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31%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
# Header for user-specific report 19 printf("%2s\t%4s\t%4s\tD=%2d\n", "N", "Xdat", "Xpdq", MAXDUMMIES); 20 21 foreach $users (sort {$a <=> $b} @vusers) { 22 pdq::Init($model); 23 $pdq::streams = pdq
31%
Warewulf 4 – Python and Jupyter Notebooks
13.04.2023
Home »  HPC  »  Articles  » 
Interactive HPC applications written in languages such as Python play a very important part today in high-performance computing. We look at how to run Python and Jupyter notebooks on a Warewulf 4 ... -*- -------------------------------------------------------------------------------- -- Anaconda (Python) (Version 22.9.0 Python 3.9.13 (main, Aug 25 2022, 23:26:10) -------------------------------------------------------------------------------- help( [[ This module loads Anaconda so you can
31%
Graph database Neo4j discovers fake reviews on Amazon
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Image by Gerd Altmann from Pixabay
log.Fatal(err) 21 } 22 23 var config Config 24 err = yaml.Unmarshal(data, &config) 25 if err != nil { 26 log.Fatal(err) 27 } 28 29 created := map[string]bool{} 30 cmd := "" 31
31%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
select(HostCt, ServerOwner, Date) %>% 078 arrange(desc(HostCt)) 079 head8 <- head(top8, 25) 080 081 data9 <- sheet9 082 patchdata9 <- data.frame(data9) 083 top9 <- patchdata9 %>% 084 select
31%
Warewulf 4 – Time and Resource Management
17.01.2023
Home »  HPC  »  Articles  » 
-mod-slurm-ohpc            x86_64     2.34-9.1.ohpc.2.6         OpenHPC-updates      13 k  slurm-devel-ohpc               x86_64     22.05.2-14.1.ohpc.2.6     OpenHPC-updates      83 k  slurm-example-configs-ohpc     x86_64     22
31%
Building a HPC cluster with Warewulf 4
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Photo by Andrew Ly on Unsplash
-mod-slurm-ohpc x86_64 2.34-9.1.ohpc.2.6 OpenHPC-updates 13 k slurm-devel-ohpc x86_64 22.05.2-14.1.ohpc.2.6 OpenHPC-updates 83 k slurm-example-configs-ohpc x86
31%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
.13.134.52):            Not shown: 994 filtered ports            PORT    STATE  SERVICE VERSION            22/tcp  open   ssh     OpenSSH 4.3 (protocol 2.0)            25/tcp  closed smtp            53/tcp  open   domain  ISC BIND 9
31%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 25/tcp closed smtp
31%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Tormod Rossavik, 123RF.com
lxc.cgroup.devices.allow = c 1:9 rwm 25 lxc.cgroup.devices.allow = c 1:8 rwm 26 lxc.cgroup.devices.allow = c 136:* rwm 27 lxc.cgroup.devices.allow = c 5:2 rwm 28 # rtc 29 lxc.cgroup.devices.allow = c
31%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
_Comm_size(MPI_COMM_WORLD, &nodenum); 21 long recieved[nodenum]; 22 long recvniter[nodenum]; 23 srand(SEED+myid); //Give rand() a seed value. Needs to be different on each node 24 25 if(myid != 0

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