My DE5-NET board have problem. aocl command doesn't work.

I buy DE5-net for opencl.

My PC is composed epc612d8a-tb(mother board) and Xeon cpu e5-2630 v3.

My operating system is centos 6.5

I follow OpenCL User Manual in terasic home page.

“aocl flash acl0 hello_world.aocx"

Above command is success.

But, when i ran "aocl program acl0 hello_world.aocx" command, my PC stop.

also I didn't execute "aocl diagnose" command, because my PC stop.

also after aocl flash I didn't run factory image...

please give me some advice.

thanks.