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The following messages will be written to the SAS log when you run out
of memory when adding keys and associated data items to a hash object.

   FATAL: Insufficient memory to execute data step program. Aborted
          during the EXECUTION phase.
   NOTE: The SAS System stopped processing this step because of
         insufficient memory.

In some cases, these messages may be generated even though there is
still memory available.  These types of failures may occur on machines
which have an XMRLMEM value which will overflow a 4-byte integer.  This
causes an excessively large memory allocation request which results
in the inaccurate 'out of memory' condition.

The code below illustrates how to get the value of XMRLMEM.

   data _null_;
     amt = getoption('xmrlmem');
     put amt=;
   run;

If the value of amt is 2,147,483,647 or greater then you may be getting
the insufficient memory error incorrectly. This problem is fixed in SAS
9.1.3 Service Pack 4.

Also beginning with SP4, when the system option MSGLEVEL=I is
specified, a message is written to the SAS log reporting the number of
items added to the hash object when the memory shortage occurs.

Operating System and Release Information