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25%
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?
25%
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
25%
Kubernetes clusters within AWS EKS
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Zlatko Guzmic, 123RF.com
IP address of the cluster. Listing 3 Running Pods $ kubectl get pods -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system aws-node-96zqh
25%
Container IDE with cloud connection
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Photo by Christin Hume on Unsplash
pretty exciting provides detailed documentation; however, for the build process, you need the A, B, and C libraries and some additional tools – all of this, of course, in versions that your distribution
25%
Practical SELinux
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Pavel Ignatov, 123RF.com
is preventing /usr/bin/xchat from name_connect access on the tcp_socket. For complete SELinux messages run sealert -l482a1457-4fdc-4d8c-91d0-d5ddf4b23891 My Own Rules When I call sealert, the tool tells me
25%
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
25%
Building a virtual NVMe drive
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © lassedesignen, 123RF
7 1 56008 loop1 06 7 2 56184 loop2 07 7 3 91264 loop3 08 259 0 244198584 nvme0n1 09 8 0 488386584 sda 10 8 1 1024 sda1 11
25%
Single sign-on like the big guys
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Lead Image © Sergey Nivens, 123RF.com
_domains = "*" # Keycloak configuration oidc_issuer_url = "http://localhost:8080/realms/testrealm" provider = "keycloak-oidc" client_id = "proxy" client_secret = "t1BmFL4HHk7xC6nPYJEMfiprMfw1QK7b" # Cookie settings cookie
25%
Kubernetes Auto Analyzer
05.10.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
 /etc/profile.d/rvm.sh $ rvm reload $ rvm requirements run $ rvm install 2.5 # This may take a while $ rvm list $ rvm use 2.5 --default $ ruby --version $ gem update # Errors not related to kubeclient
25%
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

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