XANSYS Message: 5255 [Go back to message list]
[bookmark on del.icio.us]
No rating yet
Rate item:

Subject: Re: ANSYS License Manager - core file
Author: Gordon May
Date: 1999-10-05 14:42:00

The link method to /dev/null gives broadly the same behaviour as creating a
zero-size core file with no write permission: both SHOULD cause an
"instantaneous" exit from ANSYS.

Regards,
Gordon May
Advanced Technologist - Stress
Compressor Key System
Tel.: 44041
Fax: 44874
e-mail: Gordon.May@r...

> From: Dan Bohlen[SMTP:dan.bohlen@a...]
> Sent: 05 October 1999 16:09
> To: xansys@o...
> Subject: Re: [xansys] ANSYS License Manager - core file

> From: Dan Bohlen

> I do John's method. The bit bucket option below will keep the file from
> filling up the disk, but the Ansys program will still take the time to
> write all the bits to the "bit-bucket". This soft link method could be
> useful if Ansys ever wrote a core file without promptly dying after
> writing it. (Like write the core file and then exit normally or be ready
> for the mext interactive command...) Does that ever happen?

> "May, Gordon" wrote:

> > From: "May, Gordon"

> > Another alternative is to place the line:

> > /sys,ln -s /dev/null core

> > in your start.ans file, which creates a link to the output "null device"
> and
> > has much the same effect.

> > Regards,
> > Gordon May
> > Advanced Technologist - Stress
> > Compressor Key System
> > Tel.: 44041
> > Fax: 44874
> > e-mail: Gordon.May@r...

> > > From: John Swanson[SMTP:John.Swanson@a...]
> > > Sent: 03 October 1999 22:14
> > > To: 'xansys@o...'
> > > Subject: RE: [xansys] ANSYS License Manager

> > > From: John Swanson

> > > I agree that the core file is of no use. I usually put a core file
> > > of zero length and read only permission in my working directory.
> > > With read only permission the system cannot write the core file,
> > > and so ends quickly.
> > > John Swanson

> > > > -----Original Message-----
> > > > From: Dave & Kathleen Johnson [SMTP:dandkj@p...]
> > > > Sent: Tuesday, September 28, 1999 7:02 PM
> > > > To: xansys@o...
> > > > Subject: Re: [xansys] ANSYS License Manager

> > > > From: Dave & Kathleen Johnson

> > > > Hi Tom,

> > > > I've never hit a down side to doing this. I am untrained in
> > > > debugging
> > > > an ANSYS crash from reading a core dump file, so its value to me is
> > > > zero. (In my understanding, the core file is a copy of what's in
> the
> > > > machine's memory at the time of the crash). Perhaps, someone at
> ANSYS
> > > > or your hardware vendor can interpret such a file, but as a regular
> > > > user
> > > > (I suspect that includes most of us), I just delete the core file
> and
> > > > start ANSYS again after a crash, and try it again !

> > > > If you have reservations, hold off a few days to see if any of the
> > > > experts shoot down my advice.

> > > > Dave Johnson
> > > > Penn State-Erie
> > > > Erie, PA, USA

> > > > Tom.Davis@f... wrote:

> > > > > From: Tom.Davis@f...

> > > > > Dave,

> > > > > This sounds like a good thing to do. However, before I implement
> > > > it, can
> > > > > you tell me what the downside is?

> > > > > Thanks.

> > > > > TWD

> > > > > Thomas W. Davis, P. E.
> > > > > FSI International (http://www.fsi-intl.com/)
> > > > > 322 Lake Hazeltine Drive
> > > > > Mail Station 4-1035
> > > > > Chaska, Minnesota 55318
> > > > > PHONE 612-361-7359, FAX 612-361-7393
> > > > > tom.davis@f...

> > > > > From: Dave & Kathleen Johnson

> > > > > For years, I have used the line:

> > > > > limit coredumpsize 0

> > > > > in my .cshrc file on Unix machines. (This resrticts the size
> of
> > > > a
> > > > > 'core' file to 0 bytes and allows a crash finish quickly)

> > > > > Dave Johnson
> > > > > Penn State - Erie
> > > > > Erie, PA, USA

> > > > Greetings

> Dan Bohlen Phone: (513) 243-4645 / Dial Comm [8*332-4645]
> Stress Analyst Email: dan.bohlen@a... M/D K-105
> GE Aircraft Engines Fax: (513) 243-4888 or 243-4886

Posts possibly associated with message #5255AuthorDateScore
5253Re: ANSYS License Manager - core fileDan Bohlen1999/10/05 
5255Re: ANSYS License Manager - core fileGordon May1999/10/05 
5283Re: ANSYS License Manager - core fileJohn Swanson1999/10/06 
5288Re: ANSYS License Manager - core fileThomas Kipf1999/10/07