AI behaviour vs CPU utilization

[Muahaha 10]

I am trying to understand how badly will AI performs under scenarios where there are large numbers of AIs on the scene with CPU being highly utilized.

As many had said before that AIs will be "dumber" when CPU's juice is running low and "smarter" vice versa.

Personally, I did load up a squad of 6 blufor with 6 opfor and the path findings/reactions of the AIs are pretty solid, they go covering each other, seeks covers proactively and has high reaction time comparing to when i load up 30 blufor and 30 opfor under the same scenario which have many of the AIs running to open ground and get shot all the time.

Just how good/bad will the AI behaves vs CPU processing power? Anyone has any idea?

[SPC.Spets 21]

aparently the AI use only 1 core...

more AI, more CPU work, less AI response

I dont know how difficult can it be to implement multiple cores for the AI

[Muahaha 10]

aparently the AI use only 1 core...

more AI, more CPU work, less AI response

I dont know how difficult can it be to implement multiple cores for the AI

Yep, apparently someone else has already suggested on having BIS implementing multi-core for AI. But seems impossible currently with this engine.

[ArmAriffic 10]

Yep, apparently someone else has already suggested on having BIS implementing multi-core for AI. But seems impossible currently with this engine.

Time for ArmA 3, less buggy engine

[pettka 694]

aparently the AI use only 1 core... I

Game uses 1 core, AI uses the rest, as far as I know. That means 1 core on dual-core, but 3 cores on quad-core (=> smarter AI)

[Tonci87 163]

Really?

When looking at my Core Stats after playing Arma I notice that Core3 has the most work to do, after that comes core0, then core2 (core0 and core2 almost have to do the same amount of work) core1 is the one that gets the least usage (almost 25% less than core3)

Is core3 for the standard Game then? And all others are AI?

[eymerich 11]

Game uses 1 core, AI uses the rest, as far as I know. That means 1 core on dual-core, but 3 cores on quad-core (=> smarter AI)

Nice to know.

I suppose that the reason i die too often...

maybe it's time to remove some cores from my esa...

:)

joking of course but thanks for this information :)

[froggyluv 2136]

Really?!?

So is it time to get rid of my e8500 duo core and upgrade to quad? Can anyone confirm that more cores equals improved AI?

[Muahaha 10]

Thanks for enlightening us on this Pettka. Seems like quad cores players does benefits a lot more than dual cores players.

[andersson 285]

Thanks for enlightening us on this Pettka. Seems like quad cores players does benefits a lot more than dual cores players.

As long as you play SP or host a local MP session. If you play on a server it shouldn't affect that much.

[SPC.Spets 21]

thats not what I hear

[EDcase 87]

If you play online then the server handles the AI. Your client machine only handles AI subordinates controlled by you.

Of course if there are lots of AI in a MP mission it may still slow down as there is more network data...

Edited March 2, 2011 by EDcase

[froggyluv 2136]

Im just wondering if anyone's noticed in SP, a distinct difference in AI performance between using dual and quad cores and how so?

Sometimes people upgrade and have a placebo effect that everything is better -that is why I ask :)

[stk2008 14]

Im just wondering if anyone's noticed in SP, a distinct difference in AI performance between using dual and quad cores and how so?

Sometimes people upgrade and have a placebo effect that everything is better -that is why I ask :)

Yep its true I have a real crappy dedi server (all I can afford as I am off work due to health issues :( ) any ways yeah the AI can be a little slow some times and thats the servers fault it really is a bad server single core AMD etc etc.

When I play on me quad core I can see the difference :) oh and feel it when there is a 7.62 round in my ass :(

[Tankbuster 1747]

Game uses 1 core, AI uses the rest, as far as I know.

I'm not about to contradict a BI staffer, but are you sure this is right? I was given to believe the opposite is true.

---------- Post added at 19:36 ---------- Previous post was at 19:31 ----------

Maruk alludes to something relevant here, but the link is broken.

[rexehuk 16]

I'm not about to contradict a BI staffer, but are you sure this is right? I was given to believe the opposite is true.

---------- Post added at 19:36 ---------- Previous post was at 19:31 ----------

Maruk alludes to something relevant here, but the link is broken.

This is link:

http://www.bistudio.com/index.php/english/company/developers-blog/91-real-virtuality-going-multicore

[froggyluv 2136]

Thanks for that link :)

So what i gather is that the main area one would see improvement is jumping from single cpu to multi. Seems that the improvement from dual to quad is less and perhaps negligible?

~Ok, safe with me trusty dual for now methinks~

[KillSh0t 10]

Running dual core, cant say I noticed much of an AI dumb down with more units on the field as most of my battles are HUGE....

How many units on the field would this supposedly happen with?

All I have really noticed is my machine getting mad at me cuz I get a bit exagerated with my missions lol.

[Tankbuster 1747]

Thanks Rex. I remember reading that when it first came out. It doesn't seem relevant to this topic after all.

[Baff1 0]

I am trying to understand how badly will AI performs under scenarios where there are large numbers of AIs on the scene with CPU being highly utilized.

As many had said before that AIs will be "dumber" when CPU's juice is running low and "smarter" vice versa.

Personally, I did load up a squad of 6 blufor with 6 opfor and the path findings/reactions of the AIs are pretty solid, they go covering each other, seeks covers proactively and has high reaction time comparing to when i load up 30 blufor and 30 opfor under the same scenario which have many of the AIs running to open ground and get shot all the time.

Just how good/bad will the AI behaves vs CPU processing power? Anyone has any idea?

It's the reaction time I mainly notice.

Also when they start doing complex stuff like fighting while retreating in forests they start taking their sweet time.

Certainly I too have been attributing this to a bottlenecking in CPU.

I couldn't give you any idea of the scale by which AI improves with extra CPU power, I only know that I feel the limitations.

I've been wondering for sometime how much of an improvement I could expect to see if I upgraded. Only one way to find out!

The expensive way.

[Muahaha 10]

Very true, I guess one of the ways to find out the difference might be to benchmark a mission with AIs that will max out the CPU processing power on 2 different CPU systems.

A stats of the mission might show the results we hope.

[.kju 3245]

In the CIT you can find some good analysis missions and some statements from Suma about it.

[Muahaha 10]

In the CIT you can find some good analysis missions and some statements from Suma about it.

You happens to have the link?