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14%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
* argv[]) 08 { 09 long niter = 1000000000; 10 int myid; //holds process's rank id 11 double x,y; //x,y value for the random coordinate 12 int i; 13
14%
Darshan I/O analysis for Deep Learning frameworks
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Michaela Murphy on Unsplash
08 integer :: counter 09 integer :: counter_limit 10 integer :: ierr 11 12 type(rec) :: my_record 13 14 counter_limit = 2000 15 16 ierr = -1 17 open(unit=8,file
14%
Unleashing Accelerated Speeds with RAM Drives
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Vladimir Nenov, 123RF.com
rapiddisk 7.2.0 Copyright 2011 - 2021 Petros Koutoupis Detached device rd1 To compare the RAM drive with a local 12Gb Serial Attached SCSI (SAS) spinning hard disk drive (HDD) connected to a 6Gb Host Bus
14%
Goodbye virtual machines, hello microVMs
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Eric Froehling on Unsplash
In two previous articles [1][2], I introduced how to bring up lightweight container machines with Footloose and cloud virtual machine stacks on a laptop with Multipass. The Footloose approach didn
14%
Finding the fastest SD cards for the Raspberry Pi
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Lead Image © Lucy Baldwin, 123RF.com
2 At least 4,000 4K random read, 2,000 write IOPSAt least 10MBps sustained sequential write As SD cards careen toward ever faster speeds, it is important to remember
14%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
c/s virtual 12 13 Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE 14 Raw: 723 c/s real, 723 c/s virtual 15 16 Benchmarking: Kerberos AFS DES [48/64 4K]... DONE 17 Short: 378501 c/s real
14%
Building a port scanner in Python
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Leo Blanchette, 123RF.com
(socket.timeout, ConnectionRefusedError): 12 pass 13 14 def port_scanner(host, start_port, end_port, threads=10): 15 print(f"Scanning {host} from port{start_port} to {end_port}") 16 17 for port
14%
We compare four popular NAS appliances
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Alejandro Mendoza, 123RF.com
. These products cost less than $1,000, including disks, and all are easy to manage, even without IT personnel. Table 1 Test Equipment Specifications   QNAP Synology Thecus
14%
Command-line tools for the HPC administrator
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Vasyl Nesterov, 123RF.com
00007fff11dc8000) libpgf90rtl.so => /opt/pgi/linux86-64/16.10/lib/libpgf90rtl.so (0x00007f5bc6516000) libpgf90.so => /opt/pgi/linux86-64/16.10/lib/libpgf90.so (0x00007f5bc5f5f000) libpgf90_rpm
14%
Secure remote access and web applications with two-factor authentication
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© maigi, 123rf.com
. Depending on the manufacturer and the method used, a distinction is made between time-based or time-synchronized tokens, TOTP (time-based one-time password algorithm, as defined in RFC 6238 [12]), and event

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