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9%
The RADOS Object Store and Ceph Filesystem
24.04.2012
Home »  HPC  »  Articles  » 
the Software Before experimenting, you need to install RADOS and Ceph. Ceph, which is a plain vanilla filesystem driver on Linux systems (e.g., ext3 or ext4), made its way into the Linux kernel in Linux 2.6
9%
RADOS and Ceph: Part 2
22.10.2012
Home »  HPC  »  Articles  » 
example creates a Crush map for a setup consisting of six OSDs (i.e., individual storage devices in servers) distributed over three racks: crushtool --num_osds 6 -o crush.example.map --build host straw 1
9%
Red Hat’s Cloud Tools
08.07.2013
Home »  Articles  » 
 
of the open source JBoss application server, which in turn is based on the JBoss Enterprise Application Platform 6, OpenShift now also supports Java EE 6, which — according to Red Hat — makes OpenShift more
9%
How Old is That Data?
20.04.2017
Home »  HPC  »  Articles  » 
repository (e.g., the CentOS 6 and CentOS 7 EPEL repositories). However, if it isn't there, it is simple to install, configure, and run. A simple and familiar ./configure command builds the code, after which
9%
Small Tools for Managing HPC
18.10.2017
Home »  HPC  »  Articles  » 
a000)         libpgc.so => /opt/pgi/linux86-64/16.10/lib/libpgc.so (0x00007f5bc4fc2000)         librt.so.1 => /lib64/librt.so.1 (0x00007f5bc4dba000)         libm.so.6 => /lib64/libm.so.6 (0x00007f5bc4
9%
mpi4py – High-Performance Distributed Python
12.11.2020
Home »  HPC  »  Articles  » 
on four processes is shown in Listing 6. Notice that processes 3 and 4 didn’t contribute or do anything. Listing 5: Point-to-Point import numpy from mpi4py import MPI     comm = MPI.COMM_WORLD rank
9%
Multicloud management with Ansible
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Pawel Nolbert on Unsplash
statements as for the AWS rollout, except the loop playbook for GCP differs significantly from the AWS rollout, as Listing 6 shows. Listing 5 Playbook rollout_gcp.yml --- - hosts: localhost
9%
Secure SSH connections the right way
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © Olivier Le Moal, 123RF.com
-Grundschutz (Basic Protection) Compendium [5], serve as public information security guidelines for many companies because they are very close to the requirements of ISO 27001 IT management certification [6]. Other
9%
Secure Your KVM Virtual Machines
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © George Tsartsianidis, 123RF.com
can be regulated by SELinux, AppArmor, or some other mandatory access control system. The sVirt component in libvirt 0.6.1 and newer actually does some of the work for SELinux and AppArmor [2
9%
Save and Restore Linux Processes with CRIU
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Valentin Volkov, 123RF.com
distributions satisfy this condition, but popular Linux distributions on servers, Debian 7, and CentOS 6.5 do not. The use of CRIU on these systems thus would require a kernel upgrade. The running kernel must

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