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9%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
} 'a'..'c'; 12 13 $s .= $one; 14 $s .= $two; 15 $s .= $three; 16 17 my $temp; 18 for (my $i=0; $i<12288; $i++) { 19 $temp=substr($s,length($s)-1,1); 20 $s=$temp.$s; 21 $s = substr($s,0
9%
Q-CTRL Announces New Error-Reduction Technique for Quantum Computing
10.11.2021
Home »  HPC  »  News  » 
 
enhancement. In contrast, an alternate strategy achieved approximately 15 percent improvement and consumed 20X more resources (the peak measurable benefit we saw on a five-qubit QFT was over 12X). For fixed
8%
Using rsync for Backups
07.01.2014
Home »  Articles  » 
 
” and really is a copy of the data as it existed when the copy was made (point in time). It is a true copy, so if you create a full backup of 20TB of data, you will need another 20TB to store the copy. It’s
8%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 2.00 8.00 2.00 9500.00 16.00 151948.00 31.99 1.07 0.11 4.00 0.11 0.09 88.40 If your read or write
8%
Desktop Blades (of Glory)
06.05.2024
Home »  HPC  »  Articles  » 
various components, ranging from the small Cluster HAT, to a small Raspberry Pi cluster, to an eight-node x86 stack. In my previous home I had three 20A circuits installed for clusters, I really like great
8%
Warewulf Cluster Manager – Completing the Environment
20.06.2012
Home »  HPC  »  Articles  » 
:2:root,bin,daemon sys:x:3:root,bin,adm adm:x:4:root,adm,daemon tty:x:5: disk:x:6:root lp:x:7:daemon,lp mem:x:8: kmem:x:9: wheel:x:10:root mail:x:12:mail,postfix uucp:x:14:uucp man:x:15: games:x:20
8%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019 write: IOPS=352, BW=1410KiB/s (1444kB/s)(82.8Mi
8%
StarCluster Toolkit: Virtualization Meets HPC
16.01.2013
Home »  HPC  »  Articles  » 
------------------------------------------------------------------------------- global                  -               -     -       -       -       -       - master                  linux-x64       1  0.20  590.8M   68.1M  243.2M     0.0 node001                 linux-x64       1  0
8%
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
8%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
` ]]; then 078 mkdir ./`dirname $l` > /dev/null 079 fi 080 cp $l .$l 081 done 082 done 083 084 cd /export/home/jail/$JAILUSER/devices/pseudo 085 mknod mm@0:zero c 13 12 086 mknod mm@0:null c 13 2

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