Autodesk Robot Structural Analysis

[#1]

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

[#2]

Hi Tony

Thank you for your interest , I agree but how ?

Regards

Refaat

[#3]

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?

[#4]

Dear Rafal

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

Thanks

Refaat

[#5]

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 "?

[#6]

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

[#7]

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

[#8]

 

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

[#9]

I think you are working on different models.

It is enough to run 50 modes on mine : http://www.4shared.com/zip/r9UILvSV/Strucutral_meshed1.html

[#10]

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