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