Restart Job Radioss

Altair Forum User

Good morning All,

 

We had a power failure due to bad weather and no power for more then 30min.

Therefore UPS out of luck too.  /emoticons/default_sad.png' alt=':(' srcset='/emoticons/sad@2x.png 2x' width='20' height='20'>

 

notes.

May not have succesfully used the STOP command to stop the job.

How do I restart the job and continue the job again.

 

Any advice?

 

Just too afraid to type in the wrong command and lose the work.

 

Regards, Hary

Altair Forum User

Hi Harry,

 

There are two different ways to restart your job.

1. If you want to stop the job during the computation and later continue the computation after that stopping point, you need to create a control file.

e.g.  Your model named TEST_0000.rad for Starter and TEST_0001.rad for Engine.

Then you should create TEST_0001.ctl in the current fold. In this file you just give the following keyword:

/STOP

Then, RADIOSS will read this control file and stop the job and also write a restart file.

Now to continue your job, the second Engine file TEST_0002.rad should be created. Simply copy the first Engine file and that is all. Launch this second Engine file and then RADIOSS will continue the job after your stopping point.

2. You could also define the frequency restart files in your Engine file beforehand, so that you can later restart your job with any of your restart files.

e.g. Your model named TEST_0000.rad for Starter and TEST_0001.rad for Engine.

First, in your Engine file TEST_0001.rad you should define /RFILE/n. For example if you want to create a restart file for each 100 cycles, then you could do the following:

/RFILE/100

100 1 1

Then in your current fold, you may have the following restart file depending on your model:

TEST_0001_0001_I.rst

TEST_0001_0001_J.rst

TEST_0001_0001_K.rst

TEST_0001_0001_L.rst

TEST_0001_0001_M.rst

TEST_0001_0001_N.rst

…

Note: The file name always begins with Restart Letter=I. So, here it begins with TEST_0001_0001_I.rst.

Now to continue your job, the second Engine file TEST_0002.rad should be created. In this Engine file, you could just give the keyword /RUN/Run Name/Run Number/Restart Letter.

e.g.

/RUN/TEST_0001_0001_K/3/K

100

Now launch this second Engine file, then RADIOSS will continue the job after the point of TEST_0001_0001_K.rst.

Note: Here for Run Number we define:

TEST_0001_0001_I.rst   Run Number = 1

TEST_0001_0001_J.rst   Run Number = 2

TEST_0001_0001_K.rst   Run Number = 3

TEST_0001_0001_L.rst   Run Number = 4

TEST_0001_0001_M.rst   Run Number = 5

TEST_0001_0001_N.rst     Run Number = 6

 

for more information, please refer to FAQ in HyperWorks help documents