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FS9 and Dual/Quad Core Processors

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Firstly, my apologies if this has been discussed in the past, I was not able to turn up any results doing a forum search.I built my first PC last year and chose an Intel Core 2 Quad Q6700 2.66 ghz as my processor. Now I understand FS9 does not utilize more than a single core and there is no viable way to make it run on several cores at once. However, I do run a multitude of other programs in the background including but not limited to Active Sky, Smooth AI, and other flight-sim related software. When I check the processor core usage, Core 1 runs at 100% while the three remaining cores are not loaded past 2%. Would it be possible for me to assign FS9 to run on one of these "empty" cores (2,3, and 4) and let the other software run on another core? Would doing such improve overall performance at all? Do I have any idea what I'm talking about?I would appreciate any input anyone can offer and thank you in advance,-Sean

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Firstly, my apologies if this has been discussed in the past, I was not able to turn up any results doing a forum search.I built my first PC last year and chose an Intel Core 2 Quad Q6700 2.66 ghz as my processor. Now I understand FS9 does not utilize more than a single core and there is no viable way to make it run on several cores at once. However, I do run a multitude of other programs in the background including but not limited to Active Sky, Smooth AI, and other flight-sim related software. When I check the processor core usage, Core 1 runs at 100% while the three remaining cores are not loaded past 2%. Would it be possible for me to assign FS9 to run on one of these "empty" cores (2,3, and 4) and let the other software run on another core? Would doing such improve overall performance at all? Do I have any idea what I'm talking about?I would appreciate any input anyone can offer and thank you in advance,-Sean
You can try to offload FS-9 on another core and see the results. In Vista 64 you go to task mgr, right click fs9.exe, and choose "Set Affinity". Select the core you want it on. I know this works in the sense that if I scan the core temps, the core I select with warm by a few degrees C. while the first core cools off. I haven't noticed any performance difference, mostly because FS-9 is running so well on my new rig that I haven't seen a need to change things. It can't get any better :)Hope this helps, Regards,John

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You can try to offload FS-9 on another core and see the results. In Vista 64 you go to task mgr, right click fs9.exe, and choose "Set Affinity". Select the core you want it on. I know this works in the sense that if I scan the core temps, the core I select with warm by a few degrees C. while the first core cools off. I haven't noticed any performance difference, mostly because FS-9 is running so well on my new rig that I haven't seen a need to change things. It can't get any better :)Hope this helps, Regards,John
Thanks for that information, I'll be sure and try that out next flight.-Sean

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There was a program that did the one core FS9 the other the rest of the programs. Maybe someone here knows where it is.RH

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There was a program that did the one core FS9 the other the rest of the programs. Maybe someone here knows where it is.RH
Ken Salter's Alacrity allows you to assign programs to specific cores. It replaced FSAutoStart. I'd recommend Alacrity to anyone, a fine piece of donation-ware software.http://alacritypc.kensalter.com/

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Ken Salter's Alacrity allows you to assign programs to specific cores. It replaced FSAutoStart. I'd recommend Alacrity to anyone, a fine piece of donation-ware software.http://alacritypc.kensalter.com/
RayHow do you do that with Alacrity? I've looked all over it and on the website 'How to use' section, but can find nothing about that. I agree that I've probably just been a bit stupid and missed something totally obvious, but if you'd be so good as to point me in the right direction, I'd be grateful.

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RayHow do you do that with Alacrity? I've looked all over it and on the website 'How to use' section, but can find nothing about that. I agree that I've probably just been a bit stupid and missed something totally obvious, but if you'd be so good as to point me in the right direction, I'd be grateful.
Gavin,Double-click your selected profile and click on the AutoStart tab. Double-click a program entry to bring up the options. You'll see two (or more on quad-core) icons for selecting the Affinity. Click the one you want to assign to the program (e.g. CPU0) and then click the other (CPU1) to disable it. When you close that window you should see the Affinity (CPU0) displayed against the selected program.

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RayHow do you do that with Alacrity? I've looked all over it and on the website 'How to use' section, but can find nothing about that. I agree that I've probably just been a bit stupid and missed something totally obvious, but if you'd be so good as to point me in the right direction, I'd be grateful.
Ray go here to get the manualhttp://kensalter.com/download/alacritypc/usermanual.pdfHope this helpregards

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Gavin, how has Alacrity worked out for you? I am thinking about using it. I have a dual core Intel. When you load FS9 on one core and all of the rest on another, does it smooth things up a lot? I am running my CPU and FS9 under whatever default conditions there is. I get pauses at times when my weather clicks in (Active Sky) and would like to get rid of that pause. I suppose my question is if Alacrity will get rid of such pauses. Anyone else can answer as well.Thanks in advance!RH

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Gavin, how has Alacrity worked out for you? I am thinking about using it. I have a dual core Intel. When you load FS9 on one core and all of the rest on another, does it smooth things up a lot? I am running my CPU and FS9 under whatever default conditions there is. I get pauses at times when my weather clicks in (Active Sky) and would like to get rid of that pause. I suppose my question is if Alacrity will get rid of such pauses. Anyone else can answer as well.Thanks in advance!RH
To be perfectly honest, I can't see any difference. But to be fair, things run pretty smoothly for me without using it.

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I know what I about to write is totally against the advice given here, but when I assign FS9 to either one of the cores on my X2 4800+, I get major stutters every couple of seconds. When I change FS9's affinity to both cores, I get nice smooth frame rates.

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I see better Frames with dual core, then single core. As for Quad, I can't comment. For me, FS2004 runs on one core, and all the other crap (XP services, addons etc) run on the other core. With one core dedicated to fs9, and the other to deal with all the other junk, I have to say, I'm now living in heaven, flying FS2004 on a dual core system.I'm locked at 40 FPS, and it stays there. PPL say their is no difference between 30 FPS and above, well hogwash. I see a difference. I use to fly locked at 25 FPS, and now locked at 40 FPS, it

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I see better Frames with dual core, then single core. As for Quad, I can't comment. For me, FS2004 runs on one core, and all the other crap (XP services, addons etc) run on the other core. With one core dedicated to fs9, and the other to deal with all the other junk, I have to say, I'm now living in heaven, flying FS2004 on a dual core system.I'm locked at 40 FPS, and it stays there. PPL say their is no difference between 30 FPS and above, well hogwash. I see a difference. I use to fly locked at 25 FPS, and now locked at 40 FPS, it

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I second that answer! Do you or anyone you know use this program with FS9 with a dual core processor. And, if so, does it show improvements in smoothness (no jecky movments when AV6 updates weather, for example)?

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And another one that I personally use, easy to set-up, have FS9 as sole program on CPU 0 is Prifinitty (http://www.geocities.com/edgemeal_software/SetAffinity/index.htm). I also use SmartClose and through it's menus I leave running what needs to be running, 18 processes when done. In PriFinitty you create a favourites list and assign the cores in this list. What I do is run SmartClose, 18 processes left, run PriFinitty (its actually in the notification tray...bottom right where the clock is...you know), see the 18 processes and select them all, move them to the favourites list and change to CORE 1. Run Weather-ASA, find it in the Prifinitty list, change it to CORE 1, run FS9, find it in the list, change it to CORE 0. When you look at the list in Prifinitty, you graphically see whats on what core and can change it on the fly, FS9 or FSX all by themselves on the core of your choice. I don't have the program automatically change the cores, there's a button top right for Auto Set, I use that when its time to fly. When your done flying, the cores will still be as you assigned them, so go in the list on the left and change them back, you can multiple select. I've only been using it for 2 days but both FS9 and FSX seem to be much smoother?? Mileage will vary. Any questions...ask. By the way I'am just an end user.FS9, ASA Weather, Radar Contact, Ultimate Terrain Can/Alask, FSGenesis Mesh Canada 76m, Ultimate Traffic minus Woai entries, Woai for CYYZ, all sliders right (no shadows, sun flare, lens flare or water effects) add on scenery for CYYZ, 155 aircraft listed when at CYYZ (traffic toolbox), locked at 24 fps, runs fine. ASA clouds set to 4 layers.PMDG MD-11 16-18 fps on takeoff, then settles down. Could move a few sliders to the left to compensate.....nah, not looking outside then anyways. Toshiba laptop, Core Duo 2 ghz, 2 gig ram, Nvidia GO 7600 256meg 180.70 drivers (modified inf), 19" seperate monitor 1280 x 1024 32bit, tweaked FS9 cfg.WinXP Home 32bit SP3FS9 - FSXGlen

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Do you use this? What's it like?
I do use it and appreciate its simplicity. It presents a dialog listing running processes. Click on fs9.exe, selct "isolate on CPU1" and bam FS moves to the CPU1 box, everything else moves to CPU0 (except certain Windows processes that will always run on both). With Task Manager open you can see the results.I like it's small resource footprint and ease of operation. It's author is known for simple apps that do the job. I should have stated in my first reply I use SMP Seesaw which is for machines with 2 cores only. I have a P4 HT.If you run a quad he has a similar utility on the same page.It does seem to make FS run a little smoother, although my FS experience is never great based on the fact my video card is PCI (not PCIe).

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I do use it and appreciate its simplicity. It presents a dialog listing running processes. Click on fs9.exe, selct "isolate on CPU1" and bam FS moves to the CPU1 box, everything else moves to CPU0 (except certain Windows processes that will always run on both). With Task Manager open you can see the results.I like it's small resource footprint and ease of operation. It's author is known for simple apps that do the job. I should have stated in my first reply I use SMP Seesaw which is for machines with 2 cores only. I have a P4 HT.If you run a quad he has a similar utility on the same page.It does seem to make FS run a little smoother, although my FS experience is never great based on the fact my video card is PCI (not PCIe).
Thanks!

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In all my trial and tribulations with FS9 over the years (well, ever since it came out), I have never experienced a significant increase in performance by changing FS9's affinity between various cores (I've got four of them to play around with on my current setup). If there is an improvement, it's not of a noticeable magnitude. As always though, YMMV.

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Soory to drag this dead horse up, but it the closest thread to my question.Is there any way to get FS9 to use multiple cores? I am just getting around to reinstalling FS9 on my new Phenom II x4 based system, and I have been using FSX SP2. The wind issue has become too distracting to me as a real world pilot. It makes me wanna punch the screen every time it starts pulsing. I never had that issue with FS9, although a similar problem with the winds existed, but only while flying at high altitudes and speeds. Never had teh issue in a prop at 5000 feet. So I have to reinstall FS9 (not a overly fun proposition...), but I want it to use more than one core. Surely someone has an idea here... Current SystemAMD Phenom II 3.0GHz8GB OCZ Platinum PC8500MSI 9800GT-OC 512MBXP Pro 64bit

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