How do I do multiple restarts is ABAQUS ?

Prithivirajan Veerappan @Prithivirajan_Veerappan

03 March 2019 5 839 Report

Hello All,

I have been trying to restart an ABAQUS simulation using the command line. The following works fine

########

abaqus job=restart1.inp oldjob=OLD user=UMAT.f cpus=160 scratch=$PWD interactive

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But when I do the restart for the second time like the following, It gives me an error

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abaqus job=restart2.inp oldjob=restart1 user=UMAT.f cpus=160 scratch=$PWD interactive

########

Error :

****************************

Abaqus Error: The executable pre

aborted with system error "Abnormal termination signal" (signal 6).

Please check the .dat, .msg, and .sta files for error messages if the files

exist. If there are no error messages and you cannot resolve the problem,

please run the command "abaqus job=support information=support" to report and

save your system information. Use the same command to run Abaqus that you

used when the problem occurred. Please contact your local Abaqus support

office and send them the input file, the file support.log which you just

created, the executable name, and the error code.

Abaqus/Analysis exited with errors

****************************

Any help would be highly appreciated.

-Prithivi

Prithivirajan Veerappan

Abhimanyu Kumar Thanks for the reply.

I have attached the .inp & dat file ( stopped before reading anything) but the msg file wasn't generated

1. OLD.odb contains 1 to 10 iterations (Step-1)

2. restart1.odb contains from 11-20 iterations (Step-1)

Jens Winter

Just to be clear: You also used *RESTART, WRITE in restart1.inp and the necessary files of the job are available in the directory (*.res, *.mdl, *.stt, *.prt, *.odb and *.sim)?

Also, would it be possible to run restart2.inp with oldjob=OLD, just to check if the problem lies in the input or in the restart definition?

Abnormal termination signal 6 errors are very common and are caused by various reasons like division by zero, square root of a negative number etc. I would assume the error is somehow caused by UMAT.

Jens Winter , Yes I have all the files.

I ran " restart2.inp with oldjob=OLD ", it worked , but it starts from iteration 10.

I would like to give some details :

OLD.odb got killed at iteration 14 ( Step-1, restart information written at iteration 10 )

restart1 started from iteration 11 and got killed at iteration 26 ( restart information written at iteration 20 )

Now, I am attempting to start from iteration 20 (step-1), that's where I have been failing

restart2.inp is same as restart1.inp and i have attached the file for your reference

Any suggestions would be highly appreciated.

What do you mean by "got killed"? Didn't the simulation successfully ended? What is the reason for the abortion?

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