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16%
VPN clients for Android and iOS
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © fckncg, 123RF.com
established connections to a third-party server using the IPsec protocol. The test devices were an Apple iPad with the latest iOS 9 and a Samsung smartphone with Android 4.0.4, which at the time were the most
16%
Grid Engine: Running on All Four Cylinders
21.09.2012
Home »  HPC  »  Articles  » 
that Oracle has stated HPC is not a market in which they are interested. The Oracle Grid Engine Support page has plenty of information, and a 90-day free trial is purportedly available for those who register
16%
An open source object storage solution
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Pat Whelen on Unsplash
amounts of unstructured data. In this article I introduce you to MinIO, a popular object storage solution. MinIO's source code is available under the GNU Affero General Public License v3.0, which means you
16%
Fixing Ceph performance problems
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Kritiya Sumpun, 123RF.com
storage by splitting up these files and putting them back together again later. When the user uploads a file to RADOS, the client breaks it down into several 4MB objects before uploading, which RADOS
16%
Redo Backup
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Record (MBR). The current release was 1.0.4 when this issue went to press. It is based on Ubuntu 12.04.1 (LTS) but uses Openbox as a desktop window manager and provides only the applications necessary
16%
Parallel I/O Chases Amdahl Away
12.09.2022
Home »  HPC  »  Articles  » 
 = np.random.rand(nx,ny)*100.0   # Random data in arrayy       np.save(filename, a) # Write data to file       print("    Just finished writing file, ",filename,".npy") # end for The code in Listing 2 reads the five files
16%
Storage trends for taming the flood of data
27.09.2024
Home »  Archive  »  2024  »  Issue 83: Storage  » 
Lead Image © Natalia Lukiyanova, 123RF.com
, for example, the waste of storage space and energy and the unnecessary effect on service life when writing to SSDs. When you transfer 1MB to an SSD, the drives actually writes considerably more data
16%
PostgreSQL Replication Update
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Golkin Oleg, 123RF.com
can only accomplish this by rolling back one of the two transactions ex post (i.e., after the commit). For example, suppose you have $100 in a joint bank account and two people want to withdraw $90
16%
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
16%
Saving Storage Space with Reduced Precision
19.06.2023
Home »  HPC  »  Articles  » 
round to even Round to the nearest value, ties round away from zero Directed rounding toward 0 Directed rounding toward +infinity Directed rounding toward −infinity Converting from FP64

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