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100%
Automating command execution across servers
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Photo by Adrian Hartanto on Unsplash
Rubén Llorente ... # A single task is defined, which by default will 20 # run only against "devuan" hosts. 21 tasks: 22 upgradeall: 23 desc: Upgrade all packages 24 target: 25 tags: [devuan] 26 cmd: | 27
79%
A Brief History of Supercomputers
21.01.2021
Home »  HPC  »  Articles  » 
This first article of a series looks at the forces that have driven desktop supercomputing, beginning with the history of PC and supercomputing processors through the 1990s into the early 2000s. ... an application. The 1990s were critical to both “classic” supercomputers and PC systems. Both had advanced very quickly, setting a trajectory into the early 2000s. PC Processors in the Early 2000s In early 2001 ... This first article of a series looks at the forces that have driven desktop supercomputing, beginning with the history of PC and supercomputing processors through the 1990s into the early 2000s.
70%
Automating deployments on Proxmox with OpenTofu and cloud-init
04.12.2024
Home »  Articles  » 
Lead Image © lightwise, 123RF.com
Rubén Llorente ... _file { 18 path = "webserver.yml" 19 file_name = "user_data_vm-webserver.yml" 20 } 21 } 22 23 resource "proxmox_virtual_environment_file" "network_cloud_config" { 24 count = 4 25 content
36%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
" ; shift 20 local display_list="$1" 21 while read display width_mm height_mm width height ; do 22 if [[ "$display" == "$find_display" ]] ; then 23 echo ${width}x${height} 24
34%
Desktop Blades (of Glory)
06.05.2024
Home »  HPC  »  Articles  » 
(different from Raspberry Pi), and 2.5 or 10 Gigabit Ethernet (GbE). The card is 60x69.6mm (about 2.4x2.84 inches), which makes it a little taller than a credit card and a bit over 1U (Figure 4
33%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
_record; 14 int counter_limit; 15 16 counter_limit = 100; 17 18 for ( counter=1; counter <= counter_limit; counter++) 19 { 20 my_record.x = counter; 21 my_record.y = counter + 1
32%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
needed to reposition the read head is eliminated. The admin can monitor merging of I/O blocks with iostat -x. This assumes the use of the filesystem cache. In Listing 2, wrqm/s stands for write requests
32%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
FILE *ptr_myfile; 16 17 counter_limit = 100; 18 19 ptr_myfile=fopen("test.bin","wb"); 20 if (!ptr_myfile) 21 { 22 printf("Unable to open file!"); 23 return 1; 24 } 25 for ( counter=1; counter <= counter
32%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
SyslogFacility AUTH 20 TCPKeepAlive yes 21 UseDNS no 22 UsePrivilegeSeparation yes 23 Subsystem sftp /usr/local/libexec/sftp-server 24 Match Group sftponly 25 ChrootDirectory /export
31%
Small Tools for Managing HPC
18.10.2017
Home »  HPC  »  Articles  » 
Several very sophisticated tools can be used to manage HPC systems, but it’s the little things that make them hum. Here are a few favorites.   ... ab7000)         libc.so.6 => /lib64/libc.so.6 (0x00007f5bc46f4000)         libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f5bc44de000)         /lib64/ld-linux-x86-64.so.2 (0x000056123e669000 ... Several very sophisticated tools can be used to manage HPC systems, but it’s the little things that make them hum. Here are a few favorites. ... It’s the Little Things

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