As far as I know, PMDG is working on to release some aircrafts for P3Dv2 in Q1 2014. Now two weeks left but I have not seen any news. I am very longing for flying NGX in this sim!!  Have anyone heared of any news?

 

At the same time I am a bit feared what is going to happen on the VAS. Maybe I need to fly it with all vegitation off  :ph34r:.  I do not have any addon airports. it may be even tougher for those who have many addon airports installed.  

 

PMDG is working on to release some aircrafts for P3Dv2 in Q1 2014

 PMDG generally doesn't announce release dates, for many good reasons. Thus being one. thsi may be what you are referring to. Read VERY carefully. Anticipate, contractual issue etc. personally, i would hold out on any releases until a stable close to final P3D release is issued.

 

"We do not have a firm ETA for release of PMDG's pending line of P3D products, but we anticipate having the contractual issues resolved in time for a 1Q14 initial release. "

Ah! Then obviously that was my misunderstanding  . Thanks for the correction!  

I think it will be a while down the road, because LM need to get on top of the memory leaks and high VAS usage. 

 

Without improvements in those departments, it will be hard for PMDG to deliver a stable product for the platform. 

You could always try asking on the PMDG forums ..............

Don't know how enthusiastic PMDG would be knowing every time P3D does an "Upgrade/Bug Fix" it could and probably would break their AC resulting in them addressing the new set of issues that are bound to crop up...

Don't know how enthusiastic PMDG would be knowing every time P3D does an "Upgrade/Bug Fix" it could and probably would break their AC resulting in them addressing the new set of issues that are bound to crop up...

They could, you know, work together.

It will be intriguing to see how they perform in P3D V2.x.  It's really hard to say.  I'm hoping because there is relatively more CPU available in the V2 environment (this is my assumption since so much work goes to the GPU) and that this might help support the high processing demand these birds require in FSX.

I think you will find that they do not perform better in P3D. 

 

I actually doubt very highly that we will see a PMDG bird anytime soon in P3D because of this very reason. 

 

They sell P3D saying that it uses more of the GPU, but this is not entirely true and P3D is still very much cpu limited.

 

Most of the new stuff, like more autogen and tessellation is indeed done on the GPU, but you will still find that you are limited by the 1st core in use in P3D.

 

This has nothing to do however with my personal believe that a PMDG release won't be coming anytime soon, because I think that the reason for this is the VAS problems present in P3D. 

 

PMDG birds are very heavy on VAS usage and there is not much VAS left in a standard P3D installation and even less when people have other add ons installed. 

 

If I were PMDG I would wait for the 64 bit version of P3D before putting any money into it. 

 

nevertheless, I am very curious as to how this all is going to develop, I am just not expecting any exciting stuff any time soon. 

Don't know how enthusiastic PMDG would be knowing every time P3D does an "Upgrade/Bug Fix" it could and probably would break their AC resulting in them addressing the new set of issues that are bound to crop up...

 

Exactly! P3D is a moving target and it's going to be for a while. Yes, that's probably normal for any active software, but at this point, it's going to change a lot; they have a lot of catching up to do.  I don't think it's ready for developers or users.

 

Also consider that PMDG always has their plate full. I would think this isn't on the priority list.

They sell P3D saying that it uses more of the GPU, but this is not entirely true and P3D is still very much cpu limited.

 

It's no doubt true the GPU does so much more in P3D V2, but that doesn't necessarily mean the CPU is spared any work.  Though I've read comments from the dev that indeed the autogen engine somehow uses the GPU in a way that might be considered an offload.  However, here's what I see happening w/ frame rate and GPU use in P3D:  one can have relatively lower frame rate in autogen/complex sceneryand yet have lower (50-70%) GPU utilization in the same area.  I saw this right away in using P3D V2.0 and made comment then that it didn't bode well for SLI adding a whole lot, and as you mention it, perhaps little help for complex aircraft.

 

I think beyond 64 bit would be somehow to be able to revise the P3D engine at the same time they go to 64 bit to be able to get to more CPU cores.  That is the glaring elephant in the box, but my understanding is that developing true multi-core use for the main thread would be very difficult technically due to timing issues.

 

I know some have tried PMDG birds in P3SD V2 and the sense I had was that they do 'ok', which I take to mean, about the same as in FSX. 

 

 

I think you will find that they do not perform better in P3D. 

 

I can say this with 100% certainty, you are wrong!!!!!  I will not comment any further on it as per eula.

I can say this with 100% certainty, you are wrong!!!!!  I will not comment any further on it as per eula.

 

No, you are wrong. In cases where Prepar3D 2.0 is CPU-limited (like when using complex aircraft, PMDG for example), it performs the same as FSX. Until they thread out the AI, the physics and the aircraft systems, there will still be a heavy reliance on single-threading performance.

No, you are wrong. In cases where Prepar3D 2.0 is CPU-limited (like when using complex aircraft, PMDG for example), it performs the same as FSX. Until they thread out the AI, the physics and the aircraft systems, there will still be a heavy reliance on single-threading performance.

Interesting.  Do we have any sense of what portion of CPU demand might go towards each of AI/physics/aircraft systems?   I think I read XPlane 64 dedicates each AI to a separate core or virtual core maybe.  But how much does that really impact total demand on the CPU?  From my experience, not a whole lot as evidenced by changes in the AI density slider.   It seems intuitively the low hanging fruit for better multicore use is those tasks that are less critically timing/synchronization dependent, like perhaps AI.  How does GSX utilize the CPU?  That is a feature that seems really should go to a non-main core, but I've never looked at that.

 

I can also see how both of you would have different impressions, one saying PMDG will perform better, the other the same as w/ FSX.  I think that is coming from how P3D V2 is setup on each user's machine.  The simulation environment is very different in FSX versus P3D V2, so unless you've both set your systems up identically and on identical hardware it would be easy to see how you would come away w/ different impressions.

The cpu will be always a limitation at some point but that's not my experience with Prepar3d. With several scenarios in FSX, my CPU was maxed indeed. Now i fly similars scenarios in Prepar3d where my 2 GPU run at 100% while my CPU 4 cores are on average at 25%. The core zero is certainly not maxed as it run at 15% now for window OS. Overal performance is already better than FSX and changing GPU card will allow me to use my CPU even more. So my overal observation while doing performance test was that my CPU has considerable headroom now.