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Subject: Re: Here is your SMP data results...

Author: Robert Hyatt

Date: 13:45:53 04/01/03

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Three runs.  First with one cpu, second with two threads, hyper-threading turned
off.  Final
with hyperthreading on and using four threads:

log.001:              time=1:25  cpu=100%  mat=0  n=85541803  fh=91%  nps=1002k
log.001:              time=55.76  cpu=100%  mat=0  n=62194368  fh=95%  nps=1115k
log.001:              time=1:40  cpu=100%  mat=-1  n=89351765  fh=94%  nps=892k
log.001:              time=1:17  cpu=100%  mat=0  n=82359320  fh=92%  nps=1056k
total time used = 317.76s


log.002:              time=58.39  cpu=198%  mat=0  n=93417000  fh=91%  nps=1599k
log.002:              time=32.12  cpu=199%  mat=0  n=57789717  fh=95%  nps=1799k
log.002:              time=1:01  cpu=195%  mat=-1  n=88101174  fh=94%  nps=1431k
log.002:              time=55.31  cpu=197%  mat=0  n=92187038  fh=92%  nps=1666k
total time used = 206.82  1.54X SMP speedup (two threads/processors)


log.003:              time=53.90  cpu=397%  mat=0  n=107889313  fh=91%
nps=2001k
log.003:              time=25.70  cpu=395%  mat=0  n=57514689  fh=95%  nps=2237k
log.003:              time=1:03  cpu=396%  mat=-1  n=113942925  fh=93%
nps=1800k
log.003:              time=41.66  cpu=396%  mat=0  n=86861862  fh=92%  nps=2085k
total time used = 184.26   1.73X SMP speedup (four threads, SMP on, two
processors)

I'm sure that if I run them multiple times, there will be some variability of
sorts.  However,
none seem to be "badly behaved" positions so I don't think the variability will
be wild.

any more tests I should run???  Not that four positions is particularly
interesting in
terms of a test of anything.  Or, as I expect, I'm sure something is wrong with
these
results too...

Not particularly bad or good performance in my opinion, but that is just one
small test
set that is as meaningless as any other small test set...





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