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Another interesting phenomenon!!

Question asked by Rajat Jain on May 25, 2011
Latest reply on May 25, 2011 by Rajat Jain

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Hi..

Not sure whether this is a bug or not.

I am trying to open multiple SW files (Parts / Drawings / Assys) in SW simultaneously by rectangular selection in browse file dialog box. When I select around 50 files, SW starts opening each file but crashes at 45th file.

I am on SW 2010 SP.0 on Win Vista x86 with enough RAM and hardware to open these files. It does not matter what file size I choose or how complex the model is.

My task manager still shows some memory so I believe SW does not start writing on the HDD and hence crash.

Let me know if anyone has observed it.

Thanks

Rajat Jain

Charles Culp May 25, 2011 9:46 AM

Correct Answer

Wow. 45+ active documents at once? That never sounds like a good idea to begin with. Why would you possibly need to have 45 document windows open? That is not good practice, and I can understand why SolidWorks would choke.

You are probably running out of system resources because you have so many windows open. Open the task manager, and View>Add Columns to add GDI Objects. how many are in use when you open 45 documents? https://forum.solidworks.com/community/administration/performance/blog/2011/03/07/system-resources-running-low-aka-gdi-handle-depletion

I suggest another method than opening up 45 documents at once, there has to be a better way.

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Charles Culp May 25, 2011 9:46 AM

I suggest another method than opening up 45 documents at once, there has to be a better way.

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Russ Johnston @ Charles Culp on May 25, 2011 10:14 AM

I agree with Charles on this one. 45+ documents open at once is not good practice. For me, 5 open at once would be very rare.

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Rajat Jain @ Russ Johnston on May 25, 2011 10:30 AM

Russ,

I agree that its not a good practice to open many documents simultaneously in SW. Its just that I want to be sure that the issue is not with my addin.

Thanks a lot for your help..

Rajat Jain

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Ronan Carrroll @ Charles Culp on May 25, 2011 10:33 AM

What is GDI and where do I find it?? Using Vista 64 sw2010 sp5

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Deepak Gupta @ Ronan Carrroll on May 25, 2011 10:41 AM

Check the link Charles posted above.

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Kelvin Lamport @ Ronan Carrroll on May 25, 2011 10:42 AM

Open the Task Manager and select View > Select Columns > GDI Objects

See my first post here for a link to GDI Objects

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Ronan Carrroll @ Kelvin Lamport on May 25, 2011 10:56 AM

Ok right. Thank you for the replies.

Now Define GDI. I dont know what is stands for ,the articles don't seem to define it.

My task manager under View doesn,t have a column to show GDI. Maybe you mean some other task manager in the control panel area.

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Task Manager..PNG125.2 KB

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Rajat Jain @ Ronan Carrroll on May 25, 2011 11:14 AM

Ronan,

Sorry I missed your last post.

GDI is called Graphics Device Interface objects and they are associated with Graphics rendering. There can be manu GDI objects associated with a process. You can Click on View->Select Column on your task manager and check GDI objects as shown below.

Also, please check these links: -

http://technet.microsoft.com/en-us/library/cc958260.aspx

http://en.wikipedia.org/wiki/Graphics_Device_Interface

Hope it helps!!!

Rajat Jain

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Rajat Jain @ Charles Culp on May 25, 2011 10:49 AM

Charles,

I just read the MSDN post on GDI objects and how to set it limits. I have checked by changing the limits also and the result seems fine.

The link is as below: -

http://msdn.microsoft.com/en-us/library/ms724291(v=vs.85).aspx

Thanks a lot for your help. Its a great learning.

Rajat Jain

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Deepak Gupta May 25, 2011 10:17 AM

Can you upgrade the SP to test if that helps but as Charles asked, I'm equally excited to know as why you need to open those number of files at same time??

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Rajat Jain @ Deepak Gupta on May 25, 2011 10:23 AM

Charles / Deepak,

I have an addin application which allows user to select and open SW files. One of my testers has just reported this issue when he was testing the addin where-in he has opened many files.

I have just tested the same situation in SW (without addin) to check for the issue and could reproduce it with SW.

Also, as Charles has said, SW crashes as soon as GDI object count reaches 10,000. In addition, SW has NOT displayed the message "system running low in memory".

I have only one instance of SW running with multiple models open.

Thanks a lot for your help.

Rajat Jain

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Scott McFadden May 25, 2011 10:22 AM

Rajat,

I would say 45 document files open at once is a bit excessive. I usually don't have more then

6-7. I would also upgrade to the lates SP (5.0) if I were you.

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Rajat Jain @ Scott McFadden on May 25, 2011 10:24 AM

Scott,

Please pardon me for the typo error. I am at SW 2010 SP 5.0.

Rajat Jain

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Kelvin Lamport May 25, 2011 10:39 AM

The link below has an enlightening "Pushing The Limits" series of blog articles about Windows, memory, etc.

http://blogs.technet.com/b/markrussinovich/archive/2010/02/24/3315174.aspx

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14 Replies

Charles Culp May 25, 2011 9:46 AM
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Correct Answer
Wow. 45+ active documents at once? That never sounds like a good idea to begin with. Why would you possibly need to have 45 document windows open? That is not good practice, and I can understand why SolidWorks would choke.

You are probably running out of system resources because you have so many windows open. Open the task manager, and View>Add Columns to add GDI Objects. how many are in use when you open 45 documents? https://forum.solidworks.com/community/administration/performance/blog/2011/03/07/system-resources-running-low-aka-gdi-handle-depletion

I suggest another method than opening up 45 documents at once, there has to be a better way.
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- Russ Johnston @ Charles Culp on May 25, 2011 10:14 AM
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  I agree with Charles on this one. 45+ documents open at once is not good practice. For me, 5 open at once would be very rare.
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  - Rajat Jain @ Russ Johnston on May 25, 2011 10:30 AM
    Mark Correct
    Correct Answer
    Russ,
    
    I agree that its not a good practice to open many documents simultaneously in SW. Its just that I want to be sure that the issue is not with my addin.
    
    Thanks a lot for your help..
    
    Rajat Jain
    Like • Show 0 Likes0
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- Ronan Carrroll @ Charles Culp on May 25, 2011 10:33 AM
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  Correct Answer
  What is GDI and where do I find it?? Using Vista 64 sw2010 sp5
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  - Deepak Gupta @ Ronan Carrroll on May 25, 2011 10:41 AM
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    Check the link Charles posted above.
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  - Kelvin Lamport @ Ronan Carrroll on May 25, 2011 10:42 AM
    Mark Correct
    Correct Answer
    Open the Task Manager and select View > Select Columns > GDI Objects
    
    See my first post here for a link to GDI Objects
    Like • Show 0 Likes0
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    - Ronan Carrroll @ Kelvin Lamport on May 25, 2011 10:56 AM
      Mark Correct
      Correct Answer
      Ok right. Thank you for the replies.
      Now Define GDI. I dont know what is stands for ,the articles don't seem to define it.
      
      My task manager under View doesn,t have a column to show GDI. Maybe you mean some other task manager in the control panel area.
      Attachments
      Task Manager..PNG125.2 KB
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      - Rajat Jain @ Ronan Carrroll on May 25, 2011 11:14 AM
        Mark Correct
        Correct Answer
        Ronan,
        
        Sorry I missed your last post.
        
        GDI is called Graphics Device Interface objects and they are associated with Graphics rendering. There can be manu GDI objects associated with a process. You can Click on View->Select Column on your task manager and check GDI objects as shown below.
        
        Also, please check these links: -
        
        http://technet.microsoft.com/en-us/library/cc958260.aspx
        
        http://en.wikipedia.org/wiki/Graphics_Device_Interface
        
        Hope it helps!!!
        
        Rajat Jain
        Like • Show 0 Likes0
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- Rajat Jain @ Charles Culp on May 25, 2011 10:49 AM
  Mark Correct
  Correct Answer
  Charles,
  
  I just read the MSDN post on GDI objects and how to set it limits. I have checked by changing the limits also and the result seems fine.
  
  The link is as below: -
  
  http://msdn.microsoft.com/en-us/library/ms724291(v=vs.85).aspx
  
  Thanks a lot for your help. Its a great learning.
  
  Rajat Jain
  Like • Show 0 Likes0
  Actions
Deepak Gupta May 25, 2011 10:17 AM
Mark Correct
Correct Answer
Can you upgrade the SP to test if that helps but as Charles asked, I'm equally excited to know as why you need to open those number of files at same time??
Like • Show 0 Likes0
Actions
- Rajat Jain @ Deepak Gupta on May 25, 2011 10:23 AM
  Mark Correct
  Correct Answer
  Charles / Deepak,
  
  I have an addin application which allows user to select and open SW files. One of my testers has just reported this issue when he was testing the addin where-in he has opened many files.
  
  I have just tested the same situation in SW (without addin) to check for the issue and could reproduce it with SW.
  
  Also, as Charles has said, SW crashes as soon as GDI object count reaches 10,000. In addition, SW has NOT displayed the message "system running low in memory".
  
  I have only one instance of SW running with multiple models open.
  
  Thanks a lot for your help.
  
  Rajat Jain
  Like • Show 0 Likes0
  Actions
Scott McFadden May 25, 2011 10:22 AM
Mark Correct
Correct Answer
Rajat,
I would say 45 document files open at once is a bit excessive. I usually don't have more then
6-7. I would also upgrade to the lates SP (5.0) if I were you.
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- Rajat Jain @ Scott McFadden on May 25, 2011 10:24 AM
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  Scott,
  
  Please pardon me for the typo error. I am at SW 2010 SP 5.0.
  
  Rajat Jain
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  Actions
Kelvin Lamport May 25, 2011 10:39 AM
Mark Correct
Correct Answer
The link below has an enlightening "Pushing The Limits" series of blog articles about Windows, memory, etc.

http://blogs.technet.com/b/markrussinovich/archive/2010/02/24/3315174.aspx
Like • Show 0 Likes0
Actions

Another interesting phenomenon!!

I am on SW 2010 SP.0 on Win Vista x86 with enough RAM and hardware to open these files. It does not matter what file size I choose or how complex the model is.

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