Thread Subject:

Crashing every hour

I'm using Matlab in a lab. We're performing a large
calculation without recursion using simple matrices. The
problem we're having is that Matlab will crash every hour on
the hour while doing a calculation. We are running Windows
XP. Is this a memory issue? How can we stop this?

In article <ftgm1n$5tb$1@fred.mathworks.com>,
Chris Taylor <cmtaylor@colorado.edu> wrote:
>I'm using Matlab in a lab. We're performing a large
>calculation without recursion using simple matrices. The
>problem we're having is that Matlab will crash every hour on
>the hour while doing a calculation. We are running Windows
>XP. Is this a memory issue? How can we stop this?

Weird. Is it "after 60 minutes", or is it "as the system
clock rolls over to the new hour" ?

To check if it is a memory issue, you could start a plain
infinite loop and see whether the problem happened anyhow.


Something about this situation whispers to me that it -might-
be license checking that is involved. Are you running with
a network license server instead of license installed on
that particular machine? And if so, then is there a firewall
between you and the license server? If the answer to that is Yes,
then -possibly- the firewall is expiring the license server
connection, leading Matlab to fail when it next goes to check
the license. Just a hypothesis.

--
  "And believe me, I was very lousy yesterday.
   I had nothing to say, and, by God, I said it."
                                          -- Walter Wellesley Smith

On Apr 8, 9:54=A0pm, "Chris Taylor" <cmtay...@colorado.edu> wrote:
> I'm using Matlab in a lab. We're performing a large
> calculation without recursion using simple matrices. The
> problem we're having is that Matlab will crash every hour on
> the hour while doing a calculation. We are running Windows
> XP. Is this a memory issue? How can we stop this?

are you using any c-mex functions?