[Octave-bug-tracker] [bug #50603] save -mat fails for large (# of bytes) variables

[Dan Sebald]

Follow-up Comment #1, bug #50603 (project octave):

944*944*437 * 8 bytes/double = 3.1 G which is near the boundary of 32 bit
memory space.  Are you running a 32-bit build of Octave?  Or a 64-bit build of
Octave?

I'm using 64-bit build on a 64-bit version of Linux (otherwise, even the
operating system wouldn't access but 4G of memory) and things seem to work
fine (uses barely any CPU while the disk churns away):


octave:2> 2^32
ans =    4.2950e+09
octave:3> x = ones([944 944 437]);
octave:5> 944*944*437 * 8
ans =    3.1154e+09
octave:6> save -mat "junk.mat"
octave:7> clear
octave:8> load "junk.mat"
octave:9> size(x)
ans =

   944   944   437



$ ls -l junk.mat
-rw-r--r-- 1 sebald sebald 3115411712 Mar 21 13:12 junk.mat


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