Abaqus/en: Difference between revisions

Replace <code>port@server</code> with the port number and name of your Abaqus license server. Your license server must be reachable by our compute nodes, so your firewall will need to be configured appropriately. This usually requires our technical team to get in touch with the technical people managing your license software. Please contact our [[Technical support|technical support]] and we will provide a list of IP addresses used by our clusters and obtain the information we need on the port and IP address of your server.

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   |contents=

#!/bin/bash

   

module load abaqus/6.14.1      # (or abaqus/2020)

export MPI_IC_ORDER='tcp'

}}

= Site specific usage =

Sharcnet provides a small but free license consisting of 2cae and 21 execute tokens where usage limits are imposed 10 tokens/user and 15 tokens/group.  For groups that have purchased tokens, the free token usage limits are added to their reservation.  The free tokens are available on a first come first serve basis and mainly intended for testing and light usage before deciding whether or not to purchase dedicated tokens.  The license can be used by any Compute Canada member but only on SHARCNET hardware.  Groups that purchase dedicated tokens to run on the SHARCNET license server may likewise only use them on SHARCNET hardware.  Such hardware includes gra-vdi for running abaqus in full graphical mode and graham cluster for submitting compute batch jobs to the queue.  Before you can use the license you must open ticket at <support@computecanada.ca> and request access.  In your email 1) mention that it is for use on Sharcnet systems and 2) include a copy/paste of the following <tt>License Agreement</tt> statement with your full name and Compute Canada username entered in the indicated locations.  Please note that every user must do this ie) cannot be done one time only for a group (including PIs who have purchased their own dedicated tokens).

<pre>----------------------------------------------------------------------------------

-----------------------------------------------------------------------------------</pre>

The configuration of your abaqus license on each cluster depends on the module version being used:<br>

If your abaqus jobs fail with error message [*** ABAQUS/eliT_CheckLicense rank 0 terminated by signal 11 (Segmentation fault)] in the slurm output file verify your <code>abaqus.lic</code> file contains ABAQUSLM_LICENSE_FILE to use abaqus/2020.  If your abaqus jobs fail with error message starting [License server machine is down or not responding etc] in the output file verify your <code>abaqus.lic</code> file contains LM_LICENSE_FILE to use abaqus/6.14.1 as shown.

To query the sharcnet license server for started jobs, queued jobs, and reservations by purchasing groups run:

When <i>abaqus licensing lmstat</i> shows your job is "queued" this means it has entered the "R"unning state from the perspective of either the <code>squeue -j jobid</code> or <code>sacct -j jobid</code> commands but is waiting for a license (not started) and therefore idle.  This will have the same impact on your account priority as if the job were consuming cputime and thus should be avoided.  When <i>abaqus licensing lmstat</i> indicates the job is in the "start" state then it has acquired the required abaqus tokens from the license and consuming cputime ...

To ensure optimal usage of both your Abaqus tokens and the Compute Canada resources its important to carefully specify the required memory and ncpus in your slurm script.  The values can be determined by submitting a few short test jobs to the queue then checking their utilization.  For <b>completed</b> jobs use <code>seff JobNumber</code> to show the total "Memory Utilized" and "Memory Efficiency"; If the "Memory Efficiency" is less than ~90% decrease the value of "#SBATCH --mem=" setting in your slurm script accordingly.  Notice that the <code>seff JobNumber</code> command also shows the total "CPU (time) Utilized" and "CPU Efficiency"; If the "CPU Efficiency" is less than ~90% perform scaling tests to determine the optimal number of cpu's for optimal performance and then update the value of then update the value of "#SBATCH --cpus-per-task=" in your slurm script.  For <b>running</b> jobs use the <code>srun --jobid=29821580 --pty top -d 5 -u $USER</code> command to watch the %CPU, %MEM and RES for each abaqus parent process on the compute node; The %CPU and %MEM columns display the percent usage relative to the total available on the node while the RES column shows the per process resident memory size (in human readable format for values over 1gb). Further information regarding howto [https://docs.computecanada.ca/wiki/Running_jobs#Monitoring_jobs Monitor Jobs] is available in the Compute Canada wiki.

<pre>

where TOKENS = floor[5 X CORES^0.422]

== Western license ==

The Western site license may only be used by Western researchers with hardware located on Western's campus such as the Dusky legacy cluster. Graham and gra-vdi are excluded since they are located at Waterloo (use the Sharcnet License for these systems as described above).  Contact the Western abaqus license server administrator (located in Robarts) to make arrangements before attempting to use the Western abaqus license.  Submit a ticket to Compute Canada support to request the admins contact information if necessary.  You will need to provide your Compute Canada username and likely make arrangements to purchase tokens.  If you are granted access request the port and server values and enter them into your abaqus.lic file as shown in 1) near the top of this wiki which will in turn be used by the Compute Canada module on dusky when it loads.