## Robot Structural Analysis

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# Re: Improving the speed ofmy computer (hp Z800 workstation)

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If your computer is still too slow we can organise a swap!.

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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*Hi Tony*

*Thank you for your interest , I agree but how ?*

*Regards*

*Refaat*

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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Also , I have noted that your computer has two processors while mine has only one.

Does this affect ?

I used Automatic solver = SparseM,so it does not matter.

Do not you have any "power saver" option on?

**Rafal Gaweda**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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Dear Rafal

Sorry , What do you mean by " power saver "?

Thanks

Refaat

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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Something like the option in notebooks : in case of no activity slowing down hard disk or diming screen....

Sorry , What do you mean by " power saver "?

**Rafal Gaweda**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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MUltithreaded ~1h

14:44:28 - Start of analysis #1

14:44:28 - It is suggested to use 'DSC algorithm' in case of dynamic and non-linear analysis of structure containing released directions.

The DSC algorithm option can be switched on in the 'Job preferences' dialog box (the 'Structure analysis' tab).

Do you want to continue? #1

15:08:43 - For 8 modes the mass participation factor is equal 70.19

Do you want to continue the increasing of modes?

[Press ESC to ignore all warnings] #1

15:11:54 - For 17 modes the mass participation factor is equal 76.66

Do you want to continue the increasing of modes?

[Press ESC to ignore all warnings] #1

15:15:27 - For 26 modes the mass participation factor is equal 76.70

Do you want to continue the increasing of modes?

[Press ESC to ignore all warnings] #1

15:19:20 - For 29 modes the mass participation factor is equal 86.65

Do you want to continue the increasing of modes?

[Press ESC to ignore all warnings] #1

15:23:37 - For 44 modes the mass participation factor is equal 87.23

Do you want to continue the increasing of modes?

[Press ESC to ignore all warnings] #1

15:41:05 - End of analysis #1

**Rafal Gaweda**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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**Dear Rafal**

**Good morning**

__First Trial__

**It has been done under the following conditions :**

** - turn off the display (10 min) .**

**- Method of solving (Automatic) .**

**- Save results of quadratic combination (Active)**

**I got the results after 77h16min , and I got the percent of mass participation more than (90%) after 168 mode .**

** Second Trial (pls ,sse shot 02) **

**It has been done under the following conditions:**

**- Turn off the display (never)**

**- Method of solving (Multi- threaded )**

**- Save results of quadratic combination (Not active)**

**I got the results after 2h28min , and I got the percent of mass participation more than (90%) after 127 mode.**

**My Inquiries are :**

**1 . Do you agree with me that the processor affect the calculation speed as it appears after comparing the time calculation between us using multi-threaded solver?**

** 2. why does the number of modes decreased in multi-threaded?**

**Thanks alot**

**Refaat**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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1 . Do you agree with me that the processor affect the calculation speed as it appears after comparing the time calculation between us using multi-threaded solver?

IN case of multithreded solver- yes - you can compare yours and mine times.

IN auto \ SparseM sover the times should be comparable

2. why does the number of modes decreased in multi-threaded?

I will check

**Rafal Gaweda**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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I think you are working on different models.

It is enough to run 50 modes on mine : http://www.4shared.com/zip/r9UILvSV/Strucutral_mes

**Rafal Gaweda**

# Re: Improving the speed ofmy computer (hp Z800 workstation)

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**Dear Rafal**

** **

**Actually , I am working in the same model but the settings are different.**

**I have noted that when I activated (inactive) in (model analysis parameter ) then I need to use more number of modes than if I activated (percent of mass participation ) to get (90%)**

** **

**Do you agree with me or there is any another opinion**

** **

**I appreciate your good cooperation**

**Refaat**