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tjibbe
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PostPosted: Mon May 09, 2016 8:14 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

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it is not easy to predict what will AC20 demand. But current picture tells me: "go for cores, not frequency".


I thought that if the CPU are from the same generation (14nm) the CPU underneath are equal speed.

4 core @ 3.6ghz (4x3,6=14,4ghz)
6 core @ 2.4ghz. (6x2,4=14,4ghz)

But for AC the 6-core will be faster? If so, is this because other processes don't need the full 3.6ghz. But only need a little part and the rest of the ghz can not be shared with AC?
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Vahur
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PostPosted: Mon May 09, 2016 8:57 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

tjibbe wrote:
Quote:
it is not easy to predict what will AC20 demand. But current picture tells me: "go for cores, not frequency".


I thought that if the CPU are from the same generation (14nm) the CPU underneath are equal speed.

4 core @ 3.6ghz (4x3,6=14,4ghz)
6 core @ 2.4ghz. (6x2,4=14,4ghz)

But for AC the 6-core will be faster? If so, is this because other processes don't need the full 3.6ghz. But only need a little part and the rest of the ghz can not be shared with AC?


This is not corect math 4x3.6 not equal to 6x2.4 in computer world.
Basically yes, AC do not use cores at full load, so more threads - higher performance in theory. I see some proofs of this in real work.

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shtarkel
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PostPosted: Mon May 09, 2016 10:46 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

When ARCHICAD renders it uses all the cores at 100%! Also the cores are used intense in section/elevation.
So more cores and overclocked is the best solution, that's why I use the Intel 3930k.

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Vahur
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PostPosted: Wed May 11, 2016 11:58 am    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

shtarkel wrote:
When ARCHICAD renders it uses all the cores at 100%! Also the cores are used intense in section/elevation.
So more cores and overclocked is the best solution, that's why I use the Intel 3930k.

100% CPU load i see only during the photorendering. While working with plan/section/elevations/3D window CPU utilization is ~ 20%



Capture.PNG
 Description:
Processor load during regeneration of all sections and elevations in the project
 Filesize:  23.98 KB
 Viewed:  148 Time(s)

Capture.PNG



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shtarkel
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PostPosted: Wed May 11, 2016 1:11 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

Thats exactly what I said! Try making a complex section and see your CPU? Make a screenshhot again Smile
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Vahur
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PostPosted: Wed May 11, 2016 2:06 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

shtarkel wrote:
Thats exactly what I said! Try making a complex section and see your CPU? Make a screenshhot again Smile

I think that section, which is taking more than a minute to regenerate, is complex enough. There are 15 sections, 4 elevations

none of the cores is utilized more than 20%

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shtarkel
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PostPosted: Wed May 11, 2016 3:25 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

20% is because the engine behind ARCHICAD don't utilize all the CPU power but 20% is not small, also when I update drawings, make complex sections...etc. The CPU utilization has spikes!


Screenshot_2016-05-11_172125.jpg
 Description:
 Filesize:  57.16 KB
 Viewed:  134 Time(s)

Screenshot_2016-05-11_172125.jpg



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Vahur
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PostPosted: Thu May 12, 2016 7:28 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

shtarkel wrote:
20% is because the engine behind ARCHICAD don't utilize all the CPU power but 20% is not small, also when I update drawings, make complex sections...etc. The CPU utilization has spikes!

20% is not enough for me. It is quite annoying to wait 5-10 minutes just to change some property for all stud walls in the plan.

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Jacques Toerien
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PostPosted: Sat Jun 04, 2016 9:22 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

I know it's one month later, but rather than looking at the graph showing the 'average' CPU usage, open the Resource Meter and look at the graph for each CPU core / virtual core. You should be able to see how the cores are used (or not) when updating sections / elevations / shadows etc. as you can see all the cores in one view.
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Vahur
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PostPosted: Fri Jun 10, 2016 8:18 pm    Post subject: Re: new PC advice (old pc: slow updates on elevations) Reply with quote

Jacques Toerien wrote:
I know it's one month later, but rather than looking at the graph showing the 'average' CPU usage, open the Resource Meter and look at the graph for each CPU core / virtual core. You should be able to see how the cores are used (or not) when updating sections / elevations / shadows etc. as you can see all the cores in one view.

I did it as well. Every core is utilised 0-20%

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