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14%
Parallel Programming with OpenCL
04.11.2011
Home »  HPC  »  Articles  » 
.width + kx]; 47             } 48         } 49         // Clamp values to {0, ..., 255} and store them 50         out.data[y * out.width + x] = clampuchar((int) convolutionSum); 51     } 52   } 53
14%
Troubleshooting and analyzing VoIP networks
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Ioannis Kounadeas, Fotolia.com
(R-factor). From these values, a prediction is made for speech quality ranging from 0 to 100, which can be mapped on the MOS scale (Table 3). Table 3 R-Factors and MOS Values R
14%
Look for Bottlenecks with Open|SpeedShop
21.12.2011
Home »  HPC  »  Articles  » 
.000001         0.000737     5403936  MPI_Irecv (libmpich.so.1.0: irecv.c,48) openss>>expview -f MPI_Waitall Maximum   Minimum   Average   Number  Function (defining location) MPI Call  MPI Call  Time
14%
Samba pitfalls in daily operation
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © lightwise, 123RF.com
.SEC_FLAG_MAXIMUM_ALLOWED) Listing 3 ACL Error Message root@addc-01:~# samba-tool gpo aclcheck -U administrator Password for [EXAMPLE\administrator]: ERROR: Invalid GPO ACL O:DAG:DAD:PAI(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001
13%
Ticket Management with osTicket
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Ignard ten Have, 123RF.com
Show Errors in the PHP file main.inc.php. Edit the section ini_set('display_errors',0); ini_set('display_startup_errors',0); by changing it as follows: ini_set('display_errors',1); ini
13%
pdsh Parallel Shell
08.07.2018
Home »  HPC  »  Articles  » 
.168.1.4:   1  0    0 30198704 286340 751652   0    0    2     3    48   66  1  0  98  0  0 192.168.1.250: procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- 192.168.1.250:  r
13%
Efficiently planning and expanding the capacities of a cloud
02.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © digifuture, 123RF.com
Linux. Mellanox sets a good example by offering future-proof 100Gb switches with Cumulus support. (See a previous ADMIN article [1] about the Layer 3 principle for more information.) CPU and RAM
13%
A Real-World Look at Scaling to the Amazon Cloud
04.10.2011
Home »  CloudAge  »  Articles  » 
 
, as shown in Figure 2. At the time of writing, prices per machine per hour ranged from US$ 0.02 for "Micro" on Linux/Unix to US$ 2.48 for the "Quadruple Extra Large" on Windows. Amazon's prices for EC2
13%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
have been able to do this safely and inexpensively. The MySQL database used until then had reached its limits at a size of 7TB and more than 100 million users. Two Facebook programmers, Avinash Lakshman
13%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3.0

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