[Radiance-general] Running multiple rpict commands for different scenes

Wed May 18 03:29:50 PDT 2011

Hello Lars and Christopher,

My idea is to run many simulations, for now up to 1200, in order to create data for a fuzzy system.  I have many simulations because I have a glass part of a building which has 4 sets of blinds which are autonomously controlled. If I am thinking correctly when the angle of each blind changes we have a new scene, which is separately simulated. For each scene I am running a new rpict command to see the result. I found out that in the University we have a grid-computer which is working on Linux. From the grid-computer web-site I read the following: 

Translators

*	C (gcc 4.1.2 <http://gcc.gnu.org/onlinedocs/gcc-3.4.6/gcc/>   gcc44  4.4.0)
*	Fortran77  <http://www.ibiblio.org/pub/languages/fortran/> & 98 (gfortran 4.1.2 gfortan44 4.4.0)
*	C++ <http://gcc.gnu.org/onlinedocs/gcc-3.4.6/gcc/>   (g++  4.1.2  g++44 4.4.0)
*	Java <http://java.sun.com/>   (jdk 1.6.0  gcj   4.1.2)
*	Python <http://www.python.org/>   2.4.3

Data bases

*	MySQL 5.0.77 <http://dev.mysql.com/doc/> 

Computational Systems

*	Matlab 7.9.0 <http://www.mathworks.com/products/matlab/> 
*	Octave 3.0.5 <http://www.gnu.org/software/octave/about.html> 
*	R-2.12.2 <http://www.r-project.org/> 

*	Management systems and grid operations
*	TORQUE 2.3.6 <http://www.clusterresources.com/products/torque-resource-manager.php> 
*	openMPI 1.4.1 <http://www.open-mpi.org/> 
*	maui 3.2 <http://www.clusterresources.com/products/maui/> 

This is the software of the grid. So I was thinking, to install Radiance on the grid and run the commands from it. So my main question is if I can use radiance on a grid-computer, and If I use the advantage of the grid by running in parallel the same command. 

For now, since I was in a hurry to get some results, I am creating the combinations in Matlab and I am running rpict from DOS. I know it is old but I for now I have in the University only an Win OS computer. 

I hope I managed to give you some details. If not please tell me so, in order to reply again.

Thank you in advance for your time

Sotiris

From: Lars O. Grobe [mailto:grobe at gmx.net] 
Sent: Wednesday, May 18, 2011 12:14 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] Running multiple rpict commands for different scenes

What exactly is your question? Of course you can start multiple rtrace or whatever processes, they will not care about each other. If you run more processes then CPUs, they will slow down, same is true (even worse) if you exceed available memory. If you have lots of scenes, you can write a script to automate the handling. You may also like batch processing queues if you have a lot of processes to distribute. Still, it is impossible to answer your question if it is that general.

Cheers, Lars.

--

Dipl.-Ing. Architect Lars O. Grobe

On May 18, 2011, at 11:11, "Sotiris Papantoniou" <sotos.enveng at gmail.com> wrote:

Hello list again,

I have a new issue concerning multiple simulations. I would run the same command (rpict, rtrace, rad) many times but for different scenes.oct. Do you know if this is possible?

Thank you in advance

Sotiris

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