topic Re: Running jobs, which use massive RAM in Operating System - OpenVMS

Running jobs, which use massive RAM

Jansen_8 — Fri, 16 Sep 2016 10:59:06 GMT

Hi all,

I try to run a job that is supposed to use several Gb's RAM. When Running I get the following:

<CTRL-T>
GIGUE::_RTA3: 11:12:38 xxxx CPU=00:45:30.25 PF=1457571 IO=2018 MEM=148096
%DEBUGBOOT-W-EXPGFLQUOTA, exceeded pagefile quota
<CTRL-T>
GIGUE::_RTA3: 11:29:47 xxxx CPU=01:02:41.34 PF=3598625 IO=2022 MEM=148094

It is a warning, so the job seems to continue running....

How can I avoid this warning?

I already set the Pgflquo: to 2147483632 (A higher value UAF does not accept.)

The Jobs quota is realy zero. (show proc/quot/id=xxxxx)

"Show mem" indicates that only 10% of the total of 56Gb RAM is used. Of the 2 pagefiles only 500 of each are not free.

Regards

Jouk

Re: Running jobs, which use massive RAM

abrsvc — Fri, 16 Sep 2016 12:34:01 GMT

The memory available to a process consists not only of pagefile usage but also the working set available. Look to see the values for WSDEF, WSQUO and WSEXTENT in the UAF record for the process. Also look at the value for WSMAX in SYSGEN.

These will define the total memory that the process CAN use if available. I suspect that the values for the items above are restricting the process memory usage.

Dan

Re: Running jobs, which use massive RAM

Jansen_8 — Mon, 19 Sep 2016 12:35:54 GMT

Thanks,

It was the WSMAX paraneter. Raising this one makes the program to be using the RAM instaed of exhausting the pagefilequota.

Regards

Jouk