ANSYS CFX is a high-performance computational fluid dynamics (CFD) software tool that delivers reliable and accurate solutions quickly and robustly across a wide range of CFD and multi-physics applications. - Homepage: http://www.ansys.com/Products/Fluids/ANSYS-CFX
ANSYS CFX is open to all HPRC users when used within the terms of our ANSYS license agreement.
IMPORTANT NOTE REGARDING THE ANSYS LICENSE:
Terms of the ANSYS Academic license require that all users be within 50 miles of the TAMU main campus in College Station, TX. Use of this software outside the designated area represents a breach of the license and any users caught doing so may be subject to account suspension and/or other action.
If you have particular concerns about whether specific usage falls within the TAMU HPRC license, please send an email to the HPRC Helpdesk. Usage of ANSYS CFX is restricted by the number of available tokens. To see the number of available tokens, use the License Checker Tool.
Loading the Module
To see all versions of ANSYS available on Ada:
module spider ANSYS
To load the default ANSYS module on Ada:
module load ANSYS
To load a particular version of ANSYS on Ada (Example: 17.1):
module load ANSYS/17.1
Usage on the Login Nodes
Please limit interactive processing to short, non-intensive usage. Use non-interactive batch jobs for resource-intensive and/or multiple-core processing. Users are requested to be responsible and courteous to other users when using software on the login nodes.
The most important processing limits here are:
- ONE HOUR of PROCESSING TIME per login session.
- EIGHT CORES per login session on the same node or (cumulatively) across all login nodes.
Anyone found violating the processing limits will have their processes killed without warning. Repeated violation of these limits will result in account suspension.
Note: Your login session will disconnect after one hour of inactivity.
Usage on the Compute Nodes
Non-interactive batch jobs on the compute nodes allows for resource-demanding processing. Non-interactive jobs have higher limits on the number of cores, amount of memory, and runtime length.
For instructions on how to create and submit a batch job, please see the appropriate wiki page for each respective cluster:
#BSUB -J CFXJob1 # sets the job name to CFXJob1. #BSUB -L /bin/bash # uses the bash login shell to initialize the job's execution environment. #BSUB -W 5:00 # sets to 5 hours the job's runtime wall-clock limit. #BSUB -n 1 # assigns 1 core for execution. #BSUB -R "span[ptile=1]" # assigns 1 core per node. #BSUB -R "rusage[mem=5000]" # reserves 5000MB per process/CPU for the job (5GB * 2 Cores = 10GB per node) #BSUB -M 5000 # sets to 5,000MB (~5GB) the per process enforceable memory limit. #BSUB -o stdout1.%J # directs the job's standard output to stdout1.jobid ##Load the necessary modules module load ANSYS/17.1 ## Launch the CFX Solver with proper parameters ## For multiple cores add (where XX is cores): -start-method "Intel MPI Local Parallel" -part XX cfx5solve -batch -def FileName.def
To submit the batch job, run:
bsub < jobscript
where jobscript would look like the example above.
TO BE ADDED LATER.
Usage on the VNC Nodes
The VNC nodes allow for usage of the a graphical user interface (GUI) without disrupting other users.
VNC jobs and GUI usage do come with restrictions. All VNC jobs are limited to a single node (Terra: 28 cores/64GB). There are fewer VNC nodes than comparable compute nodes.
For more information, including instructions, on using software on the VNC nodes, please visit our Terra Remote Visualization page.