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Forum: Scilab Users' Group: Installing Scilab on a computer without access to the web
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11/10/2010 at 7:37:22 PM GMT
Posts: 9
  
Subject: Installing Scilab on a computer without access to the web
Hi all,

Not a mathematical question, but still: I'd like to install Scilab on a computer which does not have access to the internet, on windows platform. When installing Scilab on Windows from the binaries, access to the web is used to download certain mathematical libraries. Can these libraries be installed separately? And where can I find them?

I looked for this question on the forum and couldn't find it (or similar to it). If I was wrong, I will appreciate it if you can point me to the relevant topic. Thanks!
11/11/2010 at 7:47:06 PM GMT
Posts: 9
  
OK, I guess no one has the answer. Can anyone point me to another place where I can look for a solution? AFAIK Scilab do not maintain their own forum, they direct to this forum. Anywhere else I can try my luck?
Last edited on 11/11/2010 7:48:07 PM GMT
11/11/2010 at 9:50:32 PM GMT
Posts: 139
  
Hi Uri,

We have been researching this in conjunction with the Scilab developing team. Please be patient. We will get back to you as soon as possible.

Mizue
11/11/2010 at 2:23:18 AM GMT
Posts: 59
  

This might not be the best solutions, but at least it works for me.

During the Installation, when you come to a point of selecting type of installation, select "full installation".

After that, scroll down to the middle and you would find 2 categories :

1. CPU Optimization for Scilab

2. FFTW interface for Scilab

These are the 2 "math lib" you mentioned which required internet.

Choose the other option which do not started with "Download", such as the "Altas lib for scilab" for CPU Optimization, and "Reference FFTW lib" for FFTW interface, you should be able to run the scilab withouh any problem.

Some extra notes from my understanding.

1. Indeed if you were to use IPD toolbox for image processing, you should select the atlab lib.

2. FFTW options is for you to use the FFTW lib for performaing various transform, however, the standard fft, ffft2 already included in scilab.

Sorry if I made any mistake, good luck!

 

Regards,
CL

 
11/12/2010 at 11:21:09 AM GMT
Posts: 9
  
Mizue - thanks, I appreciate your efforts. I'll be happy to get instructions.

CL - Thanks for the answer. But if FFTW library does not have an added value over the standard Scilab libraries, why is it installed in the first place? I am using Scilab for DSP applications (among other things), so I prefer to have the "best" libraries (most accurate, optimized etc.). So I guess my question is: how can I get the same installation on a computer without internet access as if it had one?What exactly do I need to do?

Also, are there differences between the external libraries installed in Scilab 5.2.x and 5.3.x?

Thanks again for both of you.
11/15/2010 at 8:21:02 AM GMT
Posts: 9
  
Subject: RE:
M. Horiuchi said:
Hi Uri,

We have been researching this in conjunction with the Scilab developing team. Please be patient. We will get back to you as soon as possible.

Mizue

Hi Mizue, any news from the Scilab developing team?

Uri
11/15/2010 at 10:22:40 AM GMT
Posts: 464
  
Subject: RE:
U. Barkan said:
Mizue - thanks, I appreciate your efforts. I'll be happy to get instructions.

CL - Thanks for the answer. But if FFTW library does not have an added value over the standard Scilab libraries, why is it installed in the first place? I am using Scilab for DSP applications (among other things), so I prefer to have the "best" libraries (most accurate, optimized etc.). So I guess my question is: how can I get the same installation on a computer without internet access as if it had one?What exactly do I need to do?

Also, are there differences between the external libraries installed in Scilab 5.2.x and 5.3.x?

Thanks again for both of you.

Hi,

If you have no internet connexion, during setup unselect component "Download Intel Math Kernel Library" and "Download fftw MKL wrapper"
in this case, you will use ATLAS library and default FFTW library.

"Also, are there differences between the external libraries installed in Scilab 5.2.x and 5.3.x?"
 libraries used in 5.3.x and 5.2.2 have not same dependencies and MKL version updated
5.2.2 libraries do not work with 5.3 family


Allan CORNET
Scilab Team
11/16/2010 at 4:04:15 PM GMT
Posts: 9
  
Subject: RE:
A. CORNET said:
Hi,

If you have no internet connexion, during setup unselect component "Download Intel Math Kernel Library" and "Download fftw MKL wrapper"
in this case, you will use ATLAS library and default FFTW library.

...
Allan CORNET
Scilab Team

Hi Allan,

Thank you for the reply. I'll try to be more specific with my question: Is there a difference between the connected installation (MKL+FFTW) and the no-connection installation? If there isn't, I don't understand why the MKL and FFTW are downloaded during the connected installation. But if the connected installation is in some way better, I'd like to know how I can get this configuration without connection: what files should  download in advance, in what order should I install them , where, etc.

I did a little experiment: I installed Scilab on a computer with internet connection, and then copied the root and bin folders of Scilab to the computer without the connection. I'm surprised to say that up until now everything works fine, and when I'm running FFT I see Scilab accesses the FFTW library. Can this be a work-around, or am I talking nonsense?
Last edited on 11/16/2010 4:13:20 PM GMT
11/16/2010 at 4:13:13 PM GMT
Posts: 464
  
Subject: RE:
U. Barkan said:
Hi Allan,

Thank for the reply. I'll try to be more specific with my question: Is there a difference between the connected installation (MKL+FFTW) and the no-connection installation? If there isn't, I don't understand why the MKL and FFTW are downloaded during the connected installation. But if the connected installation is in some way better, I'd like to know how I can get this configuration without connection: what files should  download in advance, in what order should I install them , where, etc.

I did a little experiment: I installed Scilab on a computer with internet connection, and then copied the root and bin folders of Scilab to the computer without the connection. I'm surprised to say that up until now everything works fine, and when I'm running FFT I see Scilab accesses the FFTW library. Can this be a work-around, or am I talking nonsense?

Hi,

see here about MKL http://software.intel.com/en-us/articles/intel-mkl/
MKL is really faster than ATLAS or blas ref
see here: http://wiki.scilab.org/Linalg_performances about scilab and MKL

for best performance, i advise to use MKL.

if you have really no connection, your workaround can work BUT you will loose some features
no file associations , no registration windows registry (scilab will be not detected by others applications ...)



Allan CORNET
Scilab Team
11/17/2010 at 9:57:27 AM GMT
Posts: 464
  
About performance:
you can also read :
http://forge.scilab.org/upload/docprogscilab/files/progscilab-so_v0.3.pdf
chapter about performance

Allan
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