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54%
Creating KVM machines with BoxGrinder and VMBuilder
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© yewkeo, 123RF.com
"/home": 11 size: 1 12 "swap": 13 size: 0.5 14 cpus: 1 15 memory: 1024 16 packages: 17 - @core 18 - @mysql 19 - acpid The only mandatory items are the name, the os ... 12
54%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
) ) ! mem for unew, u 087 088 ! 089 ! Boundary Conditions 090 ! =================== 091 ! 092 pi = DACOS(0.0d0) 093 094 ! Top of unit square: (N) 095 DO i=1,m 096 x=delta*(i-1) 097 u(i,m) = dsin ... 12
53%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
allows you to define a 18 # character to toggle this mode off and on. 19 set force_conservative 0 ;# set to 1 to force conservative mode even if 20 ;# script wasn't run ... 12
53%
Reading and understanding database execution plans
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Gunnar Pippel, 123RF.com
------------------------------------------------------------------------------ 10 Hash Join <+>2<+>( cost=3091.01..13119.07 rows=59654 width=1286) 11 Hash Cond: (s.employee_id = e.employee_id) 12 -> Index Scan using sale_date on sales s (cost=0.01..3893.82 rows=59654 width=251 ... 12
42%
Mailman 3.0 – a long time coming
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Andrey Bayda, 123RF.com
is a professional software tool, and the fan base appreciates its solid operating principles. Version 1.0 was released in mid-1999 [1], followed by 2.0 in 2000. The latest stable branch 2.1 appeared about 12 years ... Mailman 3.0 is a new major version, released 15 years after version 2.0. We put the new version through its paces and explain the installation procedure and new features. ... Mailman 3.0 ... Mailman 3.0 – a long time coming
35%
Ubuntu Kernel Update Patches 12 Vulnerabilities
30.09.2021
Home »  News  » 
 
Canonical has released updates for the 5.4 kernel used in the two latest LTS releases of Ubuntu (18.04 and 20.04) on all supported architectures and platforms.  There are 12 vulnerabilities patched ... The latest kernel patch to be published by Canonical includes patches that affect the 5.4 LTS kernel in Ubuntu 18.04 and 20.04. ... Ubuntu Kernel Update Patches 12 Vulnerabilities
33%
Secure status and event monitoring of tier 0 systems
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Brian Jackson, 123RF.com
From a security perspective, tier 0 systems such as domain controllers, privileged access workstations, or identity management systems provide direct access to digital resources, so more and more ... Tier 0 Monitoring ... Secure status and event monitoring of tier 0 systems
33%
Proxmox virtualization manager
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image by Daniela Cuevas on Unsplash.com
de facto standard for distributed storage in Proxmox VE 5.0. Plans for the near future include integration of the advantages of the upcoming Ceph LTS version 12.2, aka Luminous: The "Blue Store" back ... Proxmox has been working for years on their virtualization manager that does not require a cloud. We look at the improved reliability and new features in version 5.0. ... Proxmox 5.0
26%
Performance Health Check
13.06.2022
Home »  HPC  »  Articles  » 
Many HPC systems check the state of a node b efore  running a n  application, but not very many check that the performance of the node is acceptable before running the job. ... .69 17.26 67.7 IS (4 cores) 0.6 2.16 8.2 LU (6 cores) 5.13 41.8   MG (4 cores) 1.2 3.8 39.1 SP (4 cores ... Many HPC systems check the state of a node b efore  running a n  application, but not very many check that the performance of the node is acceptable before running the job.
23%
Why Good Applications Don’t Scale
13.10.2020
Home »  HPC  »  Articles  » 
You ha ve parallelized your serial application ,  but as you use more cores you are  n o t seeing any improvement  in performance . What gives? ... , a is the application speedup, n is the number of processors, and p is the “parallel fraction” of the application (i.e., the fraction of the application that is parallelizable), ranging from 0 to 1. Equations are nice ... You  ha ve parallelized your serial application ,  but as you use more cores you are  n o t seeing any improvement  in performance . What gives?

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