I have one more comment to make on the speed of a 32-bit version of
Stata running on a 64-bit box vs. a 64-bit version of Stata running
on that same box.
I just did a quick 'silly' speed comparison. I generated two
variables containing 500,000 uniformly-distributed random numbers
each. I then sorted each variable. Finally I performed a linear
regression of one variable against the other. I ran each
commands multiple times and took an average timing.
This was done on a box running 64-bit Windows with a 1.4 GHz
AMD Opteron 240 processor and 1 GB of RAM.
The timings for 32-bit Stata on this box were
sort: 2.00 seconds
regress: .88 seconds
The timings for 64-bit Stata were
sort: 1.65 seconds
regress: .80 seconds
These timings are just a quick example which backs up what we have
already observed in our testing of Stata on various platforms. The
64-bit version of Stata outperforms the 32-bit version of Stata on a
64-bit box. Users wishing to push the edge of both speed and memory
are served very well with the current crop of 64-bit machines
available to them running a 64-bit version of Stata.
--Alan
([email protected])
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