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27%
Resource Management with Slurm
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Vladislav Kochelaevs, fotolia.com
In previous articles, I examined some fundamental tools for HPC systems, including pdsh [1] (parallel shells), Lmod environment modules [2], and shared storage with NFS and SSHFS [3]. One remaining
27%
Thread processing in Python
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Christos Georghiou, 123RF.com
around the GIL is to run computationally intensive code outside of Python with tools such as Cython [1] and ctypes [2]. You can even use F2PY [3] with compiled C functions. All of the previously mentioned
27%
Monitoring HPC Systems
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Alexander Rivosh, 123RF.com
so many options and opinions is not a bad thing, but you need to sort through the ideas to find something that works for you and your situation. In two further blog posts [3] [4], I wrote some simple
27%
Caching with CacheFS
07.07.2020
Home »  HPC  »  Articles  » 
. This architecture allows FS-Cache to use alternative caching mechanisms. The first implementation of CacheFS was developed by Sun Microsystems in 1993 for the Solaris 2.3 operating system. After that, other versions
27%
Warewulf Cluster Manager – Administration and Monitoring
21.08.2012
Home »  HPC  »  Articles  » 
-------------------- ----------- -------- ---------------- ------ ----- ------ ------ ----- - ----- 10.test1 laytonjb batch mpi_pi_fortran90 -- 1 3 -- 00:10 Q -- The qstat command gets the status of the queues in Torque, and the -a option tells it to check all
27%
Graphite: Collect and Visualize Numeric Data
30.07.2014
Home »  HPC  »  Articles  » 
00:00:00 Thursday January 1, 1970, Coordinated Universal Time (UTC). Listing 1: Perl Example Client #!/usr/bin/perl   use strict; use warnings; use IO::Socket; use Sys::CpuLoad;   my
27%
Malware Analysis
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © raptorcaptor, 123RF.com
image, and then Volatility [3] and Mandiant Redline [4] for further investigation. In this paper, I dive more deeply into Redline and Volatility. To begin, I review a raw memory dump of a known malware
27%
Creating and evaluating kernel crash dumps
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Giuseppe Ramos, 123RF.com
, the problem of writing a dump to an MD RAID or transferring larger kernel images ultimately proved unfixable. Further attempts with Netdump (Red Hat) or Diskdump [3] in 2002 and 2004 also had only moderate
27%
Monitoring server hardware with the Nagios IPMI plugin
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Vladimir Nenov, 123RF.com
, the FreeIPMI package, and Awk. The plugin is available online [3]. After downloading, you can simply copy the plugin to the default plugin folder. You then need to define the command in commands.cfg to make
27%
Udev with virtual machines
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © orangeline, 123RF.com
kernel ordinal number (%n). Listing 3 70-persistent-net.rules Rules for KVM: SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="52:54:00:*", KERNEL=="eth*", NAME="eth%n" Rules

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