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70%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
set send_slow {1 .1} 06 proc send {ignore arg} { 07 sleep .1 08 exp_send -s -- $arg 09 } 10 } 11 set timeout -1 12 spawn $env(SHELL) 13 match_max 100000 ... 12
69%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
(MOD(iter,10)==0) WRITE(*,"('iter,diff:',i6,e12.4)") iter,diff 145 146 ! Update solution 147 DO j=2,m-1 148 DO i=2,m-1 149 u(i,j) = unew(i,j) 150 ENDDO 151 ENDDO 152 ENDDO 153 154 CALL ... 12
45%
Web and Mail Servers with IPv6
13.12.2011
Home »  Articles  » 
 
We’ll help you get your servers ready for the new IPv6 Internet. ... Migrating the company’s local network to IPv6 will not make much sense in the next few years. The situation is different for leased dedicated ... If you run a web server and a mail server and anticipate that users from Asia will access your system, it’s time to get it ready for IPv6. ... Web and Mail Servers with IPv6 ... Web and Mail Servers with IPv6
44%
Exploring dhcpy6d, a DHCP server for IPv6 networks
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Paul Herbert, 123RF.com
_config = file 05 store_file_config = ./client.conf 06 07 store_volatile = sqlite 08 store_sqlite_volatile = ./volatile.sqlite 09 10 log = on 11 log_file = ./dhcpy6d.log 12 13 really_do_it = yes 14 15 dns ... Even if you don't have to have DHCP on your IPv6 network, you might want it anyway. Dhcpy6d is a promising DHCP option for IPv6. ... dhcpy6d ... Exploring dhcpy6d, a DHCP server for IPv6 networks
34%
Citrix XenServer 6.2 goes open source
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © George Tsartsianidis, 123RF.com
Open source – finally and fully! The most interesting thing about the announcement [1] of the new XenServer version 6.2 is not a technical feature from the usual list of improvements: Citrix has ... Open Source XenServer 6.2 ... Citrix XenServer 6.2 goes open source
31%
Why Good Applications Don’t Scale
13.10.2020
Home »  HPC  »  Articles  » 
You ha ve parallelized your serial application ,  but as you use more cores you are  n o t seeing any improvement  in performance . What gives? ... a : Notice that the denominator is now a function of n 2. From Equation 8 you can plot the speedup. As with the previous problem, assume a parallel portion p = 0.8, leaving a serial portion s = 0 ... You  ha ve parallelized your serial application ,  but as you use more cores you are  n o t seeing any improvement  in performance . What gives?
24%
Warewulf 4
13.12.2022
Home »  HPC  »  Articles  » 
            1.1 M  dhcp-common              noarch         12:4.3.6-47.el8                 baseos            206 k  dhcp-libs                x86_64         12:4.3.6-47.el8                 baseos            147 k
22%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
, ioengine=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1) test: (groupid=0, jobs=1): err= 0: pid=5872: Sat Jan  9 16:35:08 2021   read: IOPS=251k, BW=979MiB/s (1026MB/s)(2045MiB/2089msec
22%
Go testing frameworks
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Lucy Baldwin, 123RF.com
not present in these tests. Listing 6 Testing Framework 01 package main 02 03 import "testing" 04 05 func BenchmarkRow(b *testing.B) { 06 //b.ResetTimer() 07 for i := 0; i < b.N; i++ { 08
22%
Creating Virtual SSDs
21.01.2020
Home »  HPC  »  Articles  » 
 /proc/mdstat  Personalities : [linear] [multipath] [raid0] [raid1] [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

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