System Requirements
Table 3-5:
Peak Memory Requirements: 64-bit OS
Memory: 64-bit
OS
12GB
16GB
20GB
24GB
32GB
Family
Virtex-5
Virtex-6
Kintex-7
Virtex-7
Virtex-6
Virtex-7
Virtex-6
Virtex-7
Virtex-7
Virtex-7
Device Size
5V330
6V315 - 6V365
7K410
7V450 - 7V485
6V380 - 6V550
7V585 - 7V855
6V565 - 6V760
7V865 - 7V870
7V1500
7V2000
Operating Systems and Available Memory
The Microsoft Windows and Linux ? operating system (OS) architectures have limitations
on the maximum memory available to a Xilinx program. Users targeting the largest
devices and most complex designs may encounter this limitation. ISE Design Suite 13 has
optimized memory and enabled software support for applications to increase RAM
memory available to Xilinx software.
Windows XP Professional 32-bit
Xilinx applications are enabled to take advantage of the memory increase feature on
Windows 32-bit. You must then modify Windows setting to get access to this larger
memory.
The standard Windows OS architecture limits the maximum memory available to a Xilinx
process to 2 Gigabyte (GB). In Windows XP Professional, Microsoft created an option to
support the ability of an application to address 3 GB of RAM. Xilinx ISE applications have
built-in support for this option. To take advantage of this capability, you must also modify
your Windows XP OS to enable this feature, which requires that you modify your
boot.ini file by adding a “/3GB” entry to the end of the “startup” line.
Before enabling 3 GB support for Xilinx applications, please read the Microsoft Knowledge
Base Article #328269 at http://support.microsoft.com/?kbid=328269 . If you upgrade your
computer to Windows XP Service Pack 1 (SP1) and you are using the /3GB switch,
Windows may not restart without a patch from Microsoft. Please see (Xilinx Answer 17905)
for more information.
Additionally, before making this change, please read:
?
?
us;Q171793 , which contains information on “Application Use of 4GT RAM Tuning”.
us;q289022 , contains instructions for editing your boot.ini file.
ISE Design Suite 13: Release Notes Guide
UG631 (v 13.1)
35
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