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REAL FUNCTION SMFLOP( OPS, TIME, INFO )
*
* -- LAPACK timing routine (version 3.0) --
* Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,
* Courant Institute, Argonne National Lab, and Rice University
* March 31, 1993
*
* .. Scalar Arguments ..
INTEGER INFO
REAL OPS, TIME
* ..
*
* Purpose
* =======
*
* SMFLOP computes the megaflop rate given the number of operations
* and time in seconds. This is basically just a divide operation,
* but care is taken not to divide by zero.
*
* Arguments
* =========
*
* OPS (input) REAL
* The number of floating point operations.
* performed by the timed routine.
*
* TIME (input) REAL
* The total time in seconds.
*
* INFO (input) INTEGER
* The return code from the timed routine. If INFO is not 0,
* then SMFLOP returns a negative value, indicating an error.
*
* =====================================================================
*
* .. Parameters ..
REAL ZERO
PARAMETER ( ZERO = 0.0E+0 )
* ..
* .. Intrinsic Functions ..
INTRINSIC ABS, REAL
* ..
* .. Executable Statements ..
*
IF( TIME.LE.ZERO ) THEN
SMFLOP = ZERO
ELSE
SMFLOP = OPS / ( 1.0E6*TIME )
END IF
IF( INFO.NE.0 )
$ SMFLOP = -ABS( REAL( INFO ) )
RETURN
*
* End of SMFLOP
*
END
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