Thread Subject: multiple instances of MATLAB

Hi there,

I require to run 4 instances of matlab to communicate with 4 different devices. I can do this by creating multiple COM servers using the actxerver function. However I do not know how to get each matlab server to run its own m-file(s). Any advice/help on this would be great.

Cheers

Irvin

On Jun 22, 4:37 pm, "Irvin " <ie...@student.canterbury.ac.nz> wrote:
> Hi there,
>
> I require to run 4 instances of matlab to communicate with 4 different devices. I can do this by creating multiple COM servers using the actxerver function. However I do not know how to get each matlab server to run its own m-file(s).  Any advice/help on this would be great.
>
> Cheers
>
> Irvin

AFAIK, you can just open a new Matlab and it will work OK and
independent of the other open Matlabs.
I've done it inadvertently and had no trouble.

TideMan <mulgor@gmail.com> wrote in message <e57f029e-3bae-44e2-bea8-34769e903ae3@f38g2000pra.googlegroups.com>...
> On Jun 22, 4:37?pm, "Irvin " <ie...@student.canterbury.ac.nz> wrote:
> > Hi there,
> >
> > I require to run 4 instances of matlab to communicate with 4 different devices. I can do this by creating multiple COM servers using the actxerver function. However I do not know how to get each matlab server to run its own m-file(s). ?Any advice/help on this would be great.
> >
> > Cheers
> >
> > Irvin
>
> AFAIK, you can just open a new Matlab and it will work OK and
> independent of the other open Matlabs.
> I've done it inadvertently and had no trouble.

I used to be able to run multiple instances of Matlab by just clicking on the start Matlab icon. Since getting 2009a this just returns me to the currently running window. Any idea why this changed or if I have got a setting wrong? Thanks.

"Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message <h7l145$mj5$1@fred.mathworks.com>...
> TideMan <mulgor@gmail.com> wrote in message <e57f029e-3bae-44e2-bea8-34769e903ae3@f38g2000pra.googlegroups.com>...
> > On Jun 22, 4:37?pm, "Irvin " <ie...@student.canterbury.ac.nz> wrote:
> > > Hi there,
> > >
> > > I require to run 4 instances of matlab to communicate with 4 different devices. I can do this by creating multiple COM servers using the actxerver function. However I do not know how to get each matlab server to run its own m-file(s). ?Any advice/help on this would be great.
> > >
> > > Cheers
> > >
> > > Irvin
> >
> > AFAIK, you can just open a new Matlab and it will work OK and
> > independent of the other open Matlabs.
> > I've done it inadvertently and had no trouble.
>
> I used to be able to run multiple instances of Matlab by just clicking on the start Matlab icon. Since getting 2009a this just returns me to the currently running window. Any idea why this changed or if I have got a setting wrong? Thanks.

You still can. When i clock on my MATLAB 2009a shortcut it opens a new instance each time.

However, one thing that WAS changed in a recent release was that double clicking a .fig, .mat or .m file would open that file up in any existing instance of MATLAB.

Maybe check your MATLAB shortcut, ensure that it is indeed a shortcut pointing ot something like:
"C:\Program Files\MATLAB\R2009a\bin\matlab.exe"

"Rodney Thomson" <readmore@iheartmatlab.blogspot.com> wrote in message <h7l20a$iht$1@fred.mathworks.com>...
> "Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message <h7l145$mj5$1@fred.mathworks.com>...
> > TideMan <mulgor@gmail.com> wrote in message <e57f029e-3bae-44e2-bea8-34769e903ae3@f38g2000pra.googlegroups.com>...
> > > On Jun 22, 4:37?pm, "Irvin " <ie...@student.canterbury.ac.nz> wrote:
> > > > Hi there,
> > > >
> > > > I require to run 4 instances of matlab to communicate with 4 different devices. I can do this by creating multiple COM servers using the actxerver function. However I do not know how to get each matlab server to run its own m-file(s). ?Any advice/help on this would be great.
> > > >
> > > > Cheers
> > > >
> > > > Irvin
> > >
> > > AFAIK, you can just open a new Matlab and it will work OK and
> > > independent of the other open Matlabs.
> > > I've done it inadvertently and had no trouble.
> >
> > I used to be able to run multiple instances of Matlab by just clicking on the start Matlab icon. Since getting 2009a this just returns me to the currently running window. Any idea why this changed or if I have got a setting wrong? Thanks.
>
> You still can. When i clock on my MATLAB 2009a shortcut it opens a new instance each time.
>
> However, one thing that WAS changed in a recent release was that double clicking a .fig, .mat or .m file would open that file up in any existing instance of MATLAB.
>
> Maybe check your MATLAB shortcut, ensure that it is indeed a shortcut pointing ot something like:
> "C:\Program Files\MATLAB\R2009a\bin\matlab.exe"

Thanks. I was running to startMATLB (under contents) rather than MATLAB (under bin). startMATLAB was fine for 2007 and 2008 but not for 2009a.

"Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message
news:h7l4mi$7k3$1@fred.mathworks.com...
> "Rodney Thomson" <readmore@iheartmatlab.blogspot.com> wrote in message
> <h7l20a$iht$1@fred.mathworks.com>...
>> "Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message
>> <h7l145$mj5$1@fred.mathworks.com>...

*snip*

>> You still can. When i clock on my MATLAB 2009a shortcut it opens a new
>> instance each time.
>>
>> However, one thing that WAS changed in a recent release was that double
>> clicking a .fig, .mat or .m file would open that file up in any existing
>> instance of MATLAB.
>>
>> Maybe check your MATLAB shortcut, ensure that it is indeed a shortcut
>> pointing ot something like:
>> "C:\Program Files\MATLAB\R2009a\bin\matlab.exe"
>
> Thanks. I was running to startMATLB (under contents) rather than MATLAB
> (under bin). startMATLAB was fine for 2007 and 2008 but not for 2009a.

Since your reply suggests you're using MATLAB on Mac OS X, take a look at
this document:

http://www.mathworks.com/support/solutions/en/data/1-8G0VT7/?solution=1-8G0VT7

I believe this is related to this change described in the Release Notes for
release R2008b:

http://www.mathworks.com/access/helpdesk/help/techdoc/rn/bropbi9-1.html#brpqeu0-1

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ

With R2009b it seems to be impossible to run multiple instances: also clicking on the app in the package won't work. Any solution?
Thanks,
Cesare

"Steven Lord" <slord@mathworks.com> wrote in message <h7ltiu$64r$1@fred.mathworks.com>...
>
> "Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message
> news:h7l4mi$7k3$1@fred.mathworks.com...
> > "Rodney Thomson" <readmore@iheartmatlab.blogspot.com> wrote in message
> > <h7l20a$iht$1@fred.mathworks.com>...
> >> "Russell Brinkworth" <randrhome@iprimus.com.au> wrote in message
> >> <h7l145$mj5$1@fred.mathworks.com>...
>
> *snip*
>
> >> You still can. When i clock on my MATLAB 2009a shortcut it opens a new
> >> instance each time.
> >>
> >> However, one thing that WAS changed in a recent release was that double
> >> clicking a .fig, .mat or .m file would open that file up in any existing
> >> instance of MATLAB.
> >>
> >> Maybe check your MATLAB shortcut, ensure that it is indeed a shortcut
> >> pointing ot something like:
> >> "C:\Program Files\MATLAB\R2009a\bin\matlab.exe"
> >
> > Thanks. I was running to startMATLB (under contents) rather than MATLAB
> > (under bin). startMATLAB was fine for 2007 and 2008 but not for 2009a.
>
> Since your reply suggests you're using MATLAB on Mac OS X, take a look at
> this document:
>
> http://www.mathworks.com/support/solutions/en/data/1-8G0VT7/?solution=1-8G0VT7
>
> I believe this is related to this change described in the Release Notes for
> release R2008b:
>
> http://www.mathworks.com/access/helpdesk/help/techdoc/rn/bropbi9-1.html#brpqeu0-1
>
> --
> Steve Lord
> slord@mathworks.com
> comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
>