Hello, I run CentOS 5.6 on a Dell PowerEdge R815 with 256 GB of RAM. We use Sun Grid Engine to schedule jobs on this node. I want to limit the memory usage about 150 GB per process. So i use the /etc/security/limits.conf configuration file. I test this configuration with some tools with a lower GB limit (about 2 or 4 GB), and it works ! But, at least one process (oases - a bioinformatics tool) bypass this limitation and use always 240 GB of memory (the last run) !! /etc/security/limits.conf ... # * hard rss 150000000 * soft rss 150000000 # * hard as 150000000 * soft as 150000000 # ... # uname -r 2.6.18-238.9.1.el5.centos.plus Any idea ? Thanks -- Christophe Caron Station Biologique - Service Informatique et Génomique christophe.caron at sb-roscoff.fr Place Georges Teissier - 29680 Roscoff tél: +33 (0)2 98 29 25 43 / tél: +33 (0)6 07 83 54 77 fax: +33 (0)2 98 29 23 24 Analysis and Bioinformatics for Marine Sciences Platform http://abims.sb-roscoff.fr/ -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 5103 bytes Desc: S/MIME Cryptographic Signature URL: <http://lists.centos.org/pipermail/centos/attachments/20110603/3e5ebe12/attachment-0004.p7s>