dgh%dgh@Sun.COM (David Hough) (08/04/87)
I've had several requests for benchmark information
about the Sun-4/260. Here are some results for a Sun-4/260
with a 60 ns clock, 16 Meg of memory, and running the Beta-2
version of the Sys4 software release, which has been
released to our Beta sites. For comparison, I've listed
comparable results for a Sun-3/260 with a 40 ns clock, a 60
ns FPA, 16 Meg of memory, and SunOS 3.2 software. In all
cases except one optimization is at the highest available
level. The exception is Spice-3 for the Sun-4, for which
some modules won't compile at the highest level of optimiza-
tion; they're compiled at a lower level.
The benchmarks except Doduc's are discussed in the 3.2
version of the Floating-Point Programmer's Guide for the Sun
Workstation.
The Beta-2 software is preliminary. The final software
may well be faster, except for the Linpack 100x100 rolled
benchmark for which the generated code already seems to be
about optimal.
LINEAR BENCHMARKS (Fortran)
Single Precision Double Precision
Sun-3 Sun-4 Sun-3 Sun-4
Linpack benchmarks: KFLOPS
100x100 rolled BLAs 860 1600 480 1080
100x100 unrolled 4x BLAs 770 1250 440 860
1000x1000 any method 900 1650 600 1100
NONLINEAR BENCHMARKS (Fortran)
Benchmark of Nhuan Doduc,
real elapsed execution time in seconds 890 540
Spice 2G6, real elapsed execution time in seconds
mosamp2 input deck 31 17
NONLINEAR BENCHMARK (C)
Spice 3A7, real elapsed execution time in seconds
mosamp2 input deck 42 23
David Hough
ARPA: dhough@sun.com
UUCP: {ucbvax,decvax,allegra,decwrl,cbosgd,ihnp4,seismo}!sun!dhough