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15%
Improving performance with environment variables
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © sgame, fotolia.com
in increased performance. Octave Probably one of the best examples I know for the use of the LD_PRELOAD trick is to push basic linear algebra subprogram (BLAS) [3] computations from a CPU onto an NVidia GPU. I
15%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
't connect to $remote_host:$remote_port: $@ \n"; 17 18 19 while() { 20 my @lavg = Sys::CpuLoad::load(); 21 my $ts=time(); 22 print $socket "system.loadavg_1min $lavg[0] $ts\n"; 23 print $socket "system
15%
Warewulf 4
13.12.2022
Home »  HPC  »  Articles  » 
the Compute Hostname $ ping n0001 PING n0001-default (10.0.1.1) 56(84) bytes of data. 64 bytes from n0001-default (10.0.1.1): icmp_seq=1 ttl=64 time=2.20 ms 64 bytes from n0001-default (10.0.1.1): icmp_seq=2
15%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
$st2->execute($dbh->{pg_pid}); 16 if( !$st2->fetchrow_arrayref->[0] ) { 17 warn "couldn't stop backend PID=$dbh->{pg_pid}\n"; 18 } 19 exit 1; 20 } 21 22 POSIX::sigaction(SIGTERM, POSIX
15%
Comparing 5 to 50TB NAS storage boxes
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Franck Boston, fotolia.com
immediately notice about this device is its excellent equipment, with USB 3.0 (4x plus 4x USB2.0!), eSATA, and HDMI, optional 10Gb Ethernet (PCI Express slot), and a Sandy Bridge processor. You can retrofit
15%
An army of Xeon cores to do your bidding
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
Dell Precision Workstation T7910 Power 1,300W CPU 2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3 GPU, NPU n/a* Memory
15%
Live Kernel Update Tools
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Andrea, Fotolia.com
that the installation overhead is considerably greater. Figure 1: Lab systems: (top) Fedora 20 with a brand new 3.14 kernel; (bottom) SUSE 13.1 with kernel 3
15%
Nagios alerts implemented via VoIP
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Zentilia, 123RF.com
well. Of the available clients, PJSUA [3] turns out to be the best choice. PJSUA is the PJSIP reference implementation, and it comprises a function library for SIP, RTP, STUN, and some other Vo
15%
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
15%
Modern Fortran – Part 2
15.12.2016
Home »  HPC  »  Articles  » 
are over i = 2,n − 1 and j = 2,n −1. Here is how you can write the iteration over the domain using array notation: a(2:n-1,2:n-1) = 0.25 * &     (a(1:n-2,2:n) + a(3:n,2:n) + a(2:n,1:n-2) + a(2:n,3:n

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