FPGA Out of Memory

[FlamingYawn]

The LabVIEW FPGA Compile Server 2009 reports that the Xilinx application has run out of memory and that the current memory usage is 2090696 kb.  My computer has 3.5 GB of RAM installed.  Is there a setting somewhere that caps the usage to 2 GB?  How can I use all of my memory?

[RDR]

I believe the LabVIEW compile server is a 32-bit application and is limited to 2GB of address space (check out this MSDN document: http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.aspx). There are flags you can modify to allow use of more memory and MSDN has documentation supporting this.

There is a LabVIEW Help document describing the process for increasing address space here: http://zone.ni.com/reference/en-XX/help/371361F-01/lvhowto/enable_lrg_ad_aware/ 

...And this particular issue of the LabVIEW Compile Server running out of memory has been documented here: http://digital.ni.com/public.nsf/allkb/F89C3D88819B8DE68625744800815537 

Message Edited by B O B on 02-26-2010 03:58 PM

[Donovan_B]

In this instance, the application that is running out of memory is the Xilinx compiler, not the LabVIEW compile server.  This isn't necessarily a limitation of the LabVIEW or Xilinx, but rather the Windows operating system.  On 32-bit systems, Windows can allow 4 GB of virtual memory space per process.  However, by default, this allocation is split up so the process gets 2 GB and the OS gets 2 GB.  So, Windows is only allowing the Xilinx tools to access 2 GB of virtual memory.

The process that Bob linked basically tells Windows to only take 1 GB for itself and allow the other 3 GB to be used by applications, which should help your compiles to complete.