FW: [Alibre Design] Optimum System for Alibre?
----------
From: Dave[SMTP:FLYWITHME6@COMCAST.NET]
Sent: Friday, March 26, 2004 5:08:53 PM
To:
alibre@yahoogroups.com
Subject: RE: [Alibre Design] Optimum System for Alibre?
Auto forwarded by a Rule
This is long, so feel free to skip all the explanation crap and look at the summary at the bottom.
Too little ram will show up with things like, for example, patterning. Open your task manager, look at the processes page, go to View>Add Columns and add the Virtual Memory Size column, and then sort the image name column so Alibre.exe is at the top. Also, look down near the bottom of the task manager window at your commit charge. The big number is the amount of system ram + swap space (virtual ram), and not coincidently is twice the size of your physical ram at the default settings. The smaller number is how much you’re currently using. You can also see the same figures on the Performance tab in the “Commit Charge (k)” box. Also of note on the Performance page is the Physical Memory box. See how much is available? If you have only 256mb ram and have much running, you’ll probably not have much available to use. Ok, now to start breaking stuff…
Go back to the Processes tab and look at Alibre.exe. Start a sketch in an Alibre part. Sketch a few small hex figures. Now start to create a pattern of those sketches, say 10x10. You’ll see a preview quickly, but now hit ‘ok’ in the patterning or step and repeat box, whatever it’s called. That will really jam you up. Go back to the task manager window and look at Alibre.exe. The CPU cycles will be maybe 100%, and the Mem Usage and VMSize columns will be climbing. If you look on the Applications tab, Alibre Design may say “not responding”, but it’s just actually churning away. Eventually, your used commit charge will exceed the peak, and windows will tell you something about automatically increasing your virtual memory or something to that effect. Do yourself a favor, and before this happens, end the Alibre.exe process or application. Once the resizing operation begins, you’re nearly locked up until you get the process ended, reboot the machine, or wait however long it takes, and it could be hours and hours.
So…what are the recommendations?
On Processor speed: the faster the processor is (and front-side bus - The fastest motherboards now have 800Mhz FSBs), the faster everything - features, patterns, drawing views, etc. will be created. There are other performance specs besides just the speed of the cpu that make a difference. Also to watch for besides FSB (which is a motherboard function that must be matched to the CPU) is the size of L2 Cache and L3 cache on some Xeon chips. Cache is the highest-speed temporary data storage area on the computer because it’s built right onto the CPU chip, so the more the better. Celeron’s lack much of this, and is why they are slower. Also, some of the new chips support “hyper-threading”. Look that up in google.com to read about it. Basically here’s how all this affects you: the faster the processor is, the faster everything happens.
RAM: The reason RAM is so important is this: no matter how fast your processor, frontside bus, etc. is, if you use up all the physical ram and start using lots of virtual memory, you’re reading from the hard drive, which is the absolute slowest data access system on the computer. Sure, your Dual Xeon 3.06Ghz 800Mhz FSB hyper-threading CPU is fast, but if you don’t have enough ram, you’re at the mercy of your hard drive. Basically, get as much as you can stuff into the motherboard. Most of the time you may not use it all, but when you start doing things like patterning, you’ll be glad you have it.
Video Memory: Cards with 128mb and even 256mb are affordable. Don’t waste money on one of the crazy expensive OpenGL 2 cad cards. Alibre uses DirectX, so one of the good video game cards should work well. With fast video cards with lots of memory, you get smooth rotations and zoom levels. I have 128mb card and even the most complex assembly I have rotates very smoothly.
Quick summary:
Get fastest processor you can, preferably one for a 800Mhz FSB motherboard and as much RAM as will fit into the system. (I like Rambus 1066 mhz ram, but the high speed DDR ram is good too. That’s just personal preference.) If it pushes you over the limit, still max the memory, and drop down a few speeds on the processor. There are big price drops when you don’t get the absolute fastest processor out there. Get at least a 128mb video card.
And, here’s the good part – you can easily do it for well under $3000. For example – here’s a website I use from time to time for my networking customers.
http://www.pcusa.com. They’re in Georgia, so you may not even have to pay tax. There are many many websites that sell machines like this, find your favorite.
For $2600 you can get:
Intel 800Mhz FSB Motherboard, built in Video (which you won’t use), audio, LAN
Intel 3.4Ghz hyper-threading CPU
4GB !!!! of PC3200 DDR400 ram (Oh how I wish I had 4GB of ram, the max WinXP can even use)
Floppy drive
120GB 8MB Cache Serial ATA hard drive
8X DVD/CD Burner
128mb Radeon pro video card
I’ve recently purchased a few of these for some networking clients, so I had all the specs already.
_____
From: brian_wheeler88 [mailto:brian@wirefabco.com]
Sent: Friday, March 26, 2004 4:06 PM
To:
alibre@yahoogroups.com
Subject: [Alibre Design] Optimum System for Alibre?
I've got a question for anyone?
I'm running Alibre Pro. on a P4, 1.4 GHz, 256MB RAM w/ a cheap video
card. It works great for simple stuff, but obviously bogs down with
more complex parts, assemblies and especially drawings. I design
retail fixtures, which utilize a wide range of materials, such as
perforated sheet metal, expanded metal and wire grid. I have found
that modeling some of these materials is probhibitive with my current
system. My questions are as follows:
1. Is my system bogging down because of poor modeling techniques on
my behalf? For example, to model a perforated sheet, I start out
with a flat tab (if in sheet metal module), or a thin extrusion (if
in part module) and put 1 hole in it. Then I pattern that hole in
the direction of the width of the sheet, then pattern that pattern in
the direction of the length of the sheet. If I do this with any
significant number of holes, I end up shutting my computer off after
10-15 minutes of processing, without a finished part.
2. If the above modeling method is reasonable, is there a system out
there that will do it quickly. I've heard much conflicting advice
regarding ideal system components for this type of program. Some say
it's all about processor speed, some say it's all about RAM, and
others say it's all about the video card. Does anybody know, from
experience, what really works? My employer has given me a $3000
budget for a new workstation. Is is possible to build a system that
would allow me to model these types of parts efficiently in this
price range. If so, can anybody make specific system recommendations?
Any help would be greatly appreciated.
Thanks,
Brian
_____
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/alibre/
* To unsubscribe from this group, send an email to:
alibre-unsubscribe@yahoogroups.com
* Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.