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20%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT ### begin ssh #-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j
20%
MPI Apps with Singularity and Docker
18.03.2020
Home »  HPC  »  Articles  » 
        2 hours ago         9.83GB                                         49cbd14ae32f        3 hours ago         269MB ubuntu              18.04               72300a873c2c        3 weeks ago         64.2MB
20%
Secure Your Server with TCP Wrappers
02.10.2012
Home »  Articles  » 
 
addresses to connect /etc/hosts.allow , the file would simply look like this: sshd: 10.10.10.10, 1.2.3.4, 21.21.21.21 TCP Wrappers works nicely, even if you change the standard SSH port (it’s usually TCP
20%
Security without firewalls
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© rukanoga, 123RF.com
some IP addresses to connect /etc/hosts.allow, the file would simply look like this: sshd: 10.10.10.10, 1.2.3.4, 21.21.21.21 TCP Wrappers works nicely, even if you change the standard SSH port (it ... 12
20%
OpenACC – Porting Code
07.03.2019
Home »  HPC  »  Articles  » 
Loops Fortran C !$acc parallel loop    do i=1,n       A(i) = B(i) + C(i)    enddo   !$acc parallel loop    do j=1,m       B(i) = B(i) * D(i)    enddo         #pragma
20%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
,32 1,33 2,34 3,35 4,36 5,37 6,38 7,39 8,40 9,41 10,42 11,43 12,44 13,45 14,46 15,47 16,48 17,49 18,50 19,51 20,52 21,53 22,54 23,55 24,56 25,57 26,58 27,59 28,60 29,61 30,62 31,63 The lstopo tool
20%
Working with the Lustre Filesystem
24.02.2022
Home »  HPC  »  Articles  » 
 /usr/src/kernels/4.18.0-305.10.2.el8_4.x86_64/fs/ $ sudo mv ext4/ ext4.orig $ sudo cp -r /home/pkoutoupis/rpmbuild/SOURCES/linux-4.18.0-305.10.2.el8_4/fs/ext4 Building Lustre from Source The next steps check out
20%
Go testing frameworks
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Lucy Baldwin, 123RF.com
run("row") 09 } 10 } 11 12 func BenchmarkColumn(b *testing.B) { 13 //b.ResetTimer() 14 for i := 0; i < b.N; i++ { 15 run("column") 16 } 17 } Figure 5 shows
19%
Cross-Vendor IPsec
25.10.2011
Home »  Articles  » 
 
-algorithm sha1; 07 encryption-algorithm 3des-cbc; 08 } 09 policy test123 { 10 mode main; 11 proposals Phase1-3des-sha; 12 pre-shared-key ascii-text "$9$dQVgJiHmTF/.PO1Ehrlgoa
19%
Lustre HPC distributed filesystem
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Efe Kurnaz on Unsplash
,BROADCAST,RUNNING,MULTICAST> mtu 1460 inet 10.0.0.2 netmask 255.255.255.255 broadcast 0.0.0.0 inet6 fe80::bfd3:1a4b:f76b:872a prefixlen 64 scopeid 0x20 ether 42:01:0a:80:00:02 txqueuelen 1000

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