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From: dona@pooky.engr.washington.edu
Newsgroups: comp.unix.aix
Subject: Re: huge memory allocation
Message-ID: <18169@milton.u.washington.edu>
Date: 11 Mar 91 16:02:41 GMT
References: <18016@milton.u.washington.edu>
Sender: news@milton.u.washington.edu
Reply-To: dona@pooky.ee.washington.edu (Don Allen)
Organization: Image Computing Systems Laboratory, University of Washington
Lines: 15

In article <18016@milton.u.washington.edu> dona@pooky.ee.washington.edu (Don Allen) writes:
>I am trying to run an application process which requires an allocation
>of about 150M of memory, but am unable to do so.  The largest amount
>of memory I have been able to get a single process to successfully
>acquire (using calloc or malloc, with either one or multiple calls)
>is about 33M; any larger request has NULL returned.

The problem was that there was a soft limit on the maximum amount
of data memory that a process could use; this limit is defined in
/etc/security/limits.  By running the shell command "unlimit" in the
shell before running the application, the soft limit is removed, and
the application can allocate the memory successfully.  Thanks to all
who helped.

-- Don Allen