CPU for DAZ3D...

Illidanstorm

I need to buy a new CPU and I've read that DAZ3D only supports one core.

So if I'm understanding that corrcetly the Intel Core i7 8700K 6x 3.70GHz will be slower than the Intel Core i3 7300 2x 4.00GHz ?
Is it planned that DAZ3D supports more cores in the future?

CGHipster

See this post:

https://www.daz3d.com/forums/discussion/184411/will-new-mega-core-cpus-help-with-daz-studio

(Daz does take advantage of multicore for various tasks)

I am using an 8700K, it is a better choice overall since whether or not Daz is implementing all cores effectively you still have several cores available for running other apps in tandem.  my current clock speed is 4.88 overclocked and I can run multiple instances of applications Daz, Zbrush, Blender, Gimp, Krita, Modo, Hexagon etc. albeit I do not render in tandem with multiple apps for obvious reasons, but I can do all modeling and staging, rigging and painting etc. even while rendering, and without experiencing any lag or jitter while having many multiple applications open.

More cores will translate into smoother multitasking and will allow you a much better workflow, I would recommend the 8700K over the i3, for the multitasking alone.

Victor_B

Illidanstorm said:

DAZ3D only supports one core.

That's not true.

ebergerly

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

Richard Haseltine

DS is multi-threaded for some intensive processes that permit mutti-threading - such as rendering - but single-threaded for most basic operations.

Havos

ebergerly said:

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

If you are using windows, then you can do this using Task Manager. Locate Daz Studio, right click and select "Go To Details"

Here select the DS process, and right click again. Select "Set Affinity"

You will get a list of all your processor cores. Just unselect a few and DS will not use them.

Unfortunately this is not remembered each time DS is run, so you have to set this up each time you run Daz Studio.

ebergerly

Wonderful Havos, thanks. I never really used CPU for Studio so never researched it, but I think your fix is excellent for those who regularly use CPU rendering. At least save one core for OS stuff. 

This should be stickied into an "Important stuff to know about Studio rendering" thread 

 

ebergerly

Hey it works !!! I tried Havos' idea and I can even run the Snipping Tool while rendering on all but one core !

Sweet. Thanks Havos

daveso

Havos said:

ebergerly said:

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

If you are using windows, then you can do this using Task Manager. Locate Daz Studio, right click and select "Go To Details"

Here select the DS process, and right click again. Select "Set Affinity"

You will get a list of all your processor cores. Just unselect a few and DS will not use them.

Unfortunately this is not remembered each time DS is run, so you have to set this up each time you run Daz Studio.

i just checked this and it shows 8 cores/CPUs, although my processor is a quad core. Whats up with that? any idea? ALL 8 are checked. 

RobotHeadArt

You can make a batch file on your desktop and use that to launch DAZ Studio with CPU affinity or CPU priority set.  I describe how to do that in this post https://www.daz3d.com/forums/discussion/comment/3491476/#Comment_3491476

takezo_3001

Havos said:

ebergerly said:

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

If you are using windows, then you can do this using Task Manager. Locate Daz Studio, right click and select "Go To Details"

Here select the DS process, and right click again. Select "Set Affinity"

You will get a list of all your processor cores. Just unselect a few and DS will not use them.

Unfortunately this is not remembered each time DS is run, so you have to set this up each time you run Daz Studio.

You can use plenty of 3rd party programs for affinity management, I use process lasso...

 

 

 

 

Illidanstorm

If you have a Nvidia GPU you should turn off the CPU anyway. It is just a bit slower with only the GPU than with CPU and GPU. See here https://www.daz3d.com/forums/discussion/53771/iray-starter-scene-post-your-benchmarks/p27

FSMCDesigns

Illidanstorm said:

If you have a Nvidia GPU you should turn off the CPU anyway. It is just a bit slower with only the GPU than with CPU and GPU. See here https://www.daz3d.com/forums/discussion/53771/iray-starter-scene-post-your-benchmarks/p27

Not in my experience, so it's staying on

nicstt

Illidanstorm said:

If you have a Nvidia GPU you should turn off the CPU anyway. It is just a bit slower with only the GPU than with CPU and GPU. See here https://www.daz3d.com/forums/discussion/53771/iray-starter-scene-post-your-benchmarks/p27

This depends on your CPU, and how and how good the GPUs are.

Illidanstorm

Hmm, it's true for me at least. With this hardware:

1080 Ti
1800x Ryzen
32GB RAM

Only GPU: 3.29
GPU and CPU: 3.01
GPU Optix: 2.09
GPU and CPU Optix: 1.48

I'm just unhappy with the viewport speed of the Ryzen 1800x even with Display Optimisation set to best. When there are like 5 people in the scene and they all wear clothes posing becomes very slow.

 

Havos

RobotHeadArt said:

You can make a batch file on your desktop and use that to launch DAZ Studio with CPU affinity or CPU priority set.  I describe how to do that in this post https://www.daz3d.com/forums/discussion/comment/3491476/#Comment_3491476

That looks useful. Since I rarely render using 3DL this is less of an issue for me than before, and I render GPU only with Iray.

dragotx

Illidanstorm said:

Hmm, it's true for me at least. With this hardware:

1080 Ti
1800x Ryzen
32GB RAM

Only GPU: 3.29
GPU and CPU: 3.01
GPU Optix: 2.09
GPU and CPU Optix: 1.48

I'm just unhappy with the viewport speed of the Ryzen 1800x even with Display Optimisation set to best. When there are like 5 people in the scene and they all wear clothes posing becomes very slow.

 

A workaround I use for big scenes with lots of figures is to group figures up.  So, for example a scene in a landing bay with mechanics working on a ship and a group of primary actors I'll put the envirnment itself in one group and turn off the mouse selecatability (just to get thigs to stop turning yellow when my mouse moves over it) then put the mechanics in a group, the ship in a group, and the main characters in a group.  That way I can turn off visibility of whichever group I'm not working on with one click, instead of having to do it piece by piece.

Victor_B

daveso said:

i just checked this and it shows 8 cores/CPUs, although my processor is a quad core. Whats up with that? any idea? ALL 8 are checked. 

Windows shows there number of threads or "virtual cores". Your processor has 4 cores with 2 threads for each core (calls Hyper-threading), so Windows shows 8 "virtual cores" (4*2 = 8).

AMD Ryzen™ 7 1700 (that ebergerly attached) has 8 CPU cores and 16 threads.

namffuak

RobotHeadArt said:

You can make a batch file on your desktop and use that to launch DAZ Studio with CPU affinity or CPU priority set.  I describe how to do that in this post https://www.daz3d.com/forums/discussion/comment/3491476/#Comment_3491476

This.

I prefer to launch Studio at belownormal priority. If nothing else is running, Studio gets all 12 threads and up to 100% of the cpu. But I can do pretty much anything I want interactively without suffering lag - and without significantly changing render time.

CGHipster

daveso said:

Havos said:

ebergerly said:

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

If you are using windows, then you can do this using Task Manager. Locate Daz Studio, right click and select "Go To Details"

Here select the DS process, and right click again. Select "Set Affinity"

You will get a list of all your processor cores. Just unselect a few and DS will not use them.

Unfortunately this is not remembered each time DS is run, so you have to set this up each time you run Daz Studio.

i just checked this and it shows 8 cores/CPUs, although my processor is a quad core. Whats up with that? any idea? ALL 8 are checked. 

The easiest way to answer this is to quote something from the net for you that already explains it well.  But not sure I can without being a thief so, just google how cores are counted in windows systems.

 

towdow3

im planing to get a ryzen 1950x for 3delight. Considering it takes an hour for an average render in 3delight with 3 figures....i'll see an improvement. as far as i know when i'm rendering all my cores are being used.

Mescalino

CGHipster said:

daveso said:

Havos said:

ebergerly said:

I have an 8 core, 16 thread Ryzen CPU and Studio/Iray uses too many threads, IMO. It uses all 16 threads and brings my computer to its knees since it can't do anything else while rendering. In fact it would be kinda nice if you could disable some threads manually.

If you're talking about rendering on a CPU using Iray, you might consider buying a GPU and assign it to do the rendering instead of your CPU.  

If you are using windows, then you can do this using Task Manager. Locate Daz Studio, right click and select "Go To Details"

Here select the DS process, and right click again. Select "Set Affinity"

You will get a list of all your processor cores. Just unselect a few and DS will not use them.

Unfortunately this is not remembered each time DS is run, so you have to set this up each time you run Daz Studio.

i just checked this and it shows 8 cores/CPUs, although my processor is a quad core. Whats up with that? any idea? ALL 8 are checked. 

The easiest way to answer this is to quote something from the net for you that already explains it well.  But not sure I can without being a thief so, just google how cores are counted in windows systems.

 

Key words are probably Hyper threading.

https://en.wikipedia.org/wiki/Hyper-threading