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You must define threads as 2 if you have a HyperThreading CPU.
Use -th:2 or -th:0 (autodetection) in your commandline parameters.

you need to find where the cmd options are in the render dialog and you will see a "-d"

...than simply edit it and type -th:16

...so your cmd options should be like: -d -th:16

the reason I say 16 is to gurantee to render with all you cpu's.
Also under Maxwel 1.33 (not sure a bout 1.2.xx) I have seen improved rendetimes with 16 threads...

Additionally you can add -p:low which gives maxwell low priority and enables you to use your computer (for internet etc.) while rendering.

hope this helps,
Andron

maxxoros wrote:But as you can see, I am using two processor now...and the problem still the same
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Or maxwell now can not use all CPU resource?

that does not mean that you render with 2 cpu's. But that maxwell (for licensing perposes) detected 2cpu's! (virtual & physical)

cy,
Andron

maxxoros wrote:thanks alot ,100% CPU usage now

maxxoros, so how are you getting 100% CPU usage? with -th:16 or -th:2?

In your case it is optimal using 2 threads.


P.S: I see that you are using 1_2_0_beta... 1_2_2a_beta is already available