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For some reason this message from last week never made it to
distribution on the mail list...trying again. Sid
*****
Hi George, been a long time.... I'll check with my friend to see if
he has such a list.
My opinion follows. If I had the luxury of more than one new
machine I would build an Athlon screamer for back testing and
gaming. However, much of my daily usage is multitasking in nature,
mail, quotetracker, IB, net surfing, some light AB work during the day
and so on. This is handled much better by the hyperthreaded P4 or,
if you have the big bucks, by the new dual core Athlon. With
hyperthreading turned off a CPU intensive program running in the
background can cause the forground application to be very slow or even
nearly grind to a stop. With hyperthreading on I am almost
completely unaware of the presence of the background task.
The bottom line here is to go with a computing solution that supports the
way you work.
BTW, on those optimization runs I mentioned below; it takes 300 to 400 of
those 10 minute runs for the actual finished test....several days of
number crunching.
Sid
George Loyd <grloyd@xxxxxxxxxxx> wrote:
- Hi Sid,
- I am building an Athlon machine - Athlon 3500+ Could you give give a
more detailed list of components your friend used or could you put me in
contact with him? I am looking for specific brands, etc.
- Regards,
- George Loyd
- Sidney Kaiser wrote:
- Dean, to give you some idea of the differences between computers I
have recorded the following data. I run huge optimizations using AB
with Fred's excellent IO optimizer. 2500 stocks, 10 variables, 2
years of EOD data. All systems have 1 Gb of RAM. Times are
for 1 full, 36 steps, run thru the optimizer.
-
- Old Dell 2.5 GHz P4, 14 minutes
-
- Dell 3.2 GHz P4 ht, 11 mimutes, ~ equal to processor speed
difference
-
- Dell 3.6 GHz P4 ht, 7m 15 sec, noticably quicker than the 3.2 GHz
machine.
-
- and last weekend on a friends new Athlon machine
- Athlon 3500+, 4m 25 sec, Quick, but expensive to buy in
assembled form.
-
- Cheers
- Sid
- Dean Hodgins
<deanhodgins@xxxxxxxxx>
wrote:
- My current system (a 1.8 ghz intel) based PC bogs down and
freezes
- when I run multi variable optimizations while computer at work is
fine.
- (It's a 2.2 ghz)
- Good excuse to put together a new system. I was thinking of the newer
- AMD / Athlon 64 bit systems and was curious whether anyone has had
any
- positive or negative experiences with newer 64 bit m/boards or chips
or
- any other thoughts recomendations.
- Regards to all..
- Dean Hodgins
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