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19%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
FILE *ptr_myfile; 16 17 counter_limit = 100; 18 19 ptr_myfile=fopen("test.bin","wb"); 20 if (!ptr_myfile) 21 { 22 printf("Unable to open file!"); 23 return 1; 24 } 25 for ( counter=1; counter <= counter
18%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
needed to reposition the read head is eliminated. The admin can monitor merging of I/O blocks with iostat -x. This assumes the use of the filesystem cache. In Listing 2, wrqm/s stands for write requests
18%
Small Tools for Managing HPC
18.10.2017
Home »  HPC  »  Articles  » 
Several very sophisticated tools can be used to manage HPC systems, but it’s the little things that make them hum. Here are a few favorites.   ... ab7000)         libc.so.6 => /lib64/libc.so.6 (0x00007f5bc46f4000)         libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f5bc44de000)         /lib64/ld-linux-x86-64.so.2 (0x000056123e669000 ... Several very sophisticated tools can be used to manage HPC systems, but it’s the little things that make them hum. Here are a few favorites. ... It’s the Little Things
18%
Small-board computers
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Author, 123RF.com
: Tegra X1: 25.6GBps memory bandwidth HDMI 2.0 and HDCP 2.2 10W power Peak performance: 1,024GFLOPS with FP16; 512GFLOPS with FP32 ARM Cortex CPUs: Quad-core 64-bit ARM Cortex-A57 ... 25
18%
Extending OpenNebula with hooks
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Greg Epperson, Photocase.com
" = "" ] 17 then 18 echo "$0 error: ID missing." >&2 19 fi 20 21 id=$1 22 shift 23 24 echo "$id $(date +%s) $mode" >> $ACCOUNTING The VM_HOOK construct can appear more than once in the configuration
18%
Policy rulesets in cloud-native environments
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Lead Image © bloomua, 123RF.com
": [ 16 { 17 "GroupName": "RND-Admins" 18 } 19 ] 20 }, 21 { 22 "Path": "/", 23 "UserName": "guido", 24 "Arn": "arn:aws:iam::123456789:user/guido", 25
18%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bluebay, 123rf.com
://nmap.org ) at 2021-07-25 22:05 CEST Nmap scan report for metasploitable (192.168.122.236) Host is up (0.095s latency). Not shown: 65506 closed ports PORT STATE SERVICE 21/tcp open ftp 22/tcp open ssh 23
18%
The practical benefits of network namespaces
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Morganimation, fotolia.com
ns2 ip addr add 1.1.1.2/10 dev veth2 18 $ ip netns exec ns1 ip link set veth1 up 19 $ ip netns exec ns2 ip link set veth2 up 20 21 $ ip netns exec ns1 ping -c2 1.1.1.2 22 PING 1.1.1.2 (1.1.1.2) 56
18%
Warewulf 4
13.12.2022
Home »  HPC  »  Articles  » 
/6): tftp-server-5.2-24.el8.x86_64.rpm                         123 kB/s |  49 kB     00:00     (4/6): dhcp-server-4.3.6-47.el8.x86_64.rpm                       3.9 MB/s | 529 kB     00:00     (5/6): bind
18%
A watchdog for every modern *ix server
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Sudhith Xavier on Unsplash
forwarding the 20 # user locale env variables or we get warnings such as: 21 # bash: warning: setlocale: LC_ALL: cannot change locale 22 RUN sed -i -e 's/^AcceptEnv LANG LC_\*$/#AcceptEnv LANG LC_*/' /etc

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