>Delivered-To: [EMAIL PROTECTED] >User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.6) Gecko/20011120 >X-Accept-Language: en-us >MIME-Version: 1.0 >Content-Transfer-Encoding: 7bit >Date: Mon, 14 Jan 2002 10:31:08 -0800 >From: Giles <[EMAIL PROTECTED]> >Subject: Re: [JAVA3D] Hardware configuration >To: [EMAIL PROTECTED] > >stuart wrote: > >>Thanks for the prompt reply Justin. >> >>Information regarding the use of dual processor systems was based on my own >>knowledge and reviews of AMDs MP chips including that at >>http://www.tech-report.com/reviews/2001q4/athlonmp-1900/index.x?pg=1. It >>was after reading the recent posts regarding hardware issues that I >>investigated the dual-processor/SCSI issue. Although I am not disagreeing >>with your view about dual-processor systems taking advantage of >>multi-threading, my point was that for most of the time there will not be >>optimised compatible threads multitasking simultaneously - lessening the >>benefits of the dual-processor mainboard. >> >My experience with Java3D and multiprocessors has been good. Even >running NT I was seeing a good improvement from a single processor to a >multiple processor machine running the same clock speeds... wish I >still had my performance numbers handy but I think it was 40-50% >improvement. > >Alot will depend on what else you are doing in the Java3D system. In >the archives are details about the multi-threaded nature of Java3D. > Depending on your use of sound, behaviors, collision detection you will >see different responses to multiprocessor use. I think two processors >will always be helpful, I think it maxed out at about 4... which is the >most you could really use with most X86 architectures any way. >
No, it will not max out at 4. There are many threads in Java3D, the number depends on View (x2), VirtualUniverse (x6), Screen (x1), PhysicalEnvironment (x1), InputDeviceScheduler (x1) plus 3 others. Most of them are running in parallel if enough CPUs. - Kelvin ---------------- Java 3D Team Sun Microsystems Inc. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
