Mailinglist Archive: opensuse-amd64 (380 mails)

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Kernel support for large arrays...
  • From: JOSE LUIS RICARDO-CHAVEZ <ricardo@xxxxxxxxxxxxxxxxxx>
  • Date: Sun, 22 Feb 2004 20:35:03 +0000 (UTC)
  • Message-id: <40392509.7080205@xxxxxxxxxxxxxxxxxx>


recently we have installed in our lab an Opteron system (Tyan 2882 motherboard,
two Opteron 244 processor, 8 GB memory) running SuSE AMD64 9.0 Using the
PGI compiler suite we did some memory allocation tests. We found a modest 4 GB
memory limit per allocated array. According to PGI engineers this is not a compiler
fault, the limit is just set in kernel's mmap.c routine. Would it be safe to
change this value and recompile the kernel or it would require changing some other
Thanks for your help,

- Jose Luis

José Luis RICARDO-CHAVEZ Tel. +33-5-61-55-68-33 Laboratoire de Physique Quantique Fax +33-5-61-55-60-65
Université Paul Sabatier 118 route de Narbonne
F-31062 Toulouse, France

e-mail: ricardo@xxxxxxxxxxxxxxxxxx

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