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Wow! My first blog post as an OSIsoft vCampus All-Star. Only six months after the vCampus Live! event of 2010!


I've been planning on writing this blog post ever since I got home from San Francisco last september, been extremely busy with interesting projects during the winter, and finally found some time for it today.












At vCampus Live! 2010 I presented the PI Asset Framework (AF) Speeds Up Time to Solution together with Stephen Kwan. If you didn't attend, you can watch it or download the original presentation at this link. The presentation shows my different efforts on finding the best way to import a hierarchical data structure from a lifecycle asset information management system called COMOS, and I tested the performance of these three options:



  1. Importing the data using the AFBuilder plugin for Excel
  2. Using the AFImport command line tool, (the same as importing through PI System Explorer)
  3. Using the AF SDK through Microsoft Visual Studio

I ended up using the second option - to import the data through the AFImport command line tool, as this turned out to be the most efficient way for me. As you can see in the presentation - or in the image to the right - I ended up with an average performance of appr. 500-700 elements per minute. My most efficient run included 133 430 elements based on a single Element Template, imported in 2 hours and 55 minutes - averaging at 762 elements per minute.


After my presentation I spoke with Chris Manhard, AF Development Lead at OSIsoft. He thought my performance seemed a bit lower than expected, and after I had returned home to Norway we did some investigations around my setup to see what would cause this. The result was I didn't have AF Server 2010 installed, and he explained they had made significant performance improvements with this release compared to the previous. I had been working on this project since early 2010, and the 2010 line of products - including the AF Server 2010 - wasn't released before August, about a month before the vCampus Live! event. So my results were all based on the AF version released in December 2009.






So, after installing AF Server 2010, here are the updated numbers:

  • 133 430 elements based on a single Element Template
  • Imported in 8 minutes and 45 seconds
  • Average speed of 15 250 elements per minute.

Now, that - ladies and gentlemen - is a 95% reduction in time!
Which truly means that "PI AF Speeds up time to solution"




I have added a new slide to the presentation, with the updated findings. Click here to download it!

Ahmad Fattahi

Happy PI Day!

Posted by Ahmad Fattahi Employee Mar 14, 2011



Today is March 14 or 3/14, hence PI day! Happy PI day to all PI Community including our beloved OSIsoft vCampus.


thinking about PI, I couldn't resist revisiting this beautiful equation, known as the Euler's formula. The equation is:


e ^ ( i * pi) + 1 = 0


You may ask "Where is the beauty?" Well:

  • e is the base of the Natural Logarithm whose roots go back to the integral of the function y = 1 / x.
  • i is the imaginary unit; as you know i = sqrt (-1).
  • pi is the irrational number which is the ratio of every circle's perimeter to its diameter.
  • 1 is the multiplicative identity hence pretty fundamental in calculus.
  • 0 is the additive identity hence pretty fundamental in calculus.

As you see all these numbers come from very different backgrounds and is each very fundamental in its own turn. The Euler's equation bonds all of them together in a very basic way.


Some geeks call this "the most beautiful equation in mathematics"!



PI ACE 2010 R2 is now available for download, please refer to the following post if you have previously downloaded PI ACE 2011 or PI ACE 2011a




PI ACE 2010 R2  [updated]

Posted by gmoffett Employee Mar 5, 2011



PI ACE 2010 R2 is now available from vCampus downloads or the OSIsoft technical support website


The previous install kits for PI ACE 2011 and PI ACE 2011a are no longer available and we request that customers who have these versions installed, uninstall them and install PI ACE 2010 R2.


PI ACE 2010 R2 resolves the following items:


·         Timeout setting included in PI ACE 2011 - this has been removed

·         A new version of the PI API for 64-bit Windows has been included that does not change the application name length used in trusts. For information on API trusts, refer to KB00433 Upgrading PI API Applications From 32-bit to 64-bit and PI Trusts based on Application Name

·         Name change to PI ACE 2010 R2


PI ACE 2010 R2 replaces PI ACE 2011 and 2011a and is available from the OSIsoft Technical Support Download Center and OSIsoft vCampus after login.


If you have installed PI ACE 2011 or 2011a, please follow the steps below to remove it and install PI ACE 2010 R2:


        I.            To uninstall PI ACE 2011 or 2011a, select it for removal in the Add/Remove Programs utility in Control Panel for Windows XP and 2003 Server, or the Programs and Features Control Panel for Windows Vista, 2008 Server, and Windows 7.


      II.            Download and install the corrected PI ACE 2010 R2 from the Tech Support Download Center.


    III.            Verify that the new version is installed: From Add/Remove Programs utility in Control Panel for Windows XP and 2003 Server, or the Programs and Features Control Panel for Windows Vista, 2008 Server, and Windows 7,  verify the product name (PI Advanced Computing Engine (ACE) 2010 R2) and version (


We apologize for any inconvenience.  Please feel free to contact our Technical Support ( if you have any questions regarding the process of upgrading.


PI ACE 2011 - released

Posted by gmoffett Employee Mar 2, 2011



Over on the analytics blog we talk about the just released PI ACE 2011!


Glenn Moffett | OSIsoft - Product Management




PI ACE 2011 released!

Posted by gmoffett Employee Mar 2, 2011



A great start to the month, PI ACE 2011 is released!


If you would like more information about the release there is a vCampus Live 2010 presentation available via the Live link on the vCampus home page. Also we'll be reviewing the release later this month at the Builders Cafe Webinar series along with a presentation at the upcoming Users Conference.


In summary PI ACE 2011 introduces support for Visual Studio 2010 and 64-bit along with performance and scalability improvements.


Performance improvements include faster cache acess and scalability by now allowing you to run multiple ACE schedulers (on different servers) to host calculations.


So you could say PI ACE 2011 is more sustainable - allowing you to do more calculations with less resources!

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