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Hi Thomas,

thanks for the information.  But I am a bit puzzled.  True, I am using
an older reduce, from about 2007, and yes meminfo does fail "*****
`meminfo' is an undefined function".  But the reason I am using the
old is that I tried downloading and installing reduce earlier this
year and got version 20091021  (installation was awful). It eventually
worked, but I had no more memory with it than my old version, and
running the new again just now again I find "meminfo" also fails:
> MacTony:bin a1184615$ redpsl Loading image file
> :/Users/a1184615/Library/reduce-algebra-20091021/scripts/../pslbuild/universal-mac_10.6_snowleopard-darwin10.4.0/red/reduce.img
>
>
>

Reduce (Free PSL version), 22-Jun-2010 ...
>
> 1: load_package redlog; lisp meminfo();
>
> 2: ***** `meminfo' is an undefined function

I had gone back to my old version because redfront worked with it, but
did not for the new.

Question:  is the version 20091021 meant to support gigbytes?  If so,
can you suggest why mine does not?
It is still the most recent version available for download at
http://sourceforge.net/projects/reduce-algebra/files/

If this is not the 64-bit version, where is it?

Tony

BTW I am also mystified about the difference between csl and psl:
which is better? presumably one is better for some things? and the
other for other things?  But roughly what?



On 26/08/10 4:03 PM, Thomas Sturm wrote:
> First the answer to your question: Yes it is possible to get a few
> gigabytes.
>
> It looks like you are using a 32 bit version of PSL Reduce, and you
> would need a 64 bit one. Could you please go
>
> load_package redlog; lisp meminfo();
>
> If this does not work, then your Reduce is quite old; then please
> check the memory address of nil:
>
> lisp unixputn nil;
>
> which will probably output 8 hex digits = 4 bytes = 32 bit on your
> system.
>
> Where and when did you get your Reduce? If you check out and
> compile the current version from the svn, you should automatically
> get 64 bit versions for both CSL and PSL on Snow Leo.
>
> Installation is described here:
>
> http://sourceforge.net/apps/mediawiki/reduce-algebra/index.php?title=Installation
>
>
>

And here is some interesting information about heap sizes. Notice that
the -td argument is scaled differently with 64 bit Reduce:
>
> http://sourceforge.net/apps/mediawiki/reduce-algebra/index.php?title=Heap
>
>
>

Thomas
>
>
> Am 25.08.2010 um 22:51 schrieb Tony Roberts:
>
> Hi,
>
> I am studying stochastic systems and the complexity of the algebra
> increases by a couple of orders of maginitude over deterministic
> systems so I need much more memory than the standard reduce.  I am
> currently executing psl reduce on a Mac OS10.6.  Its memory usage
> peaks at 113Mbytes.  I would like to give it a few gigabytes.  Is
> there any way to do so?
>
> To no avail, I  tried adding an extra zero to the -td parameter as
> in exec  $reduce/lisp/psl/macintel/psl/bpsl -td 120000000 \ -f
> $reduce/lisp/psl/macintel/red/reduce.img
>
> Tony--
> ---------------------------------------------------------------------
>
>

Professor A.J. Roberts
> School of Mathematical Sciences  phone: +61 8 8313 3035 University
> of Adelaide           fax:   +61 8 8313 3696 South Australia 5005.
> mailto:anthony.roberts@adelaide.edu.au
> http://www.maths.adelaide.edu.au/anthony.roberts/
> ==.0000001000000100000110001000011010001111110010111011101000010000==
>
>

I have a smoke free office and a Microsoft free computer.
>
>>
>>

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Professor A.J. Roberts
School of Mathematical Sciences  phone: +61 8 8313 3035
University of Adelaide           fax:   +61 8 8313 3696
South Australia 5005.            mailto:anthony.roberts@adelaide.edu.au
http://www.maths.adelaide.edu.au/anthony.roberts/
==.0000001000000100000110001000011010001111110010111011101000010000==
I have a smoke free office and a Microsoft free computer.

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