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20%
Thrashing the data cache for fun and profit
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Lucy Baldwin, 123RF.com
). Figure 1: Flattening a 2D array in C or C++. Listing 3 inspect.c #include ** int a[4][5] = { // array of 4 arrays of 5 ints each, a 4x5 matrix { 1, 2, 3
20%
Finding and recording memory errors
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © lightwise, 123RF.com
/sys Filesystem Scan #!/bin/bash # # # Original script: # https://bitbucket.org/darkfader/nagios/src/ # c9dbc15609d0/check_mk/edac/plugins/edac?at=default # The best stop for all things EDAC
20%
Your own AWS-compatible cloud with Eucalyptus
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Author, 123RF.com
and 256MB of RAM, so the suggested machine type, m1.small is sufficient (Figure 9). You can keep the defaults for the other settings. Continue by pressing Next: Select security
20%
Elastic Beanstalk
29.10.2013
Home »  Articles  » 
 
Created Auto Scaling group policy named: arn:aws:autoscaling:eu-west-1:894012917938:scalingPolicy: 927c9769-d96e-46ba-b08f-099650ae7a3d:autoScalingGroupName/awseb- e-mnpsy5bpzk
20%
LXC 1.0
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © designpics, 123RF.com
shows how the host system forwards port 443 to the container: sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to-destination 10.0.3.190:443 The lxcbr0 interface is great for testing. If
20%
Look for Bottlenecks with Open|SpeedShop
21.12.2011
Home »  HPC  »  Articles  » 
/opt/OSS-mrnet/bin/ossrun -c pcsamp ./smg2000 -n 90 90 90" Running with these driver parameters: (nx, ny, nz)    = (90, 90, 90) (Px, Py, Pz)    = (256, 1, 1) (bx, by, bz)    = (1, 1, 1) (cx, cy, cz)    = (1.000000, 1
20%
Modern Fortran – Part 1
20.10.2016
Home »  HPC  »  Articles  » 
), has to be specified. Here is a simple example of the declaration:       INTEGER, TARGET :: a(3), b(6), c(9)       INTEGER, DIMENSION(:), POINTER :: pt2 Another quick example of multidimension arrays
20%
Assess USB performance while exploring storage caching
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
(USB 2), and a Samsung Fit Plus 32 (USB 3). Disk Caches The OS is not the only player in the caching business. Examining a Samsung 750 SATA SSD drive, you cannot but notice a 256MB RAM buffer [8
20%
Creating and evaluating kernel crash dumps
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Giuseppe Ramos, 123RF.com
kernel sles:~ # grep crash /proc/cmdline root=/dev/disk/by-uuid/10a83ffe-5a9f-48a2-b8cb-551c2cc6b42d resume=/dev/sda3 splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status
19%
A Btrfs field test and workshop
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Adrian Hillman, 123RF.com
(depending on the RAID level). These chunks are usually 1GB for data and 256MB for metadata. One exception is the first metadata chunk, which mkfs.btrfs creates 1GB in size, assuming there is enough space

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