visual fortran runtime error

wolfgangtra · May 28, 2010, 12:19

hey,
An error message isreally troubling me. I am using ansys 12.1.
Whenever I start an structural transient simulation after several loadsteps this error message occures:

visual fortran runtime error

forrtl: severe (38): error during write, unit 70,

does anybody knows this problem?
some help would be great!!!!

thanks so far

Wolfgang

creas · May 30, 2010, 12:48

I face almost the same problem.
After some time steps i get the message:
Fortran Run Time Error
forrtl severe (47): write to readonly file, unit 53 C:\...destination....\file.DO3

The strange thing is that only sometimes i face this problem! Other times, the same exactly process will be done without problems.

I would be really grateful for your help,
Creas

wolfgangtra · June 14, 2010, 06:50

Hi,
I'm not completely sure if I got a solution to the problem, but after I increased my virtual memory to the recommended value, the error message never came up again.

A second possibility is to split the calculation into parts and restart the next part from the former one; e.g.: first part from LoadStep 1-10, second one from LS 11-20. You can find a manual to this process in the manual under "Restarting an analysis"

I hope that helps.
Let me know.

Cheers

creas · June 25, 2010, 14:13

Thanks for the reply.
Can you please tell me if this increase of the virtual memory is safe?
Should i change it back to the normal when i finish with my Ansys work or leave it like this?

Thank you in advance

wolfgangtra · June 30, 2010, 08:00

sorry for the late answer... busy time!

I think it is safe. The virtual memory is nothing to bother about. Anyway... switch it to the recommendet value (1,5 or 2 times the RAM) and keep it like this.

oh... by the way... did the increasing help?

greets

creas · July 2, 2010, 09:53

sorry for my late answer too...

I didnt try it but i am sure that it will work.

I moved in a "Monster PC" so i made all my analysis there, thats why i didnt check the solution to my home "Tin Laptop'.

Thanks for everything

mani.valeo · July 23, 2010, 02:57

And one more we can do...

Please chk whrt users have full permissions on destination folder(Solution output).

Regards,

S.Mani

May 28, 2010, 12:19	visual fortran runtime error	#1
wolfgangtra New Member Join Date: May 2010 Posts: 3 Rep Power: 16	hey, An error message isreally troubling me. I am using ansys 12.1. Whenever I start an structural transient simulation after several loadsteps this error message occures: visual fortran runtime error forrtl: severe (38): error during write, unit 70, does anybody knows this problem? some help would be great!!!! thanks so far Wolfgang

July 23, 2010, 02:57	Try this	#7
mani.valeo New Member Manikandan Join Date: Jul 2010 Posts: 1 Rep Power: 0	And one more we can do... Please chk whrt users have full permissions on destination folder(Solution output). Regards, S.Mani

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May 30, 2010, 12:48		#2
creas New Member Creas Join Date: May 2010 Posts: 3 Rep Power: 16	I face almost the same problem. After some time steps i get the message: Fortran Run Time Error forrtl severe (47): write to readonly file, unit 53 C:\...destination....\file.DO3 The strange thing is that only sometimes i face this problem! Other times, the same exactly process will be done without problems. I would be really grateful for your help, Creas

June 14, 2010, 06:50		#3
wolfgangtra New Member Join Date: May 2010 Posts: 3 Rep Power: 16	Hi, I'm not completely sure if I got a solution to the problem, but after I increased my virtual memory to the recommended value, the error message never came up again. A second possibility is to split the calculation into parts and restart the next part from the former one; e.g.: first part from LoadStep 1-10, second one from LS 11-20. You can find a manual to this process in the manual under "Restarting an analysis" I hope that helps. Let me know. Cheers

June 25, 2010, 14:13		#4
creas New Member Creas Join Date: May 2010 Posts: 3 Rep Power: 16	Thanks for the reply. Can you please tell me if this increase of the virtual memory is safe? Should i change it back to the normal when i finish with my Ansys work or leave it like this? Thank you in advance

June 30, 2010, 08:00		#5
wolfgangtra New Member Join Date: May 2010 Posts: 3 Rep Power: 16	sorry for the late answer... busy time! I think it is safe. The virtual memory is nothing to bother about. Anyway... switch it to the recommendet value (1,5 or 2 times the RAM) and keep it like this. oh... by the way... did the increasing help? greets

July 2, 2010, 09:53		#6
creas New Member Creas Join Date: May 2010 Posts: 3 Rep Power: 16	sorry for my late answer too... I didnt try it but i am sure that it will work. I moved in a "Monster PC" so i made all my analysis there, thats why i didnt check the solution to my home "Tin Laptop'. Thanks for everything