QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: fanjiaping on December 25, 2010, 16:19

Title: net error
Post by: fanjiaping on December 25, 2010, 16:19

     Recently, the problem about net error always appeared. The information was attached below.

Connection to server [ localhost : 6200 ] lost - trying to reconnect.
Server could not re-checkout feature because:
Unexpected network-related error occurred
rank 0 in job 20  master_52926   caused collective abort of all ranks
  exit status of rank 0: return code 1

could you kindly tell me what is the reason of the question? how to fix it ?
Thank you!

the second question:

+------------------------------------------------------------------------------+
|  12 E = -252.188 dE =  9.504735e-06 dH =  7.931225e-08                       |
+------------------------------------------------------------------------------+
| Calculation Converged in 12 steps                                            |
|                                                                              |
| Fermi Level  = -0.065674 Ha                                                  |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|                                                                              |
| Right Electrode Calculation  [Finished Fri Dec 24 22:35:05 2010]             |
|                                                                              |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|                                                                              |
| Device Density Matrix Calculation   [Started Fri Dec 24 22:35:05 2010]       |
|                                                                              |
+------------------------------------------------------------------------------+
| Left electrode chemical potential  = -0.065674 Ha                            |
| Right electrode chemical potential = -0.065674 Ha                            |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|                                                                              |
| Equivalent Bulk  [Started Fri Dec 24 22:35:36 2010]                          |
|                                                                              |
+------------------------------------------------------------------------------+
rank 0 in job 1  compute-0-6_35793   caused collective abort of all ranks
  exit status of rank 0: killed by signal 9

does it mean there is no enough memory of computer?

Title: Re: net error
Post by: Anders Blom on December 26, 2010, 21:20

The first issue must be related to your network, somehow it is unstable and the nodes lose contact with each other.

The second question: yes, it means you ran our of memory. ATK 11.2 will have much better memory management and use less RAM.