Fail to launch CUDA-MPS

The cuda-mps log files show:

server.log

[2015-10-24 14:13:39.529 Other  3798] New client 3999 connected
[2015-10-24 14:13:39.549 Other  3798] New client 4001 connected
[2015-10-24 14:13:39.551 Other  3798] New client 4002 connected
[2015-10-24 14:13:40.660 Other  3798] New client 4002 connected
[2015-10-24 14:13:40.660 Other  3798] New client 4001 connected
[2015-10-24 14:13:40.662 Other  3798] Client 4001 disconnected
[2015-10-24 14:13:40.662 Other  3798] Client 4002 disconnected
[2015-10-24 14:13:40.666 Other  3798] Client 4002 disconnected
[2015-10-24 14:13:40.666 Other  3798] Client 4001 disconnected
[2015-10-24 14:13:40.669 Other  3798] Client 3999 disconnected
[2015-10-24 14:13:49.367 Other  3798] Waiting for current clients to finish
[2015-10-24 14:13:49.367 Other  3798] Exit

The control.log

[2015-10-24 14:13:39.529 Control  3794] Accepting connection...
[2015-10-24 14:13:39.529 Control  3794] NEW CLIENT 3999 from user 1005: Server already exists
[2015-10-24 14:13:39.549 Control  3794] Accepting connection...
[2015-10-24 14:13:39.549 Control  3794] NEW CLIENT 4001 from user 1005: Server already exists
[2015-10-24 14:13:39.551 Control  3794] Accepting connection...
[2015-10-24 14:13:39.551 Control  3794] NEW CLIENT 4002 from user 1005: Server already exists
[2015-10-24 14:13:40.660 Control  3794] Accepting connection...
[2015-10-24 14:13:40.660 Control  3794] NEW CLIENT 4002 from user 1005: Server already exists
[2015-10-24 14:13:40.660 Control  3794] Accepting connection...
[2015-10-24 14:13:40.660 Control  3794] NEW CLIENT 4001 from user 1005: Server already exists
[2015-10-24 14:13:49.367 Control  3794] Accepting connection...
[2015-10-24 14:13:49.367 Control  3794] NEW UI
[2015-10-24 14:13:49.367 Control  3794] Cmd:quit
[2015-10-24 14:13:49.948 Control  3794] Server 3798 exited with status 0
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.cc
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.cb
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.ca
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c9
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c8
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c7
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c6
[2015-10-24 14:13:49.949 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c5
[2015-10-24 14:13:49.950 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c4
[2015-10-24 14:13:49.950 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c3
[2015-10-24 14:13:49.950 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c2
[2015-10-24 14:13:49.950 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c1
[2015-10-24 14:13:49.950 Control  3794] Removed Shm file at /dev/shm/cuda.shm.ed6.c0

When I execute uname -a the output is:

Linux mistral 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux