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23%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
publisher TEXT, 07 authors MAP, 08 circulation INT, 09 issue TEXT, 10 PRIMARY KEY(publisher, issue, isbn) 11 ); 12 13 # INSERT INTO titles(isbn, year, title, publisher, authors, circulation
23%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
CREATE OR REPLACE FUNCTION burncpu (tm INTERVAL) 02 RETURNS INTERVAL AS $CODE$ 03 DECLARE 04 stmp TIMESTAMP := now()+tm; 05 i INT; 06 BEGIN 07 WHILE clock_timestamp()08 i:=1; 09
23%
New in PostgreSQL 9.3
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Nuno Andre, 123RF.com
not null, 07 subject text not null, 08 msg_id text not null, 09 date timestamp) 10 SERVER pg_archive_server This corresponds exactly to the definition on the archive server, but naturally
23%
Debian's quest for reproducible builds
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Author, 123RF.com
numbering 21,365 from a total of 24,135 were reproducible in Debian, which corresponds to an average of 88.5 percent in the individual branches. "Testing," with more than 90 percent, does better than
23%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
fashion when promised double-digit speedups like 10x by a vendor who has yet to see your code. Accomplishing a 10x speedup requires that 90 percent of the execution time be parallelized. The span of your
23%
Command-line tools for the HPC administrator
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Vasyl Nesterov, 123RF.com
to it, you can begin to appreciate what compilers and linkers do for users today. Listing 1 Show Linked Libraries (ldd) $ pgf90 test1.f90 -o test1 $ ldd test1 linux-vdso.so.1 => (0x
23%
SMART storage device monitoring
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Sk Design, Fotolia.com
: Samsung SSD 840 Series Serial Number: S19HNSAD620520T LU WWN Device Id: 5 002538 5a0050931 Firmware Version: DXT08B0Q User Capacity: 120,034,123,776 bytes [120 GB] Sector Size: 512 bytes logical
23%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © AndreaDanti, 123RF.com
use generic-host 03 host_name ubuntusrv 04 alias server2 05 address 192.168.7.51 06 } 07 define service{ 08 use generic-service 09 host_name ubuntusrv 10
23%
SMART Devices
14.08.2020
Home »  HPC  »  Articles  » 
 OF INFORMATION SECTION === Model Family:     Samsung based SSDs Device Model:     Samsung SSD 840 Series Serial Number:    S19HNSAD620520T LU WWN Device Id: 5 002538 5a0050931 Firmware Version: DXT08B0Q User Capacity:    120
23%
From debugging to exploiting
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Maksim Kabou, 123RF.com
. This partial protection can be enabled during compilation using the -Wl,-z,relro flags. Ancient Code and Arrays Scientists tend to code in the Fortran 77, Fortran 90, or C languages and compile and run on grid

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