Learning Forum

[Saeid Alamdar]

Hello,

I am trying to run HFSS using the Remote License Manager on a server at the University of California, Irvine (UCI). However, I encounter some errors and cannot run the simulations on the remote server. I suspect it's a license problem. I was wondering if the license that you kindly provide to universities includes the RMS feature or not.

Best regards,

Saeid

[randyk]

Hi Saeid,

I see you are able to resolve the IP for server hostname and ICMP traffic is allowed.
The error you are referencing indicates either AnsoftRSMService is not installed, not running, or firewalls blocking the TCP port 32958.

Before proceeding:
1. Are you attempting to submit to a Linux scheduler environment? (SLURM, UGE, PBS, LSF)?
2. Are you attempting to solve on multiple stand-alone computers?
3. What is the OS of your client? 
4. What is the OS of the remote solving machine(s)?
5. Do you have access to the remote solving machine?

thanks
Randy 

[MangeshANSYS]

Hello , If you are using a scheduler like slurm etc, follow the earlier post from Randy

If you are not using a scheduler then the below applies, otherwise ignore the below please

1. have Ansoftrsmservice engine up and running 
   see RSM on
   page number 3-4 to page number 3-11 for windows guide https://support.ansys.com/Components/DownloadFile?file=/Secure/DownloadAssets/2024R1/AnsysEMInstallGuide-Windows.pdf
   of page 3-7 to page 3-8  to page for linux https://support.ansys.com/Components/DownloadFile?file=/Secure/DownloadAssets/2024R1/AnsysEMInstallGuide-Linux.pdf#page=21
2. also register engines with ansoftrsmservice per steps 
   on page number 3-11 in windows guide
   on page number 3-10 for linux guide above
3. also ensure firewalls are not blocking port 32958 
   chck with firewall administrator. for linux ephemeral port range may also need to be opened
   
   

[Saeid Alamdar]

Hello Randy and Mangesh,

I followed the steps in the user guide. My computer and the server OS are both Windows. I have access to the remote computer and I am not using a scheduler environment (SLURM, UGE, PBS, LSF). I just want to use RSM to run the simulation on the remote computer. I used the Test machine in HPC option, the test is successful now but I still cannot use the RSM. Please see the attached screen images.

I see a license error showing my hostname, but I have a license to run the simulation on both the local and remote server. I was wondering how I can solve this error.

Thank you,

Saeid

 

[Saeid Alamdar]

Also I turned off my firewall, so it should cause the problem.

[MangeshANSYS]

is thwere a firewall running on the remote machine ? if yes, then does it work if the firewall on the remote machine is dsabled

[randyk]

Hi Saeid,

Make sure each involved computer can resolve the IP of the other involved computers.
ex:  'ping saeid_surface' from desktop-njrebou   should respond successfully. 

Your screenshot shows 2 solver engines running. 
That is one limitation with AnsoftRSMService, it has no scheduling capabilities and all jobs are run simultaniously.  
This could result in resource contention / solver failures.
Consider a 3rd party scheduler to avoid this situation.

Another item with Ansoftrsmservice, the solvers will run as the owner of the RSM service
-- Ansoftrsmservice is usually run as 'Local Service' user
-- To run solvers as a specified user, you would set the user/pass/domain in:  AEDT: Tools->Options->General Options->Remote Analysis (tab)

[Saeid Alamdar]

Thank you for helping me, now I can use RSM. But I have another problem, it seems I can only use 4 cores when using RSM, is it because of our license at the UCI?

[randyk]

Hi Saeid,

Great news, glad to see progress.

Please open a CMD and run these two bolded commands:

type "C:\Program Files\AnsysEM\Shared Files\Licensing\ansyslmd.ini"

-- take the port@server from the output of previous and correct the highlighted in this command
"C:\Program Files\AnsysEM\v232\Win64\licensingclient\winx64\lmutil.exe" lmstat -i -c 1055@LicenseServerName  | findstr "anshpc"

You will see either "anshpc"  or "anshpc_pack"  referenced -- based on your prior test, I'm assuming "anshpc_pack"
In AEDT's HPC and Analysis Options menu -- select "options" tab
-- Change the HPC License type to Pack  (if you have anshpc_pack  licensing)
-- Change the HPC License type to Pool  (if you have anshpc  licensing)

[Saeid Alamdar]

Hi Randy,

I can run my simulation through RSM with less than 4 cores and it works.

, but when I increase the number of cores to more than 4 (e.g 20), I get this error message.

[randyk]

Hi Saeid,
I don't see the error message.  Please copy/paste the text from the error.
Also, I don't recall the output from the lmutil test.

thanks

Randy

[Sarah John]

It has been the best decision for me to use my academic license to get my cheap dissertation. My scholastic experience has been much easier due to the constant information, software, and tools that are available. Besides, it is a perfect way to cut expenses, especially while working on something like my dissertation. 

[Sarah John]

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