We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 32052

Install - How can I increase user mode virtual address space on a Windows Vista machine


I see the following error even though I have 4 GByte of RAM; how do I allow the tools to use all the RAM I have available?

ERROR:Portability:3 - This Xilinx application has run out of memory or has
encountered a memory conflict. Current memory usage is 2088772 kb.


You have to increase the user-mode virtual address space using BCDEDIT command as follows:

BCDEDIT /set increaseuserva <Megabytes>

If you want to increase it to 3GB: BCDEDIT /set increaseuserva 3072.

For more information, refer to Microsoft webpage http://msdn.microsoft.com/en-us/library/aa906211.aspx

For Windows XP machines, see (Xilinx Answer 14932)

AR# 32052
Date Created 01/30/2009
Last Updated 04/28/2010
Status Active
Type General Article