Running Fluent in the Background
I was wondering if anybody could tell me how to run fluent which is installed on a linux/unix machine in the background. From what I gather on the internet, the command nohup can be used. But you need an input file and output file.
The simulation is 3ddp and I have prepared the *.cas file for it. I know the number of interations is requires. Please assist:) Thanks |
in a shell:
> fluent 3ddp -g ****** From the help: ****** Usage: fluent [version] [-help] [options] options: -cl following argument passed to fluent, -checknetwork check the network connections before spawning compute nodes, -cxarg following argument passed to cortex, -cx host:p1:p2 connect to the specified cortex process, -driver [ opengl | x11 | null ], sets the graphics driver (available drivers vary by platform), -env show environment variables, -g run without gui or graphics, -gr run without graphics, -gu run without gui, -hcl following argument passed to fluent host, -help this listing, -i journal read the specified journal file, -loadx load mpp from host x, -lsf run fluent under LSF, -manspa manually spawn compute nodes, -n no execute, -ncl following argument passed to fluent node, -nocheck disable checks for valid license file and server, -pathx specify root path x to Fluent.Inc, -post run a post-processing-only executable, -project x write project x start and end times to license log, -px specify communicator x, -r list all releases, -rx specify release x, -sge run fluent under Sun Grid Engine, -sgeq queue name of queue for a given computing grid, -sgeckpt ckpt_obj, set Checkpointing object to ckpt_obj for SGE, -sgepe fluent_pe min_n-max_n, set parallel environment for SGE to fluent_pe, min_n and max_n are number of min and max nodes requested, -v list all versions, -vx specify version x, -tx specify number of processors x, -cnf=x specify the host file |
Thanks again mAx:)
But I want to start the procedure and logout. The problem is my university uses a SSH connection to the remote computer with Putty. But i want to start the process, let it run in the evening, LOG OUT and have the results in the morning. Now I need to be logged in. the command is nohup. I am sure. But I dont know how to use it. Any ideas are greatly appreciated. |
no idea, but maybe it can help you:
http://www.cfd-online.com/Forums/ope...ce-n-19-a.html |
I'm relatively new to Linux myself, but there is a way to "detach" from an ssh session, and then "reattach" latter. (I'm not sure if that's the correct terminology.) Something like this:
http://www.linux-tutorial.info/modul...rticle&sid=977 |
Yes, it is, here is an example:
nohup fluent 2ddp -g -t4 -ssh -cnf=hostlist -i args.txt & The above will launch Fluent on 4 machines (ip list in "hostlist") and it will execute the commands found in args.txt Do |
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