RE: [amibroker] Need help with new computer workstation, AmiBroker Email List Archive

May be Thomasz can give us advice.

Clement

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Steve Dugas
Sent: Friday, June 22, 2007 1:04 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Need help with new computer workstation

Hi D - Very timely post! I am in the market to increase RAM, just wondering why Windows doesn't use the full 4G? Seems like a waste to pay for an additional 2G if Windows will only use 1. Thanks!

Steve

----- Original Message -----

From: dingo

To: amibroker@xxxxxxxxxxxxxxx

Sent: Thursday, June 21, 2007 10:50 AM

Subject: RE: [amibroker] Need help with new computer workstation

Actually you can put in 4 gig on a 32 bit machine, BUT windows will only use somewhere between 3 and 4. Still you'll have at least a minimum of 3 available.

The BEST thing you can do to speed things up, as Ara has mentioned, is to streamline your AFL. Unless it is already "sleek and efficient" you'll gain more speed this way than almost any hardware purchase. If you feel like sharing your code then post it here and you'll get lots of good suggestions. If not send it to TJ (who'll be back the the end of the month) and copy your message in with hit and see if he can take a look and make some suggestions.

Also, as Ara mentioned, look at your settings in your preferences and make sure the cache is appropriately sized, etc.

You need to stay away from the 64 bit systems, IMHO.

After all of that and you still feel like you need/want a new machine then get a fast disk (the WD raptors have an excellent bang for the buck). As much memory as can be used and a medium speed dual core Intel machine.

d

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Dan Clark
Sent: Thursday, June 21, 2007 12:27 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Need help with new computer workstation

Hi. I haven’t posted for a while because I’ve been busy with other projects.   Now I’m coming back to the fold, but…

My current workstation doesn’t have enough horsepower for my scans. Currently they are running between three and four hours. Way too long. So I’m going to buy a new ‘puter.

I need some help on this. The last time I looked at this issue, the sense that I got was:

1)       If you could use something like 8Gb of memory, that you probably be big enough to load the AB DB into memory.

2)       But the only way to use 8Gb of memory is to go to a 64Bit OS. With 32Bit OS, you can only used 2Gb of memory.

3)       There is minimal advantage in running AB in a 64 bit OS.

4)       If you did go to a 64 bit OS, many drivers and utilities would not run. This includes data providers like Quotes Plus (my current provider).

From doing a scan of posts in the AB forum, it looks like nothing has changed in the ‘puter/OS realm.    Further, although Vista will run 64bit, reviews indicate that it’s anywhere from 5% to 25% slower than XP.   So that leaves me with a quandary, what do I do?

To maximize the speed of AB scans, what is the best current strategy for buying a computer? Stick with 32Bit OS? Any way to use more than 2Gb of memory?   Is Intel Core Duo the fastest box currently?   10K rpm SATA drives the best alternative now?   SCSI drives still faster?   Any other suggestions?

Thanks in advance for any feedback.

Regards,

Dan.

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