csh C script for automating the ocean simulation

Dear Aksh,

Aksh said:

After some searching, I found that the "load" command can be placed in a .oceanrc file. But I am not sure it will work and also I am not able to find its directory nor have any idea where to place it. 

I believe the default location for your .oceanrc command is your $HOME directory. Its contents will be executed when ocean is invoked from the UNIX command line. In my case, I want the same variables set as when I launch a Cadence session. Hence, the contents of my ~/.oceanrc file is:

"load("~/.cdsinit")"

However, if your objective is to load the file "test.ocn", if the file "test.ocn" is in the same directory from which you are starting ocean, is there a reason you did not use the command:

ocean -nograph < test.ocn > run_test.out

This will load the file "test.ocn" and writes the output to a new file "run_test.out" and assumes no plotting is requried (-nograph option).

An alternative command is included in the reference article:

https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000000nVZuEAM&pageName=ArticleContent

Does this help Aksh?

Shawn

Dear Aksh,

Aksh said:

After some searching, I found that the "load" command can be placed in a .oceanrc file. But I am not sure it will work and also I am not able to find its directory nor have any idea where to place it. 

I believe the default location for your .oceanrc command is your $HOME directory. Its contents will be executed when ocean is invoked from the UNIX command line. In my case, I want the same variables set as when I launch a Cadence session. Hence, the contents of my ~/.oceanrc file is:

"load("~/.cdsinit")"

However, if your objective is to load the file "test.ocn", if the file "test.ocn" is in the same directory from which you are starting ocean, is there a reason you did not use the command:

ocean -nograph < test.ocn > run_test.out

This will load the file "test.ocn" and writes the output to a new file "run_test.out" and assumes no plotting is requried (-nograph option).

An alternative command is included in the reference article:

https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000000nVZuEAM&pageName=ArticleContent

Does this help Aksh?

Shawn

I personally tend to recommend using "ocean -restore test.ocn" rather than redirecting the input. This has the benefit of becoming an interactive session at the end - if you don't want that, you can always finish your OCEAN script with an exit() call.

Regards,

Andrew.

Dear Andrew,

For my education, if I may, is your preference for using the "-restore" option based on the potential for an ocean buffer overflow? If you are busy, I fully understand and can bury my question!

Shawn

Partly that, but mostly due to the fact that the behaviour with non-blocking elements can be different, and also that you don't get a return value per input line appearing in the output log. Using -restore is exactly like running virtuoso and then doing load() afterwards, whereas redirecting the input is just like typing everything in at the prompt.

Andrew

Will this work even in a csh script?

Dear Andrew,

Andrew Beckett said:

Partly that, but mostly due to the fact that the behaviour with non-blocking elements can be different, and also that you don't get a return value per input line appearing in the output log

Thank you for the added insight...and once again...your time and patience!

Shawn

I tried by placing the command the command: in the csh script
"ocean -restore test.ocn"

But all it does again is open the ocean command line and not loading the test.ocn file.

Dear Aksh,

Aksh said:

Will this work even in a csh script?

As long as you keep in mind that invoking "csh" opens a new shell...

Shawn

Dear Aksh,

Aksh said:

But all it does again is open the ocean command line and not loading the test.ocn file.

Did you try providing the full directory path to the file "test.ocn" as the argument to ocean? As I noted, csh will open a new shell.

Shawn

Maybe you have wrapper scripts in your environment (and so you're not invoking directly the "ocean" from an IC installation; typing "which ocean" will tell you that), and those wrapper scripts are not passing the arguments through?

The -restore option has been supported for as long as I can remember.

Andrew

Thanks for your insight Shawn and Andrew.

But I am a newbie to the world of cadence and csh scripting.

My basic question is: what can I can to make the script work? (either basically make the script readable after the ocean command or by doing something else)