305 lines
9.4 KiB
FortranFixed
305 lines
9.4 KiB
FortranFixed
SUBROUTINE CTIMSP( LINE, NN, NVAL, NNS, NSVAL, LA, TIMMIN, A, B,
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$ WORK, IWORK, RESLTS, LDR1, LDR2, LDR3, NOUT )
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*
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* -- LAPACK timing routine (version 3.1) --
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* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
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* October 2006
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*
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* .. Scalar Arguments ..
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CHARACTER*80 LINE
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INTEGER LA, LDR1, LDR2, LDR3, NN, NNS, NOUT
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REAL TIMMIN
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* ..
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* .. Array Arguments ..
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INTEGER IWORK( * ), NSVAL( * ), NVAL( * )
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REAL RESLTS( LDR1, LDR2, LDR3, * )
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COMPLEX A( * ), B( * ), WORK( * )
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* ..
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*
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* Purpose
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* =======
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*
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* CTIMSP times CSPTRF, -TRS, and -TRI.
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*
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* Arguments
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* =========
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*
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* LINE (input) CHARACTER*80
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* The input line that requested this routine. The first six
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* characters contain either the name of a subroutine or a
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* generic path name. The remaining characters may be used to
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* specify the individual routines to be timed. See ATIMIN for
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* a full description of the format of the input line.
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*
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* NN (input) INTEGER
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* The number of values of N contained in the vector NVAL.
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*
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* NVAL (input) INTEGER array, dimension (NN)
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* The values of the matrix size N.
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*
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* NNS (input) INTEGER
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* The number of values of NRHS contained in the vector NSVAL.
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*
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* NSVAL (input) INTEGER array, dimension (NNS)
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* The values of the number of right hand sides NRHS.
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*
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* LA (input) INTEGER
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* The size of the arrays A, B, and C.
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*
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* TIMMIN (input) REAL
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* The minimum time a subroutine will be timed.
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*
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* A (workspace) COMPLEX array, dimension (LA)
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*
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* B (workspace) COMPLEX array, dimension (LA)
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*
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* WORK (workspace) COMPLEX array, dimension (NMAX)
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*
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* IWORK (workspace) INTEGER array, dimension (NMAX)
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* where NMAX is the maximum value of N permitted.
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*
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* RESLTS (output) REAL array, dimension
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* (LDR1,LDR2,LDR3,NSUBS)
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* The timing results for each subroutine over the relevant
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* values of N.
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*
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* LDR1 (input) INTEGER
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* The first dimension of RESLTS. LDR1 >= max(4,NNB).
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*
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* LDR2 (input) INTEGER
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* The second dimension of RESLTS. LDR2 >= max(1,NN).
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*
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* LDR3 (input) INTEGER
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* The third dimension of RESLTS. LDR3 >= 2.
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*
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* NOUT (input) INTEGER
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* The unit number for output.
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*
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* =====================================================================
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*
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* .. Parameters ..
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INTEGER NSUBS
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PARAMETER ( NSUBS = 3 )
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* ..
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* .. Local Scalars ..
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CHARACTER UPLO
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CHARACTER*3 PATH
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CHARACTER(32) CNAME
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INTEGER I, IC, ICL, IN, INFO, ISUB, IUPLO, LDA, LDB,
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$ MAT, N, NRHS
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REAL OPS, S1, S2, TIME, UNTIME
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* ..
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* .. Local Arrays ..
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LOGICAL TIMSUB( NSUBS )
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CHARACTER UPLOS( 2 )
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CHARACTER(32) SUBNAM( NSUBS )
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INTEGER LAVAL( 1 )
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* ..
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* .. External Functions ..
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INTEGER ILA_LEN_TRIM
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EXTERNAL ILA_LEN_TRIM
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LOGICAL LSAME
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REAL SECOND, SMFLOP, SOPLA
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EXTERNAL LSAME, SECOND, SMFLOP, SOPLA
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* ..
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* .. External Subroutines ..
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EXTERNAL ATIMCK, ATIMIN, CCOPY, CSPTRF, CSPTRI, CSPTRS,
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$ CTIMMG, SPRTBL
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* ..
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* .. Intrinsic Functions ..
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INTRINSIC MOD, REAL
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* ..
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* .. Data statements ..
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DATA UPLOS / 'U', 'L' /
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DATA SUBNAM / 'CSPTRF', 'CSPTRS', 'CSPTRI' /
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* ..
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* .. Executable Statements ..
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*
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* Extract the timing request from the input line.
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*
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PATH( 1: 1 ) = 'Complex precision'
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PATH( 2: 3 ) = 'SP'
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CALL ATIMIN( PATH, LINE, NSUBS, SUBNAM, TIMSUB, NOUT, INFO )
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IF( INFO.NE.0 )
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$ GO TO 120
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*
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* Check that N*(N+1)/2 <= LA for the input values.
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*
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CNAME = LINE( 1: 6 )
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LAVAL( 1 ) = LA
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CALL ATIMCK( 4, CNAME, NN, NVAL, 1, LAVAL, NOUT, INFO )
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IF( INFO.GT.0 ) THEN
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WRITE( NOUT, FMT = 9999 )CNAME(1:ILA_LEN_TRIM(CNAME))
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GO TO 120
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END IF
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*
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* Do first for UPLO = 'U', then for UPLO = 'L'
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*
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DO 90 IUPLO = 1, 2
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UPLO = UPLOS( IUPLO )
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IF( LSAME( UPLO, 'U' ) ) THEN
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MAT = 9
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ELSE
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MAT = -9
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END IF
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*
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* Do for each value of N in NVAL.
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*
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DO 80 IN = 1, NN
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N = NVAL( IN )
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LDA = N*( N+1 ) / 2
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*
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* Time CSPTRF
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*
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IF( TIMSUB( 1 ) ) THEN
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CALL CTIMMG( MAT, N, N, A, LDA, 0, 0 )
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IC = 0
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S1 = SECOND( )
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10 CONTINUE
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CALL CSPTRF( UPLO, N, A, IWORK, INFO )
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S2 = SECOND( )
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TIME = S2 - S1
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IC = IC + 1
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IF( TIME.LT.TIMMIN ) THEN
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CALL CTIMMG( MAT, N, N, A, LDA, 0, 0 )
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GO TO 10
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END IF
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*
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* Subtract the time used in CTIMMG.
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*
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ICL = 1
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S1 = SECOND( )
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20 CONTINUE
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S2 = SECOND( )
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UNTIME = S2 - S1
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ICL = ICL + 1
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IF( ICL.LE.IC ) THEN
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CALL CTIMMG( MAT, N, N, A, LDA, 0, 0 )
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GO TO 20
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END IF
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*
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TIME = ( TIME-UNTIME ) / REAL( IC )
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OPS = SOPLA( 'CSPTRF', N, N, 0, 0, 0 )
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RESLTS( 1, IN, IUPLO, 1 ) = SMFLOP( OPS, TIME, INFO )
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*
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ELSE
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IC = 0
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CALL CTIMMG( MAT, N, N, A, LDA, 0, 0 )
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END IF
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*
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* Generate another matrix and factor it using CSPTRF so
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* that the factored form can be used in timing the other
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* routines.
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*
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IF( IC.NE.1 )
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$ CALL CSPTRF( UPLO, N, A, IWORK, INFO )
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*
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* Time CSPTRI
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*
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IF( TIMSUB( 3 ) ) THEN
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CALL CCOPY( LDA, A, 1, B, 1 )
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IC = 0
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S1 = SECOND( )
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30 CONTINUE
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CALL CSPTRI( UPLO, N, B, IWORK, WORK, INFO )
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S2 = SECOND( )
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TIME = S2 - S1
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IC = IC + 1
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IF( TIME.LT.TIMMIN ) THEN
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CALL CCOPY( LDA, A, 1, B, 1 )
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GO TO 30
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END IF
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*
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* Subtract the time used in CCOPY.
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*
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ICL = 1
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S1 = SECOND( )
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40 CONTINUE
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S2 = SECOND( )
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UNTIME = S2 - S1
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ICL = ICL + 1
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IF( ICL.LE.IC ) THEN
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CALL CCOPY( LDA, A, 1, B, 1 )
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GO TO 40
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END IF
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*
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TIME = ( TIME-UNTIME ) / REAL( IC )
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OPS = SOPLA( 'CSPTRI', N, N, 0, 0, 0 )
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RESLTS( 1, IN, IUPLO, 3 ) = SMFLOP( OPS, TIME, INFO )
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END IF
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*
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* Time CSPTRS
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*
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IF( TIMSUB( 2 ) ) THEN
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DO 70 I = 1, NNS
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NRHS = NSVAL( I )
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LDB = N
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IF( MOD( LDB, 2 ).EQ.0 )
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$ LDB = LDB + 1
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CALL CTIMMG( 0, N, NRHS, B, LDB, 0, 0 )
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IC = 0
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S1 = SECOND( )
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50 CONTINUE
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CALL CSPTRS( UPLO, N, NRHS, A, IWORK, B, LDB, INFO )
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S2 = SECOND( )
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TIME = S2 - S1
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IC = IC + 1
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IF( TIME.LT.TIMMIN ) THEN
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CALL CTIMMG( 0, N, NRHS, B, LDB, 0, 0 )
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GO TO 50
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END IF
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*
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* Subtract the time used in CTIMMG.
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*
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ICL = 1
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S1 = SECOND( )
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60 CONTINUE
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S2 = SECOND( )
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UNTIME = S2 - S1
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ICL = ICL + 1
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IF( ICL.LE.IC ) THEN
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CALL CTIMMG( 0, N, NRHS, B, LDB, 0, 0 )
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GO TO 60
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END IF
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*
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TIME = ( TIME-UNTIME ) / REAL( IC )
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OPS = SOPLA( 'CSPTRS', N, NRHS, 0, 0, 0 )
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RESLTS( I, IN, IUPLO, 2 ) = SMFLOP( OPS, TIME, INFO )
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70 CONTINUE
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END IF
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80 CONTINUE
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90 CONTINUE
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*
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* Print tables of results for each timed routine.
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*
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DO 110 ISUB = 1, NSUBS
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IF( .NOT.TIMSUB( ISUB ) )
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$ GO TO 110
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WRITE( NOUT, FMT = 9998 )
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$ SUBNAM( ISUB )(1:ILA_LEN_TRIM( SUBNAM( ISUB ) ))
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DO 100 IUPLO = 1, 2
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WRITE( NOUT, FMT = 9997 )
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$ SUBNAM( ISUB )(1:ILA_LEN_TRIM( SUBNAM( ISUB ) )),
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$ UPLOS( IUPLO )
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IF( ISUB.EQ.1 ) THEN
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CALL SPRTBL( ' ', 'N', 1, LAVAL, NN, NVAL, 1,
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$ RESLTS( 1, 1, IUPLO, 1 ), LDR1, LDR2, NOUT )
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ELSE IF( ISUB.EQ.2 ) THEN
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CALL SPRTBL( 'NRHS', 'N', NNS, NSVAL, NN, NVAL, 1,
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$ RESLTS( 1, 1, IUPLO, 2 ), LDR1, LDR2, NOUT )
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ELSE IF( ISUB.EQ.3 ) THEN
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CALL SPRTBL( ' ', 'N', 1, LAVAL, NN, NVAL, 1,
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$ RESLTS( 1, 1, IUPLO, 3 ), LDR1, LDR2, NOUT )
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END IF
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100 CONTINUE
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110 CONTINUE
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120 CONTINUE
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9999 FORMAT( 1X, A, ' timing run not attempted', / )
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9998 FORMAT( / ' *** Speed of ', A, ' in megaflops ***', / )
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9997 FORMAT( 5X, A, ' with UPLO = ''', A1, '''', / )
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RETURN
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*
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* End of CTIMSP
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*
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END
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