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17%
Improved Performance with Parallel I/O
24.09.2015
Home »  HPC  »  Articles  » 
seconds) and 80% parallel (800 seconds), but with only one process. Amdahl’s Law says the speedup is 1.00. As the number of processes increase, the wall clock time of the parallel portion decreases
17%
Storage cluster management with LINSTOR
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © sdecoret, 123RF.com
Origin Data% Meta% Move LocalData_00000 drbdpool Vwi-a-tz-- 152.00m thinpool 0.04 thinpool drbdpool twi-aotz-- 300.00m 0.02 10.94 The next application example
17%
CrowdSec crowd security service
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Photo by Dan Burton on Unsplash
the servers to the console through the agent. (3) Use "bouncers" to prevent attacks actively, wherein the system simply blocks certain IP addresses. Typically, you can use the package manager to install Crowd
17%
Resource monitoring for remote applications
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image Gustavo Quepón on Unsplash.com
of profiling [2], I have focused on individual applications, either serial or parallel [3]. Profiling usually means trying to understand application resource usage patterns by answering questions such as: "How
17%
Combining containers and OpenStack
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Dmitriy Melnikov, Fotolia.com
Most IT users rely on containers à la Docker [1], rkt [2], and LXD [3] as platforms for processing data. Sooner or later, cloud solutions such as OpenStack [4] also have to contend with containers
17%
Julia Distributed Arrays
15.08.2012
Home »  HPC  »  Articles  » 
> print(owner(j,1)); 1 julia> print(owner(j,2)); 1 julia> print(owner(j,5)); 3 julia> print(owner(j,7)); 4 Similarly, a processor can ask: “What is the range of my indexes?” julia> print(myindexes(j)); (1
17%
IoT for IT
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Bruce Rolff, 123RF.com
been reached. The picture is similar with other Internet services: Almost everyone uses services such as email [3]. Both the service provider industry and hardware manufacturers need new markets: one
17%
Application virtualization with Docker
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Oleksiy Mark, 123RF.com
containers (Figure 3) – that is, completely virtualized operating systems – and application containers (Figure 4) for virtualizing a particular application, including its run-time environment. However, LXC
17%
Hacking Mutillidae II
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by USGS on Unsplash
the origin of the name (and how to pronounce it). The Wikipedia [3] page does a great job of joining the dots with the link to wasps: "The Mutillidae are a family of more than 7,000 species of wasps whose
17%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
days, then you might be able to capture data about whether a node is alive or dead infrequently, perhaps every 5-15 minutes, or even longer if you like. Checking it once every 3 seconds seems a bit like

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