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25%
Monitoring NFS Storage with nfsiostat
12.03.2013
Home »  HPC  »  Articles  » 
is shown in Listing 1. Listing 1: Sample nfsiostat Output Linux 2.6.18-308.16.1.el5.centos.plus (home8) 02/10/2013 _i686_ (1 CPU) 02/10/2013 03:38:48 PM Filesystem: rMB_nor/s wMB_nor/s
25%
When I/O Workloads Don’t Perform
12.05.2021
Home »  HPC  »  Articles  » 
  avg-cpu:  %user   %nice %system %iowait  %steal   %idle            0.76    0.00    3.03    1.26    0.00   94.95   Device            r/s     w/s     rkB/s     wkB/s   rrqm/s   wrqm/s  %rrqm  %wrqm r
25%
open64
01.08.2012
Home »  HPC  »  Articles  »  Warewulf Cluste...  »  Warewulf 3 Code  » 
 
| 4.3 MB 00:02 (2/2): nss-softokn-freebl-3.12.9-11.el6.i686.rpm | 115 kB 00:00 ... Warewulf 3 open64 code
24%
Modern Fortran – Part 1
20.10.2016
Home »  HPC  »  Articles  » 
Fortran comprises a huge body of software in high-performance computing. We look at Fortran’s evolution into a modern HPC language. ... writing code. Columns 1 to 5 could be used for statement labels such as the following: ...       SUM = 0.0       D0 100 I=1,10          SUM = SUM + REAL(I)  100  CONTINUE ...       Y = X1 + X2 + X3 ... Fortran comprises a huge body of software in high-performance computing. We look at Fortran’s evolution into a modern HPC language.
24%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=1420KiB/s][w=355 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3377: Sat Jan 9 15:31:04 2021 write: IOPS=352, BW=1410KiB/s
24%
When I/O workloads don't perform
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Viacheslav Iakobchuk, 123RF.com
Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Sun Mar 21 15:00:38 2021 UTC SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ
24%
Uncovering SQL Injections
18.03.2013
Home »  Articles  » 
 
Hardly a day goes by without reports of hackers breaking into government, military, or enterprise servers. If you analyze the details of the hacker’s approach, you will see that, in 90 percent ... is a classic bug in a web application: an SQL injection vulnerability. SQL injection, which has been known for around 12 years, is still one of the hacker’s most popular tools. This article presents real ... Hardly a day goes by without reports of hackers breaking into government, military, or enterprise servers. If you analyze the details of the hacker’s approach, you will see that, in 90 percent
24%
Win-Win with Cygwin
23.01.2012
Home »  Articles  » 
 
Windows administrators: Expand your horizons and your opportunities with Unix commands via Cygwin. Use Cygwin’s extensive list of Unix utilities for scripts, maintenance, compatibility ... ://mirrors.xmission.com . Figure 3: Choosing an available Cygwin download site. Try to choose one that’s physically close to you or that you know has bandwidth to spare. Also, you can add a URL of your own if you have ... Windows administrators: Expand your horizons and your opportunities with Unix commands via Cygwin. Use Cygwin’s extensive list of Unix utilities for scripts, maintenance, compatibility
24%
HPC Software Road Gets a Bit Smoother
10.09.2013
Home »  HPC  »  Articles  » 
Introduction of the new OpenMP specification abstracts away many of the thorny issues associated with today’s HPC hardware. ... 23,289.81 24,823.29 6% SP 19,751.24 12,061.77 39.00% a BT, block tri-diagonal; CG, conjugate gradient; EP, embarrassingly parallel; FT, 3D fast Fourier ... Introduction of the new OpenMP specification abstracts away many of the thorny issues associated with today’s HPC hardware.
24%
Monitoring Storage with iostat
25.02.2013
Home »  HPC  »  Articles  » 
0.00 01/31/2013 09:56:03 AM avg-cpu: %user %nice %system %iowait %steal %idle 6.00 0.00 2.00 0.50 0.00 91.50 Device: rrqm/s wrqm/s r/s w/s rMB/s

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