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19%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
(colour = guide_legend(override.aes = list(size=3))) + theme(axis.text.x = element_text(face = "bold", color="black"), axis.text.y = element_text(face = "bold", color="black"), axis.title.x = element
19%
Improved Performance with Parallel I/O
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Ying Feng Johansson, 123RF.com
% parallelizable (20% is serial, primarily because of I/O). For one process, the wall clock time is assumed to be 1,000 seconds, which means that 200 seconds is the serial portion of the application. By varying
19%
Podman for Non-Root Docker
05.08.2024
Home »  HPC  »  Articles  » 
fd9255658c128086395d3fa0aedd5a41ab6b034fd649d1a9260 testuser@laytonjb-MINI-S:~$ podman run -it alpine /bin/sh / # cat /etc/os-release  NAME="Alpine Linux" ID=alpine VERSION_ID=3.20.2 PRETTY
19%
ISC 2024 from a Distance
10.06.2024
Home »  HPC  »  Articles  » 
in gigaflops per watt over time. The first Green500 list was in June 2013. The number 1 system used GPUs even then (NVIDIA K20 with QDR InfiniBand). The energy efficiency was 3,208.8Mflops/W (0.32Gflops
19%
Parallel Shells: Run Commands on Multiple Nodes
02.07.2014
Home »  HPC  »  Articles  » 
 host,host,...  set target node list on command line -x host,host,...  set node exclusion list on command line -R name           set rcmd module to name -M name,...       select one or more misc modules to initialize first -N
19%
Get Started with Parallel CPython
07.11.2011
Home »  HPC  »  Articles  » 
.start() 15     p1.start() 16     p3.start() 17  18     p1.join() 19     p2.join() 20     p3.join() To see that multiprocessing creates multiple subprocesses, run the code shown in Listing 2
19%
Securing the container environment
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © zeferli, 123RF.com
the wget command shown in Listing 3 with its output to download the revershell file. Now make the module executable and insert the module into the host: chmod +x revershell.ko insmod revershell
19%
A watchdog for every modern *ix server
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Sudhith Xavier on Unsplash
forwarding the 20 # user locale env variables or we get warnings such as: 21 # bash: warning: setlocale: LC_ALL: cannot change locale 22 RUN sed -i -e 's/^AcceptEnv LANG LC_\*$/#AcceptEnv LANG LC_*/' /etc
19%
Environment Modules
23.02.2012
Home »  HPC  »  Articles  » 
.0 globalarrays/open64/openmpi/64/4.2 mvapich2/gcc/64/1.2 acml/open64-int64/64/4.3.0 hdf5/1.6.9 mvapich2/open64/64/1.2 blacs/openmpi/gcc/64/1.1patch03 hpl/2.0
19%
Look for file changes and kick off actions with Watchman
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © leksele, 123RF.com
] 20 } 21 ] 22 } 23 ] 24 } The script that performs the rsync operation, sync.sh, will look like Listing 3. Your script might be more complex (e.g., by adding some sort

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