Carpet render error

Hi,
I am using instancing brush to create a carpet.
When I try to render it, I get this error:

"some errors appeared during rendering - please check console logging. The rendering may be incoreect in certain areas (black dots) or completely black due to an initialization error. It may also be that there are not enough resources to support the rendering technique used due to scene complexity. Pleasy save your scene! "

I have uploaded the file on Wetransfer: http://wtrns.fr/rvCTTL_v2yiY_U

Any feedback is greatly appreciated.

My system configuration:
Windows XP Professional
Version 2002
Service Pack 3
Intel Core i7 CPU Q740 @ 1.73GHz
916 MHz, 2.92 GB RAM

Thanks

update:
I managed to get a render by increasing the virtual memory, but it still takes too long to render even with basic low level settings

I guess people here with beautiful renders really have very high end machines

[Fletch]

render instanced objects only with unbiased render settings.
Try MLT (preset 20)