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18%
Configuration management with CFEngine 3
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © iofoto, Fotolia.com
-agent --bootstrap 192.168.38.131 notice: Bootstrap mode: implicitly trusting server, use --trust-server=no if server trust is already established notice: Trusting new key: MD5=d67ad40160db5f79a616eea18bb9073c R ... CFEngine 3 comes with a promise of more efficient configuration management and strict compliance with policies; however, it faces some tough competition. ... CFEngine 3 ... Configuration management with CFEngine 3
18%
Application virtualization with Docker
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Oleksiy Mark, 123RF.com
context Step 0 : FROM fedora ---> 7d3f07f8de5f Step 1 : MAINTAINER Thorsten Scherf ---> Running in e352dfc45eb9 ---> f66d1467b2c2 Removing intermediate container e352dfc45eb9 Step 2 : RUN yum update -y
18%
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? ... .2. Assigning the base serial portion s B = 0.195, independent of n , leaves the communication portion s C = 0.005. Figure 2 shows the plot of speedup a as a function of the number of processors ... 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?
18%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
3: Gang Execution Fortran C !$acc parallel    do i=1,n       ! do something    enddo !$acc end parallel     #pragma acc parallel {    for (int i=0; i < n
18%
Isolate workloads from Docker and Kubernetes with Kata Containers
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Photo by Stephen Pedersen on Unsplash
. To compare how Kata Containers performs against a runC run time, the script in Listing 3 starts 100 containers from the nginx image and stores a short, individual and static file, each containing the number
18%
S.M.A.R.T., smartmontools, and drive monitoring
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © _fla, 123RF.com
). Smartmontools is compatible with all S.M.A.R.T. features and supports ATA/ATAPI/SATA-3 to -8 disks and SCSI disks and tape devices. It also supports the major Linux RAID cards, which can sometimes cause ... Modern drives use S.M.A.R.T. (self-monitoring, analysis, and reporting technology) to gather information and run self-tests. Smartmontools is a Linux tool for interacting with the S.M.A.R.T. features ... S.M.A.R.T., smartmontools, and drive monitoring
18%
Network traffic utilities bandwhich and iftop
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Ildar Galeev, 123RF.com
this problem, so I decided to take that route instead of installing Cargo. From the Releases page [3] on the GitHub, repository you can see the latest build. In my case, that was version 0.9.0 at the time
18%
Tools that extend Bash scripting
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Laschon Maximilian, 123RF.com
tput cup 5 17 # Set reverse mode tput rev echo "M-A-I-N M-E-N_U" tput sgr0 # Write first line of menu tput cup 7 15 echo "1. User" # Write second line of menu tput cup 8 15 echo "2. Service" # Get
18%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
but independently of one another (Figure 2). Table 3 Gang Execution Fortran C !$acc parallel do i=1,n ! do something enddo!$acc end parallel pragma acc parallel{ for (int i=0; i
18%
Stat-like Tools for Admins
19.11.2014
Home »  HPC  »  Articles  » 
the CPU (-c ), load (-l ), and disk (sdc ) for 10 seconds at one-second increments. Figure 3: Dstat output with focus on CPU, load, and disk stats while

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