[yuyuxuan]

I run the fluent nohup in the parallel computer, and it lasts for 2 days. Today morning, I went to see the results, it strangely stops and it shows the below error. Why? I want to help. Thanks for advance.

  iter continuity x-velocity y-velocity z-velocity     time/iter
 38111 5.4242e-05 1.4138e-06 2.5756e-06 1.4176e-06  0:01:04   19
 38112 5.3630e-05 1.3996e-06 2.5592e-06 1.4046e-06  0:00:59   18
 38113 5.3395e-05 1.3932e-06 2.5500e-06 1.3985e-06  0:00:55   17
 38114 5.3219e-05 1.3901e-06 2.5545e-06 1.3946e-06  0:00:54   16
 38115 5.2771e-05 1.3850e-06 2.5411e-06 1.3847e-06  0:00:50   15
 38116 5.2596e-05 1.3794e-06 2.5360e-06 1.3818e-06  0:00:46   14
 38117 5.2455e-05 1.3772e-06 2.5296e-06 1.3842e-06  0:00:43   13
 38118 5.2373e-05 1.3745e-06 2.5366e-06 1.3786e-06  0:00:40   12
 38119 5.2320e-05 1.3714e-06 2.5324e-06 1.3750e-06  0:00:37   11

Warning: License server connection lost.poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup

Error: Connection to the license server has been lost.
       FLUENT will not continue until the license connection is restored.

Error Object: #f

> The current data has not been saved.
OK to discard? [no]

[Vidyanand Kesti]

if your server was shut down or power cut-off for internet

[yuyuxuan]

Originally Posted by Vidyanand Kesti

if your server was shut down or power cut-off for internet

Thanks for replying, it will happen each 3 days and it may not the power reason.

[cfdhrl]

Originally Posted by yuyuxuan

Thanks for replying, it will happen each 3 days and it may not the power reason.

Excuse, have you solved this problem? Recently I also come across this issue when running parallel FLUENT on Linux Computers. It is as follow:

Flow time = 0.64349997, time step = 12870
7130 more time steps
Updating solution at time levels N and N-1.
done.
iter continuity x-velocity y-velocity z-velocity time/iter
Warning: License server connection lost.poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup

Any other inputs is helpful,
thanks a lots!

[yuyuxuan]

Originally Posted by cfdhrl

Excuse, have you solved this problem? Recently I also come across this issue when running parallel FLUENT on Linux Computers. It is as follow:

Flow time = 0.64349997, time step = 12870
7130 more time steps
Updating solution at time levels N and N-1.
done.
iter continuity x-velocity y-velocity z-velocity time/iter
Warning: License server connection lost.poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup
poll: protocol failure in circuit setup

Any other inputs is helpful,
thanks a lots!

Today, I may find the reason, Yes,may.
Do you change the nodes in parallel computer?

The nodes text may:

node1
node1
node2
node2

It may cause the problem.

But if no change, what I mean like that:

node1
node1

I get Ok but for only one calculation.
Maybe Time will tell, and you just wait and see