Issue: Failed to create a virtual address space object

[xuanhoa9985]

I got issue when I run sample madd gdev.

$ cd gdev/test/cuda/user/madd

$ gdev/test/cuda/user/madd# make
nvcc -arch sm_20 -cubin -o madd_gpu.cubin madd_gpu.cu
nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning).
gcc -o user_test -g -L /usr/local/gdev/lib64 -I /usr/local/gdev/include main.c madd.c -lucuda -lgdev

$ gdev/test/cuda/user/madd# ./user_test 256
block = (16, 16)
grid = (16, 16)
[gdev]: Failed to create a virtual address space object
cuCtxCreate failed: res = 999
Test failed

my Nvidia GPU card: GeForce GT 730
Driver Version: 367.57
Thanks in advance