Re: memory allocation on Macs

pgrigis wrote:
> Hi folks,
> 
> we have pretty much exhausted the topic of memory
> allocation on Windows and Linux, but I don't remember
> any discussion abut this on Mac OS.
> 
> So, I am using IDL 6.3 on Mac OS X 10.4.11.
> 
> I tried allocating as many 1GB array as possible,
> and it failed after 3 successful allocations.
> Now, the "Activity Monitor" indicates that at this point
> I have 3.6 GB of memory used and 3.4 GB free.
> So I am wondering why cant'I allocate a couple more
> of 1GB arrays?

I'm not a macatista, but a quick google search reveals that as of 10.3, 
the per process memory limit in OS X is 4GB.  That squares with what 
you're seeing.  Someone more in the know might be able to tell you 
if/how this can be tuned.  For instance using "setrlimit".

-Rick