[Info-vax] What does VMS get used for, these days?

Arne Vajhøj arne at vajhoej.dk
Sun Nov 6 13:50:20 EST 2022


On 11/6/2022 12:23 AM, Dave Froble wrote:
> On 11/5/2022 8:42 PM, Arne Vajhøj wrote:
>> On 11/5/2022 8:25 PM, Robert Carleton wrote:
>>> I work in an environment where there's lots of scientific computing
>>> on the Linux platform. One of the things about it, is that getting
>>> compute time is very competitive, and our users/coders game the batch
>>> systems to gain an advantage in getting their jobs to run. We can't
>>> use the stock Linux batch systems (at, batch, atd, cron, and friends)
>>> for that work, though the system administrators probably use those
>>> for some of what they do. We have to use add-on batch systems for
>>> controlling those jobs.
>>>
>>> I'm not familiar with the VMS batch facilities yet (I'm a Linux/BSD
>>> jockey), but I've heard that they are pretty advanced. Perhaps that
>>> would provide an advantage, at least when there is a lot of
>>> competition for compute resources.
>>
>> VMS batch queues are pretty good. You setup the queues with
>> priority, task limit, CPU limit, memory limit etc.. Good cluster
>> support. The only thing I don't like is the defaults for
>> the log file - and that is a minor inconvenience.
> 
> Not sure what you dislike about batch log files ...
> 
> SUBMIT
> 
>    /LOG_FILE
> 
>          /LOG_FILE[=filespec]
>          /NOLOG_FILE
> 
>       Names the log file. The asterisk (*)  and the percent sign (%)
>       wildcard characters are not allowed in the file specification.
> 
>       When you use the /LOG_FILE qualifier, the system writes the batch
>       job's output to the file you specify. If you use the /NOLOG_FILE
>       qualifier, no log file is created. By default, a log file is
>       created, is written to the directory defined by the logical name
>       SYS$LOGIN in the UAF, and is given the batch job's name as its
>       file name with a file type of LOG. By default, a log file also is
>       given the batch job's name as its file name with a file type of
>       LOG.
> 
> Seems to cover a lot.

I dislike the default location. I would very much prefer
them to go to either dir with com file or current dir when
submitting instead of sys$login.

And I dislike that /PRINT is default.

Arne






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