error writing during calculation

KLA · February 20, 2020, 10:56

Hi all,

I have a problem when launching simulation on ansys fluent. I use transiant, K-omega SST. When I launch simulation I get this error:

Error: Error writing "| gzip -2cf > SYS-1-00000.dat.gz".
Error Object: #f

any suggestions as to why this is happening ? Thanks in advance !

LuckyTran · February 20, 2020, 11:27

Could be unable to access dir or no write permissions

Could be the gnuzip bug on Windows 10.

Try not using .gz

vinerm · February 20, 2020, 11:33

Fluent gives this error if there is not enough RAM to compress the file. Try writing as unzipped, i.e., without .gz. If it still doesn't write, then there is something wrong with the setup or initialization.

KLA · February 20, 2020, 15:12

thank you vinerm and lucktran for your answer.
May I please ask for further information about how to do so ?

Thank you again

vinerm · February 20, 2020, 15:22

Fluent writes files as per the extension provided by the user. If you provide extension as .cas.gz or .dat.gz then it tries to zip the file. If the extension is given as .cas or .dat then the file is written in unzipped form.

February 20, 2020, 10:56	error writing during calculation	#1
KLA New Member Join Date: Feb 2020 Posts: 10 Rep Power: 6	Hi all, I have a problem when launching simulation on ansys fluent. I use transiant, K-omega SST. When I launch simulation I get this error: Error: Error writing "\| gzip -2cf > SYS-1-00000.dat.gz". Error Object: #f any suggestions as to why this is happening ? Thanks in advance !

February 20, 2020, 11:27		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 66	Could be unable to access dir or no write permissions Could be the gnuzip bug on Windows 10. Try not using .gz KLA likes this.

February 20, 2020, 11:33	Or RAM	#3
vinerm Senior Member Vinerm Join Date: Jun 2009 Location: Nederland Posts: 2,946 Blog Entries: 1 Rep Power: 35	Fluent gives this error if there is not enough RAM to compress the file. Try writing as unzipped, i.e., without .gz. If it still doesn't write, then there is something wrong with the setup or initialization. KLA likes this. __________________ Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority.

February 20, 2020, 15:22	Extension	#5
vinerm Senior Member Vinerm Join Date: Jun 2009 Location: Nederland Posts: 2,946 Blog Entries: 1 Rep Power: 35	Fluent writes files as per the extension provided by the user. If you provide extension as .cas.gz or .dat.gz then it tries to zip the file. If the extension is given as .cas or .dat then the file is written in unzipped form. __________________ Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority.

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February 20, 2020, 15:12		#4
KLA New Member Join Date: Feb 2020 Posts: 10 Rep Power: 6	thank you vinerm and lucktran for your answer. May I please ask for further information about how to do so ? Thank you again