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15%
Law of Averages – Load Averaging
01.02.2013
Home »  Articles  » 
 
minutes of the system’s load. A plethora of tools display this metric, which is typically sourced through the getloadavg(3) [2] system call, but the Linux kernel provides a canonical filesystem source
15%
Intruder Detection with tcpdump
28.11.2011
Home »  Articles  » 
 
to show seconds and microseconds since the beginning of the Unix epoch (00:00:00 UTC on January 1, 1970) (Figure 3). Figure 3: Reporting time since
15%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
=$dbh->prepare('select burncpu(?)'); 12 $sth->execute((($ENV{QUERY_STRING}+0) || .5).'s'); 13 14 while( my $row=$sth->fetchrow_arrayref ) { 15 print "@$row\n"; 16 } Workaround The script is simple, but the attentive
15%
Building a virtual NVMe drive
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © lassedesignen, 123RF
] [raid6] [raid5] [raid4] [raid10] md0 : active raid5 sdd1[5] sde1[4] sdc1[2] sdb1[1] nvme0n1p1[0](J) 20508171264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UU
15%
mpi4py – high-performance distributed Python
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © liu liming, 123RF.com
): 11 12 s = 0.0 13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21 22 # Main section 23 comm = MPI
15%
Warewulf 4 – GPUs
20.02.2023
Home »  HPC  »  Articles  » 
: $ ls -s total 12 4 gpu_test.sh  4 run_gpu_test.sh  4 test_gpu_job_28.log The job ran successfully with the correct output (Figure 3). Figure 3: Logfile
15%
Creating Virtual SSDs
21.01.2020
Home »  HPC  »  Articles  » 
mdadm: Defaulting to version 1.2 metadata mdadm: array /dev/md0 started. Next, verify that the RAID configuration has been created (Listing 3). You will immediately notice that the array initializes
15%
Warewulf Cluster Manager – Completing the Environment
20.06.2012
Home »  HPC  »  Articles  » 
:root bin:x:1:root,bin,daemon daemon:x: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 uucp:x:14
15%
First steps in IT automation by Rex
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Konstantin Chagin , 123RF.com
@hercules 10 The key's randomart image is: 11 +--[ RSA 2048]----+ 12 | | 13 | . | 14 | E | 15 | .. . | 16 | ..o. .S | 17 | .o . oo o | 18
15%
StarCluster Toolkit: Virtualization Meets HPC
16.01.2013
Home »  HPC  »  Articles  » 
.08  590.8M   55.3M  243.2M     0.0 The batch-queuing system that manages the jobs here is Grid Engine. Job scripts submitted to the queue will wait for free slots and then execute on the basis

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