVAL, THRESH, WORKA, NMAX, WORKARF,
263 + WORKAINV, WORKAFAC, S_WORK_SLANSY,
264 + S_WORK_SPOT03, S_WORK_SPOT01 )
267 * Test the routine: ssfrk
269 CALL SDRVRF4( NOUT, NN, NVAL, THRESH, WORKA, WORKAFAC, NMAX,
270 + WORKARF, WORKAINV, NMAX, S_WORK_SLANSY)
274 WRITE( NOUT, FMT = 9998 )
275 WRITE( NOUT, FMT = 9997 )S2 - S1
277 9999 FORMAT( / ' Execution not attempted due to input errors' )
278 9998 FORMAT( / ' End of tests' )
279 9997 FORMAT( ' Total time used = ', F12.2, ' seconds', / )
280 9996 FORMAT( ' !! Invalid input value: ', A4, '=', I6, '; must be >=',
282 9995 FORMAT( ' !! Invalid input value: ', A4, '=', I6, '; must be <=',
284 9994 FORMAT( / ' Tests of the REAL LAPACK RFP routines ',
285 $ / ' LAPACK VERSION ', I1, '.', I1, '.', I1,
286 $ / / ' The following parameter values will be used:' )
287 9993 FORMAT( 4X, A4, ': ', 10I6, / 11X, 10I6 )
288 9992 FORMAT( / ' Routines pass computational tests if test ratio is ',
289 $ 'less than', F8.2, / )
290 9991 FORMAT( ' Relative machine ', A, ' is taken to be', D16.6 )