14 lines
917 B
Text
14 lines
917 B
Text
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Flops.c is a 'c' program which attempts to estimate your systems
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floating-point 'MFLOPS' rating for the FADD, FSUB, FMUL, and FDIV
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operations based on specific 'instruction mixes' (discussed below).
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The program provides an estimate of PEAK MFLOPS performance by making
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maximal use of register variables with minimal interaction with main
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memory. The execution loops are all small so that they will fit in
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any cache. Flops.c can be used along with Linpack and the Livermore
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kernels (which exercise memory much more extensively) to gain further
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insight into the limits of system performance. The flops.c execution
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modules include various percent weightings of FDIV's (from 0% to 25%
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FDIV's) so that the range of performance can be obtained when using
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FDIV's. FDIV's, being computationally more intensive than FADD's or
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FMUL's, can impact performance considerably on some systems.
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