Member andre3000 Posted May 30, 2017 Member Report Share Posted May 30, 2017 I was curious to see if a Ryzen 7 would be better than a 7700k intel so I opened up the task manager and found out that AO runs on one thread, retopo as well. Is anything in 3dc multi threaded or should I aim for single core speed? Quote Link to comment Share on other sites More sharing options...
Andrew Shpagin Posted May 30, 2017 Report Share Posted May 30, 2017 3DCoat is essentially multithreaded, so cores will speed up. Intel is better because Intel TBB library used for multithreading, so on Intel it works faster anyway. Quote Link to comment Share on other sites More sharing options...
Member andre3000 Posted May 30, 2017 Author Member Report Share Posted May 30, 2017 Ok good to know. Why does retopo and AO use only one thread? That's what I see on the task manager. Quote Link to comment Share on other sites More sharing options...
Reputable Contributor AbnRanger Posted May 30, 2017 Reputable Contributor Report Share Posted May 30, 2017 1 hour ago, Andrew Shpagin said: 3DCoat is essentially multithreaded, so cores will speed up. Intel is better because Intel TBB library used for multithreading, so on Intel it works faster anyway. Andrew, we need some option for AMD CPU's because they finally caught up to Intel in a big way. Their Ryzen 7 1700X/1800X chips beat Intel's $1000 CPU, 6900k, in many benchmarks....and costs 1/3 that price. So, for the average user, AMD makes a ton of sense. I've been waiting on this chip for over a year now, and it's highly disappointing to know it is going to be hamstrung in 3D Coat because Intel is favored over AMD. I have been using an i7 970 for the past 4yrs waiting to upgrade when Intel decided to offer something worth upgrading to, that was reasonably priced. They haven't. AMD stepped up this time. Maybe parallelized code can be recompiled to OpenCL so it not only is GPU accelerated, but is brand agnostic? https://developer.amd.com/wordpress/media/2012/10/OpenCL_Parallel_Computing_for_CPUs_and_GPUs_201003.pdf 2 Quote Link to comment Share on other sites More sharing options...
Reputable Contributor AbnRanger Posted May 30, 2017 Reputable Contributor Report Share Posted May 30, 2017 1 Quote Link to comment Share on other sites More sharing options...
Member andre3000 Posted May 30, 2017 Author Member Report Share Posted May 30, 2017 31 minutes ago, AbnRanger said: I have been using an i7 970 Same generation as my 920, What do you see in the task manager when retopo or computing AO? Quote Link to comment Share on other sites More sharing options...
Reputable Contributor AbnRanger Posted May 30, 2017 Reputable Contributor Report Share Posted May 30, 2017 Just now, andre3000 said: Same generation as my 920, What do you see in the task manager when retopo or computing AO? AO uses the GPU for computation. And some tasks, such as Retopo work, is single-threaded, because not everything can be executed in parallel (multi-threaded). Quote Link to comment Share on other sites More sharing options...
Member andre3000 Posted May 30, 2017 Author Member Report Share Posted May 30, 2017 Just now, AbnRanger said: AO uses the GPU for computation. And some tasks, such as Retopo work, is single-threaded, because not everything can be executed in parallel (multi-threaded). So having more core would not benefit these two very intensive tasks. I see that voxel sculpting lights up half my cores only. I read in another thread that 3DC only uses 50% of the cpu. Quote Link to comment Share on other sites More sharing options...
Reputable Contributor AbnRanger Posted May 30, 2017 Reputable Contributor Report Share Posted May 30, 2017 29 minutes ago, andre3000 said: So having more core would not benefit these two very intensive tasks. I see that voxel sculpting lights up half my cores only. I read in another thread that 3DC only uses 50% of the cpu. Retopo work isn't all that calculation intensive. Pushing or painting thousands of polygons at the same time...that is, and it's why it's multi-threaded. Some users think something is wrong with 3D Coat when their cores are maxed out and others assume something is wrong when they aren't. If you are using the CUDA version and have an NVidia card, using the Voxel Brushes invokes CUDA, so why would the CPU cores be maxed out if your graphics card is doing the heavy lifting? Most of the app is multi-threaded, but not every task can benefit from Multi-threading. It's that way in every 3D app. Quote Link to comment Share on other sites More sharing options...
Member Thomas Cheng Posted June 8, 2017 Member Report Share Posted June 8, 2017 Threadripper is coming out. I think AMD is making a very strong comeback and my next few machines I use in my mini office will be AMD chips. Please support. Just recently some games got a 30% boost in performance after optimizing the games for AMD chips. I like to see that with 3DCoat. Quote Link to comment Share on other sites More sharing options...
Advanced Member kenmo Posted June 9, 2017 Advanced Member Report Share Posted June 9, 2017 Not wanting or wishing to hijack this thread...If one does go the AMD Ryzen route what video card Nvidia or AMD's own ATI line of graphic cards? Also as far as I know AMD/ATI do not support CUDA. AMD also have a few 6 core Ryzens which maybe more bang for the buck. Of course Intel has the future R9. Kind of reminds me of the old 1960s Muscle car wars Chevy vs Ford vs Dodge. One year it's Chevy, next year Ford or Dodge... Quote Link to comment Share on other sites More sharing options...
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