[Radiance-general] compiling Radiance 64-bit?

[Jack de Valpine]

Hi Rob,

I think that you would need to add some of the following to the "MACH= 
..." line of the rmake file:

    * -m64

This will produce code specific to x86-64.

There are a variety of additional compile options that can be considered 
(32 or 64 bit). I would check out Mark Stock's Benchmark Page to get a 
sense of some things that people have tried:

    http://mark.technolope.org/pages/rad_bench.html

-Jack

Rob Guglielmetti wrote:
> Hello Radiance Users, Abusers and Confusers,
>
> Please excuse my ignorance, but assuming one has a computer with a 
> 64-bit operating system (SuSe Linux) installed, can Radiance be 
> compiled as a 64-bit application?  And if so, has anyone done it?  
> What's the makefile look like?  The reason I ask is that I'm looking 
> at possibly building up a quad system (two dual-core cpus) and with 
> the potential for four jobs running at once I think I need more 
> addressable memory.  As I understand it, with a 32-bit application 
> you're limited to 4GB total, whereas with everything 64-bit, the 
> system can address 8GB of RAM.  Since I rarely see jobs needing more 
> than 2GB of RAM, I figure having 8GB available for a maximum of four 
> jobs means no job would likely ever run out of RAM and start paging.  
> Maybe my first question should really be: am I thinking about this 
> correctly?  =8-)
> Any input appreciated.  (I think I need coffee.)
>
> - Rob
>
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>

-- 
# Jack de Valpine
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