Thread Subject: memory usage

Hi,

I am running my simulations now and the data I deal with are
relatively huge. I would like to know the total/maximum memory
required in running the code.
Is this possible? I run Matlab on Mac OS X 10.6.1

best, arun.

arun <aragorn168b@gmail.com> wrote in message <ad3190d5-6e0f-492e-adec-c65245b637b0@d34g2000vbm.googlegroups.com>...
> Hi,
>
> I am running my simulations now and the data I deal with are
> relatively huge. I would like to know the total/maximum memory
> required in running the code.
> Is this possible? I run Matlab on Mac OS X 10.6.1
>
> best, arun.

Use the profiler, with the memory option (which is undocumented for some unknown reason):

profile -memory on
% run your code
profreport

The profiler now returns memory usage statistics. Note that the memory option has an impact on your execution speed.

Sebastiaan

On Sep 23, 11:35 pm, "Sebastiaan "
<s.breedv...@erasmusmc.REMOVE.BOO.BOO.nl> wrote:
> arun <aragorn1...@gmail.com> wrote in message <ad3190d5-6e0f-492e-adec-c65245b63...@d34g2000vbm.googlegroups.com>...
> > Hi,
>
> > I am running my simulations now and the data I deal with are
> > relatively huge. I would like to know the total/maximum memory
> > required in running the code.
> > Is this possible? I run Matlab on Mac OS X 10.6.1
>
> > best, arun.
>
> Use the profiler, with the memory option (which is undocumented for some unknown reason):
>
> profile -memory on
> % run your code
> profreport
>
> The profiler now returns memory usage statistics. Note that the memory option has an impact on your execution speed.
>
> Sebastiaan

Hi Sebastiaan,

thank you once again for your reply.
In that case, i will have to check twice, once with the *memory on* to
check for the space-requirement and second time without to check the
time elapsed, i guess.

best, arun.

> Hi Sebastiaan,
>
> thank you once again for your reply.
> In that case, i will have to check twice, once with the *memory on* to
> check for the space-requirement and second time without to check the
> time elapsed, i guess.
>
I "guess" (I have never really measured it) that the profiler will still make the code run slower, even with memory off.

If you want to measure your runtimes accurately, use the clock/tic-toc:
T1 = clock;
  % run piece of code
  T2 = clock;
    % run another piece of code
  T2=etime(clock, T2);
T1 = etime(clock, T1);
fprintf('Piece of code took %f seconds and another piece of code took %f seconds.\n', T1, T2);

Can we take the result matlab gui
pls someone help
for example we execute function with gui then how much is it use memoty can we take this 'text' to gui?

"ali " <rebelfirst@gmail.com> wrote in message <hke6up$38n$1@fred.mathworks.com>...
> Can we take the result matlab gui
> pls someone help
> for example we execute function with gui then how much is it use memoty can we take this 'text' to gui?

At least with 2009b you can do this:

profile on
....
profile off
a = profview;

a gives you a HTML string. You can also view it by function. Or save it to disk with profsave.

Sebastiaan

thanks attention Sebastian but ı cant use it
a=profview
then ı have to write save a?

if your answer yes
then
how can ı take allocated memory value to matlab gui text?

"ali " <rebelfirst@gmail.com> wrote in message <hkergv$eje$1@fred.mathworks.com>...
> thanks attention Sebastian but ı cant use it
> a=profview
> then ı have to write save a?
>
> if your answer yes
> then
> how can ı take allocated memory value to matlab gui text?
Depends on what you want: profview returns a one-line HTML string, with the makeup that you see in the gui. You need to parse the HTML string to extract the data you need. However, that is beyond my ability too.

You may try to parse it to an xml parser (see xml_io_tools for example at the file exchange), so it results a structure.