[ltp] cuda and the quadro nvs 140M, memory allocation issues

Micha Feigin linux-thinkpad@linux-thinkpad.org
Sat, 10 Jan 2009 20:11:15 +0200


I'm trying to learn cuda programming (run programs on the gpu) under my t61
with the quadro nvs 140m card.

I keep getting memory allocation failures and anything but very small
allocations.

I don't know if it's related but it seems that the card is wrongly reporting
the amount of memory it has.

AFAIK it should have 256MB memory. nvidia settings shows though that it has
512MB and I don't know how to check what it's saying.

I'm also guessing that X is taking too much of the video memory but not sure.

Graphics Processor: Quadro NVS 140M
VBIOS Version: 60.86.3e.00.00
Memory: 512 MB
Bus Type: PCI Express 16X
Bus ID: 1:0:0
IRQ: 16
X Screens: Screen 0
Display Devices: IBM (DFP-0)

any ideas?