I’m trying to get the new 2.0 beta kernel drivers (174.55) to work with the Tesla C870. Previous drivers (such as 169.09) appear to work fine with the same C870 hardware. Also unusual is that the beta driver (174.55) does work with a Quadro NVS 290 card (also installed on the machine); it’s just the C870 card that has the problem.
Actually, to be more specific, I think the C870 might work with the beta drivers, but just be extremely slow. For example, the bandwidth test gives Device-Device copies of 200 MB/s, whereas I was expecting ~64 GB/s.
I’ve included some more information about my system. Thanks in advance for your help.
Linux version 2.6.18-53.1.14.el5 (email@example.com) (gcc version 4.
1.2 20070626 (Red Hat 4.1.2-14)) #1 SMP Wed Mar 5 11:36:49 EST 2008
CentOS release 5 (Final)
Using device 1: Tesla C870
Device to Device Bandwidth
Transfer Size (Bytes) Bandwidth(MB/s)
&&&& Test PASSED