Intel i7 930 CPU usage

[Olli96]

I just have a quick question regarding the cpu usage on an intel i7 system. I just bought an i7 930 2.8Ghz and did some test renderings. When i take a look at the cpu usage in the taskmanager then i can see that when calculating the LC the cpu usage is at 25% (LC Passes was set to and when it comes to the irradiance map it is at 50%. So my first guess was that i forgot to enable HT in the bios, but this isnt the case, its activated. Then i searched the internet but couldnt find anything regarding this topic. There was a thread at cgarchitect where someone stated that its all good even if only half of the power is showing up. So what i would like to know now is if it is normal on an HT System that you only see half of the power its supposed to be? I also have only 4 buckets when rendering, i was expecting 8. Should those virtual cores showing up when rendering?

WinXP 64Bit
3dsmax 2009 Design 64Bit
VRay 1.5 SP4a

Thanks in advance
Olli

[kein_plan]

hi olli, i have the i7 920 xp64. its working with all 8 cores at 100% during lc and rendering max 2009 and 2010 64. set the lc passes to 8 and try a very simple scene. sometimes loading proxies etc. takes to long, that not all the cores can render...

[vlado]

If you have lots of proxies and displacement, they will reduce memory usage while the proxies are loaded or the displacement is generated.

Best regards,
Vlado

[Olli96]

Hi kein_plan,
well you seem to be right. In a very simple scene all 8 cores are showing up and the cpu usage is at 100%. Unfortunatly in the current scene i am working on this is not the case. I hope this is not related to proxies because i have to use quite a lot of them all the time. No matter what i do i cant get all 8 cores working on my current project - which kind of sucks. Even after waiting 20 minutes its not going to get better. Lucky for me that i only have to render one last image and i hope i dont have this problem in further projects.

Edit:
vlado: memory usage is not a problem, cpu usage is the problem. There is no displacement in the scene.
kein_plan: Even if i delete the proxies its not getting better. Hopefully its just the scene...

[kein_plan]

i hope its only your scene... you can try resetting and merging all in a new scene... good luck

[Dariusz Makowski (Dadal)]

Did u set to 8 cores under Number of Passes in LC?

[Olli96]

Yup, i wrote that in my first post but the forum converts it into a smilie "8"+")" =