Turning on the PhysX Particals in the graphics settings does not utilize the PhysX GPU. I think it may need there to be a switch to use PhysX or not. Not just the particals for it to tell the Nvidia driver to split up the work. Most games that have PhysX features use all of it so they can just ask the players do you want it on or off. Anyone else notice it not using their PhysX GPU_
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PhysX Particals not using PhysX GPU
Started by
Cpt_Kill_Jack
, Dec 05 2012 09:22 AM
7 replies to this topic
#1
Cpt_Kill_Jack
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#2
Dread_Lord_Pitr
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Posted December 05 2012 - 11:13 AM
Did you properly assign the Physx GPU through the Nvidia control panel _
All animals are equal, but some animals are more equal than others. -George Orwell's Animal Farm
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#3
Cpt_Kill_Jack
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Posted December 05 2012 - 01:26 PM
Dread_Lord_Pitr, on December 05 2012 - 11:13 AM, said:
Did you properly assign the Physx GPU through the Nvidia control panel _
Its it is manually assigned to my GTX470 while my GTX580 runs the main game. This works in UT3.
#4
DarkPulse
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Posted December 06 2012 - 12:48 AM
If that's the case, it could be why it slows my system down so much. PhysX being on doesn't drop my Borderlands 2 framerates to nearly the same unplayable levels Hawken does at the moment.
Reason as my minor ego, and opposite my desire to be a murderer.
A coagulated, gloomy thinking in the intelligence, as my major ego.
An antinomian theorem of behaviorism, in all of my thinkings.
It's what we call "The Inversion Impulse."
A coagulated, gloomy thinking in the intelligence, as my major ego.
An antinomian theorem of behaviorism, in all of my thinkings.
It's what we call "The Inversion Impulse."
#5
Dread_Lord_Pitr
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Posted December 06 2012 - 01:08 AM
Cpt_Kill_Jack, on December 05 2012 - 01:26 PM, said:
Its it is manually assigned to my GTX470 while my GTX580 runs the main game. This works in UT3.
Well then i don't see why it's not working...
Optimization issues maybe _
And yeah, you have assigned it correctly if it works in UT3, or one of the recent Batman games from Rocksteady.
All animals are equal, but some animals are more equal than others. -George Orwell's Animal Farm
BEGIN Pitr's GEEK CODE BLOCK
GCS d_ s: a- C++++ UL++++ P+++ L++++ E--- W+(++) N++ o+++ K+++ w--- !O M-- V-- PS+++ PE+++ Y(++) PGP+++ t* 5(-) X R- tv- b- DI-- D- G++ e++ h* r% y_
END Pitr's GEEK CODE BLOCK
BEGIN Pitr's GEEK CODE BLOCK
GCS d_ s: a- C++++ UL++++ P+++ L++++ E--- W+(++) N++ o+++ K+++ w--- !O M-- V-- PS+++ PE+++ Y(++) PGP+++ t* 5(-) X R- tv- b- DI-- D- G++ e++ h* r% y_
END Pitr's GEEK CODE BLOCK
#6
DarkPulse
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Posted December 06 2012 - 06:19 AM
Well, even the PhysX particle effects can be CPU-driven or GPU-driven. If it's CPU-driven, it'd definitely explain the slowdown.
Basically, PhysX is the physics engine no matter what. Normally it runs a small amount of physics simulations on the CPU. When you enable hardware PhysX, what it's supposed to do is enable extra PhysX effects that run not on the CPU, but the GPU. The CPU can technically run these too, but it would slow it down considerably - which would make framerates suffer.
It's certainly the best explanation we've had yet.
Basically, PhysX is the physics engine no matter what. Normally it runs a small amount of physics simulations on the CPU. When you enable hardware PhysX, what it's supposed to do is enable extra PhysX effects that run not on the CPU, but the GPU. The CPU can technically run these too, but it would slow it down considerably - which would make framerates suffer.
It's certainly the best explanation we've had yet.
Reason as my minor ego, and opposite my desire to be a murderer.
A coagulated, gloomy thinking in the intelligence, as my major ego.
An antinomian theorem of behaviorism, in all of my thinkings.
It's what we call "The Inversion Impulse."
A coagulated, gloomy thinking in the intelligence, as my major ego.
An antinomian theorem of behaviorism, in all of my thinkings.
It's what we call "The Inversion Impulse."
#7
Cpt_Kill_Jack
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Posted December 06 2012 - 07:04 AM
The game is correctly multi threaded to use all 6 of my CPU core so if its putting more work on the CPU then yea its going to slow down because they have to work on something else as well. So something needs to be dont so it runs PhysX stuff on the GPU instead of the CPU. Its meant to take workload off of the CPU and not put more on it.
#8
Aelieth
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Posted December 06 2012 - 08:46 AM
Yeah, I tried it using hybrid AMD + Nvidia Physx drivers and it about made my system have total fits. Knowing that it isn't properly running on multiple Nvidia cards makes me happy, maybe if they fix that then I can offload the Physx to the Nvidia card in my system then.
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