Creating Chart in DIAdem

[VenkateshMurthy]

Hi

   I need to create Chart report in DIAdem to display channel values with a constraint of maximum 14 channels and 16 rows of values for each channel per sheet. Since the channel lengths are typically several thousands, the number of sheets in the report also runs into thousands. During execution of the chart generation, invariably after about 300 - 350 pages are generated, I get an error saying something like this:

"Not enough memory for the new graphic page "Sheet1". 347 pages are currently specified in REPORT."

How do I overcome this memory problem ? Could someone please help ?

Thanks in advance

Venkatesh Murthy.

[Brad_Turpin]

Hi Venkatesh Murthy,

After you've run into this error, check the Windows Task Manager to see how much available RAM you have left on your PC.  My guess is that you just need to buy more RAM or close down some other applications (Lotus Notes?) to free up more RAM.

Brad Turpin
DIAdem Product Support Engineer
National Instruments

[VenkateshMurthy]

Thanks for the suggestion, Brad.

[Siriusly]

I have ran into the same problem.  I get the noted "Not enough memory" error around page 300.  I started out with 2.5 GB of ram and then upgraded to 4 GB.  Upgrading the ram did not help, I still error out arond page 300.   Did simply upgrading the ram help anyone else or is there anything else I need to do?  

[Siriusly]

Update....  According to Windows task manager I have 3GB of free physical memory and DIAdem is using 305kB physical and 370kB virtual when the error occurs.  It doesn't appear to be a windows limitation. 

What else could it be???

[Brad_Turpin]

Hi Siriusly,

Would you be able to post your VBScript and your data files so we can reproduce this problem and begin to debug it?  This 300 sheet issue has popped up a couple of times now, but it is not a hard limit-- I have created over 1000 sheets before with no problems.  It must be something specific to your reports.  Do you use 3D plots on any of your 300 sheets (they tend to be memory-intensive)?  Based on your latest data it does sound like we can abandon the idea of an OS memory limitation, but there may still be a DIAdem-imposed memory limitation that results in 1000 simple sheets being OK but 300 memory-intensive sheets being too much.

Brad Turpin
DIAdem Product Support Engineer
National Instruments

[Siriusly]

 I have uploaded the Script and report layouts to the ni.ftp site (300 Page Issue.zip).  You must load your data manually before running the script.  I have password protected the zip file and I will need to email you the password.  The report is basically all text objects and not  really conventional "data"

Thanks for the help Brad

[Brad_Turpin]

Hi Siriusly (and others),

R&D has confirmed that DIAdem 11.1 introduced a memory fragmentation issue that is behind the behaviour you are seeing here.  As far as we know this problem did not exist in any previous DIAdem version.  We also hope to remove it from subsequent DIAdem versions.  For the time being, my recommendation is to load and configure each REPORT sheet separately and append them to the PDF file by setting the optional second parameter of the PicPdfPrint() command to TRUE.  This will mean that you only have 1 REPORT sheet loaded in memory at any given time, so it should sidestep the problem in DIAdem 11.1.

Brad Turpin
DIAdem Product Support Engineer
National Instruments