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15%
File Compression for HPC
10.11.2021
Home »  HPC  »  Articles  » 
speeds several times faster than Deflate. An implementation of lz4  for Linux has been part of the Linux kernel since 3.11 and has been used by SquashFS since kernel version 3.19-rc1. The lz4 utility
15%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
of an application allows it to run faster and scale better than serial applications (see Amdahl's law [3]). Today's processors have multiple cores, and accelerators such as GPUs have thousands of lightweight cores
15%
Set up subdomains with Apache and Nginx
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © Saniphoto, Fotolia.com
89.221.14.204... Connected to www.wintermeyer.de. Escape character is '^]'. GET / HTTP/1.1 HOST: www.wintermeyer.de HTTP/1.1 301 Moved Permanently Server: nginx/1.10.3 Date: Fri, 27 Nov 2020 14:00
15%
How to configure and use jailed processes in FreeBSD
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Corina Rosu, 123RF.com
/sbin/named ... 774 ?? SsJ 0:00,12 /usr/sbin/sshd ... 781 ?? IsJ 0:00,87 /usr/sbin/cron -s ... The jls command lets you view all the currently active jails, as shown in Listing 6. Listing 6 Active Jails
15%
Hardware MFA: Death to the password!
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © alphaspirit, 123RF.com
report [3] said weak passwords contributed to 31% of compromises investigated. Without picking on any one organization, choose a company, a social network, and a cloud provider; now, look up
15%
VAX emulation with OpenVMS
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Ole Houen, 123RF
rq2 ra92 08 set rq3 cdrom 09 10 attach rq0 d0.dsk 11 attach rq1 d1.dsk 12 attach rq2 d2.dsk 13 14 attach -r rq3 cdrom.iso 15 16 set rl disable 17 set ts disable 18 19 set xq mac=08-00-2B-AA-BB-CC 20
15%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
of the loop, n , is large enough, some processing hardware can greatly speed up the computation. What happens if z(i)  depends on a previous value, as in the following: do i = 2,n    z(i) = z(i-1)*2 enddo
15%
Develop your own scripts for Nmap
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Raman Maisei, 123RF.com
something like Listing 2. Listing 2 Sample Output Starting Nmap 6.47 (http://nmap.org) at 2015-03-12:00:00 CET Nmap scan report for targethost (192.168.1.100) Host is up (0.023s latency). r
15%
Parallel and Encrypted Compression
09.12.2021
Home »  HPC  »  Articles  » 
 -n # , where #  is the number of threads and a space falls between it and the switch (Listing 3). Listing 3: lbzip2 $ lbzip2 -v -n 4 package-list.txt lbzip2: compressing
15%
Manage software apps publicly and privately
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Akurhan, 123RF.com
.VisualStudioCode" }, { "PackageIdentifier" : "Microsoft.OpenJDK.16" }, { "PackageIdentifier" : "Python.Python.3.12" } ], "SourceDetails" : { "Argument" : "https://cdn.winget.microsoft.com/cache", "Identifier" : "Microsoft

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