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authorzuntum <zuntum>2001-10-31 22:52:58 +0000
committerzuntum <zuntum>2001-10-31 22:52:58 +0000
commit7e9524f1017cb18948282b999e45c15b8b9e6dee (patch)
treeb3c17888184b1b17ed1b1fa28f1697197bb0b4f6 /benchmarks/flops/DESCR
parent41c8c3cd74ce618106e762374834328ba0c18a8c (diff)
downloadpkgsrc-7e9524f1017cb18948282b999e45c15b8b9e6dee.tar.gz
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+ Flops.c is a 'c' program which attempts to estimate your systems
+ floating-point 'MFLOPS' rating for the FADD, FSUB, FMUL, and FDIV
+ operations based on specific 'instruction mixes' (discussed below).
+ The program provides an estimate of PEAK MFLOPS performance by making
+ maximal use of register variables with minimal interaction with main
+ memory. The execution loops are all small so that they will fit in
+ any cache. Flops.c can be used along with Linpack and the Livermore
+ kernels (which exercise memory much more extensively) to gain further
+ insight into the limits of system performance. The flops.c execution
+ modules include various percent weightings of FDIV's (from 0% to 25%
+ FDIV's) so that the range of performance can be obtained when using
+ FDIV's. FDIV's, being computationally more intensive than FADD's or
+ FMUL's, can impact performance considerably on some systems.