[blockMesh] FOAM FATAL ERROR Cannot find file points in directory constantpolyMesh

evgenii · October 9, 2006, 10:24

Hi, all
I have a problem with blockMesh utility
I'm trying to generate simple 3D rectangular mesh with number of cells 500*500*500. If I try to generate mesh 50*50*50 everything works fine, but in this case following message appears:

new cannot satisfy memory request.
This does not necessarily mean you have run out of virtual memory.
It could be due to a stack violation caused by e.g. bad use of pointers or an out of date shared library
/opt/gcdistro/sge/hod/spool/node06/job_scripts/11156: line 5: 17421 Aborted blockMesh . box

--> FOAM FATAL ERROR : Cannot find file "points" in directory "constant/polyMesh"

From function Time::findInstance(const word& dir, const word& name)
in file db/Time/findInstance.C at line 133.

FOAM exiting
It seems that problem is the lack of memory for so large mesh.
How can I solve this problem?

Best regards,
Efimenko Evgeny

eugene · October 9, 2006, 11:10

Get a 64bit machine with a lot of memory.

125M cells =~ 50GB and thats without any fields.

amagda · October 9, 2006, 16:27

I think another option is to try to run in parallel, or try to split your problem in smaller parts if possible

adrian

October 9, 2006, 10:24	FOAM FATAL ERROR Cannot find file points in directory constantpolyMesh	#1
evgenii Member Efimenko Evgenii Join Date: Mar 2009 Location: Nizhnij Novgorod, Russia Posts: 52 Rep Power: 17	Hi, all I have a problem with blockMesh utility I'm trying to generate simple 3D rectangular mesh with number of cells 500500500. If I try to generate mesh 505050 everything works fine, but in this case following message appears: new cannot satisfy memory request. This does not necessarily mean you have run out of virtual memory. It could be due to a stack violation caused by e.g. bad use of pointers or an out of date shared library /opt/gcdistro/sge/hod/spool/node06/job_scripts/11156: line 5: 17421 Aborted blockMesh . box --> FOAM FATAL ERROR : Cannot find file "points" in directory "constant/polyMesh" From function Time::findInstance(const word& dir, const word& name) in file db/Time/findInstance.C at line 133. FOAM exiting It seems that problem is the lack of memory for so large mesh. How can I solve this problem? Best regards, Efimenko Evgeny

October 9, 2006, 11:10	Get a 64bit machine with a lot	#2
eugene Senior Member Eugene de Villiers Join Date: Mar 2009 Posts: 725 Rep Power: 21	Get a 64bit machine with a lot of memory. 125M cells =~ 50GB and thats without any fields.

October 9, 2006, 16:27	I think another option is to t	#3
amagda New Member Adrian Magda Join Date: Mar 2009 Posts: 7 Rep Power: 17	I think another option is to try to run in parallel, or try to split your problem in smaller parts if possible adrian

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