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14%
Failure to Scale
03.07.2013
Home »  HPC  »  Articles  » 
speedup, n is the number of processors, and p is the parallel fraction, or the fraction of the application that is parallelizable (0 to 1). In an absolutely perfect world, the parallelizable fraction
14%
Look for Bottlenecks with Open|SpeedShop
21.12.2011
Home »  HPC  »  Articles  » 
.000000, 1.000000) (n_pre, n_post) = (1, 1) dim             = 3 solver ID       = 0 ============================================= Struct Interface: ============================================= Struct
14%
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?
14%
Zero-Ops Kubernetes with MicroK8s
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Among the number of burgeoning Kubernetes distributions available today is the excellent production-ready K3s [1], which squeezes into a tiny footprint and is suitable for Internet of Things (Io
14%
Favorite benchmarking tools
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Lucy Baldwin, 123RF.com
in your prized archive of ADMIN back issues [3]. Table 1 sums up the capabilities of this versatile tool, which include memory use, basic network benchmarks (packet counts), filesystem I/O operations (read
14%
Automating the Azure infrastructure using a command-line interface
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © nk88, photocase.com
out the Azure CLI using a Mac. After you have downloaded the installation package from the Azure Portal [3], the intuitive setup is performed straight away – assuming you have the rights to manage
14%
Tools that extend Bash scripting
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Laschon Maximilian, 123RF.com
--radiolist "Select one" 20 40 10 \ tag1 item1 off \ tag2 item2 off \ tag3 item3 on Figure 7: Xdialog radio list dialog box. zenity (GUI
14%
Detecting and analyzing man-in-the-middle attacks
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Photo by Soner Eker on Unsplash
arp -a (Figure 1). On Linux computers ip n s Figure 1: The ARP cache can be displayed from the Windows command line. does the same thing
14%
Installing and operating the Graylog SIEM solution
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Leo Blanchette, 123RF.com
SeverityValue = 3; else $SyslogSeverityValue = 6; 20 21 # The name of the file is also sent with the file 22 Exec $FileName = file_name(); 23 24 # The SourceName variable is set by default to 'NXLOG'. To send
14%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
identified the following physical drives that I will be using in my examples: $ cat /proc/partitions |grep -e sd[c,d] -e nvm  259        0  244198584 nvme0n1  259        2  244197543 nvme0n1p1    8       32

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